d3-state-visualizer/dist/d3-state-visualizer.umd.js

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	var d3$1 = {exports: {}};

	(function (module) {
	!function() {
	  var d3 = {
	    version: "3.5.17"
	  };
	  var d3_arraySlice = [].slice, d3_array = function(list) {
	    return d3_arraySlice.call(list);
	  };
	  var d3_document = this.document;
	  function d3_documentElement(node) {
	    return node && (node.ownerDocument || node.document || node).documentElement;
	  }
	  function d3_window(node) {
	    return node && (node.ownerDocument && node.ownerDocument.defaultView || node.document && node || node.defaultView);
	  }
	  if (d3_document) {
	    try {
	      d3_array(d3_document.documentElement.childNodes)[0].nodeType;
	    } catch (e) {
	      d3_array = function(list) {
	        var i = list.length, array = new Array(i);
	        while (i--) array[i] = list[i];
	        return array;
	      };
	    }
	  }
	  if (!Date.now) Date.now = function() {
	    return +new Date();
	  };
	  if (d3_document) {
	    try {
	      d3_document.createElement("DIV").style.setProperty("opacity", 0, "");
	    } catch (error) {
	      var d3_element_prototype = this.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = this.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
	      d3_element_prototype.setAttribute = function(name, value) {
	        d3_element_setAttribute.call(this, name, value + "");
	      };
	      d3_element_prototype.setAttributeNS = function(space, local, value) {
	        d3_element_setAttributeNS.call(this, space, local, value + "");
	      };
	      d3_style_prototype.setProperty = function(name, value, priority) {
	        d3_style_setProperty.call(this, name, value + "", priority);
	      };
	    }
	  }
	  d3.ascending = d3_ascending;
	  function d3_ascending(a, b) {
	    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
	  }
	  d3.descending = function(a, b) {
	    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
	  };
	  d3.min = function(array, f) {
	    var i = -1, n = array.length, a, b;
	    if (arguments.length === 1) {
	      while (++i < n) if ((b = array[i]) != null && b >= b) {
	        a = b;
	        break;
	      }
	      while (++i < n) if ((b = array[i]) != null && a > b) a = b;
	    } else {
	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
	        a = b;
	        break;
	      }
	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
	    }
	    return a;
	  };
	  d3.max = function(array, f) {
	    var i = -1, n = array.length, a, b;
	    if (arguments.length === 1) {
	      while (++i < n) if ((b = array[i]) != null && b >= b) {
	        a = b;
	        break;
	      }
	      while (++i < n) if ((b = array[i]) != null && b > a) a = b;
	    } else {
	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
	        a = b;
	        break;
	      }
	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
	    }
	    return a;
	  };
	  d3.extent = function(array, f) {
	    var i = -1, n = array.length, a, b, c;
	    if (arguments.length === 1) {
	      while (++i < n) if ((b = array[i]) != null && b >= b) {
	        a = c = b;
	        break;
	      }
	      while (++i < n) if ((b = array[i]) != null) {
	        if (a > b) a = b;
	        if (c < b) c = b;
	      }
	    } else {
	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
	        a = c = b;
	        break;
	      }
	      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
	        if (a > b) a = b;
	        if (c < b) c = b;
	      }
	    }
	    return [ a, c ];
	  };
	  function d3_number(x) {
	    return x === null ? NaN : +x;
	  }
	  function d3_numeric(x) {
	    return !isNaN(x);
	  }
	  d3.sum = function(array, f) {
	    var s = 0, n = array.length, a, i = -1;
	    if (arguments.length === 1) {
	      while (++i < n) if (d3_numeric(a = +array[i])) s += a;
	    } else {
	      while (++i < n) if (d3_numeric(a = +f.call(array, array[i], i))) s += a;
	    }
	    return s;
	  };
	  d3.mean = function(array, f) {
	    var s = 0, n = array.length, a, i = -1, j = n;
	    if (arguments.length === 1) {
	      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) s += a; else --j;
	    } else {
	      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) s += a; else --j;
	    }
	    if (j) return s / j;
	  };
	  d3.quantile = function(values, p) {
	    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
	    return e ? v + e * (values[h] - v) : v;
	  };
	  d3.median = function(array, f) {
	    var numbers = [], n = array.length, a, i = -1;
	    if (arguments.length === 1) {
	      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) numbers.push(a);
	    } else {
	      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) numbers.push(a);
	    }
	    if (numbers.length) return d3.quantile(numbers.sort(d3_ascending), .5);
	  };
	  d3.variance = function(array, f) {
	    var n = array.length, m = 0, a, d, s = 0, i = -1, j = 0;
	    if (arguments.length === 1) {
	      while (++i < n) {
	        if (d3_numeric(a = d3_number(array[i]))) {
	          d = a - m;
	          m += d / ++j;
	          s += d * (a - m);
	        }
	      }
	    } else {
	      while (++i < n) {
	        if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) {
	          d = a - m;
	          m += d / ++j;
	          s += d * (a - m);
	        }
	      }
	    }
	    if (j > 1) return s / (j - 1);
	  };
	  d3.deviation = function() {
	    var v = d3.variance.apply(this, arguments);
	    return v ? Math.sqrt(v) : v;
	  };
	  function d3_bisector(compare) {
	    return {
	      left: function(a, x, lo, hi) {
	        if (arguments.length < 3) lo = 0;
	        if (arguments.length < 4) hi = a.length;
	        while (lo < hi) {
	          var mid = lo + hi >>> 1;
	          if (compare(a[mid], x) < 0) lo = mid + 1; else hi = mid;
	        }
	        return lo;
	      },
	      right: function(a, x, lo, hi) {
	        if (arguments.length < 3) lo = 0;
	        if (arguments.length < 4) hi = a.length;
	        while (lo < hi) {
	          var mid = lo + hi >>> 1;
	          if (compare(a[mid], x) > 0) hi = mid; else lo = mid + 1;
	        }
	        return lo;
	      }
	    };
	  }
	  var d3_bisect = d3_bisector(d3_ascending);
	  d3.bisectLeft = d3_bisect.left;
	  d3.bisect = d3.bisectRight = d3_bisect.right;
	  d3.bisector = function(f) {
	    return d3_bisector(f.length === 1 ? function(d, x) {
	      return d3_ascending(f(d), x);
	    } : f);
	  };
	  d3.shuffle = function(array, i0, i1) {
	    if ((m = arguments.length) < 3) {
	      i1 = array.length;
	      if (m < 2) i0 = 0;
	    }
	    var m = i1 - i0, t, i;
	    while (m) {
	      i = Math.random() * m-- | 0;
	      t = array[m + i0], array[m + i0] = array[i + i0], array[i + i0] = t;
	    }
	    return array;
	  };
	  d3.permute = function(array, indexes) {
	    var i = indexes.length, permutes = new Array(i);
	    while (i--) permutes[i] = array[indexes[i]];
	    return permutes;
	  };
	  d3.pairs = function(array) {
	    var i = 0, n = array.length - 1, p1 = array[0], pairs = new Array(n < 0 ? 0 : n);
	    while (i < n) pairs[i] = [ p1, p1 = array[++i] ];
	    return pairs;
	  };
	  d3.transpose = function(matrix) {
	    if (!(n = matrix.length)) return [];
	    for (var i = -1, m = d3.min(matrix, d3_transposeLength), transpose = new Array(m); ++i < m; ) {
	      for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n; ) {
	        row[j] = matrix[j][i];
	      }
	    }
	    return transpose;
	  };
	  function d3_transposeLength(d) {
	    return d.length;
	  }
	  d3.zip = function() {
	    return d3.transpose(arguments);
	  };
	  d3.keys = function(map) {
	    var keys = [];
	    for (var key in map) keys.push(key);
	    return keys;
	  };
	  d3.values = function(map) {
	    var values = [];
	    for (var key in map) values.push(map[key]);
	    return values;
	  };
	  d3.entries = function(map) {
	    var entries = [];
	    for (var key in map) entries.push({
	      key: key,
	      value: map[key]
	    });
	    return entries;
	  };
	  d3.merge = function(arrays) {
	    var n = arrays.length, m, i = -1, j = 0, merged, array;
	    while (++i < n) j += arrays[i].length;
	    merged = new Array(j);
	    while (--n >= 0) {
	      array = arrays[n];
	      m = array.length;
	      while (--m >= 0) {
	        merged[--j] = array[m];
	      }
	    }
	    return merged;
	  };
	  var abs = Math.abs;
	  d3.range = function(start, stop, step) {
	    if (arguments.length < 3) {
	      step = 1;
	      if (arguments.length < 2) {
	        stop = start;
	        start = 0;
	      }
	    }
	    if ((stop - start) / step === Infinity) throw new Error("infinite range");
	    var range = [], k = d3_range_integerScale(abs(step)), i = -1, j;
	    start *= k, stop *= k, step *= k;
	    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);
	    return range;
	  };
	  function d3_range_integerScale(x) {
	    var k = 1;
	    while (x * k % 1) k *= 10;
	    return k;
	  }
	  function d3_class(ctor, properties) {
	    for (var key in properties) {
	      Object.defineProperty(ctor.prototype, key, {
	        value: properties[key],
	        enumerable: false
	      });
	    }
	  }
	  d3.map = function(object, f) {
	    var map = new d3_Map();
	    if (object instanceof d3_Map) {
	      object.forEach(function(key, value) {
	        map.set(key, value);
	      });
	    } else if (Array.isArray(object)) {
	      var i = -1, n = object.length, o;
	      if (arguments.length === 1) while (++i < n) map.set(i, object[i]); else while (++i < n) map.set(f.call(object, o = object[i], i), o);
	    } else {
	      for (var key in object) map.set(key, object[key]);
	    }
	    return map;
	  };
	  function d3_Map() {
	    this._ = Object.create(null);
	  }
	  var d3_map_proto = "__proto__", d3_map_zero = "\x00";
	  d3_class(d3_Map, {
	    has: d3_map_has,
	    get: function(key) {
	      return this._[d3_map_escape(key)];
	    },
	    set: function(key, value) {
	      return this._[d3_map_escape(key)] = value;
	    },
	    remove: d3_map_remove,
	    keys: d3_map_keys,
	    values: function() {
	      var values = [];
	      for (var key in this._) values.push(this._[key]);
	      return values;
	    },
	    entries: function() {
	      var entries = [];
	      for (var key in this._) entries.push({
	        key: d3_map_unescape(key),
	        value: this._[key]
	      });
	      return entries;
	    },
	    size: d3_map_size,
	    empty: d3_map_empty,
	    forEach: function(f) {
	      for (var key in this._) f.call(this, d3_map_unescape(key), this._[key]);
	    }
	  });
	  function d3_map_escape(key) {
	    return (key += "") === d3_map_proto || key[0] === d3_map_zero ? d3_map_zero + key : key;
	  }
	  function d3_map_unescape(key) {
	    return (key += "")[0] === d3_map_zero ? key.slice(1) : key;
	  }
	  function d3_map_has(key) {
	    return d3_map_escape(key) in this._;
	  }
	  function d3_map_remove(key) {
	    return (key = d3_map_escape(key)) in this._ && delete this._[key];
	  }
	  function d3_map_keys() {
	    var keys = [];
	    for (var key in this._) keys.push(d3_map_unescape(key));
	    return keys;
	  }
	  function d3_map_size() {
	    var size = 0;
	    for (var key in this._) ++size;
	    return size;
	  }
	  function d3_map_empty() {
	    for (var key in this._) return false;
	    return true;
	  }
	  d3.nest = function() {
	    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
	    function map(mapType, array, depth) {
	      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;
	      var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values;
	      while (++i < n) {
	        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
	          values.push(object);
	        } else {
	          valuesByKey.set(keyValue, [ object ]);
	        }
	      }
	      if (mapType) {
	        object = mapType();
	        setter = function(keyValue, values) {
	          object.set(keyValue, map(mapType, values, depth));
	        };
	      } else {
	        object = {};
	        setter = function(keyValue, values) {
	          object[keyValue] = map(mapType, values, depth);
	        };
	      }
	      valuesByKey.forEach(setter);
	      return object;
	    }
	    function entries(map, depth) {
	      if (depth >= keys.length) return map;
	      var array = [], sortKey = sortKeys[depth++];
	      map.forEach(function(key, keyMap) {
	        array.push({
	          key: key,
	          values: entries(keyMap, depth)
	        });
	      });
	      return sortKey ? array.sort(function(a, b) {
	        return sortKey(a.key, b.key);
	      }) : array;
	    }
	    nest.map = function(array, mapType) {
	      return map(mapType, array, 0);
	    };
	    nest.entries = function(array) {
	      return entries(map(d3.map, array, 0), 0);
	    };
	    nest.key = function(d) {
	      keys.push(d);
	      return nest;
	    };
	    nest.sortKeys = function(order) {
	      sortKeys[keys.length - 1] = order;
	      return nest;
	    };
	    nest.sortValues = function(order) {
	      sortValues = order;
	      return nest;
	    };
	    nest.rollup = function(f) {
	      rollup = f;
	      return nest;
	    };
	    return nest;
	  };
	  d3.set = function(array) {
	    var set = new d3_Set();
	    if (array) for (var i = 0, n = array.length; i < n; ++i) set.add(array[i]);
	    return set;
	  };
	  function d3_Set() {
	    this._ = Object.create(null);
	  }
	  d3_class(d3_Set, {
	    has: d3_map_has,
	    add: function(key) {
	      this._[d3_map_escape(key += "")] = true;
	      return key;
	    },
	    remove: d3_map_remove,
	    values: d3_map_keys,
	    size: d3_map_size,
	    empty: d3_map_empty,
	    forEach: function(f) {
	      for (var key in this._) f.call(this, d3_map_unescape(key));
	    }
	  });
	  d3.behavior = {};
	  function d3_identity(d) {
	    return d;
	  }
	  d3.rebind = function(target, source) {
	    var i = 1, n = arguments.length, method;
	    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
	    return target;
	  };
	  function d3_rebind(target, source, method) {
	    return function() {
	      var value = method.apply(source, arguments);
	      return value === source ? target : value;
	    };
	  }
	  function d3_vendorSymbol(object, name) {
	    if (name in object) return name;
	    name = name.charAt(0).toUpperCase() + name.slice(1);
	    for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) {
	      var prefixName = d3_vendorPrefixes[i] + name;
	      if (prefixName in object) return prefixName;
	    }
	  }
	  var d3_vendorPrefixes = [ "webkit", "ms", "moz", "Moz", "o", "O" ];
	  function d3_noop() {}
	  d3.dispatch = function() {
	    var dispatch = new d3_dispatch(), i = -1, n = arguments.length;
	    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
	    return dispatch;
	  };
	  function d3_dispatch() {}
	  d3_dispatch.prototype.on = function(type, listener) {
	    var i = type.indexOf("."), name = "";
	    if (i >= 0) {
	      name = type.slice(i + 1);
	      type = type.slice(0, i);
	    }
	    if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
	    if (arguments.length === 2) {
	      if (listener == null) for (type in this) {
	        if (this.hasOwnProperty(type)) this[type].on(name, null);
	      }
	      return this;
	    }
	  };
	  function d3_dispatch_event(dispatch) {
	    var listeners = [], listenerByName = new d3_Map();
	    function event() {
	      var z = listeners, i = -1, n = z.length, l;
	      while (++i < n) if (l = z[i].on) l.apply(this, arguments);
	      return dispatch;
	    }
	    event.on = function(name, listener) {
	      var l = listenerByName.get(name), i;
	      if (arguments.length < 2) return l && l.on;
	      if (l) {
	        l.on = null;
	        listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
	        listenerByName.remove(name);
	      }
	      if (listener) listeners.push(listenerByName.set(name, {
	        on: listener
	      }));
	      return dispatch;
	    };
	    return event;
	  }
	  d3.event = null;
	  function d3_eventPreventDefault() {
	    d3.event.preventDefault();
	  }
	  function d3_eventSource() {
	    var e = d3.event, s;
	    while (s = e.sourceEvent) e = s;
	    return e;
	  }
	  function d3_eventDispatch(target) {
	    var dispatch = new d3_dispatch(), i = 0, n = arguments.length;
	    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
	    dispatch.of = function(thiz, argumentz) {
	      return function(e1) {
	        try {
	          var e0 = e1.sourceEvent = d3.event;
	          e1.target = target;
	          d3.event = e1;
	          dispatch[e1.type].apply(thiz, argumentz);
	        } finally {
	          d3.event = e0;
	        }
	      };
	    };
	    return dispatch;
	  }
	  d3.requote = function(s) {
	    return s.replace(d3_requote_re, "\\$&");
	  };
	  var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
	  var d3_subclass = function(object, prototype) {
	    for (var property in prototype) object[property] = prototype[property];
	  };
	  function d3_selection(groups) {
	    d3_subclass(groups, d3_selectionPrototype);
	    return groups;
	  }
	  var d3_select = function(s, n) {
	    return n.querySelector(s);
	  }, d3_selectAll = function(s, n) {
	    return n.querySelectorAll(s);
	  }, d3_selectMatches = function(n, s) {
	    var d3_selectMatcher = n.matches || n[d3_vendorSymbol(n, "matchesSelector")];
	    d3_selectMatches = function(n, s) {
	      return d3_selectMatcher.call(n, s);
	    };
	    return d3_selectMatches(n, s);
	  };
	  if (typeof Sizzle === "function") {
	    d3_select = function(s, n) {
	      return Sizzle(s, n)[0] || null;
	    };
	    d3_selectAll = Sizzle;
	    d3_selectMatches = Sizzle.matchesSelector;
	  }
	  d3.selection = function() {
	    return d3.select(d3_document.documentElement);
	  };
	  var d3_selectionPrototype = d3.selection.prototype = [];
	  d3_selectionPrototype.select = function(selector) {
	    var subgroups = [], subgroup, subnode, group, node;
	    selector = d3_selection_selector(selector);
	    for (var j = -1, m = this.length; ++j < m; ) {
	      subgroups.push(subgroup = []);
	      subgroup.parentNode = (group = this[j]).parentNode;
	      for (var i = -1, n = group.length; ++i < n; ) {
	        if (node = group[i]) {
	          subgroup.push(subnode = selector.call(node, node.__data__, i, j));
	          if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
	        } else {
	          subgroup.push(null);
	        }
	      }
	    }
	    return d3_selection(subgroups);
	  };
	  function d3_selection_selector(selector) {
	    return typeof selector === "function" ? selector : function() {
	      return d3_select(selector, this);
	    };
	  }
	  d3_selectionPrototype.selectAll = function(selector) {
	    var subgroups = [], subgroup, node;
	    selector = d3_selection_selectorAll(selector);
	    for (var j = -1, m = this.length; ++j < m; ) {
	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
	        if (node = group[i]) {
	          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i, j)));
	          subgroup.parentNode = node;
	        }
	      }
	    }
	    return d3_selection(subgroups);
	  };
	  function d3_selection_selectorAll(selector) {
	    return typeof selector === "function" ? selector : function() {
	      return d3_selectAll(selector, this);
	    };
	  }
	  var d3_nsXhtml = "http://www.w3.org/1999/xhtml";
	  var d3_nsPrefix = {
	    svg: "http://www.w3.org/2000/svg",
	    xhtml: d3_nsXhtml,
	    xlink: "http://www.w3.org/1999/xlink",
	    xml: "http://www.w3.org/XML/1998/namespace",
	    xmlns: "http://www.w3.org/2000/xmlns/"
	  };
	  d3.ns = {
	    prefix: d3_nsPrefix,
	    qualify: function(name) {
	      var i = name.indexOf(":"), prefix = name;
	      if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
	      return d3_nsPrefix.hasOwnProperty(prefix) ? {
	        space: d3_nsPrefix[prefix],
	        local: name
	      } : name;
	    }
	  };
	  d3_selectionPrototype.attr = function(name, value) {
	    if (arguments.length < 2) {
	      if (typeof name === "string") {
	        var node = this.node();
	        name = d3.ns.qualify(name);
	        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);
	      }
	      for (value in name) this.each(d3_selection_attr(value, name[value]));
	      return this;
	    }
	    return this.each(d3_selection_attr(name, value));
	  };
	  function d3_selection_attr(name, value) {
	    name = d3.ns.qualify(name);
	    function attrNull() {
	      this.removeAttribute(name);
	    }
	    function attrNullNS() {
	      this.removeAttributeNS(name.space, name.local);
	    }
	    function attrConstant() {
	      this.setAttribute(name, value);
	    }
	    function attrConstantNS() {
	      this.setAttributeNS(name.space, name.local, value);
	    }
	    function attrFunction() {
	      var x = value.apply(this, arguments);
	      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);
	    }
	    function attrFunctionNS() {
	      var x = value.apply(this, arguments);
	      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
	    }
	    return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;
	  }
	  function d3_collapse(s) {
	    return s.trim().replace(/\s+/g, " ");
	  }
	  d3_selectionPrototype.classed = function(name, value) {
	    if (arguments.length < 2) {
	      if (typeof name === "string") {
	        var node = this.node(), n = (name = d3_selection_classes(name)).length, i = -1;
	        if (value = node.classList) {
	          while (++i < n) if (!value.contains(name[i])) return false;
	        } else {
	          value = node.getAttribute("class");
	          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;
	        }
	        return true;
	      }
	      for (value in name) this.each(d3_selection_classed(value, name[value]));
	      return this;
	    }
	    return this.each(d3_selection_classed(name, value));
	  };
	  function d3_selection_classedRe(name) {
	    return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
	  }
	  function d3_selection_classes(name) {
	    return (name + "").trim().split(/^|\s+/);
	  }
	  function d3_selection_classed(name, value) {
	    name = d3_selection_classes(name).map(d3_selection_classedName);
	    var n = name.length;
	    function classedConstant() {
	      var i = -1;
	      while (++i < n) name[i](this, value);
	    }
	    function classedFunction() {
	      var i = -1, x = value.apply(this, arguments);
	      while (++i < n) name[i](this, x);
	    }
	    return typeof value === "function" ? classedFunction : classedConstant;
	  }
	  function d3_selection_classedName(name) {
	    var re = d3_selection_classedRe(name);
	    return function(node, value) {
	      if (c = node.classList) return value ? c.add(name) : c.remove(name);
	      var c = node.getAttribute("class") || "";
	      if (value) {
	        re.lastIndex = 0;
	        if (!re.test(c)) node.setAttribute("class", d3_collapse(c + " " + name));
	      } else {
	        node.setAttribute("class", d3_collapse(c.replace(re, " ")));
	      }
	    };
	  }
	  d3_selectionPrototype.style = function(name, value, priority) {
	    var n = arguments.length;
	    if (n < 3) {
	      if (typeof name !== "string") {
	        if (n < 2) value = "";
	        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));
	        return this;
	      }
	      if (n < 2) {
	        var node = this.node();
	        return d3_window(node).getComputedStyle(node, null).getPropertyValue(name);
	      }
	      priority = "";
	    }
	    return this.each(d3_selection_style(name, value, priority));
	  };
	  function d3_selection_style(name, value, priority) {
	    function styleNull() {
	      this.style.removeProperty(name);
	    }
	    function styleConstant() {
	      this.style.setProperty(name, value, priority);
	    }
	    function styleFunction() {
	      var x = value.apply(this, arguments);
	      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);
	    }
	    return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;
	  }
	  d3_selectionPrototype.property = function(name, value) {
	    if (arguments.length < 2) {
	      if (typeof name === "string") return this.node()[name];
	      for (value in name) this.each(d3_selection_property(value, name[value]));
	      return this;
	    }
	    return this.each(d3_selection_property(name, value));
	  };
	  function d3_selection_property(name, value) {
	    function propertyNull() {
	      delete this[name];
	    }
	    function propertyConstant() {
	      this[name] = value;
	    }
	    function propertyFunction() {
	      var x = value.apply(this, arguments);
	      if (x == null) delete this[name]; else this[name] = x;
	    }
	    return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
	  }
	  d3_selectionPrototype.text = function(value) {
	    return arguments.length ? this.each(typeof value === "function" ? function() {
	      var v = value.apply(this, arguments);
	      this.textContent = v == null ? "" : v;
	    } : value == null ? function() {
	      this.textContent = "";
	    } : function() {
	      this.textContent = value;
	    }) : this.node().textContent;
	  };
	  d3_selectionPrototype.html = function(value) {
	    return arguments.length ? this.each(typeof value === "function" ? function() {
	      var v = value.apply(this, arguments);
	      this.innerHTML = v == null ? "" : v;
	    } : value == null ? function() {
	      this.innerHTML = "";
	    } : function() {
	      this.innerHTML = value;
	    }) : this.node().innerHTML;
	  };
	  d3_selectionPrototype.append = function(name) {
	    name = d3_selection_creator(name);
	    return this.select(function() {
	      return this.appendChild(name.apply(this, arguments));
	    });
	  };
	  function d3_selection_creator(name) {
	    function create() {
	      var document = this.ownerDocument, namespace = this.namespaceURI;
	      return namespace === d3_nsXhtml && document.documentElement.namespaceURI === d3_nsXhtml ? document.createElement(name) : document.createElementNS(namespace, name);
	    }
	    function createNS() {
	      return this.ownerDocument.createElementNS(name.space, name.local);
	    }
	    return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? createNS : create;
	  }
	  d3_selectionPrototype.insert = function(name, before) {
	    name = d3_selection_creator(name);
	    before = d3_selection_selector(before);
	    return this.select(function() {
	      return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null);
	    });
	  };
	  d3_selectionPrototype.remove = function() {
	    return this.each(d3_selectionRemove);
	  };
	  function d3_selectionRemove() {
	    var parent = this.parentNode;
	    if (parent) parent.removeChild(this);
	  }
	  d3_selectionPrototype.data = function(value, key) {
	    var i = -1, n = this.length, group, node;
	    if (!arguments.length) {
	      value = new Array(n = (group = this[0]).length);
	      while (++i < n) {
	        if (node = group[i]) {
	          value[i] = node.__data__;
	        }
	      }
	      return value;
	    }
	    function bind(group, groupData) {
	      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData;
	      if (key) {
	        var nodeByKeyValue = new d3_Map(), keyValues = new Array(n), keyValue;
	        for (i = -1; ++i < n; ) {
	          if (node = group[i]) {
	            if (nodeByKeyValue.has(keyValue = key.call(node, node.__data__, i))) {
	              exitNodes[i] = node;
	            } else {
	              nodeByKeyValue.set(keyValue, node);
	            }
	            keyValues[i] = keyValue;
	          }
	        }
	        for (i = -1; ++i < m; ) {
	          if (!(node = nodeByKeyValue.get(keyValue = key.call(groupData, nodeData = groupData[i], i)))) {
	            enterNodes[i] = d3_selection_dataNode(nodeData);
	          } else if (node !== true) {
	            updateNodes[i] = node;
	            node.__data__ = nodeData;
	          }
	          nodeByKeyValue.set(keyValue, true);
	        }
	        for (i = -1; ++i < n; ) {
	          if (i in keyValues && nodeByKeyValue.get(keyValues[i]) !== true) {
	            exitNodes[i] = group[i];
	          }
	        }
	      } else {
	        for (i = -1; ++i < n0; ) {
	          node = group[i];
	          nodeData = groupData[i];
	          if (node) {
	            node.__data__ = nodeData;
	            updateNodes[i] = node;
	          } else {
	            enterNodes[i] = d3_selection_dataNode(nodeData);
	          }
	        }
	        for (;i < m; ++i) {
	          enterNodes[i] = d3_selection_dataNode(groupData[i]);
	        }
	        for (;i < n; ++i) {
	          exitNodes[i] = group[i];
	        }
	      }
	      enterNodes.update = updateNodes;
	      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
	      enter.push(enterNodes);
	      update.push(updateNodes);
	      exit.push(exitNodes);
	    }
	    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);
	    if (typeof value === "function") {
	      while (++i < n) {
	        bind(group = this[i], value.call(group, group.parentNode.__data__, i));
	      }
	    } else {
	      while (++i < n) {
	        bind(group = this[i], value);
	      }
	    }
	    update.enter = function() {
	      return enter;
	    };
	    update.exit = function() {
	      return exit;
	    };
	    return update;
	  };
	  function d3_selection_dataNode(data) {
	    return {
	      __data__: data
	    };
	  }
	  d3_selectionPrototype.datum = function(value) {
	    return arguments.length ? this.property("__data__", value) : this.property("__data__");
	  };
	  d3_selectionPrototype.filter = function(filter) {
	    var subgroups = [], subgroup, group, node;
	    if (typeof filter !== "function") filter = d3_selection_filter(filter);
	    for (var j = 0, m = this.length; j < m; j++) {
	      subgroups.push(subgroup = []);
	      subgroup.parentNode = (group = this[j]).parentNode;
	      for (var i = 0, n = group.length; i < n; i++) {
	        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
	          subgroup.push(node);
	        }
	      }
	    }
	    return d3_selection(subgroups);
	  };
	  function d3_selection_filter(selector) {
	    return function() {
	      return d3_selectMatches(this, selector);
	    };
	  }
	  d3_selectionPrototype.order = function() {
	    for (var j = -1, m = this.length; ++j < m; ) {
	      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {
	        if (node = group[i]) {
	          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
	          next = node;
	        }
	      }
	    }
	    return this;
	  };
	  d3_selectionPrototype.sort = function(comparator) {
	    comparator = d3_selection_sortComparator.apply(this, arguments);
	    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);
	    return this.order();
	  };
	  function d3_selection_sortComparator(comparator) {
	    if (!arguments.length) comparator = d3_ascending;
	    return function(a, b) {
	      return a && b ? comparator(a.__data__, b.__data__) : !a - !b;
	    };
	  }
	  d3_selectionPrototype.each = function(callback) {
	    return d3_selection_each(this, function(node, i, j) {
	      callback.call(node, node.__data__, i, j);
	    });
	  };
	  function d3_selection_each(groups, callback) {
	    for (var j = 0, m = groups.length; j < m; j++) {
	      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {
	        if (node = group[i]) callback(node, i, j);
	      }
	    }
	    return groups;
	  }
	  d3_selectionPrototype.call = function(callback) {
	    var args = d3_array(arguments);
	    callback.apply(args[0] = this, args);
	    return this;
	  };
	  d3_selectionPrototype.empty = function() {
	    return !this.node();
	  };
	  d3_selectionPrototype.node = function() {
	    for (var j = 0, m = this.length; j < m; j++) {
	      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
	        var node = group[i];
	        if (node) return node;
	      }
	    }
	    return null;
	  };
	  d3_selectionPrototype.size = function() {
	    var n = 0;
	    d3_selection_each(this, function() {
	      ++n;
	    });
	    return n;
	  };
	  function d3_selection_enter(selection) {
	    d3_subclass(selection, d3_selection_enterPrototype);
	    return selection;
	  }
	  var d3_selection_enterPrototype = [];
	  d3.selection.enter = d3_selection_enter;
	  d3.selection.enter.prototype = d3_selection_enterPrototype;
	  d3_selection_enterPrototype.append = d3_selectionPrototype.append;
	  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
	  d3_selection_enterPrototype.node = d3_selectionPrototype.node;
	  d3_selection_enterPrototype.call = d3_selectionPrototype.call;
	  d3_selection_enterPrototype.size = d3_selectionPrototype.size;
	  d3_selection_enterPrototype.select = function(selector) {
	    var subgroups = [], subgroup, subnode, upgroup, group, node;
	    for (var j = -1, m = this.length; ++j < m; ) {
	      upgroup = (group = this[j]).update;
	      subgroups.push(subgroup = []);
	      subgroup.parentNode = group.parentNode;
	      for (var i = -1, n = group.length; ++i < n; ) {
	        if (node = group[i]) {
	          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i, j));
	          subnode.__data__ = node.__data__;
	        } else {
	          subgroup.push(null);
	        }
	      }
	    }
	    return d3_selection(subgroups);
	  };
	  d3_selection_enterPrototype.insert = function(name, before) {
	    if (arguments.length < 2) before = d3_selection_enterInsertBefore(this);
	    return d3_selectionPrototype.insert.call(this, name, before);
	  };
	  function d3_selection_enterInsertBefore(enter) {
	    var i0, j0;
	    return function(d, i, j) {
	      var group = enter[j].update, n = group.length, node;
	      if (j != j0) j0 = j, i0 = 0;
	      if (i >= i0) i0 = i + 1;
	      while (!(node = group[i0]) && ++i0 < n) ;
	      return node;
	    };
	  }
	  d3.select = function(node) {
	    var group;
	    if (typeof node === "string") {
	      group = [ d3_select(node, d3_document) ];
	      group.parentNode = d3_document.documentElement;
	    } else {
	      group = [ node ];
	      group.parentNode = d3_documentElement(node);
	    }
	    return d3_selection([ group ]);
	  };
	  d3.selectAll = function(nodes) {
	    var group;
	    if (typeof nodes === "string") {
	      group = d3_array(d3_selectAll(nodes, d3_document));
	      group.parentNode = d3_document.documentElement;
	    } else {
	      group = d3_array(nodes);
	      group.parentNode = null;
	    }
	    return d3_selection([ group ]);
	  };
	  d3_selectionPrototype.on = function(type, listener, capture) {
	    var n = arguments.length;
	    if (n < 3) {
	      if (typeof type !== "string") {
	        if (n < 2) listener = false;
	        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));
	        return this;
	      }
	      if (n < 2) return (n = this.node()["__on" + type]) && n._;
	      capture = false;
	    }
	    return this.each(d3_selection_on(type, listener, capture));
	  };
	  function d3_selection_on(type, listener, capture) {
	    var name = "__on" + type, i = type.indexOf("."), wrap = d3_selection_onListener;
	    if (i > 0) type = type.slice(0, i);
	    var filter = d3_selection_onFilters.get(type);
	    if (filter) type = filter, wrap = d3_selection_onFilter;
	    function onRemove() {
	      var l = this[name];
	      if (l) {
	        this.removeEventListener(type, l, l.$);
	        delete this[name];
	      }
	    }
	    function onAdd() {
	      var l = wrap(listener, d3_array(arguments));
	      onRemove.call(this);
	      this.addEventListener(type, this[name] = l, l.$ = capture);
	      l._ = listener;
	    }
	    function removeAll() {
	      var re = new RegExp("^__on([^.]+)" + d3.requote(type) + "$"), match;
	      for (var name in this) {
	        if (match = name.match(re)) {
	          var l = this[name];
	          this.removeEventListener(match[1], l, l.$);
	          delete this[name];
	        }
	      }
	    }
	    return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll;
	  }
	  var d3_selection_onFilters = d3.map({
	    mouseenter: "mouseover",
	    mouseleave: "mouseout"
	  });
	  if (d3_document) {
	    d3_selection_onFilters.forEach(function(k) {
	      if ("on" + k in d3_document) d3_selection_onFilters.remove(k);
	    });
	  }
	  function d3_selection_onListener(listener, argumentz) {
	    return function(e) {
	      var o = d3.event;
	      d3.event = e;
	      argumentz[0] = this.__data__;
	      try {
	        listener.apply(this, argumentz);
	      } finally {
	        d3.event = o;
	      }
	    };
	  }
	  function d3_selection_onFilter(listener, argumentz) {
	    var l = d3_selection_onListener(listener, argumentz);
	    return function(e) {
	      var target = this, related = e.relatedTarget;
	      if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) {
	        l.call(target, e);
	      }
	    };
	  }
	  var d3_event_dragSelect, d3_event_dragId = 0;
	  function d3_event_dragSuppress(node) {
	    var name = ".dragsuppress-" + ++d3_event_dragId, click = "click" + name, w = d3.select(d3_window(node)).on("touchmove" + name, d3_eventPreventDefault).on("dragstart" + name, d3_eventPreventDefault).on("selectstart" + name, d3_eventPreventDefault);
	    if (d3_event_dragSelect == null) {
	      d3_event_dragSelect = "onselectstart" in node ? false : d3_vendorSymbol(node.style, "userSelect");
	    }
	    if (d3_event_dragSelect) {
	      var style = d3_documentElement(node).style, select = style[d3_event_dragSelect];
	      style[d3_event_dragSelect] = "none";
	    }
	    return function(suppressClick) {
	      w.on(name, null);
	      if (d3_event_dragSelect) style[d3_event_dragSelect] = select;
	      if (suppressClick) {
	        var off = function() {
	          w.on(click, null);
	        };
	        w.on(click, function() {
	          d3_eventPreventDefault();
	          off();
	        }, true);
	        setTimeout(off, 0);
	      }
	    };
	  }
	  d3.mouse = function(container) {
	    return d3_mousePoint(container, d3_eventSource());
	  };
	  var d3_mouse_bug44083 = this.navigator && /WebKit/.test(this.navigator.userAgent) ? -1 : 0;
	  function d3_mousePoint(container, e) {
	    if (e.changedTouches) e = e.changedTouches[0];
	    var svg = container.ownerSVGElement || container;
	    if (svg.createSVGPoint) {
	      var point = svg.createSVGPoint();
	      if (d3_mouse_bug44083 < 0) {
	        var window = d3_window(container);
	        if (window.scrollX || window.scrollY) {
	          svg = d3.select("body").append("svg").style({
	            position: "absolute",
	            top: 0,
	            left: 0,
	            margin: 0,
	            padding: 0,
	            border: "none"
	          }, "important");
	          var ctm = svg[0][0].getScreenCTM();
	          d3_mouse_bug44083 = !(ctm.f || ctm.e);
	          svg.remove();
	        }
	      }
	      if (d3_mouse_bug44083) point.x = e.pageX, point.y = e.pageY; else point.x = e.clientX, 
	      point.y = e.clientY;
	      point = point.matrixTransform(container.getScreenCTM().inverse());
	      return [ point.x, point.y ];
	    }
	    var rect = container.getBoundingClientRect();
	    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];
	  }
	  d3.touch = function(container, touches, identifier) {
	    if (arguments.length < 3) identifier = touches, touches = d3_eventSource().changedTouches;
	    if (touches) for (var i = 0, n = touches.length, touch; i < n; ++i) {
	      if ((touch = touches[i]).identifier === identifier) {
	        return d3_mousePoint(container, touch);
	      }
	    }
	  };
	  d3.behavior.drag = function() {
	    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, d3_window, "mousemove", "mouseup"), touchstart = dragstart(d3_behavior_dragTouchId, d3.touch, d3_identity, "touchmove", "touchend");
	    function drag() {
	      this.on("mousedown.drag", mousedown).on("touchstart.drag", touchstart);
	    }
	    function dragstart(id, position, subject, move, end) {
	      return function() {
	        var that = this, target = d3.event.target.correspondingElement || d3.event.target, parent = that.parentNode, dispatch = event.of(that, arguments), dragged = 0, dragId = id(), dragName = ".drag" + (dragId == null ? "" : "-" + dragId), dragOffset, dragSubject = d3.select(subject(target)).on(move + dragName, moved).on(end + dragName, ended), dragRestore = d3_event_dragSuppress(target), position0 = position(parent, dragId);
	        if (origin) {
	          dragOffset = origin.apply(that, arguments);
	          dragOffset = [ dragOffset.x - position0[0], dragOffset.y - position0[1] ];
	        } else {
	          dragOffset = [ 0, 0 ];
	        }
	        dispatch({
	          type: "dragstart"
	        });
	        function moved() {
	          var position1 = position(parent, dragId), dx, dy;
	          if (!position1) return;
	          dx = position1[0] - position0[0];
	          dy = position1[1] - position0[1];
	          dragged |= dx | dy;
	          position0 = position1;
	          dispatch({
	            type: "drag",
	            x: position1[0] + dragOffset[0],
	            y: position1[1] + dragOffset[1],
	            dx: dx,
	            dy: dy
	          });
	        }
	        function ended() {
	          if (!position(parent, dragId)) return;
	          dragSubject.on(move + dragName, null).on(end + dragName, null);
	          dragRestore(dragged);
	          dispatch({
	            type: "dragend"
	          });
	        }
	      };
	    }
	    drag.origin = function(x) {
	      if (!arguments.length) return origin;
	      origin = x;
	      return drag;
	    };
	    return d3.rebind(drag, event, "on");
	  };
	  function d3_behavior_dragTouchId() {
	    return d3.event.changedTouches[0].identifier;
	  }
	  d3.touches = function(container, touches) {
	    if (arguments.length < 2) touches = d3_eventSource().touches;
	    return touches ? d3_array(touches).map(function(touch) {
	      var point = d3_mousePoint(container, touch);
	      point.identifier = touch.identifier;
	      return point;
	    }) : [];
	  };
	  var ε = 1e-6, ε2 = ε * ε, π = Math.PI, τ = 2 * π, τε = τ - ε, halfπ = π / 2, d3_radians = π / 180, d3_degrees = 180 / π;
	  function d3_sgn(x) {
	    return x > 0 ? 1 : x < 0 ? -1 : 0;
	  }
	  function d3_cross2d(a, b, c) {
	    return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
	  }
	  function d3_acos(x) {
	    return x > 1 ? 0 : x < -1 ? π : Math.acos(x);
	  }
	  function d3_asin(x) {
	    return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x);
	  }
	  function d3_sinh(x) {
	    return ((x = Math.exp(x)) - 1 / x) / 2;
	  }
	  function d3_cosh(x) {
	    return ((x = Math.exp(x)) + 1 / x) / 2;
	  }
	  function d3_tanh(x) {
	    return ((x = Math.exp(2 * x)) - 1) / (x + 1);
	  }
	  function d3_haversin(x) {
	    return (x = Math.sin(x / 2)) * x;
	  }
	  var ρ = Math.SQRT2, ρ2 = 2, ρ4 = 4;
	  d3.interpolateZoom = function(p0, p1) {
	    var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], ux1 = p1[0], uy1 = p1[1], w1 = p1[2], dx = ux1 - ux0, dy = uy1 - uy0, d2 = dx * dx + dy * dy, i, S;
	    if (d2 < ε2) {
	      S = Math.log(w1 / w0) / ρ;
	      i = function(t) {
	        return [ ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(ρ * t * S) ];
	      };
	    } else {
	      var d1 = Math.sqrt(d2), b0 = (w1 * w1 - w0 * w0 + ρ4 * d2) / (2 * w0 * ρ2 * d1), b1 = (w1 * w1 - w0 * w0 - ρ4 * d2) / (2 * w1 * ρ2 * d1), r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
	      S = (r1 - r0) / ρ;
	      i = function(t) {
	        var s = t * S, coshr0 = d3_cosh(r0), u = w0 / (ρ2 * d1) * (coshr0 * d3_tanh(ρ * s + r0) - d3_sinh(r0));
	        return [ ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / d3_cosh(ρ * s + r0) ];
	      };
	    }
	    i.duration = S * 1e3;
	    return i;
	  };
	  d3.behavior.zoom = function() {
	    var view = {
	      x: 0,
	      y: 0,
	      k: 1
	    }, translate0, center0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, duration = 250, zooming = 0, mousedown = "mousedown.zoom", mousemove = "mousemove.zoom", mouseup = "mouseup.zoom", mousewheelTimer, touchstart = "touchstart.zoom", touchtime, event = d3_eventDispatch(zoom, "zoomstart", "zoom", "zoomend"), x0, x1, y0, y1;
	    if (!d3_behavior_zoomWheel) {
	      d3_behavior_zoomWheel = "onwheel" in d3_document ? (d3_behavior_zoomDelta = function() {
	        return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1);
	      }, "wheel") : "onmousewheel" in d3_document ? (d3_behavior_zoomDelta = function() {
	        return d3.event.wheelDelta;
	      }, "mousewheel") : (d3_behavior_zoomDelta = function() {
	        return -d3.event.detail;
	      }, "MozMousePixelScroll");
	    }
	    function zoom(g) {
	      g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + ".zoom", mousewheeled).on("dblclick.zoom", dblclicked).on(touchstart, touchstarted);
	    }
	    zoom.event = function(g) {
	      g.each(function() {
	        var dispatch = event.of(this, arguments), view1 = view;
	        if (d3_transitionInheritId) {
	          d3.select(this).transition().each("start.zoom", function() {
	            view = this.__chart__ || {
	              x: 0,
	              y: 0,
	              k: 1
	            };
	            zoomstarted(dispatch);
	          }).tween("zoom:zoom", function() {
	            var dx = size[0], dy = size[1], cx = center0 ? center0[0] : dx / 2, cy = center0 ? center0[1] : dy / 2, i = d3.interpolateZoom([ (cx - view.x) / view.k, (cy - view.y) / view.k, dx / view.k ], [ (cx - view1.x) / view1.k, (cy - view1.y) / view1.k, dx / view1.k ]);
	            return function(t) {
	              var l = i(t), k = dx / l[2];
	              this.__chart__ = view = {
	                x: cx - l[0] * k,
	                y: cy - l[1] * k,
	                k: k
	              };
	              zoomed(dispatch);
	            };
	          }).each("interrupt.zoom", function() {
	            zoomended(dispatch);
	          }).each("end.zoom", function() {
	            zoomended(dispatch);
	          });
	        } else {
	          this.__chart__ = view;
	          zoomstarted(dispatch);
	          zoomed(dispatch);
	          zoomended(dispatch);
	        }
	      });
	    };
	    zoom.translate = function(_) {
	      if (!arguments.length) return [ view.x, view.y ];
	      view = {
	        x: +_[0],
	        y: +_[1],
	        k: view.k
	      };
	      rescale();
	      return zoom;
	    };
	    zoom.scale = function(_) {
	      if (!arguments.length) return view.k;
	      view = {
	        x: view.x,
	        y: view.y,
	        k: null
	      };
	      scaleTo(+_);
	      rescale();
	      return zoom;
	    };
	    zoom.scaleExtent = function(_) {
	      if (!arguments.length) return scaleExtent;
	      scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ];
	      return zoom;
	    };
	    zoom.center = function(_) {
	      if (!arguments.length) return center;
	      center = _ && [ +_[0], +_[1] ];
	      return zoom;
	    };
	    zoom.size = function(_) {
	      if (!arguments.length) return size;
	      size = _ && [ +_[0], +_[1] ];
	      return zoom;
	    };
	    zoom.duration = function(_) {
	      if (!arguments.length) return duration;
	      duration = +_;
	      return zoom;
	    };
	    zoom.x = function(z) {
	      if (!arguments.length) return x1;
	      x1 = z;
	      x0 = z.copy();
	      view = {
	        x: 0,
	        y: 0,
	        k: 1
	      };
	      return zoom;
	    };
	    zoom.y = function(z) {
	      if (!arguments.length) return y1;
	      y1 = z;
	      y0 = z.copy();
	      view = {
	        x: 0,
	        y: 0,
	        k: 1
	      };
	      return zoom;
	    };
	    function location(p) {
	      return [ (p[0] - view.x) / view.k, (p[1] - view.y) / view.k ];
	    }
	    function point(l) {
	      return [ l[0] * view.k + view.x, l[1] * view.k + view.y ];
	    }
	    function scaleTo(s) {
	      view.k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
	    }
	    function translateTo(p, l) {
	      l = point(l);
	      view.x += p[0] - l[0];
	      view.y += p[1] - l[1];
	    }
	    function zoomTo(that, p, l, k) {
	      that.__chart__ = {
	        x: view.x,
	        y: view.y,
	        k: view.k
	      };
	      scaleTo(Math.pow(2, k));
	      translateTo(center0 = p, l);
	      that = d3.select(that);
	      if (duration > 0) that = that.transition().duration(duration);
	      that.call(zoom.event);
	    }
	    function rescale() {
	      if (x1) x1.domain(x0.range().map(function(x) {
	        return (x - view.x) / view.k;
	      }).map(x0.invert));
	      if (y1) y1.domain(y0.range().map(function(y) {
	        return (y - view.y) / view.k;
	      }).map(y0.invert));
	    }
	    function zoomstarted(dispatch) {
	      if (!zooming++) dispatch({
	        type: "zoomstart"
	      });
	    }
	    function zoomed(dispatch) {
	      rescale();
	      dispatch({
	        type: "zoom",
	        scale: view.k,
	        translate: [ view.x, view.y ]
	      });
	    }
	    function zoomended(dispatch) {
	      if (!--zooming) dispatch({
	        type: "zoomend"
	      }), center0 = null;
	    }
	    function mousedowned() {
	      var that = this, dispatch = event.of(that, arguments), dragged = 0, subject = d3.select(d3_window(that)).on(mousemove, moved).on(mouseup, ended), location0 = location(d3.mouse(that)), dragRestore = d3_event_dragSuppress(that);
	      d3_selection_interrupt.call(that);
	      zoomstarted(dispatch);
	      function moved() {
	        dragged = 1;
	        translateTo(d3.mouse(that), location0);
	        zoomed(dispatch);
	      }
	      function ended() {
	        subject.on(mousemove, null).on(mouseup, null);
	        dragRestore(dragged);
	        zoomended(dispatch);
	      }
	    }
	    function touchstarted() {
	      var that = this, dispatch = event.of(that, arguments), locations0 = {}, distance0 = 0, scale0, zoomName = ".zoom-" + d3.event.changedTouches[0].identifier, touchmove = "touchmove" + zoomName, touchend = "touchend" + zoomName, targets = [], subject = d3.select(that), dragRestore = d3_event_dragSuppress(that);
	      started();
	      zoomstarted(dispatch);
	      subject.on(mousedown, null).on(touchstart, started);
	      function relocate() {
	        var touches = d3.touches(that);
	        scale0 = view.k;
	        touches.forEach(function(t) {
	          if (t.identifier in locations0) locations0[t.identifier] = location(t);
	        });
	        return touches;
	      }
	      function started() {
	        var target = d3.event.target;
	        d3.select(target).on(touchmove, moved).on(touchend, ended);
	        targets.push(target);
	        var changed = d3.event.changedTouches;
	        for (var i = 0, n = changed.length; i < n; ++i) {
	          locations0[changed[i].identifier] = null;
	        }
	        var touches = relocate(), now = Date.now();
	        if (touches.length === 1) {
	          if (now - touchtime < 500) {
	            var p = touches[0];
	            zoomTo(that, p, locations0[p.identifier], Math.floor(Math.log(view.k) / Math.LN2) + 1);
	            d3_eventPreventDefault();
	          }
	          touchtime = now;
	        } else if (touches.length > 1) {
	          var p = touches[0], q = touches[1], dx = p[0] - q[0], dy = p[1] - q[1];
	          distance0 = dx * dx + dy * dy;
	        }
	      }
	      function moved() {
	        var touches = d3.touches(that), p0, l0, p1, l1;
	        d3_selection_interrupt.call(that);
	        for (var i = 0, n = touches.length; i < n; ++i, l1 = null) {
	          p1 = touches[i];
	          if (l1 = locations0[p1.identifier]) {
	            if (l0) break;
	            p0 = p1, l0 = l1;
	          }
	        }
	        if (l1) {
	          var distance1 = (distance1 = p1[0] - p0[0]) * distance1 + (distance1 = p1[1] - p0[1]) * distance1, scale1 = distance0 && Math.sqrt(distance1 / distance0);
	          p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
	          l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
	          scaleTo(scale1 * scale0);
	        }
	        touchtime = null;
	        translateTo(p0, l0);
	        zoomed(dispatch);
	      }
	      function ended() {
	        if (d3.event.touches.length) {
	          var changed = d3.event.changedTouches;
	          for (var i = 0, n = changed.length; i < n; ++i) {
	            delete locations0[changed[i].identifier];
	          }
	          for (var identifier in locations0) {
	            return void relocate();
	          }
	        }
	        d3.selectAll(targets).on(zoomName, null);
	        subject.on(mousedown, mousedowned).on(touchstart, touchstarted);
	        dragRestore();
	        zoomended(dispatch);
	      }
	    }
	    function mousewheeled() {
	      var dispatch = event.of(this, arguments);
	      if (mousewheelTimer) clearTimeout(mousewheelTimer); else d3_selection_interrupt.call(this), 
	      translate0 = location(center0 = center || d3.mouse(this)), zoomstarted(dispatch);
	      mousewheelTimer = setTimeout(function() {
	        mousewheelTimer = null;
	        zoomended(dispatch);
	      }, 50);
	      d3_eventPreventDefault();
	      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k);
	      translateTo(center0, translate0);
	      zoomed(dispatch);
	    }
	    function dblclicked() {
	      var p = d3.mouse(this), k = Math.log(view.k) / Math.LN2;
	      zoomTo(this, p, location(p), d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1);
	    }
	    return d3.rebind(zoom, event, "on");
	  };
	  var d3_behavior_zoomInfinity = [ 0, Infinity ], d3_behavior_zoomDelta, d3_behavior_zoomWheel;
	  d3.color = d3_color;
	  function d3_color() {}
	  d3_color.prototype.toString = function() {
	    return this.rgb() + "";
	  };
	  d3.hsl = d3_hsl;
	  function d3_hsl(h, s, l) {
	    return this instanceof d3_hsl ? void (this.h = +h, this.s = +s, this.l = +l) : arguments.length < 2 ? h instanceof d3_hsl ? new d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : new d3_hsl(h, s, l);
	  }
	  var d3_hslPrototype = d3_hsl.prototype = new d3_color();
	  d3_hslPrototype.brighter = function(k) {
	    k = Math.pow(.7, arguments.length ? k : 1);
	    return new d3_hsl(this.h, this.s, this.l / k);
	  };
	  d3_hslPrototype.darker = function(k) {
	    k = Math.pow(.7, arguments.length ? k : 1);
	    return new d3_hsl(this.h, this.s, k * this.l);
	  };
	  d3_hslPrototype.rgb = function() {
	    return d3_hsl_rgb(this.h, this.s, this.l);
	  };
	  function d3_hsl_rgb(h, s, l) {
	    var m1, m2;
	    h = isNaN(h) ? 0 : (h %= 360) < 0 ? h + 360 : h;
	    s = isNaN(s) ? 0 : s < 0 ? 0 : s > 1 ? 1 : s;
	    l = l < 0 ? 0 : l > 1 ? 1 : l;
	    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
	    m1 = 2 * l - m2;
	    function v(h) {
	      if (h > 360) h -= 360; else if (h < 0) h += 360;
	      if (h < 60) return m1 + (m2 - m1) * h / 60;
	      if (h < 180) return m2;
	      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
	      return m1;
	    }
	    function vv(h) {
	      return Math.round(v(h) * 255);
	    }
	    return new d3_rgb(vv(h + 120), vv(h), vv(h - 120));
	  }
	  d3.hcl = d3_hcl;
	  function d3_hcl(h, c, l) {
	    return this instanceof d3_hcl ? void (this.h = +h, this.c = +c, this.l = +l) : arguments.length < 2 ? h instanceof d3_hcl ? new d3_hcl(h.h, h.c, h.l) : h instanceof d3_lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : new d3_hcl(h, c, l);
	  }
	  var d3_hclPrototype = d3_hcl.prototype = new d3_color();
	  d3_hclPrototype.brighter = function(k) {
	    return new d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
	  };
	  d3_hclPrototype.darker = function(k) {
	    return new d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
	  };
	  d3_hclPrototype.rgb = function() {
	    return d3_hcl_lab(this.h, this.c, this.l).rgb();
	  };
	  function d3_hcl_lab(h, c, l) {
	    if (isNaN(h)) h = 0;
	    if (isNaN(c)) c = 0;
	    return new d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);
	  }
	  d3.lab = d3_lab;
	  function d3_lab(l, a, b) {
	    return this instanceof d3_lab ? void (this.l = +l, this.a = +a, this.b = +b) : arguments.length < 2 ? l instanceof d3_lab ? new d3_lab(l.l, l.a, l.b) : l instanceof d3_hcl ? d3_hcl_lab(l.h, l.c, l.l) : d3_rgb_lab((l = d3_rgb(l)).r, l.g, l.b) : new d3_lab(l, a, b);
	  }
	  var d3_lab_K = 18;
	  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
	  var d3_labPrototype = d3_lab.prototype = new d3_color();
	  d3_labPrototype.brighter = function(k) {
	    return new d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
	  };
	  d3_labPrototype.darker = function(k) {
	    return new d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
	  };
	  d3_labPrototype.rgb = function() {
	    return d3_lab_rgb(this.l, this.a, this.b);
	  };
	  function d3_lab_rgb(l, a, b) {
	    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;
	    x = d3_lab_xyz(x) * d3_lab_X;
	    y = d3_lab_xyz(y) * d3_lab_Y;
	    z = d3_lab_xyz(z) * d3_lab_Z;
	    return new d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));
	  }
	  function d3_lab_hcl(l, a, b) {
	    return l > 0 ? new d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : new d3_hcl(NaN, NaN, l);
	  }
	  function d3_lab_xyz(x) {
	    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
	  }
	  function d3_xyz_lab(x) {
	    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
	  }
	  function d3_xyz_rgb(r) {
	    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));
	  }
	  d3.rgb = d3_rgb;
	  function d3_rgb(r, g, b) {
	    return this instanceof d3_rgb ? void (this.r = ~~r, this.g = ~~g, this.b = ~~b) : arguments.length < 2 ? r instanceof d3_rgb ? new d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : new d3_rgb(r, g, b);
	  }
	  function d3_rgbNumber(value) {
	    return new d3_rgb(value >> 16, value >> 8 & 255, value & 255);
	  }
	  function d3_rgbString(value) {
	    return d3_rgbNumber(value) + "";
	  }
	  var d3_rgbPrototype = d3_rgb.prototype = new d3_color();
	  d3_rgbPrototype.brighter = function(k) {
	    k = Math.pow(.7, arguments.length ? k : 1);
	    var r = this.r, g = this.g, b = this.b, i = 30;
	    if (!r && !g && !b) return new d3_rgb(i, i, i);
	    if (r && r < i) r = i;
	    if (g && g < i) g = i;
	    if (b && b < i) b = i;
	    return new d3_rgb(Math.min(255, r / k), Math.min(255, g / k), Math.min(255, b / k));
	  };
	  d3_rgbPrototype.darker = function(k) {
	    k = Math.pow(.7, arguments.length ? k : 1);
	    return new d3_rgb(k * this.r, k * this.g, k * this.b);
	  };
	  d3_rgbPrototype.hsl = function() {
	    return d3_rgb_hsl(this.r, this.g, this.b);
	  };
	  d3_rgbPrototype.toString = function() {
	    return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
	  };
	  function d3_rgb_hex(v) {
	    return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);
	  }
	  function d3_rgb_parse(format, rgb, hsl) {
	    var r = 0, g = 0, b = 0, m1, m2, color;
	    m1 = /([a-z]+)\((.*)\)/.exec(format = format.toLowerCase());
	    if (m1) {
	      m2 = m1[2].split(",");
	      switch (m1[1]) {
	       case "hsl":
	        {
	          return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);
	        }

	       case "rgb":
	        {
	          return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));
	        }
	      }
	    }
	    if (color = d3_rgb_names.get(format)) {
	      return rgb(color.r, color.g, color.b);
	    }
	    if (format != null && format.charAt(0) === "#" && !isNaN(color = parseInt(format.slice(1), 16))) {
	      if (format.length === 4) {
	        r = (color & 3840) >> 4;
	        r = r >> 4 | r;
	        g = color & 240;
	        g = g >> 4 | g;
	        b = color & 15;
	        b = b << 4 | b;
	      } else if (format.length === 7) {
	        r = (color & 16711680) >> 16;
	        g = (color & 65280) >> 8;
	        b = color & 255;
	      }
	    }
	    return rgb(r, g, b);
	  }
	  function d3_rgb_hsl(r, g, b) {
	    var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2;
	    if (d) {
	      s = l < .5 ? d / (max + min) : d / (2 - max - min);
	      if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4;
	      h *= 60;
	    } else {
	      h = NaN;
	      s = l > 0 && l < 1 ? 0 : h;
	    }
	    return new d3_hsl(h, s, l);
	  }
	  function d3_rgb_lab(r, g, b) {
	    r = d3_rgb_xyz(r);
	    g = d3_rgb_xyz(g);
	    b = d3_rgb_xyz(b);
	    var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z);
	    return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z));
	  }
	  function d3_rgb_xyz(r) {
	    return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4);
	  }
	  function d3_rgb_parseNumber(c) {
	    var f = parseFloat(c);
	    return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
	  }
	  var d3_rgb_names = d3.map({
	    aliceblue: 15792383,
	    antiquewhite: 16444375,
	    aqua: 65535,
	    aquamarine: 8388564,
	    azure: 15794175,
	    beige: 16119260,
	    bisque: 16770244,
	    black: 0,
	    blanchedalmond: 16772045,
	    blue: 255,
	    blueviolet: 9055202,
	    brown: 10824234,
	    burlywood: 14596231,
	    cadetblue: 6266528,
	    chartreuse: 8388352,
	    chocolate: 13789470,
	    coral: 16744272,
	    cornflowerblue: 6591981,
	    cornsilk: 16775388,
	    crimson: 14423100,
	    cyan: 65535,
	    darkblue: 139,
	    darkcyan: 35723,
	    darkgoldenrod: 12092939,
	    darkgray: 11119017,
	    darkgreen: 25600,
	    darkgrey: 11119017,
	    darkkhaki: 12433259,
	    darkmagenta: 9109643,
	    darkolivegreen: 5597999,
	    darkorange: 16747520,
	    darkorchid: 10040012,
	    darkred: 9109504,
	    darksalmon: 15308410,
	    darkseagreen: 9419919,
	    darkslateblue: 4734347,
	    darkslategray: 3100495,
	    darkslategrey: 3100495,
	    darkturquoise: 52945,
	    darkviolet: 9699539,
	    deeppink: 16716947,
	    deepskyblue: 49151,
	    dimgray: 6908265,
	    dimgrey: 6908265,
	    dodgerblue: 2003199,
	    firebrick: 11674146,
	    floralwhite: 16775920,
	    forestgreen: 2263842,
	    fuchsia: 16711935,
	    gainsboro: 14474460,
	    ghostwhite: 16316671,
	    gold: 16766720,
	    goldenrod: 14329120,
	    gray: 8421504,
	    green: 32768,
	    greenyellow: 11403055,
	    grey: 8421504,
	    honeydew: 15794160,
	    hotpink: 16738740,
	    indianred: 13458524,
	    indigo: 4915330,
	    ivory: 16777200,
	    khaki: 15787660,
	    lavender: 15132410,
	    lavenderblush: 16773365,
	    lawngreen: 8190976,
	    lemonchiffon: 16775885,
	    lightblue: 11393254,
	    lightcoral: 15761536,
	    lightcyan: 14745599,
	    lightgoldenrodyellow: 16448210,
	    lightgray: 13882323,
	    lightgreen: 9498256,
	    lightgrey: 13882323,
	    lightpink: 16758465,
	    lightsalmon: 16752762,
	    lightseagreen: 2142890,
	    lightskyblue: 8900346,
	    lightslategray: 7833753,
	    lightslategrey: 7833753,
	    lightsteelblue: 11584734,
	    lightyellow: 16777184,
	    lime: 65280,
	    limegreen: 3329330,
	    linen: 16445670,
	    magenta: 16711935,
	    maroon: 8388608,
	    mediumaquamarine: 6737322,
	    mediumblue: 205,
	    mediumorchid: 12211667,
	    mediumpurple: 9662683,
	    mediumseagreen: 3978097,
	    mediumslateblue: 8087790,
	    mediumspringgreen: 64154,
	    mediumturquoise: 4772300,
	    mediumvioletred: 13047173,
	    midnightblue: 1644912,
	    mintcream: 16121850,
	    mistyrose: 16770273,
	    moccasin: 16770229,
	    navajowhite: 16768685,
	    navy: 128,
	    oldlace: 16643558,
	    olive: 8421376,
	    olivedrab: 7048739,
	    orange: 16753920,
	    orangered: 16729344,
	    orchid: 14315734,
	    palegoldenrod: 15657130,
	    palegreen: 10025880,
	    paleturquoise: 11529966,
	    palevioletred: 14381203,
	    papayawhip: 16773077,
	    peachpuff: 16767673,
	    peru: 13468991,
	    pink: 16761035,
	    plum: 14524637,
	    powderblue: 11591910,
	    purple: 8388736,
	    rebeccapurple: 6697881,
	    red: 16711680,
	    rosybrown: 12357519,
	    royalblue: 4286945,
	    saddlebrown: 9127187,
	    salmon: 16416882,
	    sandybrown: 16032864,
	    seagreen: 3050327,
	    seashell: 16774638,
	    sienna: 10506797,
	    silver: 12632256,
	    skyblue: 8900331,
	    slateblue: 6970061,
	    slategray: 7372944,
	    slategrey: 7372944,
	    snow: 16775930,
	    springgreen: 65407,
	    steelblue: 4620980,
	    tan: 13808780,
	    teal: 32896,
	    thistle: 14204888,
	    tomato: 16737095,
	    turquoise: 4251856,
	    violet: 15631086,
	    wheat: 16113331,
	    white: 16777215,
	    whitesmoke: 16119285,
	    yellow: 16776960,
	    yellowgreen: 10145074
	  });
	  d3_rgb_names.forEach(function(key, value) {
	    d3_rgb_names.set(key, d3_rgbNumber(value));
	  });
	  function d3_functor(v) {
	    return typeof v === "function" ? v : function() {
	      return v;
	    };
	  }
	  d3.functor = d3_functor;
	  d3.xhr = d3_xhrType(d3_identity);
	  function d3_xhrType(response) {
	    return function(url, mimeType, callback) {
	      if (arguments.length === 2 && typeof mimeType === "function") callback = mimeType, 
	      mimeType = null;
	      return d3_xhr(url, mimeType, response, callback);
	    };
	  }
	  function d3_xhr(url, mimeType, response, callback) {
	    var xhr = {}, dispatch = d3.dispatch("beforesend", "progress", "load", "error"), headers = {}, request = new XMLHttpRequest(), responseType = null;
	    if (this.XDomainRequest && !("withCredentials" in request) && /^(http(s)?:)?\/\//.test(url)) request = new XDomainRequest();
	    "onload" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() {
	      request.readyState > 3 && respond();
	    };
	    function respond() {
	      var status = request.status, result;
	      if (!status && d3_xhrHasResponse(request) || status >= 200 && status < 300 || status === 304) {
	        try {
	          result = response.call(xhr, request);
	        } catch (e) {
	          dispatch.error.call(xhr, e);
	          return;
	        }
	        dispatch.load.call(xhr, result);
	      } else {
	        dispatch.error.call(xhr, request);
	      }
	    }
	    request.onprogress = function(event) {
	      var o = d3.event;
	      d3.event = event;
	      try {
	        dispatch.progress.call(xhr, request);
	      } finally {
	        d3.event = o;
	      }
	    };
	    xhr.header = function(name, value) {
	      name = (name + "").toLowerCase();
	      if (arguments.length < 2) return headers[name];
	      if (value == null) delete headers[name]; else headers[name] = value + "";
	      return xhr;
	    };
	    xhr.mimeType = function(value) {
	      if (!arguments.length) return mimeType;
	      mimeType = value == null ? null : value + "";
	      return xhr;
	    };
	    xhr.responseType = function(value) {
	      if (!arguments.length) return responseType;
	      responseType = value;
	      return xhr;
	    };
	    xhr.response = function(value) {
	      response = value;
	      return xhr;
	    };
	    [ "get", "post" ].forEach(function(method) {
	      xhr[method] = function() {
	        return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments)));
	      };
	    });
	    xhr.send = function(method, data, callback) {
	      if (arguments.length === 2 && typeof data === "function") callback = data, data = null;
	      request.open(method, url, true);
	      if (mimeType != null && !("accept" in headers)) headers["accept"] = mimeType + ",*/*";
	      if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]);
	      if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType);
	      if (responseType != null) request.responseType = responseType;
	      if (callback != null) xhr.on("error", callback).on("load", function(request) {
	        callback(null, request);
	      });
	      dispatch.beforesend.call(xhr, request);
	      request.send(data == null ? null : data);
	      return xhr;
	    };
	    xhr.abort = function() {
	      request.abort();
	      return xhr;
	    };
	    d3.rebind(xhr, dispatch, "on");
	    return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback));
	  }
	  function d3_xhr_fixCallback(callback) {
	    return callback.length === 1 ? function(error, request) {
	      callback(error == null ? request : null);
	    } : callback;
	  }
	  function d3_xhrHasResponse(request) {
	    var type = request.responseType;
	    return type && type !== "text" ? request.response : request.responseText;
	  }
	  d3.dsv = function(delimiter, mimeType) {
	    var reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
	    function dsv(url, row, callback) {
	      if (arguments.length < 3) callback = row, row = null;
	      var xhr = d3_xhr(url, mimeType, row == null ? response : typedResponse(row), callback);
	      xhr.row = function(_) {
	        return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row;
	      };
	      return xhr;
	    }
	    function response(request) {
	      return dsv.parse(request.responseText);
	    }
	    function typedResponse(f) {
	      return function(request) {
	        return dsv.parse(request.responseText, f);
	      };
	    }
	    dsv.parse = function(text, f) {
	      var o;
	      return dsv.parseRows(text, function(row, i) {
	        if (o) return o(row, i - 1);
	        var a = new Function("d", "return {" + row.map(function(name, i) {
	          return JSON.stringify(name) + ": d[" + i + "]";
	        }).join(",") + "}");
	        o = f ? function(row, i) {
	          return f(a(row), i);
	        } : a;
	      });
	    };
	    dsv.parseRows = function(text, f) {
	      var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol;
	      function token() {
	        if (I >= N) return EOF;
	        if (eol) return eol = false, EOL;
	        var j = I;
	        if (text.charCodeAt(j) === 34) {
	          var i = j;
	          while (i++ < N) {
	            if (text.charCodeAt(i) === 34) {
	              if (text.charCodeAt(i + 1) !== 34) break;
	              ++i;
	            }
	          }
	          I = i + 2;
	          var c = text.charCodeAt(i + 1);
	          if (c === 13) {
	            eol = true;
	            if (text.charCodeAt(i + 2) === 10) ++I;
	          } else if (c === 10) {
	            eol = true;
	          }
	          return text.slice(j + 1, i).replace(/""/g, '"');
	        }
	        while (I < N) {
	          var c = text.charCodeAt(I++), k = 1;
	          if (c === 10) eol = true; else if (c === 13) {
	            eol = true;
	            if (text.charCodeAt(I) === 10) ++I, ++k;
	          } else if (c !== delimiterCode) continue;
	          return text.slice(j, I - k);
	        }
	        return text.slice(j);
	      }
	      while ((t = token()) !== EOF) {
	        var a = [];
	        while (t !== EOL && t !== EOF) {
	          a.push(t);
	          t = token();
	        }
	        if (f && (a = f(a, n++)) == null) continue;
	        rows.push(a);
	      }
	      return rows;
	    };
	    dsv.format = function(rows) {
	      if (Array.isArray(rows[0])) return dsv.formatRows(rows);
	      var fieldSet = new d3_Set(), fields = [];
	      rows.forEach(function(row) {
	        for (var field in row) {
	          if (!fieldSet.has(field)) {
	            fields.push(fieldSet.add(field));
	          }
	        }
	      });
	      return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) {
	        return fields.map(function(field) {
	          return formatValue(row[field]);
	        }).join(delimiter);
	      })).join("\n");
	    };
	    dsv.formatRows = function(rows) {
	      return rows.map(formatRow).join("\n");
	    };
	    function formatRow(row) {
	      return row.map(formatValue).join(delimiter);
	    }
	    function formatValue(text) {
	      return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
	    }
	    return dsv;
	  };
	  d3.csv = d3.dsv(",", "text/csv");
	  d3.tsv = d3.dsv("	", "text/tab-separated-values");
	  var d3_timer_queueHead, d3_timer_queueTail, d3_timer_interval, d3_timer_timeout, d3_timer_frame = this[d3_vendorSymbol(this, "requestAnimationFrame")] || function(callback) {
	    setTimeout(callback, 17);
	  };
	  d3.timer = function() {
	    d3_timer.apply(this, arguments);
	  };
	  function d3_timer(callback, delay, then) {
	    var n = arguments.length;
	    if (n < 2) delay = 0;
	    if (n < 3) then = Date.now();
	    var time = then + delay, timer = {
	      c: callback,
	      t: time,
	      n: null
	    };
	    if (d3_timer_queueTail) d3_timer_queueTail.n = timer; else d3_timer_queueHead = timer;
	    d3_timer_queueTail = timer;
	    if (!d3_timer_interval) {
	      d3_timer_timeout = clearTimeout(d3_timer_timeout);
	      d3_timer_interval = 1;
	      d3_timer_frame(d3_timer_step);
	    }
	    return timer;
	  }
	  function d3_timer_step() {
	    var now = d3_timer_mark(), delay = d3_timer_sweep() - now;
	    if (delay > 24) {
	      if (isFinite(delay)) {
	        clearTimeout(d3_timer_timeout);
	        d3_timer_timeout = setTimeout(d3_timer_step, delay);
	      }
	      d3_timer_interval = 0;
	    } else {
	      d3_timer_interval = 1;
	      d3_timer_frame(d3_timer_step);
	    }
	  }
	  d3.timer.flush = function() {
	    d3_timer_mark();
	    d3_timer_sweep();
	  };
	  function d3_timer_mark() {
	    var now = Date.now(), timer = d3_timer_queueHead;
	    while (timer) {
	      if (now >= timer.t && timer.c(now - timer.t)) timer.c = null;
	      timer = timer.n;
	    }
	    return now;
	  }
	  function d3_timer_sweep() {
	    var t0, t1 = d3_timer_queueHead, time = Infinity;
	    while (t1) {
	      if (t1.c) {
	        if (t1.t < time) time = t1.t;
	        t1 = (t0 = t1).n;
	      } else {
	        t1 = t0 ? t0.n = t1.n : d3_timer_queueHead = t1.n;
	      }
	    }
	    d3_timer_queueTail = t0;
	    return time;
	  }
	  function d3_format_precision(x, p) {
	    return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1);
	  }
	  d3.round = function(x, n) {
	    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
	  };
	  var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);
	  d3.formatPrefix = function(value, precision) {
	    var i = 0;
	    if (value = +value) {
	      if (value < 0) value *= -1;
	      if (precision) value = d3.round(value, d3_format_precision(value, precision));
	      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
	      i = Math.max(-24, Math.min(24, Math.floor((i - 1) / 3) * 3));
	    }
	    return d3_formatPrefixes[8 + i / 3];
	  };
	  function d3_formatPrefix(d, i) {
	    var k = Math.pow(10, abs(8 - i) * 3);
	    return {
	      scale: i > 8 ? function(d) {
	        return d / k;
	      } : function(d) {
	        return d * k;
	      },
	      symbol: d
	    };
	  }
	  function d3_locale_numberFormat(locale) {
	    var locale_decimal = locale.decimal, locale_thousands = locale.thousands, locale_grouping = locale.grouping, locale_currency = locale.currency, formatGroup = locale_grouping && locale_thousands ? function(value, width) {
	      var i = value.length, t = [], j = 0, g = locale_grouping[0], length = 0;
	      while (i > 0 && g > 0) {
	        if (length + g + 1 > width) g = Math.max(1, width - length);
	        t.push(value.substring(i -= g, i + g));
	        if ((length += g + 1) > width) break;
	        g = locale_grouping[j = (j + 1) % locale_grouping.length];
	      }
	      return t.reverse().join(locale_thousands);
	    } : d3_identity;
	    return function(specifier) {
	      var match = d3_format_re.exec(specifier), fill = match[1] || " ", align = match[2] || ">", sign = match[3] || "-", symbol = match[4] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, prefix = "", suffix = "", integer = false, exponent = true;
	      if (precision) precision = +precision.substring(1);
	      if (zfill || fill === "0" && align === "=") {
	        zfill = fill = "0";
	        align = "=";
	      }
	      switch (type) {
	       case "n":
	        comma = true;
	        type = "g";
	        break;

	       case "%":
	        scale = 100;
	        suffix = "%";
	        type = "f";
	        break;

	       case "p":
	        scale = 100;
	        suffix = "%";
	        type = "r";
	        break;

	       case "b":
	       case "o":
	       case "x":
	       case "X":
	        if (symbol === "#") prefix = "0" + type.toLowerCase();

	       case "c":
	        exponent = false;

	       case "d":
	        integer = true;
	        precision = 0;
	        break;

	       case "s":
	        scale = -1;
	        type = "r";
	        break;
	      }
	      if (symbol === "$") prefix = locale_currency[0], suffix = locale_currency[1];
	      if (type == "r" && !precision) type = "g";
	      if (precision != null) {
	        if (type == "g") precision = Math.max(1, Math.min(21, precision)); else if (type == "e" || type == "f") precision = Math.max(0, Math.min(20, precision));
	      }
	      type = d3_format_types.get(type) || d3_format_typeDefault;
	      var zcomma = zfill && comma;
	      return function(value) {
	        var fullSuffix = suffix;
	        if (integer && value % 1) return "";
	        var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, "-") : sign === "-" ? "" : sign;
	        if (scale < 0) {
	          var unit = d3.formatPrefix(value, precision);
	          value = unit.scale(value);
	          fullSuffix = unit.symbol + suffix;
	        } else {
	          value *= scale;
	        }
	        value = type(value, precision);
	        var i = value.lastIndexOf("."), before, after;
	        if (i < 0) {
	          var j = exponent ? value.lastIndexOf("e") : -1;
	          if (j < 0) before = value, after = ""; else before = value.substring(0, j), after = value.substring(j);
	        } else {
	          before = value.substring(0, i);
	          after = locale_decimal + value.substring(i + 1);
	        }
	        if (!zfill && comma) before = formatGroup(before, Infinity);
	        var length = prefix.length + before.length + after.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : "";
	        if (zcomma) before = formatGroup(padding + before, padding.length ? width - after.length : Infinity);
	        negative += prefix;
	        value = before + after;
	        return (align === "<" ? negative + value + padding : align === ">" ? padding + negative + value : align === "^" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + fullSuffix;
	      };
	    };
	  }
	  var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?([$#])?(0)?(\d+)?(,)?(\.-?\d+)?([a-z%])?/i;
	  var d3_format_types = d3.map({
	    b: function(x) {
	      return x.toString(2);
	    },
	    c: function(x) {
	      return String.fromCharCode(x);
	    },
	    o: function(x) {
	      return x.toString(8);
	    },
	    x: function(x) {
	      return x.toString(16);
	    },
	    X: function(x) {
	      return x.toString(16).toUpperCase();
	    },
	    g: function(x, p) {
	      return x.toPrecision(p);
	    },
	    e: function(x, p) {
	      return x.toExponential(p);
	    },
	    f: function(x, p) {
	      return x.toFixed(p);
	    },
	    r: function(x, p) {
	      return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p))));
	    }
	  });
	  function d3_format_typeDefault(x) {
	    return x + "";
	  }
	  var d3_time = d3.time = {}, d3_date = Date;
	  function d3_date_utc() {
	    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
	  }
	  d3_date_utc.prototype = {
	    getDate: function() {
	      return this._.getUTCDate();
	    },
	    getDay: function() {
	      return this._.getUTCDay();
	    },
	    getFullYear: function() {
	      return this._.getUTCFullYear();
	    },
	    getHours: function() {
	      return this._.getUTCHours();
	    },
	    getMilliseconds: function() {
	      return this._.getUTCMilliseconds();
	    },
	    getMinutes: function() {
	      return this._.getUTCMinutes();
	    },
	    getMonth: function() {
	      return this._.getUTCMonth();
	    },
	    getSeconds: function() {
	      return this._.getUTCSeconds();
	    },
	    getTime: function() {
	      return this._.getTime();
	    },
	    getTimezoneOffset: function() {
	      return 0;
	    },
	    valueOf: function() {
	      return this._.valueOf();
	    },
	    setDate: function() {
	      d3_time_prototype.setUTCDate.apply(this._, arguments);
	    },
	    setDay: function() {
	      d3_time_prototype.setUTCDay.apply(this._, arguments);
	    },
	    setFullYear: function() {
	      d3_time_prototype.setUTCFullYear.apply(this._, arguments);
	    },
	    setHours: function() {
	      d3_time_prototype.setUTCHours.apply(this._, arguments);
	    },
	    setMilliseconds: function() {
	      d3_time_prototype.setUTCMilliseconds.apply(this._, arguments);
	    },
	    setMinutes: function() {
	      d3_time_prototype.setUTCMinutes.apply(this._, arguments);
	    },
	    setMonth: function() {
	      d3_time_prototype.setUTCMonth.apply(this._, arguments);
	    },
	    setSeconds: function() {
	      d3_time_prototype.setUTCSeconds.apply(this._, arguments);
	    },
	    setTime: function() {
	      d3_time_prototype.setTime.apply(this._, arguments);
	    }
	  };
	  var d3_time_prototype = Date.prototype;
	  function d3_time_interval(local, step, number) {
	    function round(date) {
	      var d0 = local(date), d1 = offset(d0, 1);
	      return date - d0 < d1 - date ? d0 : d1;
	    }
	    function ceil(date) {
	      step(date = local(new d3_date(date - 1)), 1);
	      return date;
	    }
	    function offset(date, k) {
	      step(date = new d3_date(+date), k);
	      return date;
	    }
	    function range(t0, t1, dt) {
	      var time = ceil(t0), times = [];
	      if (dt > 1) {
	        while (time < t1) {
	          if (!(number(time) % dt)) times.push(new Date(+time));
	          step(time, 1);
	        }
	      } else {
	        while (time < t1) times.push(new Date(+time)), step(time, 1);
	      }
	      return times;
	    }
	    function range_utc(t0, t1, dt) {
	      try {
	        d3_date = d3_date_utc;
	        var utc = new d3_date_utc();
	        utc._ = t0;
	        return range(utc, t1, dt);
	      } finally {
	        d3_date = Date;
	      }
	    }
	    local.floor = local;
	    local.round = round;
	    local.ceil = ceil;
	    local.offset = offset;
	    local.range = range;
	    var utc = local.utc = d3_time_interval_utc(local);
	    utc.floor = utc;
	    utc.round = d3_time_interval_utc(round);
	    utc.ceil = d3_time_interval_utc(ceil);
	    utc.offset = d3_time_interval_utc(offset);
	    utc.range = range_utc;
	    return local;
	  }
	  function d3_time_interval_utc(method) {
	    return function(date, k) {
	      try {
	        d3_date = d3_date_utc;
	        var utc = new d3_date_utc();
	        utc._ = date;
	        return method(utc, k)._;
	      } finally {
	        d3_date = Date;
	      }
	    };
	  }
	  d3_time.year = d3_time_interval(function(date) {
	    date = d3_time.day(date);
	    date.setMonth(0, 1);
	    return date;
	  }, function(date, offset) {
	    date.setFullYear(date.getFullYear() + offset);
	  }, function(date) {
	    return date.getFullYear();
	  });
	  d3_time.years = d3_time.year.range;
	  d3_time.years.utc = d3_time.year.utc.range;
	  d3_time.day = d3_time_interval(function(date) {
	    var day = new d3_date(2e3, 0);
	    day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
	    return day;
	  }, function(date, offset) {
	    date.setDate(date.getDate() + offset);
	  }, function(date) {
	    return date.getDate() - 1;
	  });
	  d3_time.days = d3_time.day.range;
	  d3_time.days.utc = d3_time.day.utc.range;
	  d3_time.dayOfYear = function(date) {
	    var year = d3_time.year(date);
	    return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);
	  };
	  [ "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday" ].forEach(function(day, i) {
	    i = 7 - i;
	    var interval = d3_time[day] = d3_time_interval(function(date) {
	      (date = d3_time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);
	      return date;
	    }, function(date, offset) {
	      date.setDate(date.getDate() + Math.floor(offset) * 7);
	    }, function(date) {
	      var day = d3_time.year(date).getDay();
	      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);
	    });
	    d3_time[day + "s"] = interval.range;
	    d3_time[day + "s"].utc = interval.utc.range;
	    d3_time[day + "OfYear"] = function(date) {
	      var day = d3_time.year(date).getDay();
	      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7);
	    };
	  });
	  d3_time.week = d3_time.sunday;
	  d3_time.weeks = d3_time.sunday.range;
	  d3_time.weeks.utc = d3_time.sunday.utc.range;
	  d3_time.weekOfYear = d3_time.sundayOfYear;
	  function d3_locale_timeFormat(locale) {
	    var locale_dateTime = locale.dateTime, locale_date = locale.date, locale_time = locale.time, locale_periods = locale.periods, locale_days = locale.days, locale_shortDays = locale.shortDays, locale_months = locale.months, locale_shortMonths = locale.shortMonths;
	    function d3_time_format(template) {
	      var n = template.length;
	      function format(date) {
	        var string = [], i = -1, j = 0, c, p, f;
	        while (++i < n) {
	          if (template.charCodeAt(i) === 37) {
	            string.push(template.slice(j, i));
	            if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i);
	            if (f = d3_time_formats[c]) c = f(date, p == null ? c === "e" ? " " : "0" : p);
	            string.push(c);
	            j = i + 1;
	          }
	        }
	        string.push(template.slice(j, i));
	        return string.join("");
	      }
	      format.parse = function(string) {
	        var d = {
	          y: 1900,
	          m: 0,
	          d: 1,
	          H: 0,
	          M: 0,
	          S: 0,
	          L: 0,
	          Z: null
	        }, i = d3_time_parse(d, template, string, 0);
	        if (i != string.length) return null;
	        if ("p" in d) d.H = d.H % 12 + d.p * 12;
	        var localZ = d.Z != null && d3_date !== d3_date_utc, date = new (localZ ? d3_date_utc : d3_date)();
	        if ("j" in d) date.setFullYear(d.y, 0, d.j); else if ("W" in d || "U" in d) {
	          if (!("w" in d)) d.w = "W" in d ? 1 : 0;
	          date.setFullYear(d.y, 0, 1);
	          date.setFullYear(d.y, 0, "W" in d ? (d.w + 6) % 7 + d.W * 7 - (date.getDay() + 5) % 7 : d.w + d.U * 7 - (date.getDay() + 6) % 7);
	        } else date.setFullYear(d.y, d.m, d.d);
	        date.setHours(d.H + (d.Z / 100 | 0), d.M + d.Z % 100, d.S, d.L);
	        return localZ ? date._ : date;
	      };
	      format.toString = function() {
	        return template;
	      };
	      return format;
	    }
	    function d3_time_parse(date, template, string, j) {
	      var c, p, t, i = 0, n = template.length, m = string.length;
	      while (i < n) {
	        if (j >= m) return -1;
	        c = template.charCodeAt(i++);
	        if (c === 37) {
	          t = template.charAt(i++);
	          p = d3_time_parsers[t in d3_time_formatPads ? template.charAt(i++) : t];
	          if (!p || (j = p(date, string, j)) < 0) return -1;
	        } else if (c != string.charCodeAt(j++)) {
	          return -1;
	        }
	      }
	      return j;
	    }
	    d3_time_format.utc = function(template) {
	      var local = d3_time_format(template);
	      function format(date) {
	        try {
	          d3_date = d3_date_utc;
	          var utc = new d3_date();
	          utc._ = date;
	          return local(utc);
	        } finally {
	          d3_date = Date;
	        }
	      }
	      format.parse = function(string) {
	        try {
	          d3_date = d3_date_utc;
	          var date = local.parse(string);
	          return date && date._;
	        } finally {
	          d3_date = Date;
	        }
	      };
	      format.toString = local.toString;
	      return format;
	    };
	    d3_time_format.multi = d3_time_format.utc.multi = d3_time_formatMulti;
	    var d3_time_periodLookup = d3.map(), d3_time_dayRe = d3_time_formatRe(locale_days), d3_time_dayLookup = d3_time_formatLookup(locale_days), d3_time_dayAbbrevRe = d3_time_formatRe(locale_shortDays), d3_time_dayAbbrevLookup = d3_time_formatLookup(locale_shortDays), d3_time_monthRe = d3_time_formatRe(locale_months), d3_time_monthLookup = d3_time_formatLookup(locale_months), d3_time_monthAbbrevRe = d3_time_formatRe(locale_shortMonths), d3_time_monthAbbrevLookup = d3_time_formatLookup(locale_shortMonths);
	    locale_periods.forEach(function(p, i) {
	      d3_time_periodLookup.set(p.toLowerCase(), i);
	    });
	    var d3_time_formats = {
	      a: function(d) {
	        return locale_shortDays[d.getDay()];
	      },
	      A: function(d) {
	        return locale_days[d.getDay()];
	      },
	      b: function(d) {
	        return locale_shortMonths[d.getMonth()];
	      },
	      B: function(d) {
	        return locale_months[d.getMonth()];
	      },
	      c: d3_time_format(locale_dateTime),
	      d: function(d, p) {
	        return d3_time_formatPad(d.getDate(), p, 2);
	      },
	      e: function(d, p) {
	        return d3_time_formatPad(d.getDate(), p, 2);
	      },
	      H: function(d, p) {
	        return d3_time_formatPad(d.getHours(), p, 2);
	      },
	      I: function(d, p) {
	        return d3_time_formatPad(d.getHours() % 12 || 12, p, 2);
	      },
	      j: function(d, p) {
	        return d3_time_formatPad(1 + d3_time.dayOfYear(d), p, 3);
	      },
	      L: function(d, p) {
	        return d3_time_formatPad(d.getMilliseconds(), p, 3);
	      },
	      m: function(d, p) {
	        return d3_time_formatPad(d.getMonth() + 1, p, 2);
	      },
	      M: function(d, p) {
	        return d3_time_formatPad(d.getMinutes(), p, 2);
	      },
	      p: function(d) {
	        return locale_periods[+(d.getHours() >= 12)];
	      },
	      S: function(d, p) {
	        return d3_time_formatPad(d.getSeconds(), p, 2);
	      },
	      U: function(d, p) {
	        return d3_time_formatPad(d3_time.sundayOfYear(d), p, 2);
	      },
	      w: function(d) {
	        return d.getDay();
	      },
	      W: function(d, p) {
	        return d3_time_formatPad(d3_time.mondayOfYear(d), p, 2);
	      },
	      x: d3_time_format(locale_date),
	      X: d3_time_format(locale_time),
	      y: function(d, p) {
	        return d3_time_formatPad(d.getFullYear() % 100, p, 2);
	      },
	      Y: function(d, p) {
	        return d3_time_formatPad(d.getFullYear() % 1e4, p, 4);
	      },
	      Z: d3_time_zone,
	      "%": function() {
	        return "%";
	      }
	    };
	    var d3_time_parsers = {
	      a: d3_time_parseWeekdayAbbrev,
	      A: d3_time_parseWeekday,
	      b: d3_time_parseMonthAbbrev,
	      B: d3_time_parseMonth,
	      c: d3_time_parseLocaleFull,
	      d: d3_time_parseDay,
	      e: d3_time_parseDay,
	      H: d3_time_parseHour24,
	      I: d3_time_parseHour24,
	      j: d3_time_parseDayOfYear,
	      L: d3_time_parseMilliseconds,
	      m: d3_time_parseMonthNumber,
	      M: d3_time_parseMinutes,
	      p: d3_time_parseAmPm,
	      S: d3_time_parseSeconds,
	      U: d3_time_parseWeekNumberSunday,
	      w: d3_time_parseWeekdayNumber,
	      W: d3_time_parseWeekNumberMonday,
	      x: d3_time_parseLocaleDate,
	      X: d3_time_parseLocaleTime,
	      y: d3_time_parseYear,
	      Y: d3_time_parseFullYear,
	      Z: d3_time_parseZone,
	      "%": d3_time_parseLiteralPercent
	    };
	    function d3_time_parseWeekdayAbbrev(date, string, i) {
	      d3_time_dayAbbrevRe.lastIndex = 0;
	      var n = d3_time_dayAbbrevRe.exec(string.slice(i));
	      return n ? (date.w = d3_time_dayAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
	    }
	    function d3_time_parseWeekday(date, string, i) {
	      d3_time_dayRe.lastIndex = 0;
	      var n = d3_time_dayRe.exec(string.slice(i));
	      return n ? (date.w = d3_time_dayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
	    }
	    function d3_time_parseMonthAbbrev(date, string, i) {
	      d3_time_monthAbbrevRe.lastIndex = 0;
	      var n = d3_time_monthAbbrevRe.exec(string.slice(i));
	      return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
	    }
	    function d3_time_parseMonth(date, string, i) {
	      d3_time_monthRe.lastIndex = 0;
	      var n = d3_time_monthRe.exec(string.slice(i));
	      return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
	    }
	    function d3_time_parseLocaleFull(date, string, i) {
	      return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
	    }
	    function d3_time_parseLocaleDate(date, string, i) {
	      return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
	    }
	    function d3_time_parseLocaleTime(date, string, i) {
	      return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
	    }
	    function d3_time_parseAmPm(date, string, i) {
	      var n = d3_time_periodLookup.get(string.slice(i, i += 2).toLowerCase());
	      return n == null ? -1 : (date.p = n, i);
	    }
	    return d3_time_format;
	  }
	  var d3_time_formatPads = {
	    "-": "",
	    _: " ",
	    "0": "0"
	  }, d3_time_numberRe = /^\s*\d+/, d3_time_percentRe = /^%/;
	  function d3_time_formatPad(value, fill, width) {
	    var sign = value < 0 ? "-" : "", string = (sign ? -value : value) + "", length = string.length;
	    return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
	  }
	  function d3_time_formatRe(names) {
	    return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");
	  }
	  function d3_time_formatLookup(names) {
	    var map = new d3_Map(), i = -1, n = names.length;
	    while (++i < n) map.set(names[i].toLowerCase(), i);
	    return map;
	  }
	  function d3_time_parseWeekdayNumber(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 1));
	    return n ? (date.w = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseWeekNumberSunday(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i));
	    return n ? (date.U = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseWeekNumberMonday(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i));
	    return n ? (date.W = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseFullYear(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 4));
	    return n ? (date.y = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseYear(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
	    return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1;
	  }
	  function d3_time_parseZone(date, string, i) {
	    return /^[+-]\d{4}$/.test(string = string.slice(i, i + 5)) ? (date.Z = -string, 
	    i + 5) : -1;
	  }
	  function d3_time_expandYear(d) {
	    return d + (d > 68 ? 1900 : 2e3);
	  }
	  function d3_time_parseMonthNumber(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
	    return n ? (date.m = n[0] - 1, i + n[0].length) : -1;
	  }
	  function d3_time_parseDay(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
	    return n ? (date.d = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseDayOfYear(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
	    return n ? (date.j = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseHour24(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
	    return n ? (date.H = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseMinutes(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
	    return n ? (date.M = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseSeconds(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
	    return n ? (date.S = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_parseMilliseconds(date, string, i) {
	    d3_time_numberRe.lastIndex = 0;
	    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
	    return n ? (date.L = +n[0], i + n[0].length) : -1;
	  }
	  function d3_time_zone(d) {
	    var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = abs(z) / 60 | 0, zm = abs(z) % 60;
	    return zs + d3_time_formatPad(zh, "0", 2) + d3_time_formatPad(zm, "0", 2);
	  }
	  function d3_time_parseLiteralPercent(date, string, i) {
	    d3_time_percentRe.lastIndex = 0;
	    var n = d3_time_percentRe.exec(string.slice(i, i + 1));
	    return n ? i + n[0].length : -1;
	  }
	  function d3_time_formatMulti(formats) {
	    var n = formats.length, i = -1;
	    while (++i < n) formats[i][0] = this(formats[i][0]);
	    return function(date) {
	      var i = 0, f = formats[i];
	      while (!f[1](date)) f = formats[++i];
	      return f[0](date);
	    };
	  }
	  d3.locale = function(locale) {
	    return {
	      numberFormat: d3_locale_numberFormat(locale),
	      timeFormat: d3_locale_timeFormat(locale)
	    };
	  };
	  var d3_locale_enUS = d3.locale({
	    decimal: ".",
	    thousands: ",",
	    grouping: [ 3 ],
	    currency: [ "$", "" ],
	    dateTime: "%a %b %e %X %Y",
	    date: "%m/%d/%Y",
	    time: "%H:%M:%S",
	    periods: [ "AM", "PM" ],
	    days: [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ],
	    shortDays: [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ],
	    months: [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ],
	    shortMonths: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]
	  });
	  d3.format = d3_locale_enUS.numberFormat;
	  d3.geo = {};
	  function d3_adder() {}
	  d3_adder.prototype = {
	    s: 0,
	    t: 0,
	    add: function(y) {
	      d3_adderSum(y, this.t, d3_adderTemp);
	      d3_adderSum(d3_adderTemp.s, this.s, this);
	      if (this.s) this.t += d3_adderTemp.t; else this.s = d3_adderTemp.t;
	    },
	    reset: function() {
	      this.s = this.t = 0;
	    },
	    valueOf: function() {
	      return this.s;
	    }
	  };
	  var d3_adderTemp = new d3_adder();
	  function d3_adderSum(a, b, o) {
	    var x = o.s = a + b, bv = x - a, av = x - bv;
	    o.t = a - av + (b - bv);
	  }
	  d3.geo.stream = function(object, listener) {
	    if (object && d3_geo_streamObjectType.hasOwnProperty(object.type)) {
	      d3_geo_streamObjectType[object.type](object, listener);
	    } else {
	      d3_geo_streamGeometry(object, listener);
	    }
	  };
	  function d3_geo_streamGeometry(geometry, listener) {
	    if (geometry && d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) {
	      d3_geo_streamGeometryType[geometry.type](geometry, listener);
	    }
	  }
	  var d3_geo_streamObjectType = {
	    Feature: function(feature, listener) {
	      d3_geo_streamGeometry(feature.geometry, listener);
	    },
	    FeatureCollection: function(object, listener) {
	      var features = object.features, i = -1, n = features.length;
	      while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener);
	    }
	  };
	  var d3_geo_streamGeometryType = {
	    Sphere: function(object, listener) {
	      listener.sphere();
	    },
	    Point: function(object, listener) {
	      object = object.coordinates;
	      listener.point(object[0], object[1], object[2]);
	    },
	    MultiPoint: function(object, listener) {
	      var coordinates = object.coordinates, i = -1, n = coordinates.length;
	      while (++i < n) object = coordinates[i], listener.point(object[0], object[1], object[2]);
	    },
	    LineString: function(object, listener) {
	      d3_geo_streamLine(object.coordinates, listener, 0);
	    },
	    MultiLineString: function(object, listener) {
	      var coordinates = object.coordinates, i = -1, n = coordinates.length;
	      while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0);
	    },
	    Polygon: function(object, listener) {
	      d3_geo_streamPolygon(object.coordinates, listener);
	    },
	    MultiPolygon: function(object, listener) {
	      var coordinates = object.coordinates, i = -1, n = coordinates.length;
	      while (++i < n) d3_geo_streamPolygon(coordinates[i], listener);
	    },
	    GeometryCollection: function(object, listener) {
	      var geometries = object.geometries, i = -1, n = geometries.length;
	      while (++i < n) d3_geo_streamGeometry(geometries[i], listener);
	    }
	  };
	  function d3_geo_streamLine(coordinates, listener, closed) {
	    var i = -1, n = coordinates.length - closed, coordinate;
	    listener.lineStart();
	    while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1], coordinate[2]);
	    listener.lineEnd();
	  }
	  function d3_geo_streamPolygon(coordinates, listener) {
	    var i = -1, n = coordinates.length;
	    listener.polygonStart();
	    while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1);
	    listener.polygonEnd();
	  }
	  d3.geo.area = function(object) {
	    d3_geo_areaSum = 0;
	    d3.geo.stream(object, d3_geo_area);
	    return d3_geo_areaSum;
	  };
	  var d3_geo_areaSum, d3_geo_areaRingSum = new d3_adder();
	  var d3_geo_area = {
	    sphere: function() {
	      d3_geo_areaSum += 4 * π;
	    },
	    point: d3_noop,
	    lineStart: d3_noop,
	    lineEnd: d3_noop,
	    polygonStart: function() {
	      d3_geo_areaRingSum.reset();
	      d3_geo_area.lineStart = d3_geo_areaRingStart;
	    },
	    polygonEnd: function() {
	      var area = 2 * d3_geo_areaRingSum;
	      d3_geo_areaSum += area < 0 ? 4 * π + area : area;
	      d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop;
	    }
	  };
	  function d3_geo_areaRingStart() {
	    var λ00, φ00, λ0, cosφ0, sinφ0;
	    d3_geo_area.point = function(λ, φ) {
	      d3_geo_area.point = nextPoint;
	      λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4), 
	      sinφ0 = Math.sin(φ);
	    };
	    function nextPoint(λ, φ) {
	      λ *= d3_radians;
	      φ = φ * d3_radians / 2 + π / 4;
	      var dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u = cosφ0 * cosφ + k * Math.cos(adλ), v = k * sdλ * Math.sin(adλ);
	      d3_geo_areaRingSum.add(Math.atan2(v, u));
	      λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;
	    }
	    d3_geo_area.lineEnd = function() {
	      nextPoint(λ00, φ00);
	    };
	  }
	  function d3_geo_cartesian(spherical) {
	    var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ);
	    return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ];
	  }
	  function d3_geo_cartesianDot(a, b) {
	    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
	  }
	  function d3_geo_cartesianCross(a, b) {
	    return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ];
	  }
	  function d3_geo_cartesianAdd(a, b) {
	    a[0] += b[0];
	    a[1] += b[1];
	    a[2] += b[2];
	  }
	  function d3_geo_cartesianScale(vector, k) {
	    return [ vector[0] * k, vector[1] * k, vector[2] * k ];
	  }
	  function d3_geo_cartesianNormalize(d) {
	    var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
	    d[0] /= l;
	    d[1] /= l;
	    d[2] /= l;
	  }
	  function d3_geo_spherical(cartesian) {
	    return [ Math.atan2(cartesian[1], cartesian[0]), d3_asin(cartesian[2]) ];
	  }
	  function d3_geo_sphericalEqual(a, b) {
	    return abs(a[0] - b[0]) < ε && abs(a[1] - b[1]) < ε;
	  }
	  d3.geo.bounds = function() {
	    var λ0, φ0, λ1, φ1, λ_, λ__, φ__, p0, dλSum, ranges, range;
	    var bound = {
	      point: point,
	      lineStart: lineStart,
	      lineEnd: lineEnd,
	      polygonStart: function() {
	        bound.point = ringPoint;
	        bound.lineStart = ringStart;
	        bound.lineEnd = ringEnd;
	        dλSum = 0;
	        d3_geo_area.polygonStart();
	      },
	      polygonEnd: function() {
	        d3_geo_area.polygonEnd();
	        bound.point = point;
	        bound.lineStart = lineStart;
	        bound.lineEnd = lineEnd;
	        if (d3_geo_areaRingSum < 0) λ0 = -(λ1 = 180), φ0 = -(φ1 = 90); else if (dλSum > ε) φ1 = 90; else if (dλSum < -ε) φ0 = -90;
	        range[0] = λ0, range[1] = λ1;
	      }
	    };
	    function point(λ, φ) {
	      ranges.push(range = [ λ0 = λ, λ1 = λ ]);
	      if (φ < φ0) φ0 = φ;
	      if (φ > φ1) φ1 = φ;
	    }
	    function linePoint(λ, φ) {
	      var p = d3_geo_cartesian([ λ * d3_radians, φ * d3_radians ]);
	      if (p0) {
	        var normal = d3_geo_cartesianCross(p0, p), equatorial = [ normal[1], -normal[0], 0 ], inflection = d3_geo_cartesianCross(equatorial, normal);
	        d3_geo_cartesianNormalize(inflection);
	        inflection = d3_geo_spherical(inflection);
	        var dλ = λ - λ_, s = dλ > 0 ? 1 : -1, λi = inflection[0] * d3_degrees * s, antimeridian = abs(dλ) > 180;
	        if (antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
	          var φi = inflection[1] * d3_degrees;
	          if (φi > φ1) φ1 = φi;
	        } else if (λi = (λi + 360) % 360 - 180, antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
	          var φi = -inflection[1] * d3_degrees;
	          if (φi < φ0) φ0 = φi;
	        } else {
	          if (φ < φ0) φ0 = φ;
	          if (φ > φ1) φ1 = φ;
	        }
	        if (antimeridian) {
	          if (λ < λ_) {
	            if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
	          } else {
	            if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
	          }
	        } else {
	          if (λ1 >= λ0) {
	            if (λ < λ0) λ0 = λ;
	            if (λ > λ1) λ1 = λ;
	          } else {
	            if (λ > λ_) {
	              if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
	            } else {
	              if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
	            }
	          }
	        }
	      } else {
	        point(λ, φ);
	      }
	      p0 = p, λ_ = λ;
	    }
	    function lineStart() {
	      bound.point = linePoint;
	    }
	    function lineEnd() {
	      range[0] = λ0, range[1] = λ1;
	      bound.point = point;
	      p0 = null;
	    }
	    function ringPoint(λ, φ) {
	      if (p0) {
	        var dλ = λ - λ_;
	        dλSum += abs(dλ) > 180 ? dλ + (dλ > 0 ? 360 : -360) : dλ;
	      } else λ__ = λ, φ__ = φ;
	      d3_geo_area.point(λ, φ);
	      linePoint(λ, φ);
	    }
	    function ringStart() {
	      d3_geo_area.lineStart();
	    }
	    function ringEnd() {
	      ringPoint(λ__, φ__);
	      d3_geo_area.lineEnd();
	      if (abs(dλSum) > ε) λ0 = -(λ1 = 180);
	      range[0] = λ0, range[1] = λ1;
	      p0 = null;
	    }
	    function angle(λ0, λ1) {
	      return (λ1 -= λ0) < 0 ? λ1 + 360 : λ1;
	    }
	    function compareRanges(a, b) {
	      return a[0] - b[0];
	    }
	    function withinRange(x, range) {
	      return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
	    }
	    return function(feature) {
	      φ1 = λ1 = -(λ0 = φ0 = Infinity);
	      ranges = [];
	      d3.geo.stream(feature, bound);
	      var n = ranges.length;
	      if (n) {
	        ranges.sort(compareRanges);
	        for (var i = 1, a = ranges[0], b, merged = [ a ]; i < n; ++i) {
	          b = ranges[i];
	          if (withinRange(b[0], a) || withinRange(b[1], a)) {
	            if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
	            if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
	          } else {
	            merged.push(a = b);
	          }
	        }
	        var best = -Infinity, dλ;
	        for (var n = merged.length - 1, i = 0, a = merged[n], b; i <= n; a = b, ++i) {
	          b = merged[i];
	          if ((dλ = angle(a[1], b[0])) > best) best = dλ, λ0 = b[0], λ1 = a[1];
	        }
	      }
	      ranges = range = null;
	      return λ0 === Infinity || φ0 === Infinity ? [ [ NaN, NaN ], [ NaN, NaN ] ] : [ [ λ0, φ0 ], [ λ1, φ1 ] ];
	    };
	  }();
	  d3.geo.centroid = function(object) {
	    d3_geo_centroidW0 = d3_geo_centroidW1 = d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
	    d3.geo.stream(object, d3_geo_centroid);
	    var x = d3_geo_centroidX2, y = d3_geo_centroidY2, z = d3_geo_centroidZ2, m = x * x + y * y + z * z;
	    if (m < ε2) {
	      x = d3_geo_centroidX1, y = d3_geo_centroidY1, z = d3_geo_centroidZ1;
	      if (d3_geo_centroidW1 < ε) x = d3_geo_centroidX0, y = d3_geo_centroidY0, z = d3_geo_centroidZ0;
	      m = x * x + y * y + z * z;
	      if (m < ε2) return [ NaN, NaN ];
	    }
	    return [ Math.atan2(y, x) * d3_degrees, d3_asin(z / Math.sqrt(m)) * d3_degrees ];
	  };
	  var d3_geo_centroidW0, d3_geo_centroidW1, d3_geo_centroidX0, d3_geo_centroidY0, d3_geo_centroidZ0, d3_geo_centroidX1, d3_geo_centroidY1, d3_geo_centroidZ1, d3_geo_centroidX2, d3_geo_centroidY2, d3_geo_centroidZ2;
	  var d3_geo_centroid = {
	    sphere: d3_noop,
	    point: d3_geo_centroidPoint,
	    lineStart: d3_geo_centroidLineStart,
	    lineEnd: d3_geo_centroidLineEnd,
	    polygonStart: function() {
	      d3_geo_centroid.lineStart = d3_geo_centroidRingStart;
	    },
	    polygonEnd: function() {
	      d3_geo_centroid.lineStart = d3_geo_centroidLineStart;
	    }
	  };
	  function d3_geo_centroidPoint(λ, φ) {
	    λ *= d3_radians;
	    var cosφ = Math.cos(φ *= d3_radians);
	    d3_geo_centroidPointXYZ(cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ));
	  }
	  function d3_geo_centroidPointXYZ(x, y, z) {
	    ++d3_geo_centroidW0;
	    d3_geo_centroidX0 += (x - d3_geo_centroidX0) / d3_geo_centroidW0;
	    d3_geo_centroidY0 += (y - d3_geo_centroidY0) / d3_geo_centroidW0;
	    d3_geo_centroidZ0 += (z - d3_geo_centroidZ0) / d3_geo_centroidW0;
	  }
	  function d3_geo_centroidLineStart() {
	    var x0, y0, z0;
	    d3_geo_centroid.point = function(λ, φ) {
	      λ *= d3_radians;
	      var cosφ = Math.cos(φ *= d3_radians);
	      x0 = cosφ * Math.cos(λ);
	      y0 = cosφ * Math.sin(λ);
	      z0 = Math.sin(φ);
	      d3_geo_centroid.point = nextPoint;
	      d3_geo_centroidPointXYZ(x0, y0, z0);
	    };
	    function nextPoint(λ, φ) {
	      λ *= d3_radians;
	      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
	      d3_geo_centroidW1 += w;
	      d3_geo_centroidX1 += w * (x0 + (x0 = x));
	      d3_geo_centroidY1 += w * (y0 + (y0 = y));
	      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
	      d3_geo_centroidPointXYZ(x0, y0, z0);
	    }
	  }
	  function d3_geo_centroidLineEnd() {
	    d3_geo_centroid.point = d3_geo_centroidPoint;
	  }
	  function d3_geo_centroidRingStart() {
	    var λ00, φ00, x0, y0, z0;
	    d3_geo_centroid.point = function(λ, φ) {
	      λ00 = λ, φ00 = φ;
	      d3_geo_centroid.point = nextPoint;
	      λ *= d3_radians;
	      var cosφ = Math.cos(φ *= d3_radians);
	      x0 = cosφ * Math.cos(λ);
	      y0 = cosφ * Math.sin(λ);
	      z0 = Math.sin(φ);
	      d3_geo_centroidPointXYZ(x0, y0, z0);
	    };
	    d3_geo_centroid.lineEnd = function() {
	      nextPoint(λ00, φ00);
	      d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd;
	      d3_geo_centroid.point = d3_geo_centroidPoint;
	    };
	    function nextPoint(λ, φ) {
	      λ *= d3_radians;
	      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), cx = y0 * z - z0 * y, cy = z0 * x - x0 * z, cz = x0 * y - y0 * x, m = Math.sqrt(cx * cx + cy * cy + cz * cz), u = x0 * x + y0 * y + z0 * z, v = m && -d3_acos(u) / m, w = Math.atan2(m, u);
	      d3_geo_centroidX2 += v * cx;
	      d3_geo_centroidY2 += v * cy;
	      d3_geo_centroidZ2 += v * cz;
	      d3_geo_centroidW1 += w;
	      d3_geo_centroidX1 += w * (x0 + (x0 = x));
	      d3_geo_centroidY1 += w * (y0 + (y0 = y));
	      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
	      d3_geo_centroidPointXYZ(x0, y0, z0);
	    }
	  }
	  function d3_geo_compose(a, b) {
	    function compose(x, y) {
	      return x = a(x, y), b(x[0], x[1]);
	    }
	    if (a.invert && b.invert) compose.invert = function(x, y) {
	      return x = b.invert(x, y), x && a.invert(x[0], x[1]);
	    };
	    return compose;
	  }
	  function d3_true() {
	    return true;
	  }
	  function d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener) {
	    var subject = [], clip = [];
	    segments.forEach(function(segment) {
	      if ((n = segment.length - 1) <= 0) return;
	      var n, p0 = segment[0], p1 = segment[n];
	      if (d3_geo_sphericalEqual(p0, p1)) {
	        listener.lineStart();
	        for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]);
	        listener.lineEnd();
	        return;
	      }
	      var a = new d3_geo_clipPolygonIntersection(p0, segment, null, true), b = new d3_geo_clipPolygonIntersection(p0, null, a, false);
	      a.o = b;
	      subject.push(a);
	      clip.push(b);
	      a = new d3_geo_clipPolygonIntersection(p1, segment, null, false);
	      b = new d3_geo_clipPolygonIntersection(p1, null, a, true);
	      a.o = b;
	      subject.push(a);
	      clip.push(b);
	    });
	    clip.sort(compare);
	    d3_geo_clipPolygonLinkCircular(subject);
	    d3_geo_clipPolygonLinkCircular(clip);
	    if (!subject.length) return;
	    for (var i = 0, entry = clipStartInside, n = clip.length; i < n; ++i) {
	      clip[i].e = entry = !entry;
	    }
	    var start = subject[0], points, point;
	    while (1) {
	      var current = start, isSubject = true;
	      while (current.v) if ((current = current.n) === start) return;
	      points = current.z;
	      listener.lineStart();
	      do {
	        current.v = current.o.v = true;
	        if (current.e) {
	          if (isSubject) {
	            for (var i = 0, n = points.length; i < n; ++i) listener.point((point = points[i])[0], point[1]);
	          } else {
	            interpolate(current.x, current.n.x, 1, listener);
	          }
	          current = current.n;
	        } else {
	          if (isSubject) {
	            points = current.p.z;
	            for (var i = points.length - 1; i >= 0; --i) listener.point((point = points[i])[0], point[1]);
	          } else {
	            interpolate(current.x, current.p.x, -1, listener);
	          }
	          current = current.p;
	        }
	        current = current.o;
	        points = current.z;
	        isSubject = !isSubject;
	      } while (!current.v);
	      listener.lineEnd();
	    }
	  }
	  function d3_geo_clipPolygonLinkCircular(array) {
	    if (!(n = array.length)) return;
	    var n, i = 0, a = array[0], b;
	    while (++i < n) {
	      a.n = b = array[i];
	      b.p = a;
	      a = b;
	    }
	    a.n = b = array[0];
	    b.p = a;
	  }
	  function d3_geo_clipPolygonIntersection(point, points, other, entry) {
	    this.x = point;
	    this.z = points;
	    this.o = other;
	    this.e = entry;
	    this.v = false;
	    this.n = this.p = null;
	  }
	  function d3_geo_clip(pointVisible, clipLine, interpolate, clipStart) {
	    return function(rotate, listener) {
	      var line = clipLine(listener), rotatedClipStart = rotate.invert(clipStart[0], clipStart[1]);
	      var clip = {
	        point: point,
	        lineStart: lineStart,
	        lineEnd: lineEnd,
	        polygonStart: function() {
	          clip.point = pointRing;
	          clip.lineStart = ringStart;
	          clip.lineEnd = ringEnd;
	          segments = [];
	          polygon = [];
	        },
	        polygonEnd: function() {
	          clip.point = point;
	          clip.lineStart = lineStart;
	          clip.lineEnd = lineEnd;
	          segments = d3.merge(segments);
	          var clipStartInside = d3_geo_pointInPolygon(rotatedClipStart, polygon);
	          if (segments.length) {
	            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
	            d3_geo_clipPolygon(segments, d3_geo_clipSort, clipStartInside, interpolate, listener);
	          } else if (clipStartInside) {
	            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
	            listener.lineStart();
	            interpolate(null, null, 1, listener);
	            listener.lineEnd();
	          }
	          if (polygonStarted) listener.polygonEnd(), polygonStarted = false;
	          segments = polygon = null;
	        },
	        sphere: function() {
	          listener.polygonStart();
	          listener.lineStart();
	          interpolate(null, null, 1, listener);
	          listener.lineEnd();
	          listener.polygonEnd();
	        }
	      };
	      function point(λ, φ) {
	        var point = rotate(λ, φ);
	        if (pointVisible(λ = point[0], φ = point[1])) listener.point(λ, φ);
	      }
	      function pointLine(λ, φ) {
	        var point = rotate(λ, φ);
	        line.point(point[0], point[1]);
	      }
	      function lineStart() {
	        clip.point = pointLine;
	        line.lineStart();
	      }
	      function lineEnd() {
	        clip.point = point;
	        line.lineEnd();
	      }
	      var segments;
	      var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), polygonStarted = false, polygon, ring;
	      function pointRing(λ, φ) {
	        ring.push([ λ, φ ]);
	        var point = rotate(λ, φ);
	        ringListener.point(point[0], point[1]);
	      }
	      function ringStart() {
	        ringListener.lineStart();
	        ring = [];
	      }
	      function ringEnd() {
	        pointRing(ring[0][0], ring[0][1]);
	        ringListener.lineEnd();
	        var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length;
	        ring.pop();
	        polygon.push(ring);
	        ring = null;
	        if (!n) return;
	        if (clean & 1) {
	          segment = ringSegments[0];
	          var n = segment.length - 1, i = -1, point;
	          if (n > 0) {
	            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
	            listener.lineStart();
	            while (++i < n) listener.point((point = segment[i])[0], point[1]);
	            listener.lineEnd();
	          }
	          return;
	        }
	        if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
	        segments.push(ringSegments.filter(d3_geo_clipSegmentLength1));
	      }
	      return clip;
	    };
	  }
	  function d3_geo_clipSegmentLength1(segment) {
	    return segment.length > 1;
	  }
	  function d3_geo_clipBufferListener() {
	    var lines = [], line;
	    return {
	      lineStart: function() {
	        lines.push(line = []);
	      },
	      point: function(λ, φ) {
	        line.push([ λ, φ ]);
	      },
	      lineEnd: d3_noop,
	      buffer: function() {
	        var buffer = lines;
	        lines = [];
	        line = null;
	        return buffer;
	      },
	      rejoin: function() {
	        if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
	      }
	    };
	  }
	  function d3_geo_clipSort(a, b) {
	    return ((a = a.x)[0] < 0 ? a[1] - halfπ - ε : halfπ - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfπ - ε : halfπ - b[1]);
	  }
	  var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate, [ -π, -π / 2 ]);
	  function d3_geo_clipAntimeridianLine(listener) {
	    var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean;
	    return {
	      lineStart: function() {
	        listener.lineStart();
	        clean = 1;
	      },
	      point: function(λ1, φ1) {
	        var sλ1 = λ1 > 0 ? π : -π, dλ = abs(λ1 - λ0);
	        if (abs(dλ - π) < ε) {
	          listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? halfπ : -halfπ);
	          listener.point(sλ0, φ0);
	          listener.lineEnd();
	          listener.lineStart();
	          listener.point(sλ1, φ0);
	          listener.point(λ1, φ0);
	          clean = 0;
	        } else if (sλ0 !== sλ1 && dλ >= π) {
	          if (abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε;
	          if (abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε;
	          φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1);
	          listener.point(sλ0, φ0);
	          listener.lineEnd();
	          listener.lineStart();
	          listener.point(sλ1, φ0);
	          clean = 0;
	        }
	        listener.point(λ0 = λ1, φ0 = φ1);
	        sλ0 = sλ1;
	      },
	      lineEnd: function() {
	        listener.lineEnd();
	        λ0 = φ0 = NaN;
	      },
	      clean: function() {
	        return 2 - clean;
	      }
	    };
	  }
	  function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) {
	    var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
	    return abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
	  }
	  function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) {
	    var φ;
	    if (from == null) {
	      φ = direction * halfπ;
	      listener.point(-π, φ);
	      listener.point(0, φ);
	      listener.point(π, φ);
	      listener.point(π, 0);
	      listener.point(π, -φ);
	      listener.point(0, -φ);
	      listener.point(-π, -φ);
	      listener.point(-π, 0);
	      listener.point(-π, φ);
	    } else if (abs(from[0] - to[0]) > ε) {
	      var s = from[0] < to[0] ? π : -π;
	      φ = direction * s / 2;
	      listener.point(-s, φ);
	      listener.point(0, φ);
	      listener.point(s, φ);
	    } else {
	      listener.point(to[0], to[1]);
	    }
	  }
	  function d3_geo_pointInPolygon(point, polygon) {
	    var meridian = point[0], parallel = point[1], meridianNormal = [ Math.sin(meridian), -Math.cos(meridian), 0 ], polarAngle = 0, winding = 0;
	    d3_geo_areaRingSum.reset();
	    for (var i = 0, n = polygon.length; i < n; ++i) {
	      var ring = polygon[i], m = ring.length;
	      if (!m) continue;
	      var point0 = ring[0], λ0 = point0[0], φ0 = point0[1] / 2 + π / 4, sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), j = 1;
	      while (true) {
	        if (j === m) j = 0;
	        point = ring[j];
	        var λ = point[0], φ = point[1] / 2 + π / 4, sinφ = Math.sin(φ), cosφ = Math.cos(φ), dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, antimeridian = adλ > π, k = sinφ0 * sinφ;
	        d3_geo_areaRingSum.add(Math.atan2(k * sdλ * Math.sin(adλ), cosφ0 * cosφ + k * Math.cos(adλ)));
	        polarAngle += antimeridian ? dλ + sdλ * τ : dλ;
	        if (antimeridian ^ λ0 >= meridian ^ λ >= meridian) {
	          var arc = d3_geo_cartesianCross(d3_geo_cartesian(point0), d3_geo_cartesian(point));
	          d3_geo_cartesianNormalize(arc);
	          var intersection = d3_geo_cartesianCross(meridianNormal, arc);
	          d3_geo_cartesianNormalize(intersection);
	          var φarc = (antimeridian ^ dλ >= 0 ? -1 : 1) * d3_asin(intersection[2]);
	          if (parallel > φarc || parallel === φarc && (arc[0] || arc[1])) {
	            winding += antimeridian ^ dλ >= 0 ? 1 : -1;
	          }
	        }
	        if (!j++) break;
	        λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ, point0 = point;
	      }
	    }
	    return (polarAngle < -ε || polarAngle < ε && d3_geo_areaRingSum < -ε) ^ winding & 1;
	  }
	  function d3_geo_clipCircle(radius) {
	    var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians);
	    return d3_geo_clip(visible, clipLine, interpolate, smallRadius ? [ 0, -radius ] : [ -π, radius - π ]);
	    function visible(λ, φ) {
	      return Math.cos(λ) * Math.cos(φ) > cr;
	    }
	    function clipLine(listener) {
	      var point0, c0, v0, v00, clean;
	      return {
	        lineStart: function() {
	          v00 = v0 = false;
	          clean = 1;
	        },
	        point: function(λ, φ) {
	          var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0;
	          if (!point0 && (v00 = v0 = v)) listener.lineStart();
	          if (v !== v0) {
	            point2 = intersect(point0, point1);
	            if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) {
	              point1[0] += ε;
	              point1[1] += ε;
	              v = visible(point1[0], point1[1]);
	            }
	          }
	          if (v !== v0) {
	            clean = 0;
	            if (v) {
	              listener.lineStart();
	              point2 = intersect(point1, point0);
	              listener.point(point2[0], point2[1]);
	            } else {
	              point2 = intersect(point0, point1);
	              listener.point(point2[0], point2[1]);
	              listener.lineEnd();
	            }
	            point0 = point2;
	          } else if (notHemisphere && point0 && smallRadius ^ v) {
	            var t;
	            if (!(c & c0) && (t = intersect(point1, point0, true))) {
	              clean = 0;
	              if (smallRadius) {
	                listener.lineStart();
	                listener.point(t[0][0], t[0][1]);
	                listener.point(t[1][0], t[1][1]);
	                listener.lineEnd();
	              } else {
	                listener.point(t[1][0], t[1][1]);
	                listener.lineEnd();
	                listener.lineStart();
	                listener.point(t[0][0], t[0][1]);
	              }
	            }
	          }
	          if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) {
	            listener.point(point1[0], point1[1]);
	          }
	          point0 = point1, v0 = v, c0 = c;
	        },
	        lineEnd: function() {
	          if (v0) listener.lineEnd();
	          point0 = null;
	        },
	        clean: function() {
	          return clean | (v00 && v0) << 1;
	        }
	      };
	    }
	    function intersect(a, b, two) {
	      var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b);
	      var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2;
	      if (!determinant) return !two && a;
	      var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2);
	      d3_geo_cartesianAdd(A, B);
	      var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1);
	      if (t2 < 0) return;
	      var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu);
	      d3_geo_cartesianAdd(q, A);
	      q = d3_geo_spherical(q);
	      if (!two) return q;
	      var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z;
	      if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z;
	      var δλ = λ1 - λ0, polar = abs(δλ - π) < ε, meridian = polar || δλ < ε;
	      if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z;
	      if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) {
	        var q1 = d3_geo_cartesianScale(u, (-w + t) / uu);
	        d3_geo_cartesianAdd(q1, A);
	        return [ q, d3_geo_spherical(q1) ];
	      }
	    }
	    function code(λ, φ) {
	      var r = smallRadius ? radius : π - radius, code = 0;
	      if (λ < -r) code |= 1; else if (λ > r) code |= 2;
	      if (φ < -r) code |= 4; else if (φ > r) code |= 8;
	      return code;
	    }
	  }
	  function d3_geom_clipLine(x0, y0, x1, y1) {
	    return function(line) {
	      var a = line.a, b = line.b, ax = a.x, ay = a.y, bx = b.x, by = b.y, t0 = 0, t1 = 1, dx = bx - ax, dy = by - ay, r;
	      r = x0 - ax;
	      if (!dx && r > 0) return;
	      r /= dx;
	      if (dx < 0) {
	        if (r < t0) return;
	        if (r < t1) t1 = r;
	      } else if (dx > 0) {
	        if (r > t1) return;
	        if (r > t0) t0 = r;
	      }
	      r = x1 - ax;
	      if (!dx && r < 0) return;
	      r /= dx;
	      if (dx < 0) {
	        if (r > t1) return;
	        if (r > t0) t0 = r;
	      } else if (dx > 0) {
	        if (r < t0) return;
	        if (r < t1) t1 = r;
	      }
	      r = y0 - ay;
	      if (!dy && r > 0) return;
	      r /= dy;
	      if (dy < 0) {
	        if (r < t0) return;
	        if (r < t1) t1 = r;
	      } else if (dy > 0) {
	        if (r > t1) return;
	        if (r > t0) t0 = r;
	      }
	      r = y1 - ay;
	      if (!dy && r < 0) return;
	      r /= dy;
	      if (dy < 0) {
	        if (r > t1) return;
	        if (r > t0) t0 = r;
	      } else if (dy > 0) {
	        if (r < t0) return;
	        if (r < t1) t1 = r;
	      }
	      if (t0 > 0) line.a = {
	        x: ax + t0 * dx,
	        y: ay + t0 * dy
	      };
	      if (t1 < 1) line.b = {
	        x: ax + t1 * dx,
	        y: ay + t1 * dy
	      };
	      return line;
	    };
	  }
	  var d3_geo_clipExtentMAX = 1e9;
	  d3.geo.clipExtent = function() {
	    var x0, y0, x1, y1, stream, clip, clipExtent = {
	      stream: function(output) {
	        if (stream) stream.valid = false;
	        stream = clip(output);
	        stream.valid = true;
	        return stream;
	      },
	      extent: function(_) {
	        if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
	        clip = d3_geo_clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]);
	        if (stream) stream.valid = false, stream = null;
	        return clipExtent;
	      }
	    };
	    return clipExtent.extent([ [ 0, 0 ], [ 960, 500 ] ]);
	  };
	  function d3_geo_clipExtent(x0, y0, x1, y1) {
	    return function(listener) {
	      var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), clipLine = d3_geom_clipLine(x0, y0, x1, y1), segments, polygon, ring;
	      var clip = {
	        point: point,
	        lineStart: lineStart,
	        lineEnd: lineEnd,
	        polygonStart: function() {
	          listener = bufferListener;
	          segments = [];
	          polygon = [];
	          clean = true;
	        },
	        polygonEnd: function() {
	          listener = listener_;
	          segments = d3.merge(segments);
	          var clipStartInside = insidePolygon([ x0, y1 ]), inside = clean && clipStartInside, visible = segments.length;
	          if (inside || visible) {
	            listener.polygonStart();
	            if (inside) {
	              listener.lineStart();
	              interpolate(null, null, 1, listener);
	              listener.lineEnd();
	            }
	            if (visible) {
	              d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener);
	            }
	            listener.polygonEnd();
	          }
	          segments = polygon = ring = null;
	        }
	      };
	      function insidePolygon(p) {
	        var wn = 0, n = polygon.length, y = p[1];
	        for (var i = 0; i < n; ++i) {
	          for (var j = 1, v = polygon[i], m = v.length, a = v[0], b; j < m; ++j) {
	            b = v[j];
	            if (a[1] <= y) {
	              if (b[1] > y && d3_cross2d(a, b, p) > 0) ++wn;
	            } else {
	              if (b[1] <= y && d3_cross2d(a, b, p) < 0) --wn;
	            }
	            a = b;
	          }
	        }
	        return wn !== 0;
	      }
	      function interpolate(from, to, direction, listener) {
	        var a = 0, a1 = 0;
	        if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) {
	          do {
	            listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
	          } while ((a = (a + direction + 4) % 4) !== a1);
	        } else {
	          listener.point(to[0], to[1]);
	        }
	      }
	      function pointVisible(x, y) {
	        return x0 <= x && x <= x1 && y0 <= y && y <= y1;
	      }
	      function point(x, y) {
	        if (pointVisible(x, y)) listener.point(x, y);
	      }
	      var x__, y__, v__, x_, y_, v_, first, clean;
	      function lineStart() {
	        clip.point = linePoint;
	        if (polygon) polygon.push(ring = []);
	        first = true;
	        v_ = false;
	        x_ = y_ = NaN;
	      }
	      function lineEnd() {
	        if (segments) {
	          linePoint(x__, y__);
	          if (v__ && v_) bufferListener.rejoin();
	          segments.push(bufferListener.buffer());
	        }
	        clip.point = point;
	        if (v_) listener.lineEnd();
	      }
	      function linePoint(x, y) {
	        x = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, x));
	        y = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, y));
	        var v = pointVisible(x, y);
	        if (polygon) ring.push([ x, y ]);
	        if (first) {
	          x__ = x, y__ = y, v__ = v;
	          first = false;
	          if (v) {
	            listener.lineStart();
	            listener.point(x, y);
	          }
	        } else {
	          if (v && v_) listener.point(x, y); else {
	            var l = {
	              a: {
	                x: x_,
	                y: y_
	              },
	              b: {
	                x: x,
	                y: y
	              }
	            };
	            if (clipLine(l)) {
	              if (!v_) {
	                listener.lineStart();
	                listener.point(l.a.x, l.a.y);
	              }
	              listener.point(l.b.x, l.b.y);
	              if (!v) listener.lineEnd();
	              clean = false;
	            } else if (v) {
	              listener.lineStart();
	              listener.point(x, y);
	              clean = false;
	            }
	          }
	        }
	        x_ = x, y_ = y, v_ = v;
	      }
	      return clip;
	    };
	    function corner(p, direction) {
	      return abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2;
	    }
	    function compare(a, b) {
	      return comparePoints(a.x, b.x);
	    }
	    function comparePoints(a, b) {
	      var ca = corner(a, 1), cb = corner(b, 1);
	      return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];
	    }
	  }
	  function d3_geo_conic(projectAt) {
	    var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1);
	    p.parallels = function(_) {
	      if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ];
	      return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180);
	    };
	    return p;
	  }
	  function d3_geo_conicEqualArea(φ0, φ1) {
	    var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n;
	    function forward(λ, φ) {
	      var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n;
	      return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ];
	    }
	    forward.invert = function(x, y) {
	      var ρ0_y = ρ0 - y;
	      return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
	    };
	    return forward;
	  }
	  (d3.geo.conicEqualArea = function() {
	    return d3_geo_conic(d3_geo_conicEqualArea);
	  }).raw = d3_geo_conicEqualArea;
	  d3.geo.albers = function() {
	    return d3.geo.conicEqualArea().rotate([ 96, 0 ]).center([ -.6, 38.7 ]).parallels([ 29.5, 45.5 ]).scale(1070);
	  };
	  d3.geo.albersUsa = function() {
	    var lower48 = d3.geo.albers();
	    var alaska = d3.geo.conicEqualArea().rotate([ 154, 0 ]).center([ -2, 58.5 ]).parallels([ 55, 65 ]);
	    var hawaii = d3.geo.conicEqualArea().rotate([ 157, 0 ]).center([ -3, 19.9 ]).parallels([ 8, 18 ]);
	    var point, pointStream = {
	      point: function(x, y) {
	        point = [ x, y ];
	      }
	    }, lower48Point, alaskaPoint, hawaiiPoint;
	    function albersUsa(coordinates) {
	      var x = coordinates[0], y = coordinates[1];
	      point = null;
	      (lower48Point(x, y), point) || (alaskaPoint(x, y), point) || hawaiiPoint(x, y);
	      return point;
	    }
	    albersUsa.invert = function(coordinates) {
	      var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k;
	      return (y >= .12 && y < .234 && x >= -.425 && x < -.214 ? alaska : y >= .166 && y < .234 && x >= -.214 && x < -.115 ? hawaii : lower48).invert(coordinates);
	    };
	    albersUsa.stream = function(stream) {
	      var lower48Stream = lower48.stream(stream), alaskaStream = alaska.stream(stream), hawaiiStream = hawaii.stream(stream);
	      return {
	        point: function(x, y) {
	          lower48Stream.point(x, y);
	          alaskaStream.point(x, y);
	          hawaiiStream.point(x, y);
	        },
	        sphere: function() {
	          lower48Stream.sphere();
	          alaskaStream.sphere();
	          hawaiiStream.sphere();
	        },
	        lineStart: function() {
	          lower48Stream.lineStart();
	          alaskaStream.lineStart();
	          hawaiiStream.lineStart();
	        },
	        lineEnd: function() {
	          lower48Stream.lineEnd();
	          alaskaStream.lineEnd();
	          hawaiiStream.lineEnd();
	        },
	        polygonStart: function() {
	          lower48Stream.polygonStart();
	          alaskaStream.polygonStart();
	          hawaiiStream.polygonStart();
	        },
	        polygonEnd: function() {
	          lower48Stream.polygonEnd();
	          alaskaStream.polygonEnd();
	          hawaiiStream.polygonEnd();
	        }
	      };
	    };
	    albersUsa.precision = function(_) {
	      if (!arguments.length) return lower48.precision();
	      lower48.precision(_);
	      alaska.precision(_);
	      hawaii.precision(_);
	      return albersUsa;
	    };
	    albersUsa.scale = function(_) {
	      if (!arguments.length) return lower48.scale();
	      lower48.scale(_);
	      alaska.scale(_ * .35);
	      hawaii.scale(_);
	      return albersUsa.translate(lower48.translate());
	    };
	    albersUsa.translate = function(_) {
	      if (!arguments.length) return lower48.translate();
	      var k = lower48.scale(), x = +_[0], y = +_[1];
	      lower48Point = lower48.translate(_).clipExtent([ [ x - .455 * k, y - .238 * k ], [ x + .455 * k, y + .238 * k ] ]).stream(pointStream).point;
	      alaskaPoint = alaska.translate([ x - .307 * k, y + .201 * k ]).clipExtent([ [ x - .425 * k + ε, y + .12 * k + ε ], [ x - .214 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
	      hawaiiPoint = hawaii.translate([ x - .205 * k, y + .212 * k ]).clipExtent([ [ x - .214 * k + ε, y + .166 * k + ε ], [ x - .115 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
	      return albersUsa;
	    };
	    return albersUsa.scale(1070);
	  };
	  var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = {
	    point: d3_noop,
	    lineStart: d3_noop,
	    lineEnd: d3_noop,
	    polygonStart: function() {
	      d3_geo_pathAreaPolygon = 0;
	      d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart;
	    },
	    polygonEnd: function() {
	      d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop;
	      d3_geo_pathAreaSum += abs(d3_geo_pathAreaPolygon / 2);
	    }
	  };
	  function d3_geo_pathAreaRingStart() {
	    var x00, y00, x0, y0;
	    d3_geo_pathArea.point = function(x, y) {
	      d3_geo_pathArea.point = nextPoint;
	      x00 = x0 = x, y00 = y0 = y;
	    };
	    function nextPoint(x, y) {
	      d3_geo_pathAreaPolygon += y0 * x - x0 * y;
	      x0 = x, y0 = y;
	    }
	    d3_geo_pathArea.lineEnd = function() {
	      nextPoint(x00, y00);
	    };
	  }
	  var d3_geo_pathBoundsX0, d3_geo_pathBoundsY0, d3_geo_pathBoundsX1, d3_geo_pathBoundsY1;
	  var d3_geo_pathBounds = {
	    point: d3_geo_pathBoundsPoint,
	    lineStart: d3_noop,
	    lineEnd: d3_noop,
	    polygonStart: d3_noop,
	    polygonEnd: d3_noop
	  };
	  function d3_geo_pathBoundsPoint(x, y) {
	    if (x < d3_geo_pathBoundsX0) d3_geo_pathBoundsX0 = x;
	    if (x > d3_geo_pathBoundsX1) d3_geo_pathBoundsX1 = x;
	    if (y < d3_geo_pathBoundsY0) d3_geo_pathBoundsY0 = y;
	    if (y > d3_geo_pathBoundsY1) d3_geo_pathBoundsY1 = y;
	  }
	  function d3_geo_pathBuffer() {
	    var pointCircle = d3_geo_pathBufferCircle(4.5), buffer = [];
	    var stream = {
	      point: point,
	      lineStart: function() {
	        stream.point = pointLineStart;
	      },
	      lineEnd: lineEnd,
	      polygonStart: function() {
	        stream.lineEnd = lineEndPolygon;
	      },
	      polygonEnd: function() {
	        stream.lineEnd = lineEnd;
	        stream.point = point;
	      },
	      pointRadius: function(_) {
	        pointCircle = d3_geo_pathBufferCircle(_);
	        return stream;
	      },
	      result: function() {
	        if (buffer.length) {
	          var result = buffer.join("");
	          buffer = [];
	          return result;
	        }
	      }
	    };
	    function point(x, y) {
	      buffer.push("M", x, ",", y, pointCircle);
	    }
	    function pointLineStart(x, y) {
	      buffer.push("M", x, ",", y);
	      stream.point = pointLine;
	    }
	    function pointLine(x, y) {
	      buffer.push("L", x, ",", y);
	    }
	    function lineEnd() {
	      stream.point = point;
	    }
	    function lineEndPolygon() {
	      buffer.push("Z");
	    }
	    return stream;
	  }
	  function d3_geo_pathBufferCircle(radius) {
	    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + "z";
	  }
	  var d3_geo_pathCentroid = {
	    point: d3_geo_pathCentroidPoint,
	    lineStart: d3_geo_pathCentroidLineStart,
	    lineEnd: d3_geo_pathCentroidLineEnd,
	    polygonStart: function() {
	      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart;
	    },
	    polygonEnd: function() {
	      d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
	      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart;
	      d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd;
	    }
	  };
	  function d3_geo_pathCentroidPoint(x, y) {
	    d3_geo_centroidX0 += x;
	    d3_geo_centroidY0 += y;
	    ++d3_geo_centroidZ0;
	  }
	  function d3_geo_pathCentroidLineStart() {
	    var x0, y0;
	    d3_geo_pathCentroid.point = function(x, y) {
	      d3_geo_pathCentroid.point = nextPoint;
	      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
	    };
	    function nextPoint(x, y) {
	      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
	      d3_geo_centroidX1 += z * (x0 + x) / 2;
	      d3_geo_centroidY1 += z * (y0 + y) / 2;
	      d3_geo_centroidZ1 += z;
	      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
	    }
	  }
	  function d3_geo_pathCentroidLineEnd() {
	    d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
	  }
	  function d3_geo_pathCentroidRingStart() {
	    var x00, y00, x0, y0;
	    d3_geo_pathCentroid.point = function(x, y) {
	      d3_geo_pathCentroid.point = nextPoint;
	      d3_geo_pathCentroidPoint(x00 = x0 = x, y00 = y0 = y);
	    };
	    function nextPoint(x, y) {
	      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
	      d3_geo_centroidX1 += z * (x0 + x) / 2;
	      d3_geo_centroidY1 += z * (y0 + y) / 2;
	      d3_geo_centroidZ1 += z;
	      z = y0 * x - x0 * y;
	      d3_geo_centroidX2 += z * (x0 + x);
	      d3_geo_centroidY2 += z * (y0 + y);
	      d3_geo_centroidZ2 += z * 3;
	      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
	    }
	    d3_geo_pathCentroid.lineEnd = function() {
	      nextPoint(x00, y00);
	    };
	  }
	  function d3_geo_pathContext(context) {
	    var pointRadius = 4.5;
	    var stream = {
	      point: point,
	      lineStart: function() {
	        stream.point = pointLineStart;
	      },
	      lineEnd: lineEnd,
	      polygonStart: function() {
	        stream.lineEnd = lineEndPolygon;
	      },
	      polygonEnd: function() {
	        stream.lineEnd = lineEnd;
	        stream.point = point;
	      },
	      pointRadius: function(_) {
	        pointRadius = _;
	        return stream;
	      },
	      result: d3_noop
	    };
	    function point(x, y) {
	      context.moveTo(x + pointRadius, y);
	      context.arc(x, y, pointRadius, 0, τ);
	    }
	    function pointLineStart(x, y) {
	      context.moveTo(x, y);
	      stream.point = pointLine;
	    }
	    function pointLine(x, y) {
	      context.lineTo(x, y);
	    }
	    function lineEnd() {
	      stream.point = point;
	    }
	    function lineEndPolygon() {
	      context.closePath();
	    }
	    return stream;
	  }
	  function d3_geo_resample(project) {
	    var δ2 = .5, cosMinDistance = Math.cos(30 * d3_radians), maxDepth = 16;
	    function resample(stream) {
	      return (maxDepth ? resampleRecursive : resampleNone)(stream);
	    }
	    function resampleNone(stream) {
	      return d3_geo_transformPoint(stream, function(x, y) {
	        x = project(x, y);
	        stream.point(x[0], x[1]);
	      });
	    }
	    function resampleRecursive(stream) {
	      var λ00, x00, y00, a00, b00, c00, λ0, x0, y0, a0, b0, c0;
	      var resample = {
	        point: point,
	        lineStart: lineStart,
	        lineEnd: lineEnd,
	        polygonStart: function() {
	          stream.polygonStart();
	          resample.lineStart = ringStart;
	        },
	        polygonEnd: function() {
	          stream.polygonEnd();
	          resample.lineStart = lineStart;
	        }
	      };
	      function point(x, y) {
	        x = project(x, y);
	        stream.point(x[0], x[1]);
	      }
	      function lineStart() {
	        x0 = NaN;
	        resample.point = linePoint;
	        stream.lineStart();
	      }
	      function linePoint(λ, φ) {
	        var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ);
	        resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
	        stream.point(x0, y0);
	      }
	      function lineEnd() {
	        resample.point = point;
	        stream.lineEnd();
	      }
	      function ringStart() {
	        lineStart();
	        resample.point = ringPoint;
	        resample.lineEnd = ringEnd;
	      }
	      function ringPoint(λ, φ) {
	        linePoint(λ00 = λ, φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
	        resample.point = linePoint;
	      }
	      function ringEnd() {
	        resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream);
	        resample.lineEnd = lineEnd;
	        lineEnd();
	      }
	      return resample;
	    }
	    function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) {
	      var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy;
	      if (d2 > 4 * δ2 && depth--) {
	        var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = abs(abs(c) - 1) < ε || abs(λ0 - λ1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2;
	        if (dz * dz / d2 > δ2 || abs((dx * dx2 + dy * dy2) / d2 - .5) > .3 || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) {
	          resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream);
	          stream.point(x2, y2);
	          resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream);
	        }
	      }
	    }
	    resample.precision = function(_) {
	      if (!arguments.length) return Math.sqrt(δ2);
	      maxDepth = (δ2 = _ * _) > 0 && 16;
	      return resample;
	    };
	    return resample;
	  }
	  d3.geo.path = function() {
	    var pointRadius = 4.5, projection, context, projectStream, contextStream, cacheStream;
	    function path(object) {
	      if (object) {
	        if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
	        if (!cacheStream || !cacheStream.valid) cacheStream = projectStream(contextStream);
	        d3.geo.stream(object, cacheStream);
	      }
	      return contextStream.result();
	    }
	    path.area = function(object) {
	      d3_geo_pathAreaSum = 0;
	      d3.geo.stream(object, projectStream(d3_geo_pathArea));
	      return d3_geo_pathAreaSum;
	    };
	    path.centroid = function(object) {
	      d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
	      d3.geo.stream(object, projectStream(d3_geo_pathCentroid));
	      return d3_geo_centroidZ2 ? [ d3_geo_centroidX2 / d3_geo_centroidZ2, d3_geo_centroidY2 / d3_geo_centroidZ2 ] : d3_geo_centroidZ1 ? [ d3_geo_centroidX1 / d3_geo_centroidZ1, d3_geo_centroidY1 / d3_geo_centroidZ1 ] : d3_geo_centroidZ0 ? [ d3_geo_centroidX0 / d3_geo_centroidZ0, d3_geo_centroidY0 / d3_geo_centroidZ0 ] : [ NaN, NaN ];
	    };
	    path.bounds = function(object) {
	      d3_geo_pathBoundsX1 = d3_geo_pathBoundsY1 = -(d3_geo_pathBoundsX0 = d3_geo_pathBoundsY0 = Infinity);
	      d3.geo.stream(object, projectStream(d3_geo_pathBounds));
	      return [ [ d3_geo_pathBoundsX0, d3_geo_pathBoundsY0 ], [ d3_geo_pathBoundsX1, d3_geo_pathBoundsY1 ] ];
	    };
	    path.projection = function(_) {
	      if (!arguments.length) return projection;
	      projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity;
	      return reset();
	    };
	    path.context = function(_) {
	      if (!arguments.length) return context;
	      contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_);
	      if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
	      return reset();
	    };
	    path.pointRadius = function(_) {
	      if (!arguments.length) return pointRadius;
	      pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
	      return path;
	    };
	    function reset() {
	      cacheStream = null;
	      return path;
	    }
	    return path.projection(d3.geo.albersUsa()).context(null);
	  };
	  function d3_geo_pathProjectStream(project) {
	    var resample = d3_geo_resample(function(x, y) {
	      return project([ x * d3_degrees, y * d3_degrees ]);
	    });
	    return function(stream) {
	      return d3_geo_projectionRadians(resample(stream));
	    };
	  }
	  d3.geo.transform = function(methods) {
	    return {
	      stream: function(stream) {
	        var transform = new d3_geo_transform(stream);
	        for (var k in methods) transform[k] = methods[k];
	        return transform;
	      }
	    };
	  };
	  function d3_geo_transform(stream) {
	    this.stream = stream;
	  }
	  d3_geo_transform.prototype = {
	    point: function(x, y) {
	      this.stream.point(x, y);
	    },
	    sphere: function() {
	      this.stream.sphere();
	    },
	    lineStart: function() {
	      this.stream.lineStart();
	    },
	    lineEnd: function() {
	      this.stream.lineEnd();
	    },
	    polygonStart: function() {
	      this.stream.polygonStart();
	    },
	    polygonEnd: function() {
	      this.stream.polygonEnd();
	    }
	  };
	  function d3_geo_transformPoint(stream, point) {
	    return {
	      point: point,
	      sphere: function() {
	        stream.sphere();
	      },
	      lineStart: function() {
	        stream.lineStart();
	      },
	      lineEnd: function() {
	        stream.lineEnd();
	      },
	      polygonStart: function() {
	        stream.polygonStart();
	      },
	      polygonEnd: function() {
	        stream.polygonEnd();
	      }
	    };
	  }
	  d3.geo.projection = d3_geo_projection;
	  d3.geo.projectionMutator = d3_geo_projectionMutator;
	  function d3_geo_projection(project) {
	    return d3_geo_projectionMutator(function() {
	      return project;
	    })();
	  }
	  function d3_geo_projectionMutator(projectAt) {
	    var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) {
	      x = project(x, y);
	      return [ x[0] * k + δx, δy - x[1] * k ];
	    }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null, stream;
	    function projection(point) {
	      point = projectRotate(point[0] * d3_radians, point[1] * d3_radians);
	      return [ point[0] * k + δx, δy - point[1] * k ];
	    }
	    function invert(point) {
	      point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k);
	      return point && [ point[0] * d3_degrees, point[1] * d3_degrees ];
	    }
	    projection.stream = function(output) {
	      if (stream) stream.valid = false;
	      stream = d3_geo_projectionRadians(preclip(rotate, projectResample(postclip(output))));
	      stream.valid = true;
	      return stream;
	    };
	    projection.clipAngle = function(_) {
	      if (!arguments.length) return clipAngle;
	      preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians);
	      return invalidate();
	    };
	    projection.clipExtent = function(_) {
	      if (!arguments.length) return clipExtent;
	      clipExtent = _;
	      postclip = _ ? d3_geo_clipExtent(_[0][0], _[0][1], _[1][0], _[1][1]) : d3_identity;
	      return invalidate();
	    };
	    projection.scale = function(_) {
	      if (!arguments.length) return k;
	      k = +_;
	      return reset();
	    };
	    projection.translate = function(_) {
	      if (!arguments.length) return [ x, y ];
	      x = +_[0];
	      y = +_[1];
	      return reset();
	    };
	    projection.center = function(_) {
	      if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ];
	      λ = _[0] % 360 * d3_radians;
	      φ = _[1] % 360 * d3_radians;
	      return reset();
	    };
	    projection.rotate = function(_) {
	      if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ];
	      δλ = _[0] % 360 * d3_radians;
	      δφ = _[1] % 360 * d3_radians;
	      δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0;
	      return reset();
	    };
	    d3.rebind(projection, projectResample, "precision");
	    function reset() {
	      projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
	      var center = project(λ, φ);
	      δx = x - center[0] * k;
	      δy = y + center[1] * k;
	      return invalidate();
	    }
	    function invalidate() {
	      if (stream) stream.valid = false, stream = null;
	      return projection;
	    }
	    return function() {
	      project = projectAt.apply(this, arguments);
	      projection.invert = project.invert && invert;
	      return reset();
	    };
	  }
	  function d3_geo_projectionRadians(stream) {
	    return d3_geo_transformPoint(stream, function(x, y) {
	      stream.point(x * d3_radians, y * d3_radians);
	    });
	  }
	  function d3_geo_equirectangular(λ, φ) {
	    return [ λ, φ ];
	  }
	  (d3.geo.equirectangular = function() {
	    return d3_geo_projection(d3_geo_equirectangular);
	  }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular;
	  d3.geo.rotation = function(rotate) {
	    rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0);
	    function forward(coordinates) {
	      coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
	      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
	    }
	    forward.invert = function(coordinates) {
	      coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
	      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
	    };
	    return forward;
	  };
	  function d3_geo_identityRotation(λ, φ) {
	    return [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
	  }
	  d3_geo_identityRotation.invert = d3_geo_equirectangular;
	  function d3_geo_rotation(δλ, δφ, δγ) {
	    return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_identityRotation;
	  }
	  function d3_geo_forwardRotationλ(δλ) {
	    return function(λ, φ) {
	      return λ += δλ, [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
	    };
	  }
	  function d3_geo_rotationλ(δλ) {
	    var rotation = d3_geo_forwardRotationλ(δλ);
	    rotation.invert = d3_geo_forwardRotationλ(-δλ);
	    return rotation;
	  }
	  function d3_geo_rotationφγ(δφ, δγ) {
	    var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ);
	    function rotation(λ, φ) {
	      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ;
	      return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), d3_asin(k * cosδγ + y * sinδγ) ];
	    }
	    rotation.invert = function(λ, φ) {
	      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ;
	      return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), d3_asin(k * cosδφ - x * sinδφ) ];
	    };
	    return rotation;
	  }
	  d3.geo.circle = function() {
	    var origin = [ 0, 0 ], angle, precision = 6, interpolate;
	    function circle() {
	      var center = typeof origin === "function" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = [];
	      interpolate(null, null, 1, {
	        point: function(x, y) {
	          ring.push(x = rotate(x, y));
	          x[0] *= d3_degrees, x[1] *= d3_degrees;
	        }
	      });
	      return {
	        type: "Polygon",
	        coordinates: [ ring ]
	      };
	    }
	    circle.origin = function(x) {
	      if (!arguments.length) return origin;
	      origin = x;
	      return circle;
	    };
	    circle.angle = function(x) {
	      if (!arguments.length) return angle;
	      interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians);
	      return circle;
	    };
	    circle.precision = function(_) {
	      if (!arguments.length) return precision;
	      interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians);
	      return circle;
	    };
	    return circle.angle(90);
	  };
	  function d3_geo_circleInterpolate(radius, precision) {
	    var cr = Math.cos(radius), sr = Math.sin(radius);
	    return function(from, to, direction, listener) {
	      var step = direction * precision;
	      if (from != null) {
	        from = d3_geo_circleAngle(cr, from);
	        to = d3_geo_circleAngle(cr, to);
	        if (direction > 0 ? from < to : from > to) from += direction * τ;
	      } else {
	        from = radius + direction * τ;
	        to = radius - .5 * step;
	      }
	      for (var point, t = from; direction > 0 ? t > to : t < to; t -= step) {
	        listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]);
	      }
	    };
	  }
	  function d3_geo_circleAngle(cr, point) {
	    var a = d3_geo_cartesian(point);
	    a[0] -= cr;
	    d3_geo_cartesianNormalize(a);
	    var angle = d3_acos(-a[1]);
	    return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI);
	  }
	  d3.geo.distance = function(a, b) {
	    var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t;
	    return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);
	  };
	  d3.geo.graticule = function() {
	    var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5;
	    function graticule() {
	      return {
	        type: "MultiLineString",
	        coordinates: lines()
	      };
	    }
	    function lines() {
	      return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) {
	        return abs(x % DX) > ε;
	      }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) {
	        return abs(y % DY) > ε;
	      }).map(y));
	    }
	    graticule.lines = function() {
	      return lines().map(function(coordinates) {
	        return {
	          type: "LineString",
	          coordinates: coordinates
	        };
	      });
	    };
	    graticule.outline = function() {
	      return {
	        type: "Polygon",
	        coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ]
	      };
	    };
	    graticule.extent = function(_) {
	      if (!arguments.length) return graticule.minorExtent();
	      return graticule.majorExtent(_).minorExtent(_);
	    };
	    graticule.majorExtent = function(_) {
	      if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ];
	      X0 = +_[0][0], X1 = +_[1][0];
	      Y0 = +_[0][1], Y1 = +_[1][1];
	      if (X0 > X1) _ = X0, X0 = X1, X1 = _;
	      if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
	      return graticule.precision(precision);
	    };
	    graticule.minorExtent = function(_) {
	      if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
	      x0 = +_[0][0], x1 = +_[1][0];
	      y0 = +_[0][1], y1 = +_[1][1];
	      if (x0 > x1) _ = x0, x0 = x1, x1 = _;
	      if (y0 > y1) _ = y0, y0 = y1, y1 = _;
	      return graticule.precision(precision);
	    };
	    graticule.step = function(_) {
	      if (!arguments.length) return graticule.minorStep();
	      return graticule.majorStep(_).minorStep(_);
	    };
	    graticule.majorStep = function(_) {
	      if (!arguments.length) return [ DX, DY ];
	      DX = +_[0], DY = +_[1];
	      return graticule;
	    };
	    graticule.minorStep = function(_) {
	      if (!arguments.length) return [ dx, dy ];
	      dx = +_[0], dy = +_[1];
	      return graticule;
	    };
	    graticule.precision = function(_) {
	      if (!arguments.length) return precision;
	      precision = +_;
	      x = d3_geo_graticuleX(y0, y1, 90);
	      y = d3_geo_graticuleY(x0, x1, precision);
	      X = d3_geo_graticuleX(Y0, Y1, 90);
	      Y = d3_geo_graticuleY(X0, X1, precision);
	      return graticule;
	    };
	    return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]);
	  };
	  function d3_geo_graticuleX(y0, y1, dy) {
	    var y = d3.range(y0, y1 - ε, dy).concat(y1);
	    return function(x) {
	      return y.map(function(y) {
	        return [ x, y ];
	      });
	    };
	  }
	  function d3_geo_graticuleY(x0, x1, dx) {
	    var x = d3.range(x0, x1 - ε, dx).concat(x1);
	    return function(y) {
	      return x.map(function(x) {
	        return [ x, y ];
	      });
	    };
	  }
	  function d3_source(d) {
	    return d.source;
	  }
	  function d3_target(d) {
	    return d.target;
	  }
	  d3.geo.greatArc = function() {
	    var source = d3_source, source_, target = d3_target, target_;
	    function greatArc() {
	      return {
	        type: "LineString",
	        coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ]
	      };
	    }
	    greatArc.distance = function() {
	      return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments));
	    };
	    greatArc.source = function(_) {
	      if (!arguments.length) return source;
	      source = _, source_ = typeof _ === "function" ? null : _;
	      return greatArc;
	    };
	    greatArc.target = function(_) {
	      if (!arguments.length) return target;
	      target = _, target_ = typeof _ === "function" ? null : _;
	      return greatArc;
	    };
	    greatArc.precision = function() {
	      return arguments.length ? greatArc : 0;
	    };
	    return greatArc;
	  };
	  d3.geo.interpolate = function(source, target) {
	    return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians);
	  };
	  function d3_geo_interpolate(x0, y0, x1, y1) {
	    var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d);
	    var interpolate = d ? function(t) {
	      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;
	      return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ];
	    } : function() {
	      return [ x0 * d3_degrees, y0 * d3_degrees ];
	    };
	    interpolate.distance = d;
	    return interpolate;
	  }
	  d3.geo.length = function(object) {
	    d3_geo_lengthSum = 0;
	    d3.geo.stream(object, d3_geo_length);
	    return d3_geo_lengthSum;
	  };
	  var d3_geo_lengthSum;
	  var d3_geo_length = {
	    sphere: d3_noop,
	    point: d3_noop,
	    lineStart: d3_geo_lengthLineStart,
	    lineEnd: d3_noop,
	    polygonStart: d3_noop,
	    polygonEnd: d3_noop
	  };
	  function d3_geo_lengthLineStart() {
	    var λ0, sinφ0, cosφ0;
	    d3_geo_length.point = function(λ, φ) {
	      λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ);
	      d3_geo_length.point = nextPoint;
	    };
	    d3_geo_length.lineEnd = function() {
	      d3_geo_length.point = d3_geo_length.lineEnd = d3_noop;
	    };
	    function nextPoint(λ, φ) {
	      var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t);
	      d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ);
	      λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ;
	    }
	  }
	  function d3_geo_azimuthal(scale, angle) {
	    function azimuthal(λ, φ) {
	      var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ);
	      return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ];
	    }
	    azimuthal.invert = function(x, y) {
	      var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c);
	      return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ];
	    };
	    return azimuthal;
	  }
	  var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) {
	    return Math.sqrt(2 / (1 + cosλcosφ));
	  }, function(ρ) {
	    return 2 * Math.asin(ρ / 2);
	  });
	  (d3.geo.azimuthalEqualArea = function() {
	    return d3_geo_projection(d3_geo_azimuthalEqualArea);
	  }).raw = d3_geo_azimuthalEqualArea;
	  var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) {
	    var c = Math.acos(cosλcosφ);
	    return c && c / Math.sin(c);
	  }, d3_identity);
	  (d3.geo.azimuthalEquidistant = function() {
	    return d3_geo_projection(d3_geo_azimuthalEquidistant);
	  }).raw = d3_geo_azimuthalEquidistant;
	  function d3_geo_conicConformal(φ0, φ1) {
	    var cosφ0 = Math.cos(φ0), t = function(φ) {
	      return Math.tan(π / 4 + φ / 2);
	    }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n;
	    if (!n) return d3_geo_mercator;
	    function forward(λ, φ) {
	      if (F > 0) {
	        if (φ < -halfπ + ε) φ = -halfπ + ε;
	      } else {
	        if (φ > halfπ - ε) φ = halfπ - ε;
	      }
	      var ρ = F / Math.pow(t(φ), n);
	      return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ];
	    }
	    forward.invert = function(x, y) {
	      var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y);
	      return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - halfπ ];
	    };
	    return forward;
	  }
	  (d3.geo.conicConformal = function() {
	    return d3_geo_conic(d3_geo_conicConformal);
	  }).raw = d3_geo_conicConformal;
	  function d3_geo_conicEquidistant(φ0, φ1) {
	    var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0;
	    if (abs(n) < ε) return d3_geo_equirectangular;
	    function forward(λ, φ) {
	      var ρ = G - φ;
	      return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ];
	    }
	    forward.invert = function(x, y) {
	      var ρ0_y = G - y;
	      return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ];
	    };
	    return forward;
	  }
	  (d3.geo.conicEquidistant = function() {
	    return d3_geo_conic(d3_geo_conicEquidistant);
	  }).raw = d3_geo_conicEquidistant;
	  var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) {
	    return 1 / cosλcosφ;
	  }, Math.atan);
	  (d3.geo.gnomonic = function() {
	    return d3_geo_projection(d3_geo_gnomonic);
	  }).raw = d3_geo_gnomonic;
	  function d3_geo_mercator(λ, φ) {
	    return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ];
	  }
	  d3_geo_mercator.invert = function(x, y) {
	    return [ x, 2 * Math.atan(Math.exp(y)) - halfπ ];
	  };
	  function d3_geo_mercatorProjection(project) {
	    var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto;
	    m.scale = function() {
	      var v = scale.apply(m, arguments);
	      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
	    };
	    m.translate = function() {
	      var v = translate.apply(m, arguments);
	      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
	    };
	    m.clipExtent = function(_) {
	      var v = clipExtent.apply(m, arguments);
	      if (v === m) {
	        if (clipAuto = _ == null) {
	          var k = π * scale(), t = translate();
	          clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]);
	        }
	      } else if (clipAuto) {
	        v = null;
	      }
	      return v;
	    };
	    return m.clipExtent(null);
	  }
	  (d3.geo.mercator = function() {
	    return d3_geo_mercatorProjection(d3_geo_mercator);
	  }).raw = d3_geo_mercator;
	  var d3_geo_orthographic = d3_geo_azimuthal(function() {
	    return 1;
	  }, Math.asin);
	  (d3.geo.orthographic = function() {
	    return d3_geo_projection(d3_geo_orthographic);
	  }).raw = d3_geo_orthographic;
	  var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {
	    return 1 / (1 + cosλcosφ);
	  }, function(ρ) {
	    return 2 * Math.atan(ρ);
	  });
	  (d3.geo.stereographic = function() {
	    return d3_geo_projection(d3_geo_stereographic);
	  }).raw = d3_geo_stereographic;
	  function d3_geo_transverseMercator(λ, φ) {
	    return [ Math.log(Math.tan(π / 4 + φ / 2)), -λ ];
	  }
	  d3_geo_transverseMercator.invert = function(x, y) {
	    return [ -y, 2 * Math.atan(Math.exp(x)) - halfπ ];
	  };
	  (d3.geo.transverseMercator = function() {
	    var projection = d3_geo_mercatorProjection(d3_geo_transverseMercator), center = projection.center, rotate = projection.rotate;
	    projection.center = function(_) {
	      return _ ? center([ -_[1], _[0] ]) : (_ = center(), [ _[1], -_[0] ]);
	    };
	    projection.rotate = function(_) {
	      return _ ? rotate([ _[0], _[1], _.length > 2 ? _[2] + 90 : 90 ]) : (_ = rotate(), 
	      [ _[0], _[1], _[2] - 90 ]);
	    };
	    return rotate([ 0, 0, 90 ]);
	  }).raw = d3_geo_transverseMercator;
	  d3.geom = {};
	  function d3_geom_pointX(d) {
	    return d[0];
	  }
	  function d3_geom_pointY(d) {
	    return d[1];
	  }
	  d3.geom.hull = function(vertices) {
	    var x = d3_geom_pointX, y = d3_geom_pointY;
	    if (arguments.length) return hull(vertices);
	    function hull(data) {
	      if (data.length < 3) return [];
	      var fx = d3_functor(x), fy = d3_functor(y), i, n = data.length, points = [], flippedPoints = [];
	      for (i = 0; i < n; i++) {
	        points.push([ +fx.call(this, data[i], i), +fy.call(this, data[i], i), i ]);
	      }
	      points.sort(d3_geom_hullOrder);
	      for (i = 0; i < n; i++) flippedPoints.push([ points[i][0], -points[i][1] ]);
	      var upper = d3_geom_hullUpper(points), lower = d3_geom_hullUpper(flippedPoints);
	      var skipLeft = lower[0] === upper[0], skipRight = lower[lower.length - 1] === upper[upper.length - 1], polygon = [];
	      for (i = upper.length - 1; i >= 0; --i) polygon.push(data[points[upper[i]][2]]);
	      for (i = +skipLeft; i < lower.length - skipRight; ++i) polygon.push(data[points[lower[i]][2]]);
	      return polygon;
	    }
	    hull.x = function(_) {
	      return arguments.length ? (x = _, hull) : x;
	    };
	    hull.y = function(_) {
	      return arguments.length ? (y = _, hull) : y;
	    };
	    return hull;
	  };
	  function d3_geom_hullUpper(points) {
	    var n = points.length, hull = [ 0, 1 ], hs = 2;
	    for (var i = 2; i < n; i++) {
	      while (hs > 1 && d3_cross2d(points[hull[hs - 2]], points[hull[hs - 1]], points[i]) <= 0) --hs;
	      hull[hs++] = i;
	    }
	    return hull.slice(0, hs);
	  }
	  function d3_geom_hullOrder(a, b) {
	    return a[0] - b[0] || a[1] - b[1];
	  }
	  d3.geom.polygon = function(coordinates) {
	    d3_subclass(coordinates, d3_geom_polygonPrototype);
	    return coordinates;
	  };
	  var d3_geom_polygonPrototype = d3.geom.polygon.prototype = [];
	  d3_geom_polygonPrototype.area = function() {
	    var i = -1, n = this.length, a, b = this[n - 1], area = 0;
	    while (++i < n) {
	      a = b;
	      b = this[i];
	      area += a[1] * b[0] - a[0] * b[1];
	    }
	    return area * .5;
	  };
	  d3_geom_polygonPrototype.centroid = function(k) {
	    var i = -1, n = this.length, x = 0, y = 0, a, b = this[n - 1], c;
	    if (!arguments.length) k = -1 / (6 * this.area());
	    while (++i < n) {
	      a = b;
	      b = this[i];
	      c = a[0] * b[1] - b[0] * a[1];
	      x += (a[0] + b[0]) * c;
	      y += (a[1] + b[1]) * c;
	    }
	    return [ x * k, y * k ];
	  };
	  d3_geom_polygonPrototype.clip = function(subject) {
	    var input, closed = d3_geom_polygonClosed(subject), i = -1, n = this.length - d3_geom_polygonClosed(this), j, m, a = this[n - 1], b, c, d;
	    while (++i < n) {
	      input = subject.slice();
	      subject.length = 0;
	      b = this[i];
	      c = input[(m = input.length - closed) - 1];
	      j = -1;
	      while (++j < m) {
	        d = input[j];
	        if (d3_geom_polygonInside(d, a, b)) {
	          if (!d3_geom_polygonInside(c, a, b)) {
	            subject.push(d3_geom_polygonIntersect(c, d, a, b));
	          }
	          subject.push(d);
	        } else if (d3_geom_polygonInside(c, a, b)) {
	          subject.push(d3_geom_polygonIntersect(c, d, a, b));
	        }
	        c = d;
	      }
	      if (closed) subject.push(subject[0]);
	      a = b;
	    }
	    return subject;
	  };
	  function d3_geom_polygonInside(p, a, b) {
	    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
	  }
	  function d3_geom_polygonIntersect(c, d, a, b) {
	    var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21);
	    return [ x1 + ua * x21, y1 + ua * y21 ];
	  }
	  function d3_geom_polygonClosed(coordinates) {
	    var a = coordinates[0], b = coordinates[coordinates.length - 1];
	    return !(a[0] - b[0] || a[1] - b[1]);
	  }
	  var d3_geom_voronoiEdges, d3_geom_voronoiCells, d3_geom_voronoiBeaches, d3_geom_voronoiBeachPool = [], d3_geom_voronoiFirstCircle, d3_geom_voronoiCircles, d3_geom_voronoiCirclePool = [];
	  function d3_geom_voronoiBeach() {
	    d3_geom_voronoiRedBlackNode(this);
	    this.edge = this.site = this.circle = null;
	  }
	  function d3_geom_voronoiCreateBeach(site) {
	    var beach = d3_geom_voronoiBeachPool.pop() || new d3_geom_voronoiBeach();
	    beach.site = site;
	    return beach;
	  }
	  function d3_geom_voronoiDetachBeach(beach) {
	    d3_geom_voronoiDetachCircle(beach);
	    d3_geom_voronoiBeaches.remove(beach);
	    d3_geom_voronoiBeachPool.push(beach);
	    d3_geom_voronoiRedBlackNode(beach);
	  }
	  function d3_geom_voronoiRemoveBeach(beach) {
	    var circle = beach.circle, x = circle.x, y = circle.cy, vertex = {
	      x: x,
	      y: y
	    }, previous = beach.P, next = beach.N, disappearing = [ beach ];
	    d3_geom_voronoiDetachBeach(beach);
	    var lArc = previous;
	    while (lArc.circle && abs(x - lArc.circle.x) < ε && abs(y - lArc.circle.cy) < ε) {
	      previous = lArc.P;
	      disappearing.unshift(lArc);
	      d3_geom_voronoiDetachBeach(lArc);
	      lArc = previous;
	    }
	    disappearing.unshift(lArc);
	    d3_geom_voronoiDetachCircle(lArc);
	    var rArc = next;
	    while (rArc.circle && abs(x - rArc.circle.x) < ε && abs(y - rArc.circle.cy) < ε) {
	      next = rArc.N;
	      disappearing.push(rArc);
	      d3_geom_voronoiDetachBeach(rArc);
	      rArc = next;
	    }
	    disappearing.push(rArc);
	    d3_geom_voronoiDetachCircle(rArc);
	    var nArcs = disappearing.length, iArc;
	    for (iArc = 1; iArc < nArcs; ++iArc) {
	      rArc = disappearing[iArc];
	      lArc = disappearing[iArc - 1];
	      d3_geom_voronoiSetEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);
	    }
	    lArc = disappearing[0];
	    rArc = disappearing[nArcs - 1];
	    rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, rArc.site, null, vertex);
	    d3_geom_voronoiAttachCircle(lArc);
	    d3_geom_voronoiAttachCircle(rArc);
	  }
	  function d3_geom_voronoiAddBeach(site) {
	    var x = site.x, directrix = site.y, lArc, rArc, dxl, dxr, node = d3_geom_voronoiBeaches._;
	    while (node) {
	      dxl = d3_geom_voronoiLeftBreakPoint(node, directrix) - x;
	      if (dxl > ε) node = node.L; else {
	        dxr = x - d3_geom_voronoiRightBreakPoint(node, directrix);
	        if (dxr > ε) {
	          if (!node.R) {
	            lArc = node;
	            break;
	          }
	          node = node.R;
	        } else {
	          if (dxl > -ε) {
	            lArc = node.P;
	            rArc = node;
	          } else if (dxr > -ε) {
	            lArc = node;
	            rArc = node.N;
	          } else {
	            lArc = rArc = node;
	          }
	          break;
	        }
	      }
	    }
	    var newArc = d3_geom_voronoiCreateBeach(site);
	    d3_geom_voronoiBeaches.insert(lArc, newArc);
	    if (!lArc && !rArc) return;
	    if (lArc === rArc) {
	      d3_geom_voronoiDetachCircle(lArc);
	      rArc = d3_geom_voronoiCreateBeach(lArc.site);
	      d3_geom_voronoiBeaches.insert(newArc, rArc);
	      newArc.edge = rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
	      d3_geom_voronoiAttachCircle(lArc);
	      d3_geom_voronoiAttachCircle(rArc);
	      return;
	    }
	    if (!rArc) {
	      newArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
	      return;
	    }
	    d3_geom_voronoiDetachCircle(lArc);
	    d3_geom_voronoiDetachCircle(rArc);
	    var lSite = lArc.site, ax = lSite.x, ay = lSite.y, bx = site.x - ax, by = site.y - ay, rSite = rArc.site, cx = rSite.x - ax, cy = rSite.y - ay, d = 2 * (bx * cy - by * cx), hb = bx * bx + by * by, hc = cx * cx + cy * cy, vertex = {
	      x: (cy * hb - by * hc) / d + ax,
	      y: (bx * hc - cx * hb) / d + ay
	    };
	    d3_geom_voronoiSetEdgeEnd(rArc.edge, lSite, rSite, vertex);
	    newArc.edge = d3_geom_voronoiCreateEdge(lSite, site, null, vertex);
	    rArc.edge = d3_geom_voronoiCreateEdge(site, rSite, null, vertex);
	    d3_geom_voronoiAttachCircle(lArc);
	    d3_geom_voronoiAttachCircle(rArc);
	  }
	  function d3_geom_voronoiLeftBreakPoint(arc, directrix) {
	    var site = arc.site, rfocx = site.x, rfocy = site.y, pby2 = rfocy - directrix;
	    if (!pby2) return rfocx;
	    var lArc = arc.P;
	    if (!lArc) return -Infinity;
	    site = lArc.site;
	    var lfocx = site.x, lfocy = site.y, plby2 = lfocy - directrix;
	    if (!plby2) return lfocx;
	    var hl = lfocx - rfocx, aby2 = 1 / pby2 - 1 / plby2, b = hl / plby2;
	    if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;
	    return (rfocx + lfocx) / 2;
	  }
	  function d3_geom_voronoiRightBreakPoint(arc, directrix) {
	    var rArc = arc.N;
	    if (rArc) return d3_geom_voronoiLeftBreakPoint(rArc, directrix);
	    var site = arc.site;
	    return site.y === directrix ? site.x : Infinity;
	  }
	  function d3_geom_voronoiCell(site) {
	    this.site = site;
	    this.edges = [];
	  }
	  d3_geom_voronoiCell.prototype.prepare = function() {
	    var halfEdges = this.edges, iHalfEdge = halfEdges.length, edge;
	    while (iHalfEdge--) {
	      edge = halfEdges[iHalfEdge].edge;
	      if (!edge.b || !edge.a) halfEdges.splice(iHalfEdge, 1);
	    }
	    halfEdges.sort(d3_geom_voronoiHalfEdgeOrder);
	    return halfEdges.length;
	  };
	  function d3_geom_voronoiCloseCells(extent) {
	    var x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], x2, y2, x3, y3, cells = d3_geom_voronoiCells, iCell = cells.length, cell, iHalfEdge, halfEdges, nHalfEdges, start, end;
	    while (iCell--) {
	      cell = cells[iCell];
	      if (!cell || !cell.prepare()) continue;
	      halfEdges = cell.edges;
	      nHalfEdges = halfEdges.length;
	      iHalfEdge = 0;
	      while (iHalfEdge < nHalfEdges) {
	        end = halfEdges[iHalfEdge].end(), x3 = end.x, y3 = end.y;
	        start = halfEdges[++iHalfEdge % nHalfEdges].start(), x2 = start.x, y2 = start.y;
	        if (abs(x3 - x2) > ε || abs(y3 - y2) > ε) {
	          halfEdges.splice(iHalfEdge, 0, new d3_geom_voronoiHalfEdge(d3_geom_voronoiCreateBorderEdge(cell.site, end, abs(x3 - x0) < ε && y1 - y3 > ε ? {
	            x: x0,
	            y: abs(x2 - x0) < ε ? y2 : y1
	          } : abs(y3 - y1) < ε && x1 - x3 > ε ? {
	            x: abs(y2 - y1) < ε ? x2 : x1,
	            y: y1
	          } : abs(x3 - x1) < ε && y3 - y0 > ε ? {
	            x: x1,
	            y: abs(x2 - x1) < ε ? y2 : y0
	          } : abs(y3 - y0) < ε && x3 - x0 > ε ? {
	            x: abs(y2 - y0) < ε ? x2 : x0,
	            y: y0
	          } : null), cell.site, null));
	          ++nHalfEdges;
	        }
	      }
	    }
	  }
	  function d3_geom_voronoiHalfEdgeOrder(a, b) {
	    return b.angle - a.angle;
	  }
	  function d3_geom_voronoiCircle() {
	    d3_geom_voronoiRedBlackNode(this);
	    this.x = this.y = this.arc = this.site = this.cy = null;
	  }
	  function d3_geom_voronoiAttachCircle(arc) {
	    var lArc = arc.P, rArc = arc.N;
	    if (!lArc || !rArc) return;
	    var lSite = lArc.site, cSite = arc.site, rSite = rArc.site;
	    if (lSite === rSite) return;
	    var bx = cSite.x, by = cSite.y, ax = lSite.x - bx, ay = lSite.y - by, cx = rSite.x - bx, cy = rSite.y - by;
	    var d = 2 * (ax * cy - ay * cx);
	    if (d >= -ε2) return;
	    var ha = ax * ax + ay * ay, hc = cx * cx + cy * cy, x = (cy * ha - ay * hc) / d, y = (ax * hc - cx * ha) / d, cy = y + by;
	    var circle = d3_geom_voronoiCirclePool.pop() || new d3_geom_voronoiCircle();
	    circle.arc = arc;
	    circle.site = cSite;
	    circle.x = x + bx;
	    circle.y = cy + Math.sqrt(x * x + y * y);
	    circle.cy = cy;
	    arc.circle = circle;
	    var before = null, node = d3_geom_voronoiCircles._;
	    while (node) {
	      if (circle.y < node.y || circle.y === node.y && circle.x <= node.x) {
	        if (node.L) node = node.L; else {
	          before = node.P;
	          break;
	        }
	      } else {
	        if (node.R) node = node.R; else {
	          before = node;
	          break;
	        }
	      }
	    }
	    d3_geom_voronoiCircles.insert(before, circle);
	    if (!before) d3_geom_voronoiFirstCircle = circle;
	  }
	  function d3_geom_voronoiDetachCircle(arc) {
	    var circle = arc.circle;
	    if (circle) {
	      if (!circle.P) d3_geom_voronoiFirstCircle = circle.N;
	      d3_geom_voronoiCircles.remove(circle);
	      d3_geom_voronoiCirclePool.push(circle);
	      d3_geom_voronoiRedBlackNode(circle);
	      arc.circle = null;
	    }
	  }
	  function d3_geom_voronoiClipEdges(extent) {
	    var edges = d3_geom_voronoiEdges, clip = d3_geom_clipLine(extent[0][0], extent[0][1], extent[1][0], extent[1][1]), i = edges.length, e;
	    while (i--) {
	      e = edges[i];
	      if (!d3_geom_voronoiConnectEdge(e, extent) || !clip(e) || abs(e.a.x - e.b.x) < ε && abs(e.a.y - e.b.y) < ε) {
	        e.a = e.b = null;
	        edges.splice(i, 1);
	      }
	    }
	  }
	  function d3_geom_voronoiConnectEdge(edge, extent) {
	    var vb = edge.b;
	    if (vb) return true;
	    var va = edge.a, x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], lSite = edge.l, rSite = edge.r, lx = lSite.x, ly = lSite.y, rx = rSite.x, ry = rSite.y, fx = (lx + rx) / 2, fy = (ly + ry) / 2, fm, fb;
	    if (ry === ly) {
	      if (fx < x0 || fx >= x1) return;
	      if (lx > rx) {
	        if (!va) va = {
	          x: fx,
	          y: y0
	        }; else if (va.y >= y1) return;
	        vb = {
	          x: fx,
	          y: y1
	        };
	      } else {
	        if (!va) va = {
	          x: fx,
	          y: y1
	        }; else if (va.y < y0) return;
	        vb = {
	          x: fx,
	          y: y0
	        };
	      }
	    } else {
	      fm = (lx - rx) / (ry - ly);
	      fb = fy - fm * fx;
	      if (fm < -1 || fm > 1) {
	        if (lx > rx) {
	          if (!va) va = {
	            x: (y0 - fb) / fm,
	            y: y0
	          }; else if (va.y >= y1) return;
	          vb = {
	            x: (y1 - fb) / fm,
	            y: y1
	          };
	        } else {
	          if (!va) va = {
	            x: (y1 - fb) / fm,
	            y: y1
	          }; else if (va.y < y0) return;
	          vb = {
	            x: (y0 - fb) / fm,
	            y: y0
	          };
	        }
	      } else {
	        if (ly < ry) {
	          if (!va) va = {
	            x: x0,
	            y: fm * x0 + fb
	          }; else if (va.x >= x1) return;
	          vb = {
	            x: x1,
	            y: fm * x1 + fb
	          };
	        } else {
	          if (!va) va = {
	            x: x1,
	            y: fm * x1 + fb
	          }; else if (va.x < x0) return;
	          vb = {
	            x: x0,
	            y: fm * x0 + fb
	          };
	        }
	      }
	    }
	    edge.a = va;
	    edge.b = vb;
	    return true;
	  }
	  function d3_geom_voronoiEdge(lSite, rSite) {
	    this.l = lSite;
	    this.r = rSite;
	    this.a = this.b = null;
	  }
	  function d3_geom_voronoiCreateEdge(lSite, rSite, va, vb) {
	    var edge = new d3_geom_voronoiEdge(lSite, rSite);
	    d3_geom_voronoiEdges.push(edge);
	    if (va) d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, va);
	    if (vb) d3_geom_voronoiSetEdgeEnd(edge, rSite, lSite, vb);
	    d3_geom_voronoiCells[lSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, lSite, rSite));
	    d3_geom_voronoiCells[rSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, rSite, lSite));
	    return edge;
	  }
	  function d3_geom_voronoiCreateBorderEdge(lSite, va, vb) {
	    var edge = new d3_geom_voronoiEdge(lSite, null);
	    edge.a = va;
	    edge.b = vb;
	    d3_geom_voronoiEdges.push(edge);
	    return edge;
	  }
	  function d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, vertex) {
	    if (!edge.a && !edge.b) {
	      edge.a = vertex;
	      edge.l = lSite;
	      edge.r = rSite;
	    } else if (edge.l === rSite) {
	      edge.b = vertex;
	    } else {
	      edge.a = vertex;
	    }
	  }
	  function d3_geom_voronoiHalfEdge(edge, lSite, rSite) {
	    var va = edge.a, vb = edge.b;
	    this.edge = edge;
	    this.site = lSite;
	    this.angle = rSite ? Math.atan2(rSite.y - lSite.y, rSite.x - lSite.x) : edge.l === lSite ? Math.atan2(vb.x - va.x, va.y - vb.y) : Math.atan2(va.x - vb.x, vb.y - va.y);
	  }
	  d3_geom_voronoiHalfEdge.prototype = {
	    start: function() {
	      return this.edge.l === this.site ? this.edge.a : this.edge.b;
	    },
	    end: function() {
	      return this.edge.l === this.site ? this.edge.b : this.edge.a;
	    }
	  };
	  function d3_geom_voronoiRedBlackTree() {
	    this._ = null;
	  }
	  function d3_geom_voronoiRedBlackNode(node) {
	    node.U = node.C = node.L = node.R = node.P = node.N = null;
	  }
	  d3_geom_voronoiRedBlackTree.prototype = {
	    insert: function(after, node) {
	      var parent, grandpa, uncle;
	      if (after) {
	        node.P = after;
	        node.N = after.N;
	        if (after.N) after.N.P = node;
	        after.N = node;
	        if (after.R) {
	          after = after.R;
	          while (after.L) after = after.L;
	          after.L = node;
	        } else {
	          after.R = node;
	        }
	        parent = after;
	      } else if (this._) {
	        after = d3_geom_voronoiRedBlackFirst(this._);
	        node.P = null;
	        node.N = after;
	        after.P = after.L = node;
	        parent = after;
	      } else {
	        node.P = node.N = null;
	        this._ = node;
	        parent = null;
	      }
	      node.L = node.R = null;
	      node.U = parent;
	      node.C = true;
	      after = node;
	      while (parent && parent.C) {
	        grandpa = parent.U;
	        if (parent === grandpa.L) {
	          uncle = grandpa.R;
	          if (uncle && uncle.C) {
	            parent.C = uncle.C = false;
	            grandpa.C = true;
	            after = grandpa;
	          } else {
	            if (after === parent.R) {
	              d3_geom_voronoiRedBlackRotateLeft(this, parent);
	              after = parent;
	              parent = after.U;
	            }
	            parent.C = false;
	            grandpa.C = true;
	            d3_geom_voronoiRedBlackRotateRight(this, grandpa);
	          }
	        } else {
	          uncle = grandpa.L;
	          if (uncle && uncle.C) {
	            parent.C = uncle.C = false;
	            grandpa.C = true;
	            after = grandpa;
	          } else {
	            if (after === parent.L) {
	              d3_geom_voronoiRedBlackRotateRight(this, parent);
	              after = parent;
	              parent = after.U;
	            }
	            parent.C = false;
	            grandpa.C = true;
	            d3_geom_voronoiRedBlackRotateLeft(this, grandpa);
	          }
	        }
	        parent = after.U;
	      }
	      this._.C = false;
	    },
	    remove: function(node) {
	      if (node.N) node.N.P = node.P;
	      if (node.P) node.P.N = node.N;
	      node.N = node.P = null;
	      var parent = node.U, sibling, left = node.L, right = node.R, next, red;
	      if (!left) next = right; else if (!right) next = left; else next = d3_geom_voronoiRedBlackFirst(right);
	      if (parent) {
	        if (parent.L === node) parent.L = next; else parent.R = next;
	      } else {
	        this._ = next;
	      }
	      if (left && right) {
	        red = next.C;
	        next.C = node.C;
	        next.L = left;
	        left.U = next;
	        if (next !== right) {
	          parent = next.U;
	          next.U = node.U;
	          node = next.R;
	          parent.L = node;
	          next.R = right;
	          right.U = next;
	        } else {
	          next.U = parent;
	          parent = next;
	          node = next.R;
	        }
	      } else {
	        red = node.C;
	        node = next;
	      }
	      if (node) node.U = parent;
	      if (red) return;
	      if (node && node.C) {
	        node.C = false;
	        return;
	      }
	      do {
	        if (node === this._) break;
	        if (node === parent.L) {
	          sibling = parent.R;
	          if (sibling.C) {
	            sibling.C = false;
	            parent.C = true;
	            d3_geom_voronoiRedBlackRotateLeft(this, parent);
	            sibling = parent.R;
	          }
	          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
	            if (!sibling.R || !sibling.R.C) {
	              sibling.L.C = false;
	              sibling.C = true;
	              d3_geom_voronoiRedBlackRotateRight(this, sibling);
	              sibling = parent.R;
	            }
	            sibling.C = parent.C;
	            parent.C = sibling.R.C = false;
	            d3_geom_voronoiRedBlackRotateLeft(this, parent);
	            node = this._;
	            break;
	          }
	        } else {
	          sibling = parent.L;
	          if (sibling.C) {
	            sibling.C = false;
	            parent.C = true;
	            d3_geom_voronoiRedBlackRotateRight(this, parent);
	            sibling = parent.L;
	          }
	          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
	            if (!sibling.L || !sibling.L.C) {
	              sibling.R.C = false;
	              sibling.C = true;
	              d3_geom_voronoiRedBlackRotateLeft(this, sibling);
	              sibling = parent.L;
	            }
	            sibling.C = parent.C;
	            parent.C = sibling.L.C = false;
	            d3_geom_voronoiRedBlackRotateRight(this, parent);
	            node = this._;
	            break;
	          }
	        }
	        sibling.C = true;
	        node = parent;
	        parent = parent.U;
	      } while (!node.C);
	      if (node) node.C = false;
	    }
	  };
	  function d3_geom_voronoiRedBlackRotateLeft(tree, node) {
	    var p = node, q = node.R, parent = p.U;
	    if (parent) {
	      if (parent.L === p) parent.L = q; else parent.R = q;
	    } else {
	      tree._ = q;
	    }
	    q.U = parent;
	    p.U = q;
	    p.R = q.L;
	    if (p.R) p.R.U = p;
	    q.L = p;
	  }
	  function d3_geom_voronoiRedBlackRotateRight(tree, node) {
	    var p = node, q = node.L, parent = p.U;
	    if (parent) {
	      if (parent.L === p) parent.L = q; else parent.R = q;
	    } else {
	      tree._ = q;
	    }
	    q.U = parent;
	    p.U = q;
	    p.L = q.R;
	    if (p.L) p.L.U = p;
	    q.R = p;
	  }
	  function d3_geom_voronoiRedBlackFirst(node) {
	    while (node.L) node = node.L;
	    return node;
	  }
	  function d3_geom_voronoi(sites, bbox) {
	    var site = sites.sort(d3_geom_voronoiVertexOrder).pop(), x0, y0, circle;
	    d3_geom_voronoiEdges = [];
	    d3_geom_voronoiCells = new Array(sites.length);
	    d3_geom_voronoiBeaches = new d3_geom_voronoiRedBlackTree();
	    d3_geom_voronoiCircles = new d3_geom_voronoiRedBlackTree();
	    while (true) {
	      circle = d3_geom_voronoiFirstCircle;
	      if (site && (!circle || site.y < circle.y || site.y === circle.y && site.x < circle.x)) {
	        if (site.x !== x0 || site.y !== y0) {
	          d3_geom_voronoiCells[site.i] = new d3_geom_voronoiCell(site);
	          d3_geom_voronoiAddBeach(site);
	          x0 = site.x, y0 = site.y;
	        }
	        site = sites.pop();
	      } else if (circle) {
	        d3_geom_voronoiRemoveBeach(circle.arc);
	      } else {
	        break;
	      }
	    }
	    if (bbox) d3_geom_voronoiClipEdges(bbox), d3_geom_voronoiCloseCells(bbox);
	    var diagram = {
	      cells: d3_geom_voronoiCells,
	      edges: d3_geom_voronoiEdges
	    };
	    d3_geom_voronoiBeaches = d3_geom_voronoiCircles = d3_geom_voronoiEdges = d3_geom_voronoiCells = null;
	    return diagram;
	  }
	  function d3_geom_voronoiVertexOrder(a, b) {
	    return b.y - a.y || b.x - a.x;
	  }
	  d3.geom.voronoi = function(points) {
	    var x = d3_geom_pointX, y = d3_geom_pointY, fx = x, fy = y, clipExtent = d3_geom_voronoiClipExtent;
	    if (points) return voronoi(points);
	    function voronoi(data) {
	      var polygons = new Array(data.length), x0 = clipExtent[0][0], y0 = clipExtent[0][1], x1 = clipExtent[1][0], y1 = clipExtent[1][1];
	      d3_geom_voronoi(sites(data), clipExtent).cells.forEach(function(cell, i) {
	        var edges = cell.edges, site = cell.site, polygon = polygons[i] = edges.length ? edges.map(function(e) {
	          var s = e.start();
	          return [ s.x, s.y ];
	        }) : site.x >= x0 && site.x <= x1 && site.y >= y0 && site.y <= y1 ? [ [ x0, y1 ], [ x1, y1 ], [ x1, y0 ], [ x0, y0 ] ] : [];
	        polygon.point = data[i];
	      });
	      return polygons;
	    }
	    function sites(data) {
	      return data.map(function(d, i) {
	        return {
	          x: Math.round(fx(d, i) / ε) * ε,
	          y: Math.round(fy(d, i) / ε) * ε,
	          i: i
	        };
	      });
	    }
	    voronoi.links = function(data) {
	      return d3_geom_voronoi(sites(data)).edges.filter(function(edge) {
	        return edge.l && edge.r;
	      }).map(function(edge) {
	        return {
	          source: data[edge.l.i],
	          target: data[edge.r.i]
	        };
	      });
	    };
	    voronoi.triangles = function(data) {
	      var triangles = [];
	      d3_geom_voronoi(sites(data)).cells.forEach(function(cell, i) {
	        var site = cell.site, edges = cell.edges.sort(d3_geom_voronoiHalfEdgeOrder), j = -1, m = edges.length, s0, e1 = edges[m - 1].edge, s1 = e1.l === site ? e1.r : e1.l;
	        while (++j < m) {
	          s0 = s1;
	          e1 = edges[j].edge;
	          s1 = e1.l === site ? e1.r : e1.l;
	          if (i < s0.i && i < s1.i && d3_geom_voronoiTriangleArea(site, s0, s1) < 0) {
	            triangles.push([ data[i], data[s0.i], data[s1.i] ]);
	          }
	        }
	      });
	      return triangles;
	    };
	    voronoi.x = function(_) {
	      return arguments.length ? (fx = d3_functor(x = _), voronoi) : x;
	    };
	    voronoi.y = function(_) {
	      return arguments.length ? (fy = d3_functor(y = _), voronoi) : y;
	    };
	    voronoi.clipExtent = function(_) {
	      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent;
	      clipExtent = _ == null ? d3_geom_voronoiClipExtent : _;
	      return voronoi;
	    };
	    voronoi.size = function(_) {
	      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent && clipExtent[1];
	      return voronoi.clipExtent(_ && [ [ 0, 0 ], _ ]);
	    };
	    return voronoi;
	  };
	  var d3_geom_voronoiClipExtent = [ [ -1e6, -1e6 ], [ 1e6, 1e6 ] ];
	  function d3_geom_voronoiTriangleArea(a, b, c) {
	    return (a.x - c.x) * (b.y - a.y) - (a.x - b.x) * (c.y - a.y);
	  }
	  d3.geom.delaunay = function(vertices) {
	    return d3.geom.voronoi().triangles(vertices);
	  };
	  d3.geom.quadtree = function(points, x1, y1, x2, y2) {
	    var x = d3_geom_pointX, y = d3_geom_pointY, compat;
	    if (compat = arguments.length) {
	      x = d3_geom_quadtreeCompatX;
	      y = d3_geom_quadtreeCompatY;
	      if (compat === 3) {
	        y2 = y1;
	        x2 = x1;
	        y1 = x1 = 0;
	      }
	      return quadtree(points);
	    }
	    function quadtree(data) {
	      var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_;
	      if (x1 != null) {
	        x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2;
	      } else {
	        x2_ = y2_ = -(x1_ = y1_ = Infinity);
	        xs = [], ys = [];
	        n = data.length;
	        if (compat) for (i = 0; i < n; ++i) {
	          d = data[i];
	          if (d.x < x1_) x1_ = d.x;
	          if (d.y < y1_) y1_ = d.y;
	          if (d.x > x2_) x2_ = d.x;
	          if (d.y > y2_) y2_ = d.y;
	          xs.push(d.x);
	          ys.push(d.y);
	        } else for (i = 0; i < n; ++i) {
	          var x_ = +fx(d = data[i], i), y_ = +fy(d, i);
	          if (x_ < x1_) x1_ = x_;
	          if (y_ < y1_) y1_ = y_;
	          if (x_ > x2_) x2_ = x_;
	          if (y_ > y2_) y2_ = y_;
	          xs.push(x_);
	          ys.push(y_);
	        }
	      }
	      var dx = x2_ - x1_, dy = y2_ - y1_;
	      if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy;
	      function insert(n, d, x, y, x1, y1, x2, y2) {
	        if (isNaN(x) || isNaN(y)) return;
	        if (n.leaf) {
	          var nx = n.x, ny = n.y;
	          if (nx != null) {
	            if (abs(nx - x) + abs(ny - y) < .01) {
	              insertChild(n, d, x, y, x1, y1, x2, y2);
	            } else {
	              var nPoint = n.point;
	              n.x = n.y = n.point = null;
	              insertChild(n, nPoint, nx, ny, x1, y1, x2, y2);
	              insertChild(n, d, x, y, x1, y1, x2, y2);
	            }
	          } else {
	            n.x = x, n.y = y, n.point = d;
	          }
	        } else {
	          insertChild(n, d, x, y, x1, y1, x2, y2);
	        }
	      }
	      function insertChild(n, d, x, y, x1, y1, x2, y2) {
	        var xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym, i = below << 1 | right;
	        n.leaf = false;
	        n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
	        if (right) x1 = xm; else x2 = xm;
	        if (below) y1 = ym; else y2 = ym;
	        insert(n, d, x, y, x1, y1, x2, y2);
	      }
	      var root = d3_geom_quadtreeNode();
	      root.add = function(d) {
	        insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_);
	      };
	      root.visit = function(f) {
	        d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_);
	      };
	      root.find = function(point) {
	        return d3_geom_quadtreeFind(root, point[0], point[1], x1_, y1_, x2_, y2_);
	      };
	      i = -1;
	      if (x1 == null) {
	        while (++i < n) {
	          insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_);
	        }
	        --i;
	      } else data.forEach(root.add);
	      xs = ys = data = d = null;
	      return root;
	    }
	    quadtree.x = function(_) {
	      return arguments.length ? (x = _, quadtree) : x;
	    };
	    quadtree.y = function(_) {
	      return arguments.length ? (y = _, quadtree) : y;
	    };
	    quadtree.extent = function(_) {
	      if (!arguments.length) return x1 == null ? null : [ [ x1, y1 ], [ x2, y2 ] ];
	      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = +_[0][0], y1 = +_[0][1], x2 = +_[1][0], 
	      y2 = +_[1][1];
	      return quadtree;
	    };
	    quadtree.size = function(_) {
	      if (!arguments.length) return x1 == null ? null : [ x2 - x1, y2 - y1 ];
	      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = y1 = 0, x2 = +_[0], y2 = +_[1];
	      return quadtree;
	    };
	    return quadtree;
	  };
	  function d3_geom_quadtreeCompatX(d) {
	    return d.x;
	  }
	  function d3_geom_quadtreeCompatY(d) {
	    return d.y;
	  }
	  function d3_geom_quadtreeNode() {
	    return {
	      leaf: true,
	      nodes: [],
	      point: null,
	      x: null,
	      y: null
	    };
	  }
	  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
	    if (!f(node, x1, y1, x2, y2)) {
	      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;
	      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
	      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
	      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
	      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
	    }
	  }
	  function d3_geom_quadtreeFind(root, x, y, x0, y0, x3, y3) {
	    var minDistance2 = Infinity, closestPoint;
	    (function find(node, x1, y1, x2, y2) {
	      if (x1 > x3 || y1 > y3 || x2 < x0 || y2 < y0) return;
	      if (point = node.point) {
	        var point, dx = x - node.x, dy = y - node.y, distance2 = dx * dx + dy * dy;
	        if (distance2 < minDistance2) {
	          var distance = Math.sqrt(minDistance2 = distance2);
	          x0 = x - distance, y0 = y - distance;
	          x3 = x + distance, y3 = y + distance;
	          closestPoint = point;
	        }
	      }
	      var children = node.nodes, xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym;
	      for (var i = below << 1 | right, j = i + 4; i < j; ++i) {
	        if (node = children[i & 3]) switch (i & 3) {
	         case 0:
	          find(node, x1, y1, xm, ym);
	          break;

	         case 1:
	          find(node, xm, y1, x2, ym);
	          break;

	         case 2:
	          find(node, x1, ym, xm, y2);
	          break;

	         case 3:
	          find(node, xm, ym, x2, y2);
	          break;
	        }
	      }
	    })(root, x0, y0, x3, y3);
	    return closestPoint;
	  }
	  d3.interpolateRgb = d3_interpolateRgb;
	  function d3_interpolateRgb(a, b) {
	    a = d3.rgb(a);
	    b = d3.rgb(b);
	    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;
	    return function(t) {
	      return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));
	    };
	  }
	  d3.interpolateObject = d3_interpolateObject;
	  function d3_interpolateObject(a, b) {
	    var i = {}, c = {}, k;
	    for (k in a) {
	      if (k in b) {
	        i[k] = d3_interpolate(a[k], b[k]);
	      } else {
	        c[k] = a[k];
	      }
	    }
	    for (k in b) {
	      if (!(k in a)) {
	        c[k] = b[k];
	      }
	    }
	    return function(t) {
	      for (k in i) c[k] = i[k](t);
	      return c;
	    };
	  }
	  d3.interpolateNumber = d3_interpolateNumber;
	  function d3_interpolateNumber(a, b) {
	    a = +a, b = +b;
	    return function(t) {
	      return a * (1 - t) + b * t;
	    };
	  }
	  d3.interpolateString = d3_interpolateString;
	  function d3_interpolateString(a, b) {
	    var bi = d3_interpolate_numberA.lastIndex = d3_interpolate_numberB.lastIndex = 0, am, bm, bs, i = -1, s = [], q = [];
	    a = a + "", b = b + "";
	    while ((am = d3_interpolate_numberA.exec(a)) && (bm = d3_interpolate_numberB.exec(b))) {
	      if ((bs = bm.index) > bi) {
	        bs = b.slice(bi, bs);
	        if (s[i]) s[i] += bs; else s[++i] = bs;
	      }
	      if ((am = am[0]) === (bm = bm[0])) {
	        if (s[i]) s[i] += bm; else s[++i] = bm;
	      } else {
	        s[++i] = null;
	        q.push({
	          i: i,
	          x: d3_interpolateNumber(am, bm)
	        });
	      }
	      bi = d3_interpolate_numberB.lastIndex;
	    }
	    if (bi < b.length) {
	      bs = b.slice(bi);
	      if (s[i]) s[i] += bs; else s[++i] = bs;
	    }
	    return s.length < 2 ? q[0] ? (b = q[0].x, function(t) {
	      return b(t) + "";
	    }) : function() {
	      return b;
	    } : (b = q.length, function(t) {
	      for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
	      return s.join("");
	    });
	  }
	  var d3_interpolate_numberA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, d3_interpolate_numberB = new RegExp(d3_interpolate_numberA.source, "g");
	  d3.interpolate = d3_interpolate;
	  function d3_interpolate(a, b) {
	    var i = d3.interpolators.length, f;
	    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
	    return f;
	  }
	  d3.interpolators = [ function(a, b) {
	    var t = typeof b;
	    return (t === "string" ? d3_rgb_names.has(b.toLowerCase()) || /^(#|rgb\(|hsl\()/i.test(b) ? d3_interpolateRgb : d3_interpolateString : b instanceof d3_color ? d3_interpolateRgb : Array.isArray(b) ? d3_interpolateArray : t === "object" && isNaN(b) ? d3_interpolateObject : d3_interpolateNumber)(a, b);
	  } ];
	  d3.interpolateArray = d3_interpolateArray;
	  function d3_interpolateArray(a, b) {
	    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;
	    for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i]));
	    for (;i < na; ++i) c[i] = a[i];
	    for (;i < nb; ++i) c[i] = b[i];
	    return function(t) {
	      for (i = 0; i < n0; ++i) c[i] = x[i](t);
	      return c;
	    };
	  }
	  var d3_ease_default = function() {
	    return d3_identity;
	  };
	  var d3_ease = d3.map({
	    linear: d3_ease_default,
	    poly: d3_ease_poly,
	    quad: function() {
	      return d3_ease_quad;
	    },
	    cubic: function() {
	      return d3_ease_cubic;
	    },
	    sin: function() {
	      return d3_ease_sin;
	    },
	    exp: function() {
	      return d3_ease_exp;
	    },
	    circle: function() {
	      return d3_ease_circle;
	    },
	    elastic: d3_ease_elastic,
	    back: d3_ease_back,
	    bounce: function() {
	      return d3_ease_bounce;
	    }
	  });
	  var d3_ease_mode = d3.map({
	    "in": d3_identity,
	    out: d3_ease_reverse,
	    "in-out": d3_ease_reflect,
	    "out-in": function(f) {
	      return d3_ease_reflect(d3_ease_reverse(f));
	    }
	  });
	  d3.ease = function(name) {
	    var i = name.indexOf("-"), t = i >= 0 ? name.slice(0, i) : name, m = i >= 0 ? name.slice(i + 1) : "in";
	    t = d3_ease.get(t) || d3_ease_default;
	    m = d3_ease_mode.get(m) || d3_identity;
	    return d3_ease_clamp(m(t.apply(null, d3_arraySlice.call(arguments, 1))));
	  };
	  function d3_ease_clamp(f) {
	    return function(t) {
	      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
	    };
	  }
	  function d3_ease_reverse(f) {
	    return function(t) {
	      return 1 - f(1 - t);
	    };
	  }
	  function d3_ease_reflect(f) {
	    return function(t) {
	      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));
	    };
	  }
	  function d3_ease_quad(t) {
	    return t * t;
	  }
	  function d3_ease_cubic(t) {
	    return t * t * t;
	  }
	  function d3_ease_cubicInOut(t) {
	    if (t <= 0) return 0;
	    if (t >= 1) return 1;
	    var t2 = t * t, t3 = t2 * t;
	    return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75);
	  }
	  function d3_ease_poly(e) {
	    return function(t) {
	      return Math.pow(t, e);
	    };
	  }
	  function d3_ease_sin(t) {
	    return 1 - Math.cos(t * halfπ);
	  }
	  function d3_ease_exp(t) {
	    return Math.pow(2, 10 * (t - 1));
	  }
	  function d3_ease_circle(t) {
	    return 1 - Math.sqrt(1 - t * t);
	  }
	  function d3_ease_elastic(a, p) {
	    var s;
	    if (arguments.length < 2) p = .45;
	    if (arguments.length) s = p / τ * Math.asin(1 / a); else a = 1, s = p / 4;
	    return function(t) {
	      return 1 + a * Math.pow(2, -10 * t) * Math.sin((t - s) * τ / p);
	    };
	  }
	  function d3_ease_back(s) {
	    if (!s) s = 1.70158;
	    return function(t) {
	      return t * t * ((s + 1) * t - s);
	    };
	  }
	  function d3_ease_bounce(t) {
	    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
	  }
	  d3.interpolateHcl = d3_interpolateHcl;
	  function d3_interpolateHcl(a, b) {
	    a = d3.hcl(a);
	    b = d3.hcl(b);
	    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;
	    if (isNaN(bc)) bc = 0, ac = isNaN(ac) ? b.c : ac;
	    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
	    return function(t) {
	      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";
	    };
	  }
	  d3.interpolateHsl = d3_interpolateHsl;
	  function d3_interpolateHsl(a, b) {
	    a = d3.hsl(a);
	    b = d3.hsl(b);
	    var ah = a.h, as = a.s, al = a.l, bh = b.h - ah, bs = b.s - as, bl = b.l - al;
	    if (isNaN(bs)) bs = 0, as = isNaN(as) ? b.s : as;
	    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
	    return function(t) {
	      return d3_hsl_rgb(ah + bh * t, as + bs * t, al + bl * t) + "";
	    };
	  }
	  d3.interpolateLab = d3_interpolateLab;
	  function d3_interpolateLab(a, b) {
	    a = d3.lab(a);
	    b = d3.lab(b);
	    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;
	    return function(t) {
	      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";
	    };
	  }
	  d3.interpolateRound = d3_interpolateRound;
	  function d3_interpolateRound(a, b) {
	    b -= a;
	    return function(t) {
	      return Math.round(a + b * t);
	    };
	  }
	  d3.transform = function(string) {
	    var g = d3_document.createElementNS(d3.ns.prefix.svg, "g");
	    return (d3.transform = function(string) {
	      if (string != null) {
	        g.setAttribute("transform", string);
	        var t = g.transform.baseVal.consolidate();
	      }
	      return new d3_transform(t ? t.matrix : d3_transformIdentity);
	    })(string);
	  };
	  function d3_transform(m) {
	    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
	    if (r0[0] * r1[1] < r1[0] * r0[1]) {
	      r0[0] *= -1;
	      r0[1] *= -1;
	      kx *= -1;
	      kz *= -1;
	    }
	    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees;
	    this.translate = [ m.e, m.f ];
	    this.scale = [ kx, ky ];
	    this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0;
	  }
	  d3_transform.prototype.toString = function() {
	    return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
	  };
	  function d3_transformDot(a, b) {
	    return a[0] * b[0] + a[1] * b[1];
	  }
	  function d3_transformNormalize(a) {
	    var k = Math.sqrt(d3_transformDot(a, a));
	    if (k) {
	      a[0] /= k;
	      a[1] /= k;
	    }
	    return k;
	  }
	  function d3_transformCombine(a, b, k) {
	    a[0] += k * b[0];
	    a[1] += k * b[1];
	    return a;
	  }
	  var d3_transformIdentity = {
	    a: 1,
	    b: 0,
	    c: 0,
	    d: 1,
	    e: 0,
	    f: 0
	  };
	  d3.interpolateTransform = d3_interpolateTransform;
	  function d3_interpolateTransformPop(s) {
	    return s.length ? s.pop() + "," : "";
	  }
	  function d3_interpolateTranslate(ta, tb, s, q) {
	    if (ta[0] !== tb[0] || ta[1] !== tb[1]) {
	      var i = s.push("translate(", null, ",", null, ")");
	      q.push({
	        i: i - 4,
	        x: d3_interpolateNumber(ta[0], tb[0])
	      }, {
	        i: i - 2,
	        x: d3_interpolateNumber(ta[1], tb[1])
	      });
	    } else if (tb[0] || tb[1]) {
	      s.push("translate(" + tb + ")");
	    }
	  }
	  function d3_interpolateRotate(ra, rb, s, q) {
	    if (ra !== rb) {
	      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;
	      q.push({
	        i: s.push(d3_interpolateTransformPop(s) + "rotate(", null, ")") - 2,
	        x: d3_interpolateNumber(ra, rb)
	      });
	    } else if (rb) {
	      s.push(d3_interpolateTransformPop(s) + "rotate(" + rb + ")");
	    }
	  }
	  function d3_interpolateSkew(wa, wb, s, q) {
	    if (wa !== wb) {
	      q.push({
	        i: s.push(d3_interpolateTransformPop(s) + "skewX(", null, ")") - 2,
	        x: d3_interpolateNumber(wa, wb)
	      });
	    } else if (wb) {
	      s.push(d3_interpolateTransformPop(s) + "skewX(" + wb + ")");
	    }
	  }
	  function d3_interpolateScale(ka, kb, s, q) {
	    if (ka[0] !== kb[0] || ka[1] !== kb[1]) {
	      var i = s.push(d3_interpolateTransformPop(s) + "scale(", null, ",", null, ")");
	      q.push({
	        i: i - 4,
	        x: d3_interpolateNumber(ka[0], kb[0])
	      }, {
	        i: i - 2,
	        x: d3_interpolateNumber(ka[1], kb[1])
	      });
	    } else if (kb[0] !== 1 || kb[1] !== 1) {
	      s.push(d3_interpolateTransformPop(s) + "scale(" + kb + ")");
	    }
	  }
	  function d3_interpolateTransform(a, b) {
	    var s = [], q = [];
	    a = d3.transform(a), b = d3.transform(b);
	    d3_interpolateTranslate(a.translate, b.translate, s, q);
	    d3_interpolateRotate(a.rotate, b.rotate, s, q);
	    d3_interpolateSkew(a.skew, b.skew, s, q);
	    d3_interpolateScale(a.scale, b.scale, s, q);
	    a = b = null;
	    return function(t) {
	      var i = -1, n = q.length, o;
	      while (++i < n) s[(o = q[i]).i] = o.x(t);
	      return s.join("");
	    };
	  }
	  function d3_uninterpolateNumber(a, b) {
	    b = (b -= a = +a) || 1 / b;
	    return function(x) {
	      return (x - a) / b;
	    };
	  }
	  function d3_uninterpolateClamp(a, b) {
	    b = (b -= a = +a) || 1 / b;
	    return function(x) {
	      return Math.max(0, Math.min(1, (x - a) / b));
	    };
	  }
	  d3.layout = {};
	  d3.layout.bundle = function() {
	    return function(links) {
	      var paths = [], i = -1, n = links.length;
	      while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
	      return paths;
	    };
	  };
	  function d3_layout_bundlePath(link) {
	    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];
	    while (start !== lca) {
	      start = start.parent;
	      points.push(start);
	    }
	    var k = points.length;
	    while (end !== lca) {
	      points.splice(k, 0, end);
	      end = end.parent;
	    }
	    return points;
	  }
	  function d3_layout_bundleAncestors(node) {
	    var ancestors = [], parent = node.parent;
	    while (parent != null) {
	      ancestors.push(node);
	      node = parent;
	      parent = parent.parent;
	    }
	    ancestors.push(node);
	    return ancestors;
	  }
	  function d3_layout_bundleLeastCommonAncestor(a, b) {
	    if (a === b) return a;
	    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;
	    while (aNode === bNode) {
	      sharedNode = aNode;
	      aNode = aNodes.pop();
	      bNode = bNodes.pop();
	    }
	    return sharedNode;
	  }
	  d3.layout.chord = function() {
	    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
	    function relayout() {
	      var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;
	      chords = [];
	      groups = [];
	      k = 0, i = -1;
	      while (++i < n) {
	        x = 0, j = -1;
	        while (++j < n) {
	          x += matrix[i][j];
	        }
	        groupSums.push(x);
	        subgroupIndex.push(d3.range(n));
	        k += x;
	      }
	      if (sortGroups) {
	        groupIndex.sort(function(a, b) {
	          return sortGroups(groupSums[a], groupSums[b]);
	        });
	      }
	      if (sortSubgroups) {
	        subgroupIndex.forEach(function(d, i) {
	          d.sort(function(a, b) {
	            return sortSubgroups(matrix[i][a], matrix[i][b]);
	          });
	        });
	      }
	      k = (τ - padding * n) / k;
	      x = 0, i = -1;
	      while (++i < n) {
	        x0 = x, j = -1;
	        while (++j < n) {
	          var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k;
	          subgroups[di + "-" + dj] = {
	            index: di,
	            subindex: dj,
	            startAngle: a0,
	            endAngle: a1,
	            value: v
	          };
	        }
	        groups[di] = {
	          index: di,
	          startAngle: x0,
	          endAngle: x,
	          value: groupSums[di]
	        };
	        x += padding;
	      }
	      i = -1;
	      while (++i < n) {
	        j = i - 1;
	        while (++j < n) {
	          var source = subgroups[i + "-" + j], target = subgroups[j + "-" + i];
	          if (source.value || target.value) {
	            chords.push(source.value < target.value ? {
	              source: target,
	              target: source
	            } : {
	              source: source,
	              target: target
	            });
	          }
	        }
	      }
	      if (sortChords) resort();
	    }
	    function resort() {
	      chords.sort(function(a, b) {
	        return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);
	      });
	    }
	    chord.matrix = function(x) {
	      if (!arguments.length) return matrix;
	      n = (matrix = x) && matrix.length;
	      chords = groups = null;
	      return chord;
	    };
	    chord.padding = function(x) {
	      if (!arguments.length) return padding;
	      padding = x;
	      chords = groups = null;
	      return chord;
	    };
	    chord.sortGroups = function(x) {
	      if (!arguments.length) return sortGroups;
	      sortGroups = x;
	      chords = groups = null;
	      return chord;
	    };
	    chord.sortSubgroups = function(x) {
	      if (!arguments.length) return sortSubgroups;
	      sortSubgroups = x;
	      chords = null;
	      return chord;
	    };
	    chord.sortChords = function(x) {
	      if (!arguments.length) return sortChords;
	      sortChords = x;
	      if (chords) resort();
	      return chord;
	    };
	    chord.chords = function() {
	      if (!chords) relayout();
	      return chords;
	    };
	    chord.groups = function() {
	      if (!groups) relayout();
	      return groups;
	    };
	    return chord;
	  };
	  d3.layout.force = function() {
	    var force = {}, event = d3.dispatch("start", "tick", "end"), timer, size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, chargeDistance2 = d3_layout_forceChargeDistance2, gravity = .1, theta2 = .64, nodes = [], links = [], distances, strengths, charges;
	    function repulse(node) {
	      return function(quad, x1, _, x2) {
	        if (quad.point !== node) {
	          var dx = quad.cx - node.x, dy = quad.cy - node.y, dw = x2 - x1, dn = dx * dx + dy * dy;
	          if (dw * dw / theta2 < dn) {
	            if (dn < chargeDistance2) {
	              var k = quad.charge / dn;
	              node.px -= dx * k;
	              node.py -= dy * k;
	            }
	            return true;
	          }
	          if (quad.point && dn && dn < chargeDistance2) {
	            var k = quad.pointCharge / dn;
	            node.px -= dx * k;
	            node.py -= dy * k;
	          }
	        }
	        return !quad.charge;
	      };
	    }
	    force.tick = function() {
	      if ((alpha *= .99) < .005) {
	        timer = null;
	        event.end({
	          type: "end",
	          alpha: alpha = 0
	        });
	        return true;
	      }
	      var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y;
	      for (i = 0; i < m; ++i) {
	        o = links[i];
	        s = o.source;
	        t = o.target;
	        x = t.x - s.x;
	        y = t.y - s.y;
	        if (l = x * x + y * y) {
	          l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
	          x *= l;
	          y *= l;
	          t.x -= x * (k = s.weight + t.weight ? s.weight / (s.weight + t.weight) : .5);
	          t.y -= y * k;
	          s.x += x * (k = 1 - k);
	          s.y += y * k;
	        }
	      }
	      if (k = alpha * gravity) {
	        x = size[0] / 2;
	        y = size[1] / 2;
	        i = -1;
	        if (k) while (++i < n) {
	          o = nodes[i];
	          o.x += (x - o.x) * k;
	          o.y += (y - o.y) * k;
	        }
	      }
	      if (charge) {
	        d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
	        i = -1;
	        while (++i < n) {
	          if (!(o = nodes[i]).fixed) {
	            q.visit(repulse(o));
	          }
	        }
	      }
	      i = -1;
	      while (++i < n) {
	        o = nodes[i];
	        if (o.fixed) {
	          o.x = o.px;
	          o.y = o.py;
	        } else {
	          o.x -= (o.px - (o.px = o.x)) * friction;
	          o.y -= (o.py - (o.py = o.y)) * friction;
	        }
	      }
	      event.tick({
	        type: "tick",
	        alpha: alpha
	      });
	    };
	    force.nodes = function(x) {
	      if (!arguments.length) return nodes;
	      nodes = x;
	      return force;
	    };
	    force.links = function(x) {
	      if (!arguments.length) return links;
	      links = x;
	      return force;
	    };
	    force.size = function(x) {
	      if (!arguments.length) return size;
	      size = x;
	      return force;
	    };
	    force.linkDistance = function(x) {
	      if (!arguments.length) return linkDistance;
	      linkDistance = typeof x === "function" ? x : +x;
	      return force;
	    };
	    force.distance = force.linkDistance;
	    force.linkStrength = function(x) {
	      if (!arguments.length) return linkStrength;
	      linkStrength = typeof x === "function" ? x : +x;
	      return force;
	    };
	    force.friction = function(x) {
	      if (!arguments.length) return friction;
	      friction = +x;
	      return force;
	    };
	    force.charge = function(x) {
	      if (!arguments.length) return charge;
	      charge = typeof x === "function" ? x : +x;
	      return force;
	    };
	    force.chargeDistance = function(x) {
	      if (!arguments.length) return Math.sqrt(chargeDistance2);
	      chargeDistance2 = x * x;
	      return force;
	    };
	    force.gravity = function(x) {
	      if (!arguments.length) return gravity;
	      gravity = +x;
	      return force;
	    };
	    force.theta = function(x) {
	      if (!arguments.length) return Math.sqrt(theta2);
	      theta2 = x * x;
	      return force;
	    };
	    force.alpha = function(x) {
	      if (!arguments.length) return alpha;
	      x = +x;
	      if (alpha) {
	        if (x > 0) {
	          alpha = x;
	        } else {
	          timer.c = null, timer.t = NaN, timer = null;
	          event.end({
	            type: "end",
	            alpha: alpha = 0
	          });
	        }
	      } else if (x > 0) {
	        event.start({
	          type: "start",
	          alpha: alpha = x
	        });
	        timer = d3_timer(force.tick);
	      }
	      return force;
	    };
	    force.start = function() {
	      var i, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;
	      for (i = 0; i < n; ++i) {
	        (o = nodes[i]).index = i;
	        o.weight = 0;
	      }
	      for (i = 0; i < m; ++i) {
	        o = links[i];
	        if (typeof o.source == "number") o.source = nodes[o.source];
	        if (typeof o.target == "number") o.target = nodes[o.target];
	        ++o.source.weight;
	        ++o.target.weight;
	      }
	      for (i = 0; i < n; ++i) {
	        o = nodes[i];
	        if (isNaN(o.x)) o.x = position("x", w);
	        if (isNaN(o.y)) o.y = position("y", h);
	        if (isNaN(o.px)) o.px = o.x;
	        if (isNaN(o.py)) o.py = o.y;
	      }
	      distances = [];
	      if (typeof linkDistance === "function") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance;
	      strengths = [];
	      if (typeof linkStrength === "function") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength;
	      charges = [];
	      if (typeof charge === "function") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge;
	      function position(dimension, size) {
	        if (!neighbors) {
	          neighbors = new Array(n);
	          for (j = 0; j < n; ++j) {
	            neighbors[j] = [];
	          }
	          for (j = 0; j < m; ++j) {
	            var o = links[j];
	            neighbors[o.source.index].push(o.target);
	            neighbors[o.target.index].push(o.source);
	          }
	        }
	        var candidates = neighbors[i], j = -1, l = candidates.length, x;
	        while (++j < l) if (!isNaN(x = candidates[j][dimension])) return x;
	        return Math.random() * size;
	      }
	      return force.resume();
	    };
	    force.resume = function() {
	      return force.alpha(.1);
	    };
	    force.stop = function() {
	      return force.alpha(0);
	    };
	    force.drag = function() {
	      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart.force", d3_layout_forceDragstart).on("drag.force", dragmove).on("dragend.force", d3_layout_forceDragend);
	      if (!arguments.length) return drag;
	      this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);
	    };
	    function dragmove(d) {
	      d.px = d3.event.x, d.py = d3.event.y;
	      force.resume();
	    }
	    return d3.rebind(force, event, "on");
	  };
	  function d3_layout_forceDragstart(d) {
	    d.fixed |= 2;
	  }
	  function d3_layout_forceDragend(d) {
	    d.fixed &= ~6;
	  }
	  function d3_layout_forceMouseover(d) {
	    d.fixed |= 4;
	    d.px = d.x, d.py = d.y;
	  }
	  function d3_layout_forceMouseout(d) {
	    d.fixed &= ~4;
	  }
	  function d3_layout_forceAccumulate(quad, alpha, charges) {
	    var cx = 0, cy = 0;
	    quad.charge = 0;
	    if (!quad.leaf) {
	      var nodes = quad.nodes, n = nodes.length, i = -1, c;
	      while (++i < n) {
	        c = nodes[i];
	        if (c == null) continue;
	        d3_layout_forceAccumulate(c, alpha, charges);
	        quad.charge += c.charge;
	        cx += c.charge * c.cx;
	        cy += c.charge * c.cy;
	      }
	    }
	    if (quad.point) {
	      if (!quad.leaf) {
	        quad.point.x += Math.random() - .5;
	        quad.point.y += Math.random() - .5;
	      }
	      var k = alpha * charges[quad.point.index];
	      quad.charge += quad.pointCharge = k;
	      cx += k * quad.point.x;
	      cy += k * quad.point.y;
	    }
	    quad.cx = cx / quad.charge;
	    quad.cy = cy / quad.charge;
	  }
	  var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1, d3_layout_forceChargeDistance2 = Infinity;
	  d3.layout.hierarchy = function() {
	    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
	    function hierarchy(root) {
	      var stack = [ root ], nodes = [], node;
	      root.depth = 0;
	      while ((node = stack.pop()) != null) {
	        nodes.push(node);
	        if ((childs = children.call(hierarchy, node, node.depth)) && (n = childs.length)) {
	          var n, childs, child;
	          while (--n >= 0) {
	            stack.push(child = childs[n]);
	            child.parent = node;
	            child.depth = node.depth + 1;
	          }
	          if (value) node.value = 0;
	          node.children = childs;
	        } else {
	          if (value) node.value = +value.call(hierarchy, node, node.depth) || 0;
	          delete node.children;
	        }
	      }
	      d3_layout_hierarchyVisitAfter(root, function(node) {
	        var childs, parent;
	        if (sort && (childs = node.children)) childs.sort(sort);
	        if (value && (parent = node.parent)) parent.value += node.value;
	      });
	      return nodes;
	    }
	    hierarchy.sort = function(x) {
	      if (!arguments.length) return sort;
	      sort = x;
	      return hierarchy;
	    };
	    hierarchy.children = function(x) {
	      if (!arguments.length) return children;
	      children = x;
	      return hierarchy;
	    };
	    hierarchy.value = function(x) {
	      if (!arguments.length) return value;
	      value = x;
	      return hierarchy;
	    };
	    hierarchy.revalue = function(root) {
	      if (value) {
	        d3_layout_hierarchyVisitBefore(root, function(node) {
	          if (node.children) node.value = 0;
	        });
	        d3_layout_hierarchyVisitAfter(root, function(node) {
	          var parent;
	          if (!node.children) node.value = +value.call(hierarchy, node, node.depth) || 0;
	          if (parent = node.parent) parent.value += node.value;
	        });
	      }
	      return root;
	    };
	    return hierarchy;
	  };
	  function d3_layout_hierarchyRebind(object, hierarchy) {
	    d3.rebind(object, hierarchy, "sort", "children", "value");
	    object.nodes = object;
	    object.links = d3_layout_hierarchyLinks;
	    return object;
	  }
	  function d3_layout_hierarchyVisitBefore(node, callback) {
	    var nodes = [ node ];
	    while ((node = nodes.pop()) != null) {
	      callback(node);
	      if ((children = node.children) && (n = children.length)) {
	        var n, children;
	        while (--n >= 0) nodes.push(children[n]);
	      }
	    }
	  }
	  function d3_layout_hierarchyVisitAfter(node, callback) {
	    var nodes = [ node ], nodes2 = [];
	    while ((node = nodes.pop()) != null) {
	      nodes2.push(node);
	      if ((children = node.children) && (n = children.length)) {
	        var i = -1, n, children;
	        while (++i < n) nodes.push(children[i]);
	      }
	    }
	    while ((node = nodes2.pop()) != null) {
	      callback(node);
	    }
	  }
	  function d3_layout_hierarchyChildren(d) {
	    return d.children;
	  }
	  function d3_layout_hierarchyValue(d) {
	    return d.value;
	  }
	  function d3_layout_hierarchySort(a, b) {
	    return b.value - a.value;
	  }
	  function d3_layout_hierarchyLinks(nodes) {
	    return d3.merge(nodes.map(function(parent) {
	      return (parent.children || []).map(function(child) {
	        return {
	          source: parent,
	          target: child
	        };
	      });
	    }));
	  }
	  d3.layout.partition = function() {
	    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
	    function position(node, x, dx, dy) {
	      var children = node.children;
	      node.x = x;
	      node.y = node.depth * dy;
	      node.dx = dx;
	      node.dy = dy;
	      if (children && (n = children.length)) {
	        var i = -1, n, c, d;
	        dx = node.value ? dx / node.value : 0;
	        while (++i < n) {
	          position(c = children[i], x, d = c.value * dx, dy);
	          x += d;
	        }
	      }
	    }
	    function depth(node) {
	      var children = node.children, d = 0;
	      if (children && (n = children.length)) {
	        var i = -1, n;
	        while (++i < n) d = Math.max(d, depth(children[i]));
	      }
	      return 1 + d;
	    }
	    function partition(d, i) {
	      var nodes = hierarchy.call(this, d, i);
	      position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
	      return nodes;
	    }
	    partition.size = function(x) {
	      if (!arguments.length) return size;
	      size = x;
	      return partition;
	    };
	    return d3_layout_hierarchyRebind(partition, hierarchy);
	  };
	  d3.layout.pie = function() {
	    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = τ, padAngle = 0;
	    function pie(data) {
	      var n = data.length, values = data.map(function(d, i) {
	        return +value.call(pie, d, i);
	      }), a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle), da = (typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - a, p = Math.min(Math.abs(da) / n, +(typeof padAngle === "function" ? padAngle.apply(this, arguments) : padAngle)), pa = p * (da < 0 ? -1 : 1), sum = d3.sum(values), k = sum ? (da - n * pa) / sum : 0, index = d3.range(n), arcs = [], v;
	      if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {
	        return values[j] - values[i];
	      } : function(i, j) {
	        return sort(data[i], data[j]);
	      });
	      index.forEach(function(i) {
	        arcs[i] = {
	          data: data[i],
	          value: v = values[i],
	          startAngle: a,
	          endAngle: a += v * k + pa,
	          padAngle: p
	        };
	      });
	      return arcs;
	    }
	    pie.value = function(_) {
	      if (!arguments.length) return value;
	      value = _;
	      return pie;
	    };
	    pie.sort = function(_) {
	      if (!arguments.length) return sort;
	      sort = _;
	      return pie;
	    };
	    pie.startAngle = function(_) {
	      if (!arguments.length) return startAngle;
	      startAngle = _;
	      return pie;
	    };
	    pie.endAngle = function(_) {
	      if (!arguments.length) return endAngle;
	      endAngle = _;
	      return pie;
	    };
	    pie.padAngle = function(_) {
	      if (!arguments.length) return padAngle;
	      padAngle = _;
	      return pie;
	    };
	    return pie;
	  };
	  var d3_layout_pieSortByValue = {};
	  d3.layout.stack = function() {
	    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
	    function stack(data, index) {
	      if (!(n = data.length)) return data;
	      var series = data.map(function(d, i) {
	        return values.call(stack, d, i);
	      });
	      var points = series.map(function(d) {
	        return d.map(function(v, i) {
	          return [ x.call(stack, v, i), y.call(stack, v, i) ];
	        });
	      });
	      var orders = order.call(stack, points, index);
	      series = d3.permute(series, orders);
	      points = d3.permute(points, orders);
	      var offsets = offset.call(stack, points, index);
	      var m = series[0].length, n, i, j, o;
	      for (j = 0; j < m; ++j) {
	        out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
	        for (i = 1; i < n; ++i) {
	          out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
	        }
	      }
	      return data;
	    }
	    stack.values = function(x) {
	      if (!arguments.length) return values;
	      values = x;
	      return stack;
	    };
	    stack.order = function(x) {
	      if (!arguments.length) return order;
	      order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;
	      return stack;
	    };
	    stack.offset = function(x) {
	      if (!arguments.length) return offset;
	      offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;
	      return stack;
	    };
	    stack.x = function(z) {
	      if (!arguments.length) return x;
	      x = z;
	      return stack;
	    };
	    stack.y = function(z) {
	      if (!arguments.length) return y;
	      y = z;
	      return stack;
	    };
	    stack.out = function(z) {
	      if (!arguments.length) return out;
	      out = z;
	      return stack;
	    };
	    return stack;
	  };
	  function d3_layout_stackX(d) {
	    return d.x;
	  }
	  function d3_layout_stackY(d) {
	    return d.y;
	  }
	  function d3_layout_stackOut(d, y0, y) {
	    d.y0 = y0;
	    d.y = y;
	  }
	  var d3_layout_stackOrders = d3.map({
	    "inside-out": function(data) {
	      var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {
	        return max[a] - max[b];
	      }), top = 0, bottom = 0, tops = [], bottoms = [];
	      for (i = 0; i < n; ++i) {
	        j = index[i];
	        if (top < bottom) {
	          top += sums[j];
	          tops.push(j);
	        } else {
	          bottom += sums[j];
	          bottoms.push(j);
	        }
	      }
	      return bottoms.reverse().concat(tops);
	    },
	    reverse: function(data) {
	      return d3.range(data.length).reverse();
	    },
	    "default": d3_layout_stackOrderDefault
	  });
	  var d3_layout_stackOffsets = d3.map({
	    silhouette: function(data) {
	      var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = [];
	      for (j = 0; j < m; ++j) {
	        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
	        if (o > max) max = o;
	        sums.push(o);
	      }
	      for (j = 0; j < m; ++j) {
	        y0[j] = (max - sums[j]) / 2;
	      }
	      return y0;
	    },
	    wiggle: function(data) {
	      var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];
	      y0[0] = o = o0 = 0;
	      for (j = 1; j < m; ++j) {
	        for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
	        for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
	          for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
	            s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
	          }
	          s2 += s3 * data[i][j][1];
	        }
	        y0[j] = o -= s1 ? s2 / s1 * dx : 0;
	        if (o < o0) o0 = o;
	      }
	      for (j = 0; j < m; ++j) y0[j] -= o0;
	      return y0;
	    },
	    expand: function(data) {
	      var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = [];
	      for (j = 0; j < m; ++j) {
	        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
	        if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k;
	      }
	      for (j = 0; j < m; ++j) y0[j] = 0;
	      return y0;
	    },
	    zero: d3_layout_stackOffsetZero
	  });
	  function d3_layout_stackOrderDefault(data) {
	    return d3.range(data.length);
	  }
	  function d3_layout_stackOffsetZero(data) {
	    var j = -1, m = data[0].length, y0 = [];
	    while (++j < m) y0[j] = 0;
	    return y0;
	  }
	  function d3_layout_stackMaxIndex(array) {
	    var i = 1, j = 0, v = array[0][1], k, n = array.length;
	    for (;i < n; ++i) {
	      if ((k = array[i][1]) > v) {
	        j = i;
	        v = k;
	      }
	    }
	    return j;
	  }
	  function d3_layout_stackReduceSum(d) {
	    return d.reduce(d3_layout_stackSum, 0);
	  }
	  function d3_layout_stackSum(p, d) {
	    return p + d[1];
	  }
	  d3.layout.histogram = function() {
	    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
	    function histogram(data, i) {
	      var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;
	      while (++i < m) {
	        bin = bins[i] = [];
	        bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
	        bin.y = 0;
	      }
	      if (m > 0) {
	        i = -1;
	        while (++i < n) {
	          x = values[i];
	          if (x >= range[0] && x <= range[1]) {
	            bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
	            bin.y += k;
	            bin.push(data[i]);
	          }
	        }
	      }
	      return bins;
	    }
	    histogram.value = function(x) {
	      if (!arguments.length) return valuer;
	      valuer = x;
	      return histogram;
	    };
	    histogram.range = function(x) {
	      if (!arguments.length) return ranger;
	      ranger = d3_functor(x);
	      return histogram;
	    };
	    histogram.bins = function(x) {
	      if (!arguments.length) return binner;
	      binner = typeof x === "number" ? function(range) {
	        return d3_layout_histogramBinFixed(range, x);
	      } : d3_functor(x);
	      return histogram;
	    };
	    histogram.frequency = function(x) {
	      if (!arguments.length) return frequency;
	      frequency = !!x;
	      return histogram;
	    };
	    return histogram;
	  };
	  function d3_layout_histogramBinSturges(range, values) {
	    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
	  }
	  function d3_layout_histogramBinFixed(range, n) {
	    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];
	    while (++x <= n) f[x] = m * x + b;
	    return f;
	  }
	  function d3_layout_histogramRange(values) {
	    return [ d3.min(values), d3.max(values) ];
	  }
	  d3.layout.pack = function() {
	    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ], radius;
	    function pack(d, i) {
	      var nodes = hierarchy.call(this, d, i), root = nodes[0], w = size[0], h = size[1], r = radius == null ? Math.sqrt : typeof radius === "function" ? radius : function() {
	        return radius;
	      };
	      root.x = root.y = 0;
	      d3_layout_hierarchyVisitAfter(root, function(d) {
	        d.r = +r(d.value);
	      });
	      d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
	      if (padding) {
	        var dr = padding * (radius ? 1 : Math.max(2 * root.r / w, 2 * root.r / h)) / 2;
	        d3_layout_hierarchyVisitAfter(root, function(d) {
	          d.r += dr;
	        });
	        d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
	        d3_layout_hierarchyVisitAfter(root, function(d) {
	          d.r -= dr;
	        });
	      }
	      d3_layout_packTransform(root, w / 2, h / 2, radius ? 1 : 1 / Math.max(2 * root.r / w, 2 * root.r / h));
	      return nodes;
	    }
	    pack.size = function(_) {
	      if (!arguments.length) return size;
	      size = _;
	      return pack;
	    };
	    pack.radius = function(_) {
	      if (!arguments.length) return radius;
	      radius = _ == null || typeof _ === "function" ? _ : +_;
	      return pack;
	    };
	    pack.padding = function(_) {
	      if (!arguments.length) return padding;
	      padding = +_;
	      return pack;
	    };
	    return d3_layout_hierarchyRebind(pack, hierarchy);
	  };
	  function d3_layout_packSort(a, b) {
	    return a.value - b.value;
	  }
	  function d3_layout_packInsert(a, b) {
	    var c = a._pack_next;
	    a._pack_next = b;
	    b._pack_prev = a;
	    b._pack_next = c;
	    c._pack_prev = b;
	  }
	  function d3_layout_packSplice(a, b) {
	    a._pack_next = b;
	    b._pack_prev = a;
	  }
	  function d3_layout_packIntersects(a, b) {
	    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;
	    return .999 * dr * dr > dx * dx + dy * dy;
	  }
	  function d3_layout_packSiblings(node) {
	    if (!(nodes = node.children) || !(n = nodes.length)) return;
	    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;
	    function bound(node) {
	      xMin = Math.min(node.x - node.r, xMin);
	      xMax = Math.max(node.x + node.r, xMax);
	      yMin = Math.min(node.y - node.r, yMin);
	      yMax = Math.max(node.y + node.r, yMax);
	    }
	    nodes.forEach(d3_layout_packLink);
	    a = nodes[0];
	    a.x = -a.r;
	    a.y = 0;
	    bound(a);
	    if (n > 1) {
	      b = nodes[1];
	      b.x = b.r;
	      b.y = 0;
	      bound(b);
	      if (n > 2) {
	        c = nodes[2];
	        d3_layout_packPlace(a, b, c);
	        bound(c);
	        d3_layout_packInsert(a, c);
	        a._pack_prev = c;
	        d3_layout_packInsert(c, b);
	        b = a._pack_next;
	        for (i = 3; i < n; i++) {
	          d3_layout_packPlace(a, b, c = nodes[i]);
	          var isect = 0, s1 = 1, s2 = 1;
	          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
	            if (d3_layout_packIntersects(j, c)) {
	              isect = 1;
	              break;
	            }
	          }
	          if (isect == 1) {
	            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
	              if (d3_layout_packIntersects(k, c)) {
	                break;
	              }
	            }
	          }
	          if (isect) {
	            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);
	            i--;
	          } else {
	            d3_layout_packInsert(a, c);
	            b = c;
	            bound(c);
	          }
	        }
	      }
	    }
	    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;
	    for (i = 0; i < n; i++) {
	      c = nodes[i];
	      c.x -= cx;
	      c.y -= cy;
	      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));
	    }
	    node.r = cr;
	    nodes.forEach(d3_layout_packUnlink);
	  }
	  function d3_layout_packLink(node) {
	    node._pack_next = node._pack_prev = node;
	  }
	  function d3_layout_packUnlink(node) {
	    delete node._pack_next;
	    delete node._pack_prev;
	  }
	  function d3_layout_packTransform(node, x, y, k) {
	    var children = node.children;
	    node.x = x += k * node.x;
	    node.y = y += k * node.y;
	    node.r *= k;
	    if (children) {
	      var i = -1, n = children.length;
	      while (++i < n) d3_layout_packTransform(children[i], x, y, k);
	    }
	  }
	  function d3_layout_packPlace(a, b, c) {
	    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;
	    if (db && (dx || dy)) {
	      var da = b.r + c.r, dc = dx * dx + dy * dy;
	      da *= da;
	      db *= db;
	      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
	      c.x = a.x + x * dx + y * dy;
	      c.y = a.y + x * dy - y * dx;
	    } else {
	      c.x = a.x + db;
	      c.y = a.y;
	    }
	  }
	  d3.layout.tree = function() {
	    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = null;
	    function tree(d, i) {
	      var nodes = hierarchy.call(this, d, i), root0 = nodes[0], root1 = wrapTree(root0);
	      d3_layout_hierarchyVisitAfter(root1, firstWalk), root1.parent.m = -root1.z;
	      d3_layout_hierarchyVisitBefore(root1, secondWalk);
	      if (nodeSize) d3_layout_hierarchyVisitBefore(root0, sizeNode); else {
	        var left = root0, right = root0, bottom = root0;
	        d3_layout_hierarchyVisitBefore(root0, function(node) {
	          if (node.x < left.x) left = node;
	          if (node.x > right.x) right = node;
	          if (node.depth > bottom.depth) bottom = node;
	        });
	        var tx = separation(left, right) / 2 - left.x, kx = size[0] / (right.x + separation(right, left) / 2 + tx), ky = size[1] / (bottom.depth || 1);
	        d3_layout_hierarchyVisitBefore(root0, function(node) {
	          node.x = (node.x + tx) * kx;
	          node.y = node.depth * ky;
	        });
	      }
	      return nodes;
	    }
	    function wrapTree(root0) {
	      var root1 = {
	        A: null,
	        children: [ root0 ]
	      }, queue = [ root1 ], node1;
	      while ((node1 = queue.pop()) != null) {
	        for (var children = node1.children, child, i = 0, n = children.length; i < n; ++i) {
	          queue.push((children[i] = child = {
	            _: children[i],
	            parent: node1,
	            children: (child = children[i].children) && child.slice() || [],
	            A: null,
	            a: null,
	            z: 0,
	            m: 0,
	            c: 0,
	            s: 0,
	            t: null,
	            i: i
	          }).a = child);
	        }
	      }
	      return root1.children[0];
	    }
	    function firstWalk(v) {
	      var children = v.children, siblings = v.parent.children, w = v.i ? siblings[v.i - 1] : null;
	      if (children.length) {
	        d3_layout_treeShift(v);
	        var midpoint = (children[0].z + children[children.length - 1].z) / 2;
	        if (w) {
	          v.z = w.z + separation(v._, w._);
	          v.m = v.z - midpoint;
	        } else {
	          v.z = midpoint;
	        }
	      } else if (w) {
	        v.z = w.z + separation(v._, w._);
	      }
	      v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
	    }
	    function secondWalk(v) {
	      v._.x = v.z + v.parent.m;
	      v.m += v.parent.m;
	    }
	    function apportion(v, w, ancestor) {
	      if (w) {
	        var vip = v, vop = v, vim = w, vom = vip.parent.children[0], sip = vip.m, sop = vop.m, sim = vim.m, som = vom.m, shift;
	        while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
	          vom = d3_layout_treeLeft(vom);
	          vop = d3_layout_treeRight(vop);
	          vop.a = v;
	          shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
	          if (shift > 0) {
	            d3_layout_treeMove(d3_layout_treeAncestor(vim, v, ancestor), v, shift);
	            sip += shift;
	            sop += shift;
	          }
	          sim += vim.m;
	          sip += vip.m;
	          som += vom.m;
	          sop += vop.m;
	        }
	        if (vim && !d3_layout_treeRight(vop)) {
	          vop.t = vim;
	          vop.m += sim - sop;
	        }
	        if (vip && !d3_layout_treeLeft(vom)) {
	          vom.t = vip;
	          vom.m += sip - som;
	          ancestor = v;
	        }
	      }
	      return ancestor;
	    }
	    function sizeNode(node) {
	      node.x *= size[0];
	      node.y = node.depth * size[1];
	    }
	    tree.separation = function(x) {
	      if (!arguments.length) return separation;
	      separation = x;
	      return tree;
	    };
	    tree.size = function(x) {
	      if (!arguments.length) return nodeSize ? null : size;
	      nodeSize = (size = x) == null ? sizeNode : null;
	      return tree;
	    };
	    tree.nodeSize = function(x) {
	      if (!arguments.length) return nodeSize ? size : null;
	      nodeSize = (size = x) == null ? null : sizeNode;
	      return tree;
	    };
	    return d3_layout_hierarchyRebind(tree, hierarchy);
	  };
	  function d3_layout_treeSeparation(a, b) {
	    return a.parent == b.parent ? 1 : 2;
	  }
	  function d3_layout_treeLeft(v) {
	    var children = v.children;
	    return children.length ? children[0] : v.t;
	  }
	  function d3_layout_treeRight(v) {
	    var children = v.children, n;
	    return (n = children.length) ? children[n - 1] : v.t;
	  }
	  function d3_layout_treeMove(wm, wp, shift) {
	    var change = shift / (wp.i - wm.i);
	    wp.c -= change;
	    wp.s += shift;
	    wm.c += change;
	    wp.z += shift;
	    wp.m += shift;
	  }
	  function d3_layout_treeShift(v) {
	    var shift = 0, change = 0, children = v.children, i = children.length, w;
	    while (--i >= 0) {
	      w = children[i];
	      w.z += shift;
	      w.m += shift;
	      shift += w.s + (change += w.c);
	    }
	  }
	  function d3_layout_treeAncestor(vim, v, ancestor) {
	    return vim.a.parent === v.parent ? vim.a : ancestor;
	  }
	  d3.layout.cluster = function() {
	    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = false;
	    function cluster(d, i) {
	      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0;
	      d3_layout_hierarchyVisitAfter(root, function(node) {
	        var children = node.children;
	        if (children && children.length) {
	          node.x = d3_layout_clusterX(children);
	          node.y = d3_layout_clusterY(children);
	        } else {
	          node.x = previousNode ? x += separation(node, previousNode) : 0;
	          node.y = 0;
	          previousNode = node;
	        }
	      });
	      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;
	      d3_layout_hierarchyVisitAfter(root, nodeSize ? function(node) {
	        node.x = (node.x - root.x) * size[0];
	        node.y = (root.y - node.y) * size[1];
	      } : function(node) {
	        node.x = (node.x - x0) / (x1 - x0) * size[0];
	        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
	      });
	      return nodes;
	    }
	    cluster.separation = function(x) {
	      if (!arguments.length) return separation;
	      separation = x;
	      return cluster;
	    };
	    cluster.size = function(x) {
	      if (!arguments.length) return nodeSize ? null : size;
	      nodeSize = (size = x) == null;
	      return cluster;
	    };
	    cluster.nodeSize = function(x) {
	      if (!arguments.length) return nodeSize ? size : null;
	      nodeSize = (size = x) != null;
	      return cluster;
	    };
	    return d3_layout_hierarchyRebind(cluster, hierarchy);
	  };
	  function d3_layout_clusterY(children) {
	    return 1 + d3.max(children, function(child) {
	      return child.y;
	    });
	  }
	  function d3_layout_clusterX(children) {
	    return children.reduce(function(x, child) {
	      return x + child.x;
	    }, 0) / children.length;
	  }
	  function d3_layout_clusterLeft(node) {
	    var children = node.children;
	    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
	  }
	  function d3_layout_clusterRight(node) {
	    var children = node.children, n;
	    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
	  }
	  d3.layout.treemap = function() {
	    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = "squarify", ratio = .5 * (1 + Math.sqrt(5));
	    function scale(children, k) {
	      var i = -1, n = children.length, child, area;
	      while (++i < n) {
	        area = (child = children[i]).value * (k < 0 ? 0 : k);
	        child.area = isNaN(area) || area <= 0 ? 0 : area;
	      }
	    }
	    function squarify(node) {
	      var children = node.children;
	      if (children && children.length) {
	        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === "slice" ? rect.dx : mode === "dice" ? rect.dy : mode === "slice-dice" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n;
	        scale(remaining, rect.dx * rect.dy / node.value);
	        row.area = 0;
	        while ((n = remaining.length) > 0) {
	          row.push(child = remaining[n - 1]);
	          row.area += child.area;
	          if (mode !== "squarify" || (score = worst(row, u)) <= best) {
	            remaining.pop();
	            best = score;
	          } else {
	            row.area -= row.pop().area;
	            position(row, u, rect, false);
	            u = Math.min(rect.dx, rect.dy);
	            row.length = row.area = 0;
	            best = Infinity;
	          }
	        }
	        if (row.length) {
	          position(row, u, rect, true);
	          row.length = row.area = 0;
	        }
	        children.forEach(squarify);
	      }
	    }
	    function stickify(node) {
	      var children = node.children;
	      if (children && children.length) {
	        var rect = pad(node), remaining = children.slice(), child, row = [];
	        scale(remaining, rect.dx * rect.dy / node.value);
	        row.area = 0;
	        while (child = remaining.pop()) {
	          row.push(child);
	          row.area += child.area;
	          if (child.z != null) {
	            position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
	            row.length = row.area = 0;
	          }
	        }
	        children.forEach(stickify);
	      }
	    }
	    function worst(row, u) {
	      var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length;
	      while (++i < n) {
	        if (!(r = row[i].area)) continue;
	        if (r < rmin) rmin = r;
	        if (r > rmax) rmax = r;
	      }
	      s *= s;
	      u *= u;
	      return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity;
	    }
	    function position(row, u, rect, flush) {
	      var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o;
	      if (u == rect.dx) {
	        if (flush || v > rect.dy) v = rect.dy;
	        while (++i < n) {
	          o = row[i];
	          o.x = x;
	          o.y = y;
	          o.dy = v;
	          x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);
	        }
	        o.z = true;
	        o.dx += rect.x + rect.dx - x;
	        rect.y += v;
	        rect.dy -= v;
	      } else {
	        if (flush || v > rect.dx) v = rect.dx;
	        while (++i < n) {
	          o = row[i];
	          o.x = x;
	          o.y = y;
	          o.dx = v;
	          y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);
	        }
	        o.z = false;
	        o.dy += rect.y + rect.dy - y;
	        rect.x += v;
	        rect.dx -= v;
	      }
	    }
	    function treemap(d) {
	      var nodes = stickies || hierarchy(d), root = nodes[0];
	      root.x = root.y = 0;
	      if (root.value) root.dx = size[0], root.dy = size[1]; else root.dx = root.dy = 0;
	      if (stickies) hierarchy.revalue(root);
	      scale([ root ], root.dx * root.dy / root.value);
	      (stickies ? stickify : squarify)(root);
	      if (sticky) stickies = nodes;
	      return nodes;
	    }
	    treemap.size = function(x) {
	      if (!arguments.length) return size;
	      size = x;
	      return treemap;
	    };
	    treemap.padding = function(x) {
	      if (!arguments.length) return padding;
	      function padFunction(node) {
	        var p = x.call(treemap, node, node.depth);
	        return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p);
	      }
	      function padConstant(node) {
	        return d3_layout_treemapPad(node, x);
	      }
	      var type;
	      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ], 
	      padConstant) : padConstant;
	      return treemap;
	    };
	    treemap.round = function(x) {
	      if (!arguments.length) return round != Number;
	      round = x ? Math.round : Number;
	      return treemap;
	    };
	    treemap.sticky = function(x) {
	      if (!arguments.length) return sticky;
	      sticky = x;
	      stickies = null;
	      return treemap;
	    };
	    treemap.ratio = function(x) {
	      if (!arguments.length) return ratio;
	      ratio = x;
	      return treemap;
	    };
	    treemap.mode = function(x) {
	      if (!arguments.length) return mode;
	      mode = x + "";
	      return treemap;
	    };
	    return d3_layout_hierarchyRebind(treemap, hierarchy);
	  };
	  function d3_layout_treemapPadNull(node) {
	    return {
	      x: node.x,
	      y: node.y,
	      dx: node.dx,
	      dy: node.dy
	    };
	  }
	  function d3_layout_treemapPad(node, padding) {
	    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];
	    if (dx < 0) {
	      x += dx / 2;
	      dx = 0;
	    }
	    if (dy < 0) {
	      y += dy / 2;
	      dy = 0;
	    }
	    return {
	      x: x,
	      y: y,
	      dx: dx,
	      dy: dy
	    };
	  }
	  d3.random = {
	    normal: function(µ, σ) {
	      var n = arguments.length;
	      if (n < 2) σ = 1;
	      if (n < 1) µ = 0;
	      return function() {
	        var x, y, r;
	        do {
	          x = Math.random() * 2 - 1;
	          y = Math.random() * 2 - 1;
	          r = x * x + y * y;
	        } while (!r || r > 1);
	        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
	      };
	    },
	    logNormal: function() {
	      var random = d3.random.normal.apply(d3, arguments);
	      return function() {
	        return Math.exp(random());
	      };
	    },
	    bates: function(m) {
	      var random = d3.random.irwinHall(m);
	      return function() {
	        return random() / m;
	      };
	    },
	    irwinHall: function(m) {
	      return function() {
	        for (var s = 0, j = 0; j < m; j++) s += Math.random();
	        return s;
	      };
	    }
	  };
	  d3.scale = {};
	  function d3_scaleExtent(domain) {
	    var start = domain[0], stop = domain[domain.length - 1];
	    return start < stop ? [ start, stop ] : [ stop, start ];
	  }
	  function d3_scaleRange(scale) {
	    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
	  }
	  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
	    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);
	    return function(x) {
	      return i(u(x));
	    };
	  }
	  function d3_scale_nice(domain, nice) {
	    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;
	    if (x1 < x0) {
	      dx = i0, i0 = i1, i1 = dx;
	      dx = x0, x0 = x1, x1 = dx;
	    }
	    domain[i0] = nice.floor(x0);
	    domain[i1] = nice.ceil(x1);
	    return domain;
	  }
	  function d3_scale_niceStep(step) {
	    return step ? {
	      floor: function(x) {
	        return Math.floor(x / step) * step;
	      },
	      ceil: function(x) {
	        return Math.ceil(x / step) * step;
	      }
	    } : d3_scale_niceIdentity;
	  }
	  var d3_scale_niceIdentity = {
	    floor: d3_identity,
	    ceil: d3_identity
	  };
	  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
	    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;
	    if (domain[k] < domain[0]) {
	      domain = domain.slice().reverse();
	      range = range.slice().reverse();
	    }
	    while (++j <= k) {
	      u.push(uninterpolate(domain[j - 1], domain[j]));
	      i.push(interpolate(range[j - 1], range[j]));
	    }
	    return function(x) {
	      var j = d3.bisect(domain, x, 1, k) - 1;
	      return i[j](u[j](x));
	    };
	  }
	  d3.scale.linear = function() {
	    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false);
	  };
	  function d3_scale_linear(domain, range, interpolate, clamp) {
	    var output, input;
	    function rescale() {
	      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
	      output = linear(domain, range, uninterpolate, interpolate);
	      input = linear(range, domain, uninterpolate, d3_interpolate);
	      return scale;
	    }
	    function scale(x) {
	      return output(x);
	    }
	    scale.invert = function(y) {
	      return input(y);
	    };
	    scale.domain = function(x) {
	      if (!arguments.length) return domain;
	      domain = x.map(Number);
	      return rescale();
	    };
	    scale.range = function(x) {
	      if (!arguments.length) return range;
	      range = x;
	      return rescale();
	    };
	    scale.rangeRound = function(x) {
	      return scale.range(x).interpolate(d3_interpolateRound);
	    };
	    scale.clamp = function(x) {
	      if (!arguments.length) return clamp;
	      clamp = x;
	      return rescale();
	    };
	    scale.interpolate = function(x) {
	      if (!arguments.length) return interpolate;
	      interpolate = x;
	      return rescale();
	    };
	    scale.ticks = function(m) {
	      return d3_scale_linearTicks(domain, m);
	    };
	    scale.tickFormat = function(m, format) {
	      return d3_scale_linearTickFormat(domain, m, format);
	    };
	    scale.nice = function(m) {
	      d3_scale_linearNice(domain, m);
	      return rescale();
	    };
	    scale.copy = function() {
	      return d3_scale_linear(domain, range, interpolate, clamp);
	    };
	    return rescale();
	  }
	  function d3_scale_linearRebind(scale, linear) {
	    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
	  }
	  function d3_scale_linearNice(domain, m) {
	    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
	    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
	    return domain;
	  }
	  function d3_scale_linearTickRange(domain, m) {
	    if (m == null) m = 10;
	    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;
	    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;
	    extent[0] = Math.ceil(extent[0] / step) * step;
	    extent[1] = Math.floor(extent[1] / step) * step + step * .5;
	    extent[2] = step;
	    return extent;
	  }
	  function d3_scale_linearTicks(domain, m) {
	    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
	  }
	  function d3_scale_linearTickFormat(domain, m, format) {
	    var range = d3_scale_linearTickRange(domain, m);
	    if (format) {
	      var match = d3_format_re.exec(format);
	      match.shift();
	      if (match[8] === "s") {
	        var prefix = d3.formatPrefix(Math.max(abs(range[0]), abs(range[1])));
	        if (!match[7]) match[7] = "." + d3_scale_linearPrecision(prefix.scale(range[2]));
	        match[8] = "f";
	        format = d3.format(match.join(""));
	        return function(d) {
	          return format(prefix.scale(d)) + prefix.symbol;
	        };
	      }
	      if (!match[7]) match[7] = "." + d3_scale_linearFormatPrecision(match[8], range);
	      format = match.join("");
	    } else {
	      format = ",." + d3_scale_linearPrecision(range[2]) + "f";
	    }
	    return d3.format(format);
	  }
	  var d3_scale_linearFormatSignificant = {
	    s: 1,
	    g: 1,
	    p: 1,
	    r: 1,
	    e: 1
	  };
	  function d3_scale_linearPrecision(value) {
	    return -Math.floor(Math.log(value) / Math.LN10 + .01);
	  }
	  function d3_scale_linearFormatPrecision(type, range) {
	    var p = d3_scale_linearPrecision(range[2]);
	    return type in d3_scale_linearFormatSignificant ? Math.abs(p - d3_scale_linearPrecision(Math.max(abs(range[0]), abs(range[1])))) + +(type !== "e") : p - (type === "%") * 2;
	  }
	  d3.scale.log = function() {
	    return d3_scale_log(d3.scale.linear().domain([ 0, 1 ]), 10, true, [ 1, 10 ]);
	  };
	  function d3_scale_log(linear, base, positive, domain) {
	    function log(x) {
	      return (positive ? Math.log(x < 0 ? 0 : x) : -Math.log(x > 0 ? 0 : -x)) / Math.log(base);
	    }
	    function pow(x) {
	      return positive ? Math.pow(base, x) : -Math.pow(base, -x);
	    }
	    function scale(x) {
	      return linear(log(x));
	    }
	    scale.invert = function(x) {
	      return pow(linear.invert(x));
	    };
	    scale.domain = function(x) {
	      if (!arguments.length) return domain;
	      positive = x[0] >= 0;
	      linear.domain((domain = x.map(Number)).map(log));
	      return scale;
	    };
	    scale.base = function(_) {
	      if (!arguments.length) return base;
	      base = +_;
	      linear.domain(domain.map(log));
	      return scale;
	    };
	    scale.nice = function() {
	      var niced = d3_scale_nice(domain.map(log), positive ? Math : d3_scale_logNiceNegative);
	      linear.domain(niced);
	      domain = niced.map(pow);
	      return scale;
	    };
	    scale.ticks = function() {
	      var extent = d3_scaleExtent(domain), ticks = [], u = extent[0], v = extent[1], i = Math.floor(log(u)), j = Math.ceil(log(v)), n = base % 1 ? 2 : base;
	      if (isFinite(j - i)) {
	        if (positive) {
	          for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(pow(i) * k);
	          ticks.push(pow(i));
	        } else {
	          ticks.push(pow(i));
	          for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(pow(i) * k);
	        }
	        for (i = 0; ticks[i] < u; i++) {}
	        for (j = ticks.length; ticks[j - 1] > v; j--) {}
	        ticks = ticks.slice(i, j);
	      }
	      return ticks;
	    };
	    scale.tickFormat = function(n, format) {
	      if (!arguments.length) return d3_scale_logFormat;
	      if (arguments.length < 2) format = d3_scale_logFormat; else if (typeof format !== "function") format = d3.format(format);
	      var k = Math.max(1, base * n / scale.ticks().length);
	      return function(d) {
	        var i = d / pow(Math.round(log(d)));
	        if (i * base < base - .5) i *= base;
	        return i <= k ? format(d) : "";
	      };
	    };
	    scale.copy = function() {
	      return d3_scale_log(linear.copy(), base, positive, domain);
	    };
	    return d3_scale_linearRebind(scale, linear);
	  }
	  var d3_scale_logFormat = d3.format(".0e"), d3_scale_logNiceNegative = {
	    floor: function(x) {
	      return -Math.ceil(-x);
	    },
	    ceil: function(x) {
	      return -Math.floor(-x);
	    }
	  };
	  d3.scale.pow = function() {
	    return d3_scale_pow(d3.scale.linear(), 1, [ 0, 1 ]);
	  };
	  function d3_scale_pow(linear, exponent, domain) {
	    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
	    function scale(x) {
	      return linear(powp(x));
	    }
	    scale.invert = function(x) {
	      return powb(linear.invert(x));
	    };
	    scale.domain = function(x) {
	      if (!arguments.length) return domain;
	      linear.domain((domain = x.map(Number)).map(powp));
	      return scale;
	    };
	    scale.ticks = function(m) {
	      return d3_scale_linearTicks(domain, m);
	    };
	    scale.tickFormat = function(m, format) {
	      return d3_scale_linearTickFormat(domain, m, format);
	    };
	    scale.nice = function(m) {
	      return scale.domain(d3_scale_linearNice(domain, m));
	    };
	    scale.exponent = function(x) {
	      if (!arguments.length) return exponent;
	      powp = d3_scale_powPow(exponent = x);
	      powb = d3_scale_powPow(1 / exponent);
	      linear.domain(domain.map(powp));
	      return scale;
	    };
	    scale.copy = function() {
	      return d3_scale_pow(linear.copy(), exponent, domain);
	    };
	    return d3_scale_linearRebind(scale, linear);
	  }
	  function d3_scale_powPow(e) {
	    return function(x) {
	      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
	    };
	  }
	  d3.scale.sqrt = function() {
	    return d3.scale.pow().exponent(.5);
	  };
	  d3.scale.ordinal = function() {
	    return d3_scale_ordinal([], {
	      t: "range",
	      a: [ [] ]
	    });
	  };
	  function d3_scale_ordinal(domain, ranger) {
	    var index, range, rangeBand;
	    function scale(x) {
	      return range[((index.get(x) || (ranger.t === "range" ? index.set(x, domain.push(x)) : NaN)) - 1) % range.length];
	    }
	    function steps(start, step) {
	      return d3.range(domain.length).map(function(i) {
	        return start + step * i;
	      });
	    }
	    scale.domain = function(x) {
	      if (!arguments.length) return domain;
	      domain = [];
	      index = new d3_Map();
	      var i = -1, n = x.length, xi;
	      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
	      return scale[ranger.t].apply(scale, ranger.a);
	    };
	    scale.range = function(x) {
	      if (!arguments.length) return range;
	      range = x;
	      rangeBand = 0;
	      ranger = {
	        t: "range",
	        a: arguments
	      };
	      return scale;
	    };
	    scale.rangePoints = function(x, padding) {
	      if (arguments.length < 2) padding = 0;
	      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = (start + stop) / 2, 
	      0) : (stop - start) / (domain.length - 1 + padding);
	      range = steps(start + step * padding / 2, step);
	      rangeBand = 0;
	      ranger = {
	        t: "rangePoints",
	        a: arguments
	      };
	      return scale;
	    };
	    scale.rangeRoundPoints = function(x, padding) {
	      if (arguments.length < 2) padding = 0;
	      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = stop = Math.round((start + stop) / 2), 
	      0) : (stop - start) / (domain.length - 1 + padding) | 0;
	      range = steps(start + Math.round(step * padding / 2 + (stop - start - (domain.length - 1 + padding) * step) / 2), step);
	      rangeBand = 0;
	      ranger = {
	        t: "rangeRoundPoints",
	        a: arguments
	      };
	      return scale;
	    };
	    scale.rangeBands = function(x, padding, outerPadding) {
	      if (arguments.length < 2) padding = 0;
	      if (arguments.length < 3) outerPadding = padding;
	      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);
	      range = steps(start + step * outerPadding, step);
	      if (reverse) range.reverse();
	      rangeBand = step * (1 - padding);
	      ranger = {
	        t: "rangeBands",
	        a: arguments
	      };
	      return scale;
	    };
	    scale.rangeRoundBands = function(x, padding, outerPadding) {
	      if (arguments.length < 2) padding = 0;
	      if (arguments.length < 3) outerPadding = padding;
	      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding));
	      range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step);
	      if (reverse) range.reverse();
	      rangeBand = Math.round(step * (1 - padding));
	      ranger = {
	        t: "rangeRoundBands",
	        a: arguments
	      };
	      return scale;
	    };
	    scale.rangeBand = function() {
	      return rangeBand;
	    };
	    scale.rangeExtent = function() {
	      return d3_scaleExtent(ranger.a[0]);
	    };
	    scale.copy = function() {
	      return d3_scale_ordinal(domain, ranger);
	    };
	    return scale.domain(domain);
	  }
	  d3.scale.category10 = function() {
	    return d3.scale.ordinal().range(d3_category10);
	  };
	  d3.scale.category20 = function() {
	    return d3.scale.ordinal().range(d3_category20);
	  };
	  d3.scale.category20b = function() {
	    return d3.scale.ordinal().range(d3_category20b);
	  };
	  d3.scale.category20c = function() {
	    return d3.scale.ordinal().range(d3_category20c);
	  };
	  var d3_category10 = [ 2062260, 16744206, 2924588, 14034728, 9725885, 9197131, 14907330, 8355711, 12369186, 1556175 ].map(d3_rgbString);
	  var d3_category20 = [ 2062260, 11454440, 16744206, 16759672, 2924588, 10018698, 14034728, 16750742, 9725885, 12955861, 9197131, 12885140, 14907330, 16234194, 8355711, 13092807, 12369186, 14408589, 1556175, 10410725 ].map(d3_rgbString);
	  var d3_category20b = [ 3750777, 5395619, 7040719, 10264286, 6519097, 9216594, 11915115, 13556636, 9202993, 12426809, 15186514, 15190932, 8666169, 11356490, 14049643, 15177372, 8077683, 10834324, 13528509, 14589654 ].map(d3_rgbString);
	  var d3_category20c = [ 3244733, 7057110, 10406625, 13032431, 15095053, 16616764, 16625259, 16634018, 3253076, 7652470, 10607003, 13101504, 7695281, 10394312, 12369372, 14342891, 6513507, 9868950, 12434877, 14277081 ].map(d3_rgbString);
	  d3.scale.quantile = function() {
	    return d3_scale_quantile([], []);
	  };
	  function d3_scale_quantile(domain, range) {
	    var thresholds;
	    function rescale() {
	      var k = 0, q = range.length;
	      thresholds = [];
	      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
	      return scale;
	    }
	    function scale(x) {
	      if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)];
	    }
	    scale.domain = function(x) {
	      if (!arguments.length) return domain;
	      domain = x.map(d3_number).filter(d3_numeric).sort(d3_ascending);
	      return rescale();
	    };
	    scale.range = function(x) {
	      if (!arguments.length) return range;
	      range = x;
	      return rescale();
	    };
	    scale.quantiles = function() {
	      return thresholds;
	    };
	    scale.invertExtent = function(y) {
	      y = range.indexOf(y);
	      return y < 0 ? [ NaN, NaN ] : [ y > 0 ? thresholds[y - 1] : domain[0], y < thresholds.length ? thresholds[y] : domain[domain.length - 1] ];
	    };
	    scale.copy = function() {
	      return d3_scale_quantile(domain, range);
	    };
	    return rescale();
	  }
	  d3.scale.quantize = function() {
	    return d3_scale_quantize(0, 1, [ 0, 1 ]);
	  };
	  function d3_scale_quantize(x0, x1, range) {
	    var kx, i;
	    function scale(x) {
	      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
	    }
	    function rescale() {
	      kx = range.length / (x1 - x0);
	      i = range.length - 1;
	      return scale;
	    }
	    scale.domain = function(x) {
	      if (!arguments.length) return [ x0, x1 ];
	      x0 = +x[0];
	      x1 = +x[x.length - 1];
	      return rescale();
	    };
	    scale.range = function(x) {
	      if (!arguments.length) return range;
	      range = x;
	      return rescale();
	    };
	    scale.invertExtent = function(y) {
	      y = range.indexOf(y);
	      y = y < 0 ? NaN : y / kx + x0;
	      return [ y, y + 1 / kx ];
	    };
	    scale.copy = function() {
	      return d3_scale_quantize(x0, x1, range);
	    };
	    return rescale();
	  }
	  d3.scale.threshold = function() {
	    return d3_scale_threshold([ .5 ], [ 0, 1 ]);
	  };
	  function d3_scale_threshold(domain, range) {
	    function scale(x) {
	      if (x <= x) return range[d3.bisect(domain, x)];
	    }
	    scale.domain = function(_) {
	      if (!arguments.length) return domain;
	      domain = _;
	      return scale;
	    };
	    scale.range = function(_) {
	      if (!arguments.length) return range;
	      range = _;
	      return scale;
	    };
	    scale.invertExtent = function(y) {
	      y = range.indexOf(y);
	      return [ domain[y - 1], domain[y] ];
	    };
	    scale.copy = function() {
	      return d3_scale_threshold(domain, range);
	    };
	    return scale;
	  }
	  d3.scale.identity = function() {
	    return d3_scale_identity([ 0, 1 ]);
	  };
	  function d3_scale_identity(domain) {
	    function identity(x) {
	      return +x;
	    }
	    identity.invert = identity;
	    identity.domain = identity.range = function(x) {
	      if (!arguments.length) return domain;
	      domain = x.map(identity);
	      return identity;
	    };
	    identity.ticks = function(m) {
	      return d3_scale_linearTicks(domain, m);
	    };
	    identity.tickFormat = function(m, format) {
	      return d3_scale_linearTickFormat(domain, m, format);
	    };
	    identity.copy = function() {
	      return d3_scale_identity(domain);
	    };
	    return identity;
	  }
	  d3.svg = {};
	  function d3_zero() {
	    return 0;
	  }
	  d3.svg.arc = function() {
	    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, cornerRadius = d3_zero, padRadius = d3_svg_arcAuto, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle, padAngle = d3_svg_arcPadAngle;
	    function arc() {
	      var r0 = Math.max(0, +innerRadius.apply(this, arguments)), r1 = Math.max(0, +outerRadius.apply(this, arguments)), a0 = startAngle.apply(this, arguments) - halfπ, a1 = endAngle.apply(this, arguments) - halfπ, da = Math.abs(a1 - a0), cw = a0 > a1 ? 0 : 1;
	      if (r1 < r0) rc = r1, r1 = r0, r0 = rc;
	      if (da >= τε) return circleSegment(r1, cw) + (r0 ? circleSegment(r0, 1 - cw) : "") + "Z";
	      var rc, cr, rp, ap, p0 = 0, p1 = 0, x0, y0, x1, y1, x2, y2, x3, y3, path = [];
	      if (ap = (+padAngle.apply(this, arguments) || 0) / 2) {
	        rp = padRadius === d3_svg_arcAuto ? Math.sqrt(r0 * r0 + r1 * r1) : +padRadius.apply(this, arguments);
	        if (!cw) p1 *= -1;
	        if (r1) p1 = d3_asin(rp / r1 * Math.sin(ap));
	        if (r0) p0 = d3_asin(rp / r0 * Math.sin(ap));
	      }
	      if (r1) {
	        x0 = r1 * Math.cos(a0 + p1);
	        y0 = r1 * Math.sin(a0 + p1);
	        x1 = r1 * Math.cos(a1 - p1);
	        y1 = r1 * Math.sin(a1 - p1);
	        var l1 = Math.abs(a1 - a0 - 2 * p1) <= π ? 0 : 1;
	        if (p1 && d3_svg_arcSweep(x0, y0, x1, y1) === cw ^ l1) {
	          var h1 = (a0 + a1) / 2;
	          x0 = r1 * Math.cos(h1);
	          y0 = r1 * Math.sin(h1);
	          x1 = y1 = null;
	        }
	      } else {
	        x0 = y0 = 0;
	      }
	      if (r0) {
	        x2 = r0 * Math.cos(a1 - p0);
	        y2 = r0 * Math.sin(a1 - p0);
	        x3 = r0 * Math.cos(a0 + p0);
	        y3 = r0 * Math.sin(a0 + p0);
	        var l0 = Math.abs(a0 - a1 + 2 * p0) <= π ? 0 : 1;
	        if (p0 && d3_svg_arcSweep(x2, y2, x3, y3) === 1 - cw ^ l0) {
	          var h0 = (a0 + a1) / 2;
	          x2 = r0 * Math.cos(h0);
	          y2 = r0 * Math.sin(h0);
	          x3 = y3 = null;
	        }
	      } else {
	        x2 = y2 = 0;
	      }
	      if (da > ε && (rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments))) > .001) {
	        cr = r0 < r1 ^ cw ? 0 : 1;
	        var rc1 = rc, rc0 = rc;
	        if (da < π) {
	          var oc = x3 == null ? [ x2, y2 ] : x1 == null ? [ x0, y0 ] : d3_geom_polygonIntersect([ x0, y0 ], [ x3, y3 ], [ x1, y1 ], [ x2, y2 ]), ax = x0 - oc[0], ay = y0 - oc[1], bx = x1 - oc[0], by = y1 - oc[1], kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]);
	          rc0 = Math.min(rc, (r0 - lc) / (kc - 1));
	          rc1 = Math.min(rc, (r1 - lc) / (kc + 1));
	        }
	        if (x1 != null) {
	          var t30 = d3_svg_arcCornerTangents(x3 == null ? [ x2, y2 ] : [ x3, y3 ], [ x0, y0 ], r1, rc1, cw), t12 = d3_svg_arcCornerTangents([ x1, y1 ], [ x2, y2 ], r1, rc1, cw);
	          if (rc === rc1) {
	            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 0,", cr, " ", t30[1], "A", r1, ",", r1, " 0 ", 1 - cw ^ d3_svg_arcSweep(t30[1][0], t30[1][1], t12[1][0], t12[1][1]), ",", cw, " ", t12[1], "A", rc1, ",", rc1, " 0 0,", cr, " ", t12[0]);
	          } else {
	            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 1,", cr, " ", t12[0]);
	          }
	        } else {
	          path.push("M", x0, ",", y0);
	        }
	        if (x3 != null) {
	          var t03 = d3_svg_arcCornerTangents([ x0, y0 ], [ x3, y3 ], r0, -rc0, cw), t21 = d3_svg_arcCornerTangents([ x2, y2 ], x1 == null ? [ x0, y0 ] : [ x1, y1 ], r0, -rc0, cw);
	          if (rc === rc0) {
	            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t21[1], "A", r0, ",", r0, " 0 ", cw ^ d3_svg_arcSweep(t21[1][0], t21[1][1], t03[1][0], t03[1][1]), ",", 1 - cw, " ", t03[1], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
	          } else {
	            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
	          }
	        } else {
	          path.push("L", x2, ",", y2);
	        }
	      } else {
	        path.push("M", x0, ",", y0);
	        if (x1 != null) path.push("A", r1, ",", r1, " 0 ", l1, ",", cw, " ", x1, ",", y1);
	        path.push("L", x2, ",", y2);
	        if (x3 != null) path.push("A", r0, ",", r0, " 0 ", l0, ",", 1 - cw, " ", x3, ",", y3);
	      }
	      path.push("Z");
	      return path.join("");
	    }
	    function circleSegment(r1, cw) {
	      return "M0," + r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + -r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + r1;
	    }
	    arc.innerRadius = function(v) {
	      if (!arguments.length) return innerRadius;
	      innerRadius = d3_functor(v);
	      return arc;
	    };
	    arc.outerRadius = function(v) {
	      if (!arguments.length) return outerRadius;
	      outerRadius = d3_functor(v);
	      return arc;
	    };
	    arc.cornerRadius = function(v) {
	      if (!arguments.length) return cornerRadius;
	      cornerRadius = d3_functor(v);
	      return arc;
	    };
	    arc.padRadius = function(v) {
	      if (!arguments.length) return padRadius;
	      padRadius = v == d3_svg_arcAuto ? d3_svg_arcAuto : d3_functor(v);
	      return arc;
	    };
	    arc.startAngle = function(v) {
	      if (!arguments.length) return startAngle;
	      startAngle = d3_functor(v);
	      return arc;
	    };
	    arc.endAngle = function(v) {
	      if (!arguments.length) return endAngle;
	      endAngle = d3_functor(v);
	      return arc;
	    };
	    arc.padAngle = function(v) {
	      if (!arguments.length) return padAngle;
	      padAngle = d3_functor(v);
	      return arc;
	    };
	    arc.centroid = function() {
	      var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - halfπ;
	      return [ Math.cos(a) * r, Math.sin(a) * r ];
	    };
	    return arc;
	  };
	  var d3_svg_arcAuto = "auto";
	  function d3_svg_arcInnerRadius(d) {
	    return d.innerRadius;
	  }
	  function d3_svg_arcOuterRadius(d) {
	    return d.outerRadius;
	  }
	  function d3_svg_arcStartAngle(d) {
	    return d.startAngle;
	  }
	  function d3_svg_arcEndAngle(d) {
	    return d.endAngle;
	  }
	  function d3_svg_arcPadAngle(d) {
	    return d && d.padAngle;
	  }
	  function d3_svg_arcSweep(x0, y0, x1, y1) {
	    return (x0 - x1) * y0 - (y0 - y1) * x0 > 0 ? 0 : 1;
	  }
	  function d3_svg_arcCornerTangents(p0, p1, r1, rc, cw) {
	    var x01 = p0[0] - p1[0], y01 = p0[1] - p1[1], lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), ox = lo * y01, oy = -lo * x01, x1 = p0[0] + ox, y1 = p0[1] + oy, x2 = p1[0] + ox, y2 = p1[1] + oy, x3 = (x1 + x2) / 2, y3 = (y1 + y2) / 2, dx = x2 - x1, dy = y2 - y1, d2 = dx * dx + dy * dy, r = r1 - rc, D = x1 * y2 - x2 * y1, d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)), cx0 = (D * dy - dx * d) / d2, cy0 = (-D * dx - dy * d) / d2, cx1 = (D * dy + dx * d) / d2, cy1 = (-D * dx + dy * d) / d2, dx0 = cx0 - x3, dy0 = cy0 - y3, dx1 = cx1 - x3, dy1 = cy1 - y3;
	    if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;
	    return [ [ cx0 - ox, cy0 - oy ], [ cx0 * r1 / r, cy0 * r1 / r ] ];
	  }
	  function d3_svg_line(projection) {
	    var x = d3_geom_pointX, y = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
	    function line(data) {
	      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
	      function segment() {
	        segments.push("M", interpolate(projection(points), tension));
	      }
	      while (++i < n) {
	        if (defined.call(this, d = data[i], i)) {
	          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);
	        } else if (points.length) {
	          segment();
	          points = [];
	        }
	      }
	      if (points.length) segment();
	      return segments.length ? segments.join("") : null;
	    }
	    line.x = function(_) {
	      if (!arguments.length) return x;
	      x = _;
	      return line;
	    };
	    line.y = function(_) {
	      if (!arguments.length) return y;
	      y = _;
	      return line;
	    };
	    line.defined = function(_) {
	      if (!arguments.length) return defined;
	      defined = _;
	      return line;
	    };
	    line.interpolate = function(_) {
	      if (!arguments.length) return interpolateKey;
	      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
	      return line;
	    };
	    line.tension = function(_) {
	      if (!arguments.length) return tension;
	      tension = _;
	      return line;
	    };
	    return line;
	  }
	  d3.svg.line = function() {
	    return d3_svg_line(d3_identity);
	  };
	  var d3_svg_lineInterpolators = d3.map({
	    linear: d3_svg_lineLinear,
	    "linear-closed": d3_svg_lineLinearClosed,
	    step: d3_svg_lineStep,
	    "step-before": d3_svg_lineStepBefore,
	    "step-after": d3_svg_lineStepAfter,
	    basis: d3_svg_lineBasis,
	    "basis-open": d3_svg_lineBasisOpen,
	    "basis-closed": d3_svg_lineBasisClosed,
	    bundle: d3_svg_lineBundle,
	    cardinal: d3_svg_lineCardinal,
	    "cardinal-open": d3_svg_lineCardinalOpen,
	    "cardinal-closed": d3_svg_lineCardinalClosed,
	    monotone: d3_svg_lineMonotone
	  });
	  d3_svg_lineInterpolators.forEach(function(key, value) {
	    value.key = key;
	    value.closed = /-closed$/.test(key);
	  });
	  function d3_svg_lineLinear(points) {
	    return points.length > 1 ? points.join("L") : points + "Z";
	  }
	  function d3_svg_lineLinearClosed(points) {
	    return points.join("L") + "Z";
	  }
	  function d3_svg_lineStep(points) {
	    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
	    while (++i < n) path.push("H", (p[0] + (p = points[i])[0]) / 2, "V", p[1]);
	    if (n > 1) path.push("H", p[0]);
	    return path.join("");
	  }
	  function d3_svg_lineStepBefore(points) {
	    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
	    while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
	    return path.join("");
	  }
	  function d3_svg_lineStepAfter(points) {
	    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
	    while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
	    return path.join("");
	  }
	  function d3_svg_lineCardinalOpen(points, tension) {
	    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, -1), d3_svg_lineCardinalTangents(points, tension));
	  }
	  function d3_svg_lineCardinalClosed(points, tension) {
	    return points.length < 3 ? d3_svg_lineLinearClosed(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), 
	    points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));
	  }
	  function d3_svg_lineCardinal(points, tension) {
	    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
	  }
	  function d3_svg_lineHermite(points, tangents) {
	    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {
	      return d3_svg_lineLinear(points);
	    }
	    var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;
	    if (quad) {
	      path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];
	      p0 = points[1];
	      pi = 2;
	    }
	    if (tangents.length > 1) {
	      t = tangents[1];
	      p = points[pi];
	      pi++;
	      path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
	      for (var i = 2; i < tangents.length; i++, pi++) {
	        p = points[pi];
	        t = tangents[i];
	        path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
	      }
	    }
	    if (quad) {
	      var lp = points[pi];
	      path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];
	    }
	    return path;
	  }
	  function d3_svg_lineCardinalTangents(points, tension) {
	    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;
	    while (++i < n) {
	      p0 = p1;
	      p1 = p2;
	      p2 = points[i];
	      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);
	    }
	    return tangents;
	  }
	  function d3_svg_lineBasis(points) {
	    if (points.length < 3) return d3_svg_lineLinear(points);
	    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0, "L", d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
	    points.push(points[n - 1]);
	    while (++i <= n) {
	      pi = points[i];
	      px.shift();
	      px.push(pi[0]);
	      py.shift();
	      py.push(pi[1]);
	      d3_svg_lineBasisBezier(path, px, py);
	    }
	    points.pop();
	    path.push("L", pi);
	    return path.join("");
	  }
	  function d3_svg_lineBasisOpen(points) {
	    if (points.length < 4) return d3_svg_lineLinear(points);
	    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];
	    while (++i < 3) {
	      pi = points[i];
	      px.push(pi[0]);
	      py.push(pi[1]);
	    }
	    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
	    --i;
	    while (++i < n) {
	      pi = points[i];
	      px.shift();
	      px.push(pi[0]);
	      py.shift();
	      py.push(pi[1]);
	      d3_svg_lineBasisBezier(path, px, py);
	    }
	    return path.join("");
	  }
	  function d3_svg_lineBasisClosed(points) {
	    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];
	    while (++i < 4) {
	      pi = points[i % n];
	      px.push(pi[0]);
	      py.push(pi[1]);
	    }
	    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
	    --i;
	    while (++i < m) {
	      pi = points[i % n];
	      px.shift();
	      px.push(pi[0]);
	      py.shift();
	      py.push(pi[1]);
	      d3_svg_lineBasisBezier(path, px, py);
	    }
	    return path.join("");
	  }
	  function d3_svg_lineBundle(points, tension) {
	    var n = points.length - 1;
	    if (n) {
	      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;
	      while (++i <= n) {
	        p = points[i];
	        t = i / n;
	        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
	        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
	      }
	    }
	    return d3_svg_lineBasis(points);
	  }
	  function d3_svg_lineDot4(a, b) {
	    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
	  }
	  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];
	  function d3_svg_lineBasisBezier(path, x, y) {
	    path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
	  }
	  function d3_svg_lineSlope(p0, p1) {
	    return (p1[1] - p0[1]) / (p1[0] - p0[0]);
	  }
	  function d3_svg_lineFiniteDifferences(points) {
	    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);
	    while (++i < j) {
	      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;
	    }
	    m[i] = d;
	    return m;
	  }
	  function d3_svg_lineMonotoneTangents(points) {
	    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;
	    while (++i < j) {
	      d = d3_svg_lineSlope(points[i], points[i + 1]);
	      if (abs(d) < ε) {
	        m[i] = m[i + 1] = 0;
	      } else {
	        a = m[i] / d;
	        b = m[i + 1] / d;
	        s = a * a + b * b;
	        if (s > 9) {
	          s = d * 3 / Math.sqrt(s);
	          m[i] = s * a;
	          m[i + 1] = s * b;
	        }
	      }
	    }
	    i = -1;
	    while (++i <= j) {
	      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));
	      tangents.push([ s || 0, m[i] * s || 0 ]);
	    }
	    return tangents;
	  }
	  function d3_svg_lineMonotone(points) {
	    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
	  }
	  d3.svg.line.radial = function() {
	    var line = d3_svg_line(d3_svg_lineRadial);
	    line.radius = line.x, delete line.x;
	    line.angle = line.y, delete line.y;
	    return line;
	  };
	  function d3_svg_lineRadial(points) {
	    var point, i = -1, n = points.length, r, a;
	    while (++i < n) {
	      point = points[i];
	      r = point[0];
	      a = point[1] - halfπ;
	      point[0] = r * Math.cos(a);
	      point[1] = r * Math.sin(a);
	    }
	    return points;
	  }
	  function d3_svg_area(projection) {
	    var x0 = d3_geom_pointX, x1 = d3_geom_pointX, y0 = 0, y1 = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
	    function area(data) {
	      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {
	        return x;
	      } : d3_functor(x1), fy1 = y0 === y1 ? function() {
	        return y;
	      } : d3_functor(y1), x, y;
	      function segment() {
	        segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
	      }
	      while (++i < n) {
	        if (defined.call(this, d = data[i], i)) {
	          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);
	          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);
	        } else if (points0.length) {
	          segment();
	          points0 = [];
	          points1 = [];
	        }
	      }
	      if (points0.length) segment();
	      return segments.length ? segments.join("") : null;
	    }
	    area.x = function(_) {
	      if (!arguments.length) return x1;
	      x0 = x1 = _;
	      return area;
	    };
	    area.x0 = function(_) {
	      if (!arguments.length) return x0;
	      x0 = _;
	      return area;
	    };
	    area.x1 = function(_) {
	      if (!arguments.length) return x1;
	      x1 = _;
	      return area;
	    };
	    area.y = function(_) {
	      if (!arguments.length) return y1;
	      y0 = y1 = _;
	      return area;
	    };
	    area.y0 = function(_) {
	      if (!arguments.length) return y0;
	      y0 = _;
	      return area;
	    };
	    area.y1 = function(_) {
	      if (!arguments.length) return y1;
	      y1 = _;
	      return area;
	    };
	    area.defined = function(_) {
	      if (!arguments.length) return defined;
	      defined = _;
	      return area;
	    };
	    area.interpolate = function(_) {
	      if (!arguments.length) return interpolateKey;
	      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
	      interpolateReverse = interpolate.reverse || interpolate;
	      L = interpolate.closed ? "M" : "L";
	      return area;
	    };
	    area.tension = function(_) {
	      if (!arguments.length) return tension;
	      tension = _;
	      return area;
	    };
	    return area;
	  }
	  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
	  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
	  d3.svg.area = function() {
	    return d3_svg_area(d3_identity);
	  };
	  d3.svg.area.radial = function() {
	    var area = d3_svg_area(d3_svg_lineRadial);
	    area.radius = area.x, delete area.x;
	    area.innerRadius = area.x0, delete area.x0;
	    area.outerRadius = area.x1, delete area.x1;
	    area.angle = area.y, delete area.y;
	    area.startAngle = area.y0, delete area.y0;
	    area.endAngle = area.y1, delete area.y1;
	    return area;
	  };
	  d3.svg.chord = function() {
	    var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
	    function chord(d, i) {
	      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);
	      return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";
	    }
	    function subgroup(self, f, d, i) {
	      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) - halfπ, a1 = endAngle.call(self, subgroup, i) - halfπ;
	      return {
	        r: r,
	        a0: a0,
	        a1: a1,
	        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],
	        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]
	      };
	    }
	    function equals(a, b) {
	      return a.a0 == b.a0 && a.a1 == b.a1;
	    }
	    function arc(r, p, a) {
	      return "A" + r + "," + r + " 0 " + +(a > π) + ",1 " + p;
	    }
	    function curve(r0, p0, r1, p1) {
	      return "Q 0,0 " + p1;
	    }
	    chord.radius = function(v) {
	      if (!arguments.length) return radius;
	      radius = d3_functor(v);
	      return chord;
	    };
	    chord.source = function(v) {
	      if (!arguments.length) return source;
	      source = d3_functor(v);
	      return chord;
	    };
	    chord.target = function(v) {
	      if (!arguments.length) return target;
	      target = d3_functor(v);
	      return chord;
	    };
	    chord.startAngle = function(v) {
	      if (!arguments.length) return startAngle;
	      startAngle = d3_functor(v);
	      return chord;
	    };
	    chord.endAngle = function(v) {
	      if (!arguments.length) return endAngle;
	      endAngle = d3_functor(v);
	      return chord;
	    };
	    return chord;
	  };
	  function d3_svg_chordRadius(d) {
	    return d.radius;
	  }
	  d3.svg.diagonal = function() {
	    var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection;
	    function diagonal(d, i) {
	      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {
	        x: p0.x,
	        y: m
	      }, {
	        x: p3.x,
	        y: m
	      }, p3 ];
	      p = p.map(projection);
	      return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
	    }
	    diagonal.source = function(x) {
	      if (!arguments.length) return source;
	      source = d3_functor(x);
	      return diagonal;
	    };
	    diagonal.target = function(x) {
	      if (!arguments.length) return target;
	      target = d3_functor(x);
	      return diagonal;
	    };
	    diagonal.projection = function(x) {
	      if (!arguments.length) return projection;
	      projection = x;
	      return diagonal;
	    };
	    return diagonal;
	  };
	  function d3_svg_diagonalProjection(d) {
	    return [ d.x, d.y ];
	  }
	  d3.svg.diagonal.radial = function() {
	    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;
	    diagonal.projection = function(x) {
	      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;
	    };
	    return diagonal;
	  };
	  function d3_svg_diagonalRadialProjection(projection) {
	    return function() {
	      var d = projection.apply(this, arguments), r = d[0], a = d[1] - halfπ;
	      return [ r * Math.cos(a), r * Math.sin(a) ];
	    };
	  }
	  d3.svg.symbol = function() {
	    var type = d3_svg_symbolType, size = d3_svg_symbolSize;
	    function symbol(d, i) {
	      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
	    }
	    symbol.type = function(x) {
	      if (!arguments.length) return type;
	      type = d3_functor(x);
	      return symbol;
	    };
	    symbol.size = function(x) {
	      if (!arguments.length) return size;
	      size = d3_functor(x);
	      return symbol;
	    };
	    return symbol;
	  };
	  function d3_svg_symbolSize() {
	    return 64;
	  }
	  function d3_svg_symbolType() {
	    return "circle";
	  }
	  function d3_svg_symbolCircle(size) {
	    var r = Math.sqrt(size / π);
	    return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
	  }
	  var d3_svg_symbols = d3.map({
	    circle: d3_svg_symbolCircle,
	    cross: function(size) {
	      var r = Math.sqrt(size / 5) / 2;
	      return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";
	    },
	    diamond: function(size) {
	      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;
	      return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";
	    },
	    square: function(size) {
	      var r = Math.sqrt(size) / 2;
	      return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";
	    },
	    "triangle-down": function(size) {
	      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
	      return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";
	    },
	    "triangle-up": function(size) {
	      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
	      return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";
	    }
	  });
	  d3.svg.symbolTypes = d3_svg_symbols.keys();
	  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians);
	  d3_selectionPrototype.transition = function(name) {
	    var id = d3_transitionInheritId || ++d3_transitionId, ns = d3_transitionNamespace(name), subgroups = [], subgroup, node, transition = d3_transitionInherit || {
	      time: Date.now(),
	      ease: d3_ease_cubicInOut,
	      delay: 0,
	      duration: 250
	    };
	    for (var j = -1, m = this.length; ++j < m; ) {
	      subgroups.push(subgroup = []);
	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
	        if (node = group[i]) d3_transitionNode(node, i, ns, id, transition);
	        subgroup.push(node);
	      }
	    }
	    return d3_transition(subgroups, ns, id);
	  };
	  d3_selectionPrototype.interrupt = function(name) {
	    return this.each(name == null ? d3_selection_interrupt : d3_selection_interruptNS(d3_transitionNamespace(name)));
	  };
	  var d3_selection_interrupt = d3_selection_interruptNS(d3_transitionNamespace());
	  function d3_selection_interruptNS(ns) {
	    return function() {
	      var lock, activeId, active;
	      if ((lock = this[ns]) && (active = lock[activeId = lock.active])) {
	        active.timer.c = null;
	        active.timer.t = NaN;
	        if (--lock.count) delete lock[activeId]; else delete this[ns];
	        lock.active += .5;
	        active.event && active.event.interrupt.call(this, this.__data__, active.index);
	      }
	    };
	  }
	  function d3_transition(groups, ns, id) {
	    d3_subclass(groups, d3_transitionPrototype);
	    groups.namespace = ns;
	    groups.id = id;
	    return groups;
	  }
	  var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit;
	  d3_transitionPrototype.call = d3_selectionPrototype.call;
	  d3_transitionPrototype.empty = d3_selectionPrototype.empty;
	  d3_transitionPrototype.node = d3_selectionPrototype.node;
	  d3_transitionPrototype.size = d3_selectionPrototype.size;
	  d3.transition = function(selection, name) {
	    return selection && selection.transition ? d3_transitionInheritId ? selection.transition(name) : selection : d3.selection().transition(selection);
	  };
	  d3.transition.prototype = d3_transitionPrototype;
	  d3_transitionPrototype.select = function(selector) {
	    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnode, node;
	    selector = d3_selection_selector(selector);
	    for (var j = -1, m = this.length; ++j < m; ) {
	      subgroups.push(subgroup = []);
	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
	        if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i, j))) {
	          if ("__data__" in node) subnode.__data__ = node.__data__;
	          d3_transitionNode(subnode, i, ns, id, node[ns][id]);
	          subgroup.push(subnode);
	        } else {
	          subgroup.push(null);
	        }
	      }
	    }
	    return d3_transition(subgroups, ns, id);
	  };
	  d3_transitionPrototype.selectAll = function(selector) {
	    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnodes, node, subnode, transition;
	    selector = d3_selection_selectorAll(selector);
	    for (var j = -1, m = this.length; ++j < m; ) {
	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
	        if (node = group[i]) {
	          transition = node[ns][id];
	          subnodes = selector.call(node, node.__data__, i, j);
	          subgroups.push(subgroup = []);
	          for (var k = -1, o = subnodes.length; ++k < o; ) {
	            if (subnode = subnodes[k]) d3_transitionNode(subnode, k, ns, id, transition);
	            subgroup.push(subnode);
	          }
	        }
	      }
	    }
	    return d3_transition(subgroups, ns, id);
	  };
	  d3_transitionPrototype.filter = function(filter) {
	    var subgroups = [], subgroup, group, node;
	    if (typeof filter !== "function") filter = d3_selection_filter(filter);
	    for (var j = 0, m = this.length; j < m; j++) {
	      subgroups.push(subgroup = []);
	      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
	        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
	          subgroup.push(node);
	        }
	      }
	    }
	    return d3_transition(subgroups, this.namespace, this.id);
	  };
	  d3_transitionPrototype.tween = function(name, tween) {
	    var id = this.id, ns = this.namespace;
	    if (arguments.length < 2) return this.node()[ns][id].tween.get(name);
	    return d3_selection_each(this, tween == null ? function(node) {
	      node[ns][id].tween.remove(name);
	    } : function(node) {
	      node[ns][id].tween.set(name, tween);
	    });
	  };
	  function d3_transition_tween(groups, name, value, tween) {
	    var id = groups.id, ns = groups.namespace;
	    return d3_selection_each(groups, typeof value === "function" ? function(node, i, j) {
	      node[ns][id].tween.set(name, tween(value.call(node, node.__data__, i, j)));
	    } : (value = tween(value), function(node) {
	      node[ns][id].tween.set(name, value);
	    }));
	  }
	  d3_transitionPrototype.attr = function(nameNS, value) {
	    if (arguments.length < 2) {
	      for (value in nameNS) this.attr(value, nameNS[value]);
	      return this;
	    }
	    var interpolate = nameNS == "transform" ? d3_interpolateTransform : d3_interpolate, name = d3.ns.qualify(nameNS);
	    function attrNull() {
	      this.removeAttribute(name);
	    }
	    function attrNullNS() {
	      this.removeAttributeNS(name.space, name.local);
	    }
	    function attrTween(b) {
	      return b == null ? attrNull : (b += "", function() {
	        var a = this.getAttribute(name), i;
	        return a !== b && (i = interpolate(a, b), function(t) {
	          this.setAttribute(name, i(t));
	        });
	      });
	    }
	    function attrTweenNS(b) {
	      return b == null ? attrNullNS : (b += "", function() {
	        var a = this.getAttributeNS(name.space, name.local), i;
	        return a !== b && (i = interpolate(a, b), function(t) {
	          this.setAttributeNS(name.space, name.local, i(t));
	        });
	      });
	    }
	    return d3_transition_tween(this, "attr." + nameNS, value, name.local ? attrTweenNS : attrTween);
	  };
	  d3_transitionPrototype.attrTween = function(nameNS, tween) {
	    var name = d3.ns.qualify(nameNS);
	    function attrTween(d, i) {
	      var f = tween.call(this, d, i, this.getAttribute(name));
	      return f && function(t) {
	        this.setAttribute(name, f(t));
	      };
	    }
	    function attrTweenNS(d, i) {
	      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
	      return f && function(t) {
	        this.setAttributeNS(name.space, name.local, f(t));
	      };
	    }
	    return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
	  };
	  d3_transitionPrototype.style = function(name, value, priority) {
	    var n = arguments.length;
	    if (n < 3) {
	      if (typeof name !== "string") {
	        if (n < 2) value = "";
	        for (priority in name) this.style(priority, name[priority], value);
	        return this;
	      }
	      priority = "";
	    }
	    function styleNull() {
	      this.style.removeProperty(name);
	    }
	    function styleString(b) {
	      return b == null ? styleNull : (b += "", function() {
	        var a = d3_window(this).getComputedStyle(this, null).getPropertyValue(name), i;
	        return a !== b && (i = d3_interpolate(a, b), function(t) {
	          this.style.setProperty(name, i(t), priority);
	        });
	      });
	    }
	    return d3_transition_tween(this, "style." + name, value, styleString);
	  };
	  d3_transitionPrototype.styleTween = function(name, tween, priority) {
	    if (arguments.length < 3) priority = "";
	    function styleTween(d, i) {
	      var f = tween.call(this, d, i, d3_window(this).getComputedStyle(this, null).getPropertyValue(name));
	      return f && function(t) {
	        this.style.setProperty(name, f(t), priority);
	      };
	    }
	    return this.tween("style." + name, styleTween);
	  };
	  d3_transitionPrototype.text = function(value) {
	    return d3_transition_tween(this, "text", value, d3_transition_text);
	  };
	  function d3_transition_text(b) {
	    if (b == null) b = "";
	    return function() {
	      this.textContent = b;
	    };
	  }
	  d3_transitionPrototype.remove = function() {
	    var ns = this.namespace;
	    return this.each("end.transition", function() {
	      var p;
	      if (this[ns].count < 2 && (p = this.parentNode)) p.removeChild(this);
	    });
	  };
	  d3_transitionPrototype.ease = function(value) {
	    var id = this.id, ns = this.namespace;
	    if (arguments.length < 1) return this.node()[ns][id].ease;
	    if (typeof value !== "function") value = d3.ease.apply(d3, arguments);
	    return d3_selection_each(this, function(node) {
	      node[ns][id].ease = value;
	    });
	  };
	  d3_transitionPrototype.delay = function(value) {
	    var id = this.id, ns = this.namespace;
	    if (arguments.length < 1) return this.node()[ns][id].delay;
	    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
	      node[ns][id].delay = +value.call(node, node.__data__, i, j);
	    } : (value = +value, function(node) {
	      node[ns][id].delay = value;
	    }));
	  };
	  d3_transitionPrototype.duration = function(value) {
	    var id = this.id, ns = this.namespace;
	    if (arguments.length < 1) return this.node()[ns][id].duration;
	    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
	      node[ns][id].duration = Math.max(1, value.call(node, node.__data__, i, j));
	    } : (value = Math.max(1, value), function(node) {
	      node[ns][id].duration = value;
	    }));
	  };
	  d3_transitionPrototype.each = function(type, listener) {
	    var id = this.id, ns = this.namespace;
	    if (arguments.length < 2) {
	      var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId;
	      try {
	        d3_transitionInheritId = id;
	        d3_selection_each(this, function(node, i, j) {
	          d3_transitionInherit = node[ns][id];
	          type.call(node, node.__data__, i, j);
	        });
	      } finally {
	        d3_transitionInherit = inherit;
	        d3_transitionInheritId = inheritId;
	      }
	    } else {
	      d3_selection_each(this, function(node) {
	        var transition = node[ns][id];
	        (transition.event || (transition.event = d3.dispatch("start", "end", "interrupt"))).on(type, listener);
	      });
	    }
	    return this;
	  };
	  d3_transitionPrototype.transition = function() {
	    var id0 = this.id, id1 = ++d3_transitionId, ns = this.namespace, subgroups = [], subgroup, group, node, transition;
	    for (var j = 0, m = this.length; j < m; j++) {
	      subgroups.push(subgroup = []);
	      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
	        if (node = group[i]) {
	          transition = node[ns][id0];
	          d3_transitionNode(node, i, ns, id1, {
	            time: transition.time,
	            ease: transition.ease,
	            delay: transition.delay + transition.duration,
	            duration: transition.duration
	          });
	        }
	        subgroup.push(node);
	      }
	    }
	    return d3_transition(subgroups, ns, id1);
	  };
	  function d3_transitionNamespace(name) {
	    return name == null ? "__transition__" : "__transition_" + name + "__";
	  }
	  function d3_transitionNode(node, i, ns, id, inherit) {
	    var lock = node[ns] || (node[ns] = {
	      active: 0,
	      count: 0
	    }), transition = lock[id], time, timer, duration, ease, tweens;
	    function schedule(elapsed) {
	      var delay = transition.delay;
	      timer.t = delay + time;
	      if (delay <= elapsed) return start(elapsed - delay);
	      timer.c = start;
	    }
	    function start(elapsed) {
	      var activeId = lock.active, active = lock[activeId];
	      if (active) {
	        active.timer.c = null;
	        active.timer.t = NaN;
	        --lock.count;
	        delete lock[activeId];
	        active.event && active.event.interrupt.call(node, node.__data__, active.index);
	      }
	      for (var cancelId in lock) {
	        if (+cancelId < id) {
	          var cancel = lock[cancelId];
	          cancel.timer.c = null;
	          cancel.timer.t = NaN;
	          --lock.count;
	          delete lock[cancelId];
	        }
	      }
	      timer.c = tick;
	      d3_timer(function() {
	        if (timer.c && tick(elapsed || 1)) {
	          timer.c = null;
	          timer.t = NaN;
	        }
	        return 1;
	      }, 0, time);
	      lock.active = id;
	      transition.event && transition.event.start.call(node, node.__data__, i);
	      tweens = [];
	      transition.tween.forEach(function(key, value) {
	        if (value = value.call(node, node.__data__, i)) {
	          tweens.push(value);
	        }
	      });
	      ease = transition.ease;
	      duration = transition.duration;
	    }
	    function tick(elapsed) {
	      var t = elapsed / duration, e = ease(t), n = tweens.length;
	      while (n > 0) {
	        tweens[--n].call(node, e);
	      }
	      if (t >= 1) {
	        transition.event && transition.event.end.call(node, node.__data__, i);
	        if (--lock.count) delete lock[id]; else delete node[ns];
	        return 1;
	      }
	    }
	    if (!transition) {
	      time = inherit.time;
	      timer = d3_timer(schedule, 0, time);
	      transition = lock[id] = {
	        tween: new d3_Map(),
	        time: time,
	        timer: timer,
	        delay: inherit.delay,
	        duration: inherit.duration,
	        ease: inherit.ease,
	        index: i
	      };
	      inherit = null;
	      ++lock.count;
	    }
	  }
	  d3.svg.axis = function() {
	    var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_;
	    function axis(g) {
	      g.each(function() {
	        var g = d3.select(this);
	        var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = scale.copy();
	        var ticks = tickValues == null ? scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain() : tickValues, tickFormat = tickFormat_ == null ? scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity : tickFormat_, tick = g.selectAll(".tick").data(ticks, scale1), tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", ε), tickExit = d3.transition(tick.exit()).style("opacity", ε).remove(), tickUpdate = d3.transition(tick.order()).style("opacity", 1), tickSpacing = Math.max(innerTickSize, 0) + tickPadding, tickTransform;
	        var range = d3_scaleRange(scale1), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"), 
	        d3.transition(path));
	        tickEnter.append("line");
	        tickEnter.append("text");
	        var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text"), sign = orient === "top" || orient === "left" ? -1 : 1, x1, x2, y1, y2;
	        if (orient === "bottom" || orient === "top") {
	          tickTransform = d3_svg_axisX, x1 = "x", y1 = "y", x2 = "x2", y2 = "y2";
	          text.attr("dy", sign < 0 ? "0em" : ".71em").style("text-anchor", "middle");
	          pathUpdate.attr("d", "M" + range[0] + "," + sign * outerTickSize + "V0H" + range[1] + "V" + sign * outerTickSize);
	        } else {
	          tickTransform = d3_svg_axisY, x1 = "y", y1 = "x", x2 = "y2", y2 = "x2";
	          text.attr("dy", ".32em").style("text-anchor", sign < 0 ? "end" : "start");
	          pathUpdate.attr("d", "M" + sign * outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + sign * outerTickSize);
	        }
	        lineEnter.attr(y2, sign * innerTickSize);
	        textEnter.attr(y1, sign * tickSpacing);
	        lineUpdate.attr(x2, 0).attr(y2, sign * innerTickSize);
	        textUpdate.attr(x1, 0).attr(y1, sign * tickSpacing);
	        if (scale1.rangeBand) {
	          var x = scale1, dx = x.rangeBand() / 2;
	          scale0 = scale1 = function(d) {
	            return x(d) + dx;
	          };
	        } else if (scale0.rangeBand) {
	          scale0 = scale1;
	        } else {
	          tickExit.call(tickTransform, scale1, scale0);
	        }
	        tickEnter.call(tickTransform, scale0, scale1);
	        tickUpdate.call(tickTransform, scale1, scale1);
	      });
	    }
	    axis.scale = function(x) {
	      if (!arguments.length) return scale;
	      scale = x;
	      return axis;
	    };
	    axis.orient = function(x) {
	      if (!arguments.length) return orient;
	      orient = x in d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient;
	      return axis;
	    };
	    axis.ticks = function() {
	      if (!arguments.length) return tickArguments_;
	      tickArguments_ = d3_array(arguments);
	      return axis;
	    };
	    axis.tickValues = function(x) {
	      if (!arguments.length) return tickValues;
	      tickValues = x;
	      return axis;
	    };
	    axis.tickFormat = function(x) {
	      if (!arguments.length) return tickFormat_;
	      tickFormat_ = x;
	      return axis;
	    };
	    axis.tickSize = function(x) {
	      var n = arguments.length;
	      if (!n) return innerTickSize;
	      innerTickSize = +x;
	      outerTickSize = +arguments[n - 1];
	      return axis;
	    };
	    axis.innerTickSize = function(x) {
	      if (!arguments.length) return innerTickSize;
	      innerTickSize = +x;
	      return axis;
	    };
	    axis.outerTickSize = function(x) {
	      if (!arguments.length) return outerTickSize;
	      outerTickSize = +x;
	      return axis;
	    };
	    axis.tickPadding = function(x) {
	      if (!arguments.length) return tickPadding;
	      tickPadding = +x;
	      return axis;
	    };
	    axis.tickSubdivide = function() {
	      return arguments.length && axis;
	    };
	    return axis;
	  };
	  var d3_svg_axisDefaultOrient = "bottom", d3_svg_axisOrients = {
	    top: 1,
	    right: 1,
	    bottom: 1,
	    left: 1
	  };
	  function d3_svg_axisX(selection, x0, x1) {
	    selection.attr("transform", function(d) {
	      var v0 = x0(d);
	      return "translate(" + (isFinite(v0) ? v0 : x1(d)) + ",0)";
	    });
	  }
	  function d3_svg_axisY(selection, y0, y1) {
	    selection.attr("transform", function(d) {
	      var v0 = y0(d);
	      return "translate(0," + (isFinite(v0) ? v0 : y1(d)) + ")";
	    });
	  }
	  d3.svg.brush = function() {
	    var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, xExtent = [ 0, 0 ], yExtent = [ 0, 0 ], xExtentDomain, yExtentDomain, xClamp = true, yClamp = true, resizes = d3_svg_brushResizes[0];
	    function brush(g) {
	      g.each(function() {
	        var g = d3.select(this).style("pointer-events", "all").style("-webkit-tap-highlight-color", "rgba(0,0,0,0)").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
	        var background = g.selectAll(".background").data([ 0 ]);
	        background.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
	        g.selectAll(".extent").data([ 0 ]).enter().append("rect").attr("class", "extent").style("cursor", "move");
	        var resize = g.selectAll(".resize").data(resizes, d3_identity);
	        resize.exit().remove();
	        resize.enter().append("g").attr("class", function(d) {
	          return "resize " + d;
	        }).style("cursor", function(d) {
	          return d3_svg_brushCursor[d];
	        }).append("rect").attr("x", function(d) {
	          return /[ew]$/.test(d) ? -3 : null;
	        }).attr("y", function(d) {
	          return /^[ns]/.test(d) ? -3 : null;
	        }).attr("width", 6).attr("height", 6).style("visibility", "hidden");
	        resize.style("display", brush.empty() ? "none" : null);
	        var gUpdate = d3.transition(g), backgroundUpdate = d3.transition(background), range;
	        if (x) {
	          range = d3_scaleRange(x);
	          backgroundUpdate.attr("x", range[0]).attr("width", range[1] - range[0]);
	          redrawX(gUpdate);
	        }
	        if (y) {
	          range = d3_scaleRange(y);
	          backgroundUpdate.attr("y", range[0]).attr("height", range[1] - range[0]);
	          redrawY(gUpdate);
	        }
	        redraw(gUpdate);
	      });
	    }
	    brush.event = function(g) {
	      g.each(function() {
	        var event_ = event.of(this, arguments), extent1 = {
	          x: xExtent,
	          y: yExtent,
	          i: xExtentDomain,
	          j: yExtentDomain
	        }, extent0 = this.__chart__ || extent1;
	        this.__chart__ = extent1;
	        if (d3_transitionInheritId) {
	          d3.select(this).transition().each("start.brush", function() {
	            xExtentDomain = extent0.i;
	            yExtentDomain = extent0.j;
	            xExtent = extent0.x;
	            yExtent = extent0.y;
	            event_({
	              type: "brushstart"
	            });
	          }).tween("brush:brush", function() {
	            var xi = d3_interpolateArray(xExtent, extent1.x), yi = d3_interpolateArray(yExtent, extent1.y);
	            xExtentDomain = yExtentDomain = null;
	            return function(t) {
	              xExtent = extent1.x = xi(t);
	              yExtent = extent1.y = yi(t);
	              event_({
	                type: "brush",
	                mode: "resize"
	              });
	            };
	          }).each("end.brush", function() {
	            xExtentDomain = extent1.i;
	            yExtentDomain = extent1.j;
	            event_({
	              type: "brush",
	              mode: "resize"
	            });
	            event_({
	              type: "brushend"
	            });
	          });
	        } else {
	          event_({
	            type: "brushstart"
	          });
	          event_({
	            type: "brush",
	            mode: "resize"
	          });
	          event_({
	            type: "brushend"
	          });
	        }
	      });
	    };
	    function redraw(g) {
	      g.selectAll(".resize").attr("transform", function(d) {
	        return "translate(" + xExtent[+/e$/.test(d)] + "," + yExtent[+/^s/.test(d)] + ")";
	      });
	    }
	    function redrawX(g) {
	      g.select(".extent").attr("x", xExtent[0]);
	      g.selectAll(".extent,.n>rect,.s>rect").attr("width", xExtent[1] - xExtent[0]);
	    }
	    function redrawY(g) {
	      g.select(".extent").attr("y", yExtent[0]);
	      g.selectAll(".extent,.e>rect,.w>rect").attr("height", yExtent[1] - yExtent[0]);
	    }
	    function brushstart() {
	      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), dragRestore = d3_event_dragSuppress(target), center, origin = d3.mouse(target), offset;
	      var w = d3.select(d3_window(target)).on("keydown.brush", keydown).on("keyup.brush", keyup);
	      if (d3.event.changedTouches) {
	        w.on("touchmove.brush", brushmove).on("touchend.brush", brushend);
	      } else {
	        w.on("mousemove.brush", brushmove).on("mouseup.brush", brushend);
	      }
	      g.interrupt().selectAll("*").interrupt();
	      if (dragging) {
	        origin[0] = xExtent[0] - origin[0];
	        origin[1] = yExtent[0] - origin[1];
	      } else if (resizing) {
	        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
	        offset = [ xExtent[1 - ex] - origin[0], yExtent[1 - ey] - origin[1] ];
	        origin[0] = xExtent[ex];
	        origin[1] = yExtent[ey];
	      } else if (d3.event.altKey) center = origin.slice();
	      g.style("pointer-events", "none").selectAll(".resize").style("display", null);
	      d3.select("body").style("cursor", eventTarget.style("cursor"));
	      event_({
	        type: "brushstart"
	      });
	      brushmove();
	      function keydown() {
	        if (d3.event.keyCode == 32) {
	          if (!dragging) {
	            center = null;
	            origin[0] -= xExtent[1];
	            origin[1] -= yExtent[1];
	            dragging = 2;
	          }
	          d3_eventPreventDefault();
	        }
	      }
	      function keyup() {
	        if (d3.event.keyCode == 32 && dragging == 2) {
	          origin[0] += xExtent[1];
	          origin[1] += yExtent[1];
	          dragging = 0;
	          d3_eventPreventDefault();
	        }
	      }
	      function brushmove() {
	        var point = d3.mouse(target), moved = false;
	        if (offset) {
	          point[0] += offset[0];
	          point[1] += offset[1];
	        }
	        if (!dragging) {
	          if (d3.event.altKey) {
	            if (!center) center = [ (xExtent[0] + xExtent[1]) / 2, (yExtent[0] + yExtent[1]) / 2 ];
	            origin[0] = xExtent[+(point[0] < center[0])];
	            origin[1] = yExtent[+(point[1] < center[1])];
	          } else center = null;
	        }
	        if (resizingX && move1(point, x, 0)) {
	          redrawX(g);
	          moved = true;
	        }
	        if (resizingY && move1(point, y, 1)) {
	          redrawY(g);
	          moved = true;
	        }
	        if (moved) {
	          redraw(g);
	          event_({
	            type: "brush",
	            mode: dragging ? "move" : "resize"
	          });
	        }
	      }
	      function move1(point, scale, i) {
	        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], extent = i ? yExtent : xExtent, size = extent[1] - extent[0], min, max;
	        if (dragging) {
	          r0 -= position;
	          r1 -= size + position;
	        }
	        min = (i ? yClamp : xClamp) ? Math.max(r0, Math.min(r1, point[i])) : point[i];
	        if (dragging) {
	          max = (min += position) + size;
	        } else {
	          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
	          if (position < min) {
	            max = min;
	            min = position;
	          } else {
	            max = position;
	          }
	        }
	        if (extent[0] != min || extent[1] != max) {
	          if (i) yExtentDomain = null; else xExtentDomain = null;
	          extent[0] = min;
	          extent[1] = max;
	          return true;
	        }
	      }
	      function brushend() {
	        brushmove();
	        g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
	        d3.select("body").style("cursor", null);
	        w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);
	        dragRestore();
	        event_({
	          type: "brushend"
	        });
	      }
	    }
	    brush.x = function(z) {
	      if (!arguments.length) return x;
	      x = z;
	      resizes = d3_svg_brushResizes[!x << 1 | !y];
	      return brush;
	    };
	    brush.y = function(z) {
	      if (!arguments.length) return y;
	      y = z;
	      resizes = d3_svg_brushResizes[!x << 1 | !y];
	      return brush;
	    };
	    brush.clamp = function(z) {
	      if (!arguments.length) return x && y ? [ xClamp, yClamp ] : x ? xClamp : y ? yClamp : null;
	      if (x && y) xClamp = !!z[0], yClamp = !!z[1]; else if (x) xClamp = !!z; else if (y) yClamp = !!z;
	      return brush;
	    };
	    brush.extent = function(z) {
	      var x0, x1, y0, y1, t;
	      if (!arguments.length) {
	        if (x) {
	          if (xExtentDomain) {
	            x0 = xExtentDomain[0], x1 = xExtentDomain[1];
	          } else {
	            x0 = xExtent[0], x1 = xExtent[1];
	            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
	            if (x1 < x0) t = x0, x0 = x1, x1 = t;
	          }
	        }
	        if (y) {
	          if (yExtentDomain) {
	            y0 = yExtentDomain[0], y1 = yExtentDomain[1];
	          } else {
	            y0 = yExtent[0], y1 = yExtent[1];
	            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
	            if (y1 < y0) t = y0, y0 = y1, y1 = t;
	          }
	        }
	        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];
	      }
	      if (x) {
	        x0 = z[0], x1 = z[1];
	        if (y) x0 = x0[0], x1 = x1[0];
	        xExtentDomain = [ x0, x1 ];
	        if (x.invert) x0 = x(x0), x1 = x(x1);
	        if (x1 < x0) t = x0, x0 = x1, x1 = t;
	        if (x0 != xExtent[0] || x1 != xExtent[1]) xExtent = [ x0, x1 ];
	      }
	      if (y) {
	        y0 = z[0], y1 = z[1];
	        if (x) y0 = y0[1], y1 = y1[1];
	        yExtentDomain = [ y0, y1 ];
	        if (y.invert) y0 = y(y0), y1 = y(y1);
	        if (y1 < y0) t = y0, y0 = y1, y1 = t;
	        if (y0 != yExtent[0] || y1 != yExtent[1]) yExtent = [ y0, y1 ];
	      }
	      return brush;
	    };
	    brush.clear = function() {
	      if (!brush.empty()) {
	        xExtent = [ 0, 0 ], yExtent = [ 0, 0 ];
	        xExtentDomain = yExtentDomain = null;
	      }
	      return brush;
	    };
	    brush.empty = function() {
	      return !!x && xExtent[0] == xExtent[1] || !!y && yExtent[0] == yExtent[1];
	    };
	    return d3.rebind(brush, event, "on");
	  };
	  var d3_svg_brushCursor = {
	    n: "ns-resize",
	    e: "ew-resize",
	    s: "ns-resize",
	    w: "ew-resize",
	    nw: "nwse-resize",
	    ne: "nesw-resize",
	    se: "nwse-resize",
	    sw: "nesw-resize"
	  };
	  var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];
	  var d3_time_format = d3_time.format = d3_locale_enUS.timeFormat;
	  var d3_time_formatUtc = d3_time_format.utc;
	  var d3_time_formatIso = d3_time_formatUtc("%Y-%m-%dT%H:%M:%S.%LZ");
	  d3_time_format.iso = Date.prototype.toISOString && +new Date("2000-01-01T00:00:00.000Z") ? d3_time_formatIsoNative : d3_time_formatIso;
	  function d3_time_formatIsoNative(date) {
	    return date.toISOString();
	  }
	  d3_time_formatIsoNative.parse = function(string) {
	    var date = new Date(string);
	    return isNaN(date) ? null : date;
	  };
	  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
	  d3_time.second = d3_time_interval(function(date) {
	    return new d3_date(Math.floor(date / 1e3) * 1e3);
	  }, function(date, offset) {
	    date.setTime(date.getTime() + Math.floor(offset) * 1e3);
	  }, function(date) {
	    return date.getSeconds();
	  });
	  d3_time.seconds = d3_time.second.range;
	  d3_time.seconds.utc = d3_time.second.utc.range;
	  d3_time.minute = d3_time_interval(function(date) {
	    return new d3_date(Math.floor(date / 6e4) * 6e4);
	  }, function(date, offset) {
	    date.setTime(date.getTime() + Math.floor(offset) * 6e4);
	  }, function(date) {
	    return date.getMinutes();
	  });
	  d3_time.minutes = d3_time.minute.range;
	  d3_time.minutes.utc = d3_time.minute.utc.range;
	  d3_time.hour = d3_time_interval(function(date) {
	    var timezone = date.getTimezoneOffset() / 60;
	    return new d3_date((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
	  }, function(date, offset) {
	    date.setTime(date.getTime() + Math.floor(offset) * 36e5);
	  }, function(date) {
	    return date.getHours();
	  });
	  d3_time.hours = d3_time.hour.range;
	  d3_time.hours.utc = d3_time.hour.utc.range;
	  d3_time.month = d3_time_interval(function(date) {
	    date = d3_time.day(date);
	    date.setDate(1);
	    return date;
	  }, function(date, offset) {
	    date.setMonth(date.getMonth() + offset);
	  }, function(date) {
	    return date.getMonth();
	  });
	  d3_time.months = d3_time.month.range;
	  d3_time.months.utc = d3_time.month.utc.range;
	  function d3_time_scale(linear, methods, format) {
	    function scale(x) {
	      return linear(x);
	    }
	    scale.invert = function(x) {
	      return d3_time_scaleDate(linear.invert(x));
	    };
	    scale.domain = function(x) {
	      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
	      linear.domain(x);
	      return scale;
	    };
	    function tickMethod(extent, count) {
	      var span = extent[1] - extent[0], target = span / count, i = d3.bisect(d3_time_scaleSteps, target);
	      return i == d3_time_scaleSteps.length ? [ methods.year, d3_scale_linearTickRange(extent.map(function(d) {
	        return d / 31536e6;
	      }), count)[2] ] : !i ? [ d3_time_scaleMilliseconds, d3_scale_linearTickRange(extent, count)[2] ] : methods[target / d3_time_scaleSteps[i - 1] < d3_time_scaleSteps[i] / target ? i - 1 : i];
	    }
	    scale.nice = function(interval, skip) {
	      var domain = scale.domain(), extent = d3_scaleExtent(domain), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" && tickMethod(extent, interval);
	      if (method) interval = method[0], skip = method[1];
	      function skipped(date) {
	        return !isNaN(date) && !interval.range(date, d3_time_scaleDate(+date + 1), skip).length;
	      }
	      return scale.domain(d3_scale_nice(domain, skip > 1 ? {
	        floor: function(date) {
	          while (skipped(date = interval.floor(date))) date = d3_time_scaleDate(date - 1);
	          return date;
	        },
	        ceil: function(date) {
	          while (skipped(date = interval.ceil(date))) date = d3_time_scaleDate(+date + 1);
	          return date;
	        }
	      } : interval));
	    };
	    scale.ticks = function(interval, skip) {
	      var extent = d3_scaleExtent(scale.domain()), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" ? tickMethod(extent, interval) : !interval.range && [ {
	        range: interval
	      }, skip ];
	      if (method) interval = method[0], skip = method[1];
	      return interval.range(extent[0], d3_time_scaleDate(+extent[1] + 1), skip < 1 ? 1 : skip);
	    };
	    scale.tickFormat = function() {
	      return format;
	    };
	    scale.copy = function() {
	      return d3_time_scale(linear.copy(), methods, format);
	    };
	    return d3_scale_linearRebind(scale, linear);
	  }
	  function d3_time_scaleDate(t) {
	    return new Date(t);
	  }
	  var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];
	  var d3_time_scaleLocalMethods = [ [ d3_time.second, 1 ], [ d3_time.second, 5 ], [ d3_time.second, 15 ], [ d3_time.second, 30 ], [ d3_time.minute, 1 ], [ d3_time.minute, 5 ], [ d3_time.minute, 15 ], [ d3_time.minute, 30 ], [ d3_time.hour, 1 ], [ d3_time.hour, 3 ], [ d3_time.hour, 6 ], [ d3_time.hour, 12 ], [ d3_time.day, 1 ], [ d3_time.day, 2 ], [ d3_time.week, 1 ], [ d3_time.month, 1 ], [ d3_time.month, 3 ], [ d3_time.year, 1 ] ];
	  var d3_time_scaleLocalFormat = d3_time_format.multi([ [ ".%L", function(d) {
	    return d.getMilliseconds();
	  } ], [ ":%S", function(d) {
	    return d.getSeconds();
	  } ], [ "%I:%M", function(d) {
	    return d.getMinutes();
	  } ], [ "%I %p", function(d) {
	    return d.getHours();
	  } ], [ "%a %d", function(d) {
	    return d.getDay() && d.getDate() != 1;
	  } ], [ "%b %d", function(d) {
	    return d.getDate() != 1;
	  } ], [ "%B", function(d) {
	    return d.getMonth();
	  } ], [ "%Y", d3_true ] ]);
	  var d3_time_scaleMilliseconds = {
	    range: function(start, stop, step) {
	      return d3.range(Math.ceil(start / step) * step, +stop, step).map(d3_time_scaleDate);
	    },
	    floor: d3_identity,
	    ceil: d3_identity
	  };
	  d3_time_scaleLocalMethods.year = d3_time.year;
	  d3_time.scale = function() {
	    return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
	  };
	  var d3_time_scaleUtcMethods = d3_time_scaleLocalMethods.map(function(m) {
	    return [ m[0].utc, m[1] ];
	  });
	  var d3_time_scaleUtcFormat = d3_time_formatUtc.multi([ [ ".%L", function(d) {
	    return d.getUTCMilliseconds();
	  } ], [ ":%S", function(d) {
	    return d.getUTCSeconds();
	  } ], [ "%I:%M", function(d) {
	    return d.getUTCMinutes();
	  } ], [ "%I %p", function(d) {
	    return d.getUTCHours();
	  } ], [ "%a %d", function(d) {
	    return d.getUTCDay() && d.getUTCDate() != 1;
	  } ], [ "%b %d", function(d) {
	    return d.getUTCDate() != 1;
	  } ], [ "%B", function(d) {
	    return d.getUTCMonth();
	  } ], [ "%Y", d3_true ] ]);
	  d3_time_scaleUtcMethods.year = d3_time.year.utc;
	  d3_time.scale.utc = function() {
	    return d3_time_scale(d3.scale.linear(), d3_time_scaleUtcMethods, d3_time_scaleUtcFormat);
	  };
	  d3.text = d3_xhrType(function(request) {
	    return request.responseText;
	  });
	  d3.json = function(url, callback) {
	    return d3_xhr(url, "application/json", d3_json, callback);
	  };
	  function d3_json(request) {
	    return JSON.parse(request.responseText);
	  }
	  d3.html = function(url, callback) {
	    return d3_xhr(url, "text/html", d3_html, callback);
	  };
	  function d3_html(request) {
	    var range = d3_document.createRange();
	    range.selectNode(d3_document.body);
	    return range.createContextualFragment(request.responseText);
	  }
	  d3.xml = d3_xhrType(function(request) {
	    return request.responseXML;
	  });
	  if (module.exports) module.exports = d3; else this.d3 = d3;
	}();
	}(d3$1));

	var d3 = d3$1.exports;

	function _isPlaceholder(a) {
	  return a != null && typeof a === 'object' && a['@@functional/placeholder'] === true;
	}

	/**
	 * Optimized internal one-arity curry function.
	 *
	 * @private
	 * @category Function
	 * @param {Function} fn The function to curry.
	 * @return {Function} The curried function.
	 */

	function _curry1(fn) {
	  return function f1(a) {
	    if (arguments.length === 0 || _isPlaceholder(a)) {
	      return f1;
	    } else {
	      return fn.apply(this, arguments);
	    }
	  };
	}

	/**
	 * Optimized internal two-arity curry function.
	 *
	 * @private
	 * @category Function
	 * @param {Function} fn The function to curry.
	 * @return {Function} The curried function.
	 */

	function _curry2(fn) {
	  return function f2(a, b) {
	    switch (arguments.length) {
	      case 0:
	        return f2;

	      case 1:
	        return _isPlaceholder(a) ? f2 : _curry1(function (_b) {
	          return fn(a, _b);
	        });

	      default:
	        return _isPlaceholder(a) && _isPlaceholder(b) ? f2 : _isPlaceholder(a) ? _curry1(function (_a) {
	          return fn(_a, b);
	        }) : _isPlaceholder(b) ? _curry1(function (_b) {
	          return fn(a, _b);
	        }) : fn(a, b);
	    }
	  };
	}

	function _arity(n, fn) {
	  /* eslint-disable no-unused-vars */
	  switch (n) {
	    case 0:
	      return function () {
	        return fn.apply(this, arguments);
	      };

	    case 1:
	      return function (a0) {
	        return fn.apply(this, arguments);
	      };

	    case 2:
	      return function (a0, a1) {
	        return fn.apply(this, arguments);
	      };

	    case 3:
	      return function (a0, a1, a2) {
	        return fn.apply(this, arguments);
	      };

	    case 4:
	      return function (a0, a1, a2, a3) {
	        return fn.apply(this, arguments);
	      };

	    case 5:
	      return function (a0, a1, a2, a3, a4) {
	        return fn.apply(this, arguments);
	      };

	    case 6:
	      return function (a0, a1, a2, a3, a4, a5) {
	        return fn.apply(this, arguments);
	      };

	    case 7:
	      return function (a0, a1, a2, a3, a4, a5, a6) {
	        return fn.apply(this, arguments);
	      };

	    case 8:
	      return function (a0, a1, a2, a3, a4, a5, a6, a7) {
	        return fn.apply(this, arguments);
	      };

	    case 9:
	      return function (a0, a1, a2, a3, a4, a5, a6, a7, a8) {
	        return fn.apply(this, arguments);
	      };

	    case 10:
	      return function (a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
	        return fn.apply(this, arguments);
	      };

	    default:
	      throw new Error('First argument to _arity must be a non-negative integer no greater than ten');
	  }
	}

	/**
	 * Internal curryN function.
	 *
	 * @private
	 * @category Function
	 * @param {Number} length The arity of the curried function.
	 * @param {Array} received An array of arguments received thus far.
	 * @param {Function} fn The function to curry.
	 * @return {Function} The curried function.
	 */

	function _curryN(length, received, fn) {
	  return function () {
	    var combined = [];
	    var argsIdx = 0;
	    var left = length;
	    var combinedIdx = 0;

	    while (combinedIdx < received.length || argsIdx < arguments.length) {
	      var result;

	      if (combinedIdx < received.length && (!_isPlaceholder(received[combinedIdx]) || argsIdx >= arguments.length)) {
	        result = received[combinedIdx];
	      } else {
	        result = arguments[argsIdx];
	        argsIdx += 1;
	      }

	      combined[combinedIdx] = result;

	      if (!_isPlaceholder(result)) {
	        left -= 1;
	      }

	      combinedIdx += 1;
	    }

	    return left <= 0 ? fn.apply(this, combined) : _arity(left, _curryN(length, combined, fn));
	  };
	}

	/**
	 * Returns a curried equivalent of the provided function, with the specified
	 * arity. The curried function has two unusual capabilities. First, its
	 * arguments needn't be provided one at a time. If `g` is `R.curryN(3, f)`, the
	 * following are equivalent:
	 *
	 *   - `g(1)(2)(3)`
	 *   - `g(1)(2, 3)`
	 *   - `g(1, 2)(3)`
	 *   - `g(1, 2, 3)`
	 *
	 * Secondly, the special placeholder value [`R.__`](#__) may be used to specify
	 * "gaps", allowing partial application of any combination of arguments,
	 * regardless of their positions. If `g` is as above and `_` is [`R.__`](#__),
	 * the following are equivalent:
	 *
	 *   - `g(1, 2, 3)`
	 *   - `g(_, 2, 3)(1)`
	 *   - `g(_, _, 3)(1)(2)`
	 *   - `g(_, _, 3)(1, 2)`
	 *   - `g(_, 2)(1)(3)`
	 *   - `g(_, 2)(1, 3)`
	 *   - `g(_, 2)(_, 3)(1)`
	 *
	 * @func
	 * @memberOf R
	 * @since v0.5.0
	 * @category Function
	 * @sig Number -> (* -> a) -> (* -> a)
	 * @param {Number} length The arity for the returned function.
	 * @param {Function} fn The function to curry.
	 * @return {Function} A new, curried function.
	 * @see R.curry
	 * @example
	 *
	 *      const sumArgs = (...args) => R.sum(args);
	 *
	 *      const curriedAddFourNumbers = R.curryN(4, sumArgs);
	 *      const f = curriedAddFourNumbers(1, 2);
	 *      const g = f(3);
	 *      g(4); //=> 10
	 */

	var curryN =
	/*#__PURE__*/
	_curry2(function curryN(length, fn) {
	  if (length === 1) {
	    return _curry1(fn);
	  }

	  return _arity(length, _curryN(length, [], fn));
	});

	var curryN$1 = curryN;

	/**
	 * Optimized internal three-arity curry function.
	 *
	 * @private
	 * @category Function
	 * @param {Function} fn The function to curry.
	 * @return {Function} The curried function.
	 */

	function _curry3(fn) {
	  return function f3(a, b, c) {
	    switch (arguments.length) {
	      case 0:
	        return f3;

	      case 1:
	        return _isPlaceholder(a) ? f3 : _curry2(function (_b, _c) {
	          return fn(a, _b, _c);
	        });

	      case 2:
	        return _isPlaceholder(a) && _isPlaceholder(b) ? f3 : _isPlaceholder(a) ? _curry2(function (_a, _c) {
	          return fn(_a, b, _c);
	        }) : _isPlaceholder(b) ? _curry2(function (_b, _c) {
	          return fn(a, _b, _c);
	        }) : _curry1(function (_c) {
	          return fn(a, b, _c);
	        });

	      default:
	        return _isPlaceholder(a) && _isPlaceholder(b) && _isPlaceholder(c) ? f3 : _isPlaceholder(a) && _isPlaceholder(b) ? _curry2(function (_a, _b) {
	          return fn(_a, _b, c);
	        }) : _isPlaceholder(a) && _isPlaceholder(c) ? _curry2(function (_a, _c) {
	          return fn(_a, b, _c);
	        }) : _isPlaceholder(b) && _isPlaceholder(c) ? _curry2(function (_b, _c) {
	          return fn(a, _b, _c);
	        }) : _isPlaceholder(a) ? _curry1(function (_a) {
	          return fn(_a, b, c);
	        }) : _isPlaceholder(b) ? _curry1(function (_b) {
	          return fn(a, _b, c);
	        }) : _isPlaceholder(c) ? _curry1(function (_c) {
	          return fn(a, b, _c);
	        }) : fn(a, b, c);
	    }
	  };
	}

	/**
	 * Tests whether or not an object is an array.
	 *
	 * @private
	 * @param {*} val The object to test.
	 * @return {Boolean} `true` if `val` is an array, `false` otherwise.
	 * @example
	 *
	 *      _isArray([]); //=> true
	 *      _isArray(null); //=> false
	 *      _isArray({}); //=> false
	 */
	var _isArray = Array.isArray || function _isArray(val) {
	  return val != null && val.length >= 0 && Object.prototype.toString.call(val) === '[object Array]';
	};

	function _isTransformer(obj) {
	  return obj != null && typeof obj['@@transducer/step'] === 'function';
	}

	/**
	 * Returns a function that dispatches with different strategies based on the
	 * object in list position (last argument). If it is an array, executes [fn].
	 * Otherwise, if it has a function with one of the given method names, it will
	 * execute that function (functor case). Otherwise, if it is a transformer,
	 * uses transducer [xf] to return a new transformer (transducer case).
	 * Otherwise, it will default to executing [fn].
	 *
	 * @private
	 * @param {Array} methodNames properties to check for a custom implementation
	 * @param {Function} xf transducer to initialize if object is transformer
	 * @param {Function} fn default ramda implementation
	 * @return {Function} A function that dispatches on object in list position
	 */

	function _dispatchable(methodNames, xf, fn) {
	  return function () {
	    if (arguments.length === 0) {
	      return fn();
	    }

	    var args = Array.prototype.slice.call(arguments, 0);
	    var obj = args.pop();

	    if (!_isArray(obj)) {
	      var idx = 0;

	      while (idx < methodNames.length) {
	        if (typeof obj[methodNames[idx]] === 'function') {
	          return obj[methodNames[idx]].apply(obj, args);
	        }

	        idx += 1;
	      }

	      if (_isTransformer(obj)) {
	        var transducer = xf.apply(null, args);
	        return transducer(obj);
	      }
	    }

	    return fn.apply(this, arguments);
	  };
	}

	var _xfBase = {
	  init: function () {
	    return this.xf['@@transducer/init']();
	  },
	  result: function (result) {
	    return this.xf['@@transducer/result'](result);
	  }
	};

	function _map(fn, functor) {
	  var idx = 0;
	  var len = functor.length;
	  var result = Array(len);

	  while (idx < len) {
	    result[idx] = fn(functor[idx]);
	    idx += 1;
	  }

	  return result;
	}

	function _isString(x) {
	  return Object.prototype.toString.call(x) === '[object String]';
	}

	/**
	 * Tests whether or not an object is similar to an array.
	 *
	 * @private
	 * @category Type
	 * @category List
	 * @sig * -> Boolean
	 * @param {*} x The object to test.
	 * @return {Boolean} `true` if `x` has a numeric length property and extreme indices defined; `false` otherwise.
	 * @example
	 *
	 *      _isArrayLike([]); //=> true
	 *      _isArrayLike(true); //=> false
	 *      _isArrayLike({}); //=> false
	 *      _isArrayLike({length: 10}); //=> false
	 *      _isArrayLike({0: 'zero', 9: 'nine', length: 10}); //=> true
	 */

	var _isArrayLike =
	/*#__PURE__*/
	_curry1(function isArrayLike(x) {
	  if (_isArray(x)) {
	    return true;
	  }

	  if (!x) {
	    return false;
	  }

	  if (typeof x !== 'object') {
	    return false;
	  }

	  if (_isString(x)) {
	    return false;
	  }

	  if (x.nodeType === 1) {
	    return !!x.length;
	  }

	  if (x.length === 0) {
	    return true;
	  }

	  if (x.length > 0) {
	    return x.hasOwnProperty(0) && x.hasOwnProperty(x.length - 1);
	  }

	  return false;
	});

	var _isArrayLike$1 = _isArrayLike;

	var XWrap =
	/*#__PURE__*/
	function () {
	  function XWrap(fn) {
	    this.f = fn;
	  }

	  XWrap.prototype['@@transducer/init'] = function () {
	    throw new Error('init not implemented on XWrap');
	  };

	  XWrap.prototype['@@transducer/result'] = function (acc) {
	    return acc;
	  };

	  XWrap.prototype['@@transducer/step'] = function (acc, x) {
	    return this.f(acc, x);
	  };

	  return XWrap;
	}();

	function _xwrap(fn) {
	  return new XWrap(fn);
	}

	/**
	 * Creates a function that is bound to a context.
	 * Note: `R.bind` does not provide the additional argument-binding capabilities of
	 * [Function.prototype.bind](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).
	 *
	 * @func
	 * @memberOf R
	 * @since v0.6.0
	 * @category Function
	 * @category Object
	 * @sig (* -> *) -> {*} -> (* -> *)
	 * @param {Function} fn The function to bind to context
	 * @param {Object} thisObj The context to bind `fn` to
	 * @return {Function} A function that will execute in the context of `thisObj`.
	 * @see R.partial
	 * @example
	 *
	 *      const log = R.bind(console.log, console);
	 *      R.pipe(R.assoc('a', 2), R.tap(log), R.assoc('a', 3))({a: 1}); //=> {a: 3}
	 *      // logs {a: 2}
	 * @symb R.bind(f, o)(a, b) = f.call(o, a, b)
	 */

	var bind =
	/*#__PURE__*/
	_curry2(function bind(fn, thisObj) {
	  return _arity(fn.length, function () {
	    return fn.apply(thisObj, arguments);
	  });
	});

	var bind$1 = bind;

	function _arrayReduce(xf, acc, list) {
	  var idx = 0;
	  var len = list.length;

	  while (idx < len) {
	    acc = xf['@@transducer/step'](acc, list[idx]);

	    if (acc && acc['@@transducer/reduced']) {
	      acc = acc['@@transducer/value'];
	      break;
	    }

	    idx += 1;
	  }

	  return xf['@@transducer/result'](acc);
	}

	function _iterableReduce(xf, acc, iter) {
	  var step = iter.next();

	  while (!step.done) {
	    acc = xf['@@transducer/step'](acc, step.value);

	    if (acc && acc['@@transducer/reduced']) {
	      acc = acc['@@transducer/value'];
	      break;
	    }

	    step = iter.next();
	  }

	  return xf['@@transducer/result'](acc);
	}

	function _methodReduce(xf, acc, obj, methodName) {
	  return xf['@@transducer/result'](obj[methodName](bind$1(xf['@@transducer/step'], xf), acc));
	}

	var symIterator = typeof Symbol !== 'undefined' ? Symbol.iterator : '@@iterator';
	function _reduce(fn, acc, list) {
	  if (typeof fn === 'function') {
	    fn = _xwrap(fn);
	  }

	  if (_isArrayLike$1(list)) {
	    return _arrayReduce(fn, acc, list);
	  }

	  if (typeof list['fantasy-land/reduce'] === 'function') {
	    return _methodReduce(fn, acc, list, 'fantasy-land/reduce');
	  }

	  if (list[symIterator] != null) {
	    return _iterableReduce(fn, acc, list[symIterator]());
	  }

	  if (typeof list.next === 'function') {
	    return _iterableReduce(fn, acc, list);
	  }

	  if (typeof list.reduce === 'function') {
	    return _methodReduce(fn, acc, list, 'reduce');
	  }

	  throw new TypeError('reduce: list must be array or iterable');
	}

	function _has(prop, obj) {
	  return Object.prototype.hasOwnProperty.call(obj, prop);
	}

	var toString$4 = Object.prototype.toString;

	var _isArguments =
	/*#__PURE__*/
	function () {
	  return toString$4.call(arguments) === '[object Arguments]' ? function _isArguments(x) {
	    return toString$4.call(x) === '[object Arguments]';
	  } : function _isArguments(x) {
	    return _has('callee', x);
	  };
	}();

	var _isArguments$1 = _isArguments;

	var hasEnumBug = !
	/*#__PURE__*/
	{
	  toString: null
	}.propertyIsEnumerable('toString');
	var nonEnumerableProps = ['constructor', 'valueOf', 'isPrototypeOf', 'toString', 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString']; // Safari bug

	var hasArgsEnumBug =
	/*#__PURE__*/
	function () {

	  return arguments.propertyIsEnumerable('length');
	}();

	var contains = function contains(list, item) {
	  var idx = 0;

	  while (idx < list.length) {
	    if (list[idx] === item) {
	      return true;
	    }

	    idx += 1;
	  }

	  return false;
	};
	/**
	 * Returns a list containing the names of all the enumerable own properties of
	 * the supplied object.
	 * Note that the order of the output array is not guaranteed to be consistent
	 * across different JS platforms.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category Object
	 * @sig {k: v} -> [k]
	 * @param {Object} obj The object to extract properties from
	 * @return {Array} An array of the object's own properties.
	 * @see R.keysIn, R.values
	 * @example
	 *
	 *      R.keys({a: 1, b: 2, c: 3}); //=> ['a', 'b', 'c']
	 */


	var keys$4 = typeof Object.keys === 'function' && !hasArgsEnumBug ?
	/*#__PURE__*/
	_curry1(function keys(obj) {
	  return Object(obj) !== obj ? [] : Object.keys(obj);
	}) :
	/*#__PURE__*/
	_curry1(function keys(obj) {
	  if (Object(obj) !== obj) {
	    return [];
	  }

	  var prop, nIdx;
	  var ks = [];

	  var checkArgsLength = hasArgsEnumBug && _isArguments$1(obj);

	  for (prop in obj) {
	    if (_has(prop, obj) && (!checkArgsLength || prop !== 'length')) {
	      ks[ks.length] = prop;
	    }
	  }

	  if (hasEnumBug) {
	    nIdx = nonEnumerableProps.length - 1;

	    while (nIdx >= 0) {
	      prop = nonEnumerableProps[nIdx];

	      if (_has(prop, obj) && !contains(ks, prop)) {
	        ks[ks.length] = prop;
	      }

	      nIdx -= 1;
	    }
	  }

	  return ks;
	});
	var keys$5 = keys$4;

	/**
	 * Returns a single item by iterating through the list, successively calling
	 * the iterator function and passing it an accumulator value and the current
	 * value from the array, and then passing the result to the next call.
	 *
	 * The iterator function receives two values: *(acc, value)*. It may use
	 * [`R.reduced`](#reduced) to shortcut the iteration.
	 *
	 * The arguments' order of [`reduceRight`](#reduceRight)'s iterator function
	 * is *(value, acc)*.
	 *
	 * Note: `R.reduce` does not skip deleted or unassigned indices (sparse
	 * arrays), unlike the native `Array.prototype.reduce` method. For more details
	 * on this behavior, see:
	 * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce#Description
	 *
	 * Dispatches to the `reduce` method of the third argument, if present. When
	 * doing so, it is up to the user to handle the [`R.reduced`](#reduced)
	 * shortcuting, as this is not implemented by `reduce`.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category List
	 * @sig ((a, b) -> a) -> a -> [b] -> a
	 * @param {Function} fn The iterator function. Receives two values, the accumulator and the
	 *        current element from the array.
	 * @param {*} acc The accumulator value.
	 * @param {Array} list The list to iterate over.
	 * @return {*} The final, accumulated value.
	 * @see R.reduced, R.addIndex, R.reduceRight
	 * @example
	 *
	 *      R.reduce(R.subtract, 0, [1, 2, 3, 4]) // => ((((0 - 1) - 2) - 3) - 4) = -10
	 *      //          -               -10
	 *      //         / \              / \
	 *      //        -   4           -6   4
	 *      //       / \              / \
	 *      //      -   3   ==>     -3   3
	 *      //     / \              / \
	 *      //    -   2           -1   2
	 *      //   / \              / \
	 *      //  0   1            0   1
	 *
	 * @symb R.reduce(f, a, [b, c, d]) = f(f(f(a, b), c), d)
	 */

	var reduce =
	/*#__PURE__*/
	_curry3(_reduce);

	var reduce$1 = reduce;

	function _isFunction(x) {
	  var type = Object.prototype.toString.call(x);
	  return type === '[object Function]' || type === '[object AsyncFunction]' || type === '[object GeneratorFunction]' || type === '[object AsyncGeneratorFunction]';
	}

	/**
	 * Gives a single-word string description of the (native) type of a value,
	 * returning such answers as 'Object', 'Number', 'Array', or 'Null'. Does not
	 * attempt to distinguish user Object types any further, reporting them all as
	 * 'Object'.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.8.0
	 * @category Type
	 * @sig (* -> {*}) -> String
	 * @param {*} val The value to test
	 * @return {String}
	 * @example
	 *
	 *      R.type({}); //=> "Object"
	 *      R.type(1); //=> "Number"
	 *      R.type(false); //=> "Boolean"
	 *      R.type('s'); //=> "String"
	 *      R.type(null); //=> "Null"
	 *      R.type([]); //=> "Array"
	 *      R.type(/[A-z]/); //=> "RegExp"
	 *      R.type(() => {}); //=> "Function"
	 *      R.type(undefined); //=> "Undefined"
	 */

	var type =
	/*#__PURE__*/
	_curry1(function type(val) {
	  return val === null ? 'Null' : val === undefined ? 'Undefined' : Object.prototype.toString.call(val).slice(8, -1);
	});

	var type$1 = type;

	function _pipe(f, g) {
	  return function () {
	    return g.call(this, f.apply(this, arguments));
	  };
	}

	/**
	 * This checks whether a function has a [methodname] function. If it isn't an
	 * array it will execute that function otherwise it will default to the ramda
	 * implementation.
	 *
	 * @private
	 * @param {Function} fn ramda implemtation
	 * @param {String} methodname property to check for a custom implementation
	 * @return {Object} Whatever the return value of the method is.
	 */

	function _checkForMethod(methodname, fn) {
	  return function () {
	    var length = arguments.length;

	    if (length === 0) {
	      return fn();
	    }

	    var obj = arguments[length - 1];
	    return _isArray(obj) || typeof obj[methodname] !== 'function' ? fn.apply(this, arguments) : obj[methodname].apply(obj, Array.prototype.slice.call(arguments, 0, length - 1));
	  };
	}

	/**
	 * Returns the elements of the given list or string (or object with a `slice`
	 * method) from `fromIndex` (inclusive) to `toIndex` (exclusive).
	 *
	 * Dispatches to the `slice` method of the third argument, if present.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.4
	 * @category List
	 * @sig Number -> Number -> [a] -> [a]
	 * @sig Number -> Number -> String -> String
	 * @param {Number} fromIndex The start index (inclusive).
	 * @param {Number} toIndex The end index (exclusive).
	 * @param {*} list
	 * @return {*}
	 * @example
	 *
	 *      R.slice(1, 3, ['a', 'b', 'c', 'd']);        //=> ['b', 'c']
	 *      R.slice(1, Infinity, ['a', 'b', 'c', 'd']); //=> ['b', 'c', 'd']
	 *      R.slice(0, -1, ['a', 'b', 'c', 'd']);       //=> ['a', 'b', 'c']
	 *      R.slice(-3, -1, ['a', 'b', 'c', 'd']);      //=> ['b', 'c']
	 *      R.slice(0, 3, 'ramda');                     //=> 'ram'
	 */

	var slice =
	/*#__PURE__*/
	_curry3(
	/*#__PURE__*/
	_checkForMethod('slice', function slice(fromIndex, toIndex, list) {
	  return Array.prototype.slice.call(list, fromIndex, toIndex);
	}));

	var slice$1 = slice;

	/**
	 * Returns all but the first element of the given list or string (or object
	 * with a `tail` method).
	 *
	 * Dispatches to the `slice` method of the first argument, if present.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category List
	 * @sig [a] -> [a]
	 * @sig String -> String
	 * @param {*} list
	 * @return {*}
	 * @see R.head, R.init, R.last
	 * @example
	 *
	 *      R.tail([1, 2, 3]);  //=> [2, 3]
	 *      R.tail([1, 2]);     //=> [2]
	 *      R.tail([1]);        //=> []
	 *      R.tail([]);         //=> []
	 *
	 *      R.tail('abc');  //=> 'bc'
	 *      R.tail('ab');   //=> 'b'
	 *      R.tail('a');    //=> ''
	 *      R.tail('');     //=> ''
	 */

	var tail =
	/*#__PURE__*/
	_curry1(
	/*#__PURE__*/
	_checkForMethod('tail',
	/*#__PURE__*/
	slice$1(1, Infinity)));

	var tail$1 = tail;

	/**
	 * Performs left-to-right function composition. The first argument may have
	 * any arity; the remaining arguments must be unary.
	 *
	 * In some libraries this function is named `sequence`.
	 *
	 * **Note:** The result of pipe is not automatically curried.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category Function
	 * @sig (((a, b, ..., n) -> o), (o -> p), ..., (x -> y), (y -> z)) -> ((a, b, ..., n) -> z)
	 * @param {...Function} functions
	 * @return {Function}
	 * @see R.compose
	 * @example
	 *
	 *      const f = R.pipe(Math.pow, R.negate, R.inc);
	 *
	 *      f(3, 4); // -(3^4) + 1
	 * @symb R.pipe(f, g, h)(a, b) = h(g(f(a, b)))
	 */

	function pipe() {
	  if (arguments.length === 0) {
	    throw new Error('pipe requires at least one argument');
	  }

	  return _arity(arguments[0].length, reduce$1(_pipe, arguments[0], tail$1(arguments)));
	}

	function _arrayFromIterator(iter) {
	  var list = [];
	  var next;

	  while (!(next = iter.next()).done) {
	    list.push(next.value);
	  }

	  return list;
	}

	function _includesWith(pred, x, list) {
	  var idx = 0;
	  var len = list.length;

	  while (idx < len) {
	    if (pred(x, list[idx])) {
	      return true;
	    }

	    idx += 1;
	  }

	  return false;
	}

	function _functionName(f) {
	  // String(x => x) evaluates to "x => x", so the pattern may not match.
	  var match = String(f).match(/^function (\w*)/);
	  return match == null ? '' : match[1];
	}

	// Based on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
	function _objectIs(a, b) {
	  // SameValue algorithm
	  if (a === b) {
	    // Steps 1-5, 7-10
	    // Steps 6.b-6.e: +0 != -0
	    return a !== 0 || 1 / a === 1 / b;
	  } else {
	    // Step 6.a: NaN == NaN
	    return a !== a && b !== b;
	  }
	}

	var _objectIs$1 = typeof Object.is === 'function' ? Object.is : _objectIs;

	/**
	 * private _uniqContentEquals function.
	 * That function is checking equality of 2 iterator contents with 2 assumptions
	 * - iterators lengths are the same
	 * - iterators values are unique
	 *
	 * false-positive result will be returned for comparision of, e.g.
	 * - [1,2,3] and [1,2,3,4]
	 * - [1,1,1] and [1,2,3]
	 * */

	function _uniqContentEquals(aIterator, bIterator, stackA, stackB) {
	  var a = _arrayFromIterator(aIterator);

	  var b = _arrayFromIterator(bIterator);

	  function eq(_a, _b) {
	    return _equals(_a, _b, stackA.slice(), stackB.slice());
	  } // if *a* array contains any element that is not included in *b*


	  return !_includesWith(function (b, aItem) {
	    return !_includesWith(eq, aItem, b);
	  }, b, a);
	}

	function _equals(a, b, stackA, stackB) {
	  if (_objectIs$1(a, b)) {
	    return true;
	  }

	  var typeA = type$1(a);

	  if (typeA !== type$1(b)) {
	    return false;
	  }

	  if (a == null || b == null) {
	    return false;
	  }

	  if (typeof a['fantasy-land/equals'] === 'function' || typeof b['fantasy-land/equals'] === 'function') {
	    return typeof a['fantasy-land/equals'] === 'function' && a['fantasy-land/equals'](b) && typeof b['fantasy-land/equals'] === 'function' && b['fantasy-land/equals'](a);
	  }

	  if (typeof a.equals === 'function' || typeof b.equals === 'function') {
	    return typeof a.equals === 'function' && a.equals(b) && typeof b.equals === 'function' && b.equals(a);
	  }

	  switch (typeA) {
	    case 'Arguments':
	    case 'Array':
	    case 'Object':
	      if (typeof a.constructor === 'function' && _functionName(a.constructor) === 'Promise') {
	        return a === b;
	      }

	      break;

	    case 'Boolean':
	    case 'Number':
	    case 'String':
	      if (!(typeof a === typeof b && _objectIs$1(a.valueOf(), b.valueOf()))) {
	        return false;
	      }

	      break;

	    case 'Date':
	      if (!_objectIs$1(a.valueOf(), b.valueOf())) {
	        return false;
	      }

	      break;

	    case 'Error':
	      return a.name === b.name && a.message === b.message;

	    case 'RegExp':
	      if (!(a.source === b.source && a.global === b.global && a.ignoreCase === b.ignoreCase && a.multiline === b.multiline && a.sticky === b.sticky && a.unicode === b.unicode)) {
	        return false;
	      }

	      break;
	  }

	  var idx = stackA.length - 1;

	  while (idx >= 0) {
	    if (stackA[idx] === a) {
	      return stackB[idx] === b;
	    }

	    idx -= 1;
	  }

	  switch (typeA) {
	    case 'Map':
	      if (a.size !== b.size) {
	        return false;
	      }

	      return _uniqContentEquals(a.entries(), b.entries(), stackA.concat([a]), stackB.concat([b]));

	    case 'Set':
	      if (a.size !== b.size) {
	        return false;
	      }

	      return _uniqContentEquals(a.values(), b.values(), stackA.concat([a]), stackB.concat([b]));

	    case 'Arguments':
	    case 'Array':
	    case 'Object':
	    case 'Boolean':
	    case 'Number':
	    case 'String':
	    case 'Date':
	    case 'Error':
	    case 'RegExp':
	    case 'Int8Array':
	    case 'Uint8Array':
	    case 'Uint8ClampedArray':
	    case 'Int16Array':
	    case 'Uint16Array':
	    case 'Int32Array':
	    case 'Uint32Array':
	    case 'Float32Array':
	    case 'Float64Array':
	    case 'ArrayBuffer':
	      break;

	    default:
	      // Values of other types are only equal if identical.
	      return false;
	  }

	  var keysA = keys$5(a);

	  if (keysA.length !== keys$5(b).length) {
	    return false;
	  }

	  var extendedStackA = stackA.concat([a]);
	  var extendedStackB = stackB.concat([b]);
	  idx = keysA.length - 1;

	  while (idx >= 0) {
	    var key = keysA[idx];

	    if (!(_has(key, b) && _equals(b[key], a[key], extendedStackA, extendedStackB))) {
	      return false;
	    }

	    idx -= 1;
	  }

	  return true;
	}

	/**
	 * Returns `true` if its arguments are equivalent, `false` otherwise. Handles
	 * cyclical data structures.
	 *
	 * Dispatches symmetrically to the `equals` methods of both arguments, if
	 * present.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.15.0
	 * @category Relation
	 * @sig a -> b -> Boolean
	 * @param {*} a
	 * @param {*} b
	 * @return {Boolean}
	 * @example
	 *
	 *      R.equals(1, 1); //=> true
	 *      R.equals(1, '1'); //=> false
	 *      R.equals([1, 2, 3], [1, 2, 3]); //=> true
	 *
	 *      const a = {}; a.v = a;
	 *      const b = {}; b.v = b;
	 *      R.equals(a, b); //=> true
	 */

	var equals =
	/*#__PURE__*/
	_curry2(function equals(a, b) {
	  return _equals(a, b, [], []);
	});

	var equals$1 = equals;

	function _indexOf(list, a, idx) {
	  var inf, item; // Array.prototype.indexOf doesn't exist below IE9

	  if (typeof list.indexOf === 'function') {
	    switch (typeof a) {
	      case 'number':
	        if (a === 0) {
	          // manually crawl the list to distinguish between +0 and -0
	          inf = 1 / a;

	          while (idx < list.length) {
	            item = list[idx];

	            if (item === 0 && 1 / item === inf) {
	              return idx;
	            }

	            idx += 1;
	          }

	          return -1;
	        } else if (a !== a) {
	          // NaN
	          while (idx < list.length) {
	            item = list[idx];

	            if (typeof item === 'number' && item !== item) {
	              return idx;
	            }

	            idx += 1;
	          }

	          return -1;
	        } // non-zero numbers can utilise Set


	        return list.indexOf(a, idx);
	      // all these types can utilise Set

	      case 'string':
	      case 'boolean':
	      case 'function':
	      case 'undefined':
	        return list.indexOf(a, idx);

	      case 'object':
	        if (a === null) {
	          // null can utilise Set
	          return list.indexOf(a, idx);
	        }

	    }
	  } // anything else not covered above, defer to R.equals


	  while (idx < list.length) {
	    if (equals$1(list[idx], a)) {
	      return idx;
	    }

	    idx += 1;
	  }

	  return -1;
	}

	function _includes(a, list) {
	  return _indexOf(list, a, 0) >= 0;
	}

	function _quote(s) {
	  var escaped = s.replace(/\\/g, '\\\\').replace(/[\b]/g, '\\b') // \b matches word boundary; [\b] matches backspace
	  .replace(/\f/g, '\\f').replace(/\n/g, '\\n').replace(/\r/g, '\\r').replace(/\t/g, '\\t').replace(/\v/g, '\\v').replace(/\0/g, '\\0');
	  return '"' + escaped.replace(/"/g, '\\"') + '"';
	}

	/**
	 * Polyfill from <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString>.
	 */
	var pad = function pad(n) {
	  return (n < 10 ? '0' : '') + n;
	};

	var _toISOString = typeof Date.prototype.toISOString === 'function' ? function _toISOString(d) {
	  return d.toISOString();
	} : function _toISOString(d) {
	  return d.getUTCFullYear() + '-' + pad(d.getUTCMonth() + 1) + '-' + pad(d.getUTCDate()) + 'T' + pad(d.getUTCHours()) + ':' + pad(d.getUTCMinutes()) + ':' + pad(d.getUTCSeconds()) + '.' + (d.getUTCMilliseconds() / 1000).toFixed(3).slice(2, 5) + 'Z';
	};

	var _toISOString$1 = _toISOString;

	function _complement(f) {
	  return function () {
	    return !f.apply(this, arguments);
	  };
	}

	function _filter(fn, list) {
	  var idx = 0;
	  var len = list.length;
	  var result = [];

	  while (idx < len) {
	    if (fn(list[idx])) {
	      result[result.length] = list[idx];
	    }

	    idx += 1;
	  }

	  return result;
	}

	function _isObject(x) {
	  return Object.prototype.toString.call(x) === '[object Object]';
	}

	var XFilter =
	/*#__PURE__*/
	function () {
	  function XFilter(f, xf) {
	    this.xf = xf;
	    this.f = f;
	  }

	  XFilter.prototype['@@transducer/init'] = _xfBase.init;
	  XFilter.prototype['@@transducer/result'] = _xfBase.result;

	  XFilter.prototype['@@transducer/step'] = function (result, input) {
	    return this.f(input) ? this.xf['@@transducer/step'](result, input) : result;
	  };

	  return XFilter;
	}();

	var _xfilter =
	/*#__PURE__*/
	_curry2(function _xfilter(f, xf) {
	  return new XFilter(f, xf);
	});

	var _xfilter$1 = _xfilter;

	/**
	 * Takes a predicate and a `Filterable`, and returns a new filterable of the
	 * same type containing the members of the given filterable which satisfy the
	 * given predicate. Filterable objects include plain objects or any object
	 * that has a filter method such as `Array`.
	 *
	 * Dispatches to the `filter` method of the second argument, if present.
	 *
	 * Acts as a transducer if a transformer is given in list position.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category List
	 * @sig Filterable f => (a -> Boolean) -> f a -> f a
	 * @param {Function} pred
	 * @param {Array} filterable
	 * @return {Array} Filterable
	 * @see R.reject, R.transduce, R.addIndex
	 * @example
	 *
	 *      const isEven = n => n % 2 === 0;
	 *
	 *      R.filter(isEven, [1, 2, 3, 4]); //=> [2, 4]
	 *
	 *      R.filter(isEven, {a: 1, b: 2, c: 3, d: 4}); //=> {b: 2, d: 4}
	 */

	var filter =
	/*#__PURE__*/
	_curry2(
	/*#__PURE__*/
	_dispatchable(['filter'], _xfilter$1, function (pred, filterable) {
	  return _isObject(filterable) ? _reduce(function (acc, key) {
	    if (pred(filterable[key])) {
	      acc[key] = filterable[key];
	    }

	    return acc;
	  }, {}, keys$5(filterable)) : // else
	  _filter(pred, filterable);
	}));

	var filter$1 = filter;

	/**
	 * The complement of [`filter`](#filter).
	 *
	 * Acts as a transducer if a transformer is given in list position. Filterable
	 * objects include plain objects or any object that has a filter method such
	 * as `Array`.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category List
	 * @sig Filterable f => (a -> Boolean) -> f a -> f a
	 * @param {Function} pred
	 * @param {Array} filterable
	 * @return {Array}
	 * @see R.filter, R.transduce, R.addIndex
	 * @example
	 *
	 *      const isOdd = (n) => n % 2 === 1;
	 *
	 *      R.reject(isOdd, [1, 2, 3, 4]); //=> [2, 4]
	 *
	 *      R.reject(isOdd, {a: 1, b: 2, c: 3, d: 4}); //=> {b: 2, d: 4}
	 */

	var reject =
	/*#__PURE__*/
	_curry2(function reject(pred, filterable) {
	  return filter$1(_complement(pred), filterable);
	});

	var reject$1 = reject;

	function _toString(x, seen) {
	  var recur = function recur(y) {
	    var xs = seen.concat([x]);
	    return _includes(y, xs) ? '<Circular>' : _toString(y, xs);
	  }; //  mapPairs :: (Object, [String]) -> [String]


	  var mapPairs = function (obj, keys) {
	    return _map(function (k) {
	      return _quote(k) + ': ' + recur(obj[k]);
	    }, keys.slice().sort());
	  };

	  switch (Object.prototype.toString.call(x)) {
	    case '[object Arguments]':
	      return '(function() { return arguments; }(' + _map(recur, x).join(', ') + '))';

	    case '[object Array]':
	      return '[' + _map(recur, x).concat(mapPairs(x, reject$1(function (k) {
	        return /^\d+$/.test(k);
	      }, keys$5(x)))).join(', ') + ']';

	    case '[object Boolean]':
	      return typeof x === 'object' ? 'new Boolean(' + recur(x.valueOf()) + ')' : x.toString();

	    case '[object Date]':
	      return 'new Date(' + (isNaN(x.valueOf()) ? recur(NaN) : _quote(_toISOString$1(x))) + ')';

	    case '[object Null]':
	      return 'null';

	    case '[object Number]':
	      return typeof x === 'object' ? 'new Number(' + recur(x.valueOf()) + ')' : 1 / x === -Infinity ? '-0' : x.toString(10);

	    case '[object String]':
	      return typeof x === 'object' ? 'new String(' + recur(x.valueOf()) + ')' : _quote(x);

	    case '[object Undefined]':
	      return 'undefined';

	    default:
	      if (typeof x.toString === 'function') {
	        var repr = x.toString();

	        if (repr !== '[object Object]') {
	          return repr;
	        }
	      }

	      return '{' + mapPairs(x, keys$5(x)).join(', ') + '}';
	  }
	}

	/**
	 * Returns the string representation of the given value. `eval`'ing the output
	 * should result in a value equivalent to the input value. Many of the built-in
	 * `toString` methods do not satisfy this requirement.
	 *
	 * If the given value is an `[object Object]` with a `toString` method other
	 * than `Object.prototype.toString`, this method is invoked with no arguments
	 * to produce the return value. This means user-defined constructor functions
	 * can provide a suitable `toString` method. For example:
	 *
	 *     function Point(x, y) {
	 *       this.x = x;
	 *       this.y = y;
	 *     }
	 *
	 *     Point.prototype.toString = function() {
	 *       return 'new Point(' + this.x + ', ' + this.y + ')';
	 *     };
	 *
	 *     R.toString(new Point(1, 2)); //=> 'new Point(1, 2)'
	 *
	 * @func
	 * @memberOf R
	 * @since v0.14.0
	 * @category String
	 * @sig * -> String
	 * @param {*} val
	 * @return {String}
	 * @example
	 *
	 *      R.toString(42); //=> '42'
	 *      R.toString('abc'); //=> '"abc"'
	 *      R.toString([1, 2, 3]); //=> '[1, 2, 3]'
	 *      R.toString({foo: 1, bar: 2, baz: 3}); //=> '{"bar": 2, "baz": 3, "foo": 1}'
	 *      R.toString(new Date('2001-02-03T04:05:06Z')); //=> 'new Date("2001-02-03T04:05:06.000Z")'
	 */

	var toString$2 =
	/*#__PURE__*/
	_curry1(function toString(val) {
	  return _toString(val, []);
	});

	var toString$3 = toString$2;

	/**
	 * Returns the empty value of its argument's type. Ramda defines the empty
	 * value of Array (`[]`), Object (`{}`), String (`''`), and Arguments. Other
	 * types are supported if they define `<Type>.empty`,
	 * `<Type>.prototype.empty` or implement the
	 * [FantasyLand Monoid spec](https://github.com/fantasyland/fantasy-land#monoid).
	 *
	 * Dispatches to the `empty` method of the first argument, if present.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.3.0
	 * @category Function
	 * @sig a -> a
	 * @param {*} x
	 * @return {*}
	 * @example
	 *
	 *      R.empty(Just(42));      //=> Nothing()
	 *      R.empty([1, 2, 3]);     //=> []
	 *      R.empty('unicorns');    //=> ''
	 *      R.empty({x: 1, y: 2});  //=> {}
	 */

	var empty =
	/*#__PURE__*/
	_curry1(function empty(x) {
	  return x != null && typeof x['fantasy-land/empty'] === 'function' ? x['fantasy-land/empty']() : x != null && x.constructor != null && typeof x.constructor['fantasy-land/empty'] === 'function' ? x.constructor['fantasy-land/empty']() : x != null && typeof x.empty === 'function' ? x.empty() : x != null && x.constructor != null && typeof x.constructor.empty === 'function' ? x.constructor.empty() : _isArray(x) ? [] : _isString(x) ? '' : _isObject(x) ? {} : _isArguments$1(x) ? function () {
	    return arguments;
	  }() : void 0 // else
	  ;
	});

	var empty$1 = empty;

	/**
	 * Turns a named method with a specified arity into a function that can be
	 * called directly supplied with arguments and a target object.
	 *
	 * The returned function is curried and accepts `arity + 1` parameters where
	 * the final parameter is the target object.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category Function
	 * @sig Number -> String -> (a -> b -> ... -> n -> Object -> *)
	 * @param {Number} arity Number of arguments the returned function should take
	 *        before the target object.
	 * @param {String} method Name of any of the target object's methods to call.
	 * @return {Function} A new curried function.
	 * @see R.construct
	 * @example
	 *
	 *      const sliceFrom = R.invoker(1, 'slice');
	 *      sliceFrom(6, 'abcdefghijklm'); //=> 'ghijklm'
	 *      const sliceFrom6 = R.invoker(2, 'slice')(6);
	 *      sliceFrom6(8, 'abcdefghijklm'); //=> 'gh'
	 *
	 *      const dog = {
	 *        speak: async () => 'Woof!'
	 *      };
	 *      const speak = R.invoker(0, 'speak');
	 *      speak(dog).then(console.log) //~> 'Woof!'
	 *
	 * @symb R.invoker(0, 'method')(o) = o['method']()
	 * @symb R.invoker(1, 'method')(a, o) = o['method'](a)
	 * @symb R.invoker(2, 'method')(a, b, o) = o['method'](a, b)
	 */

	var invoker =
	/*#__PURE__*/
	_curry2(function invoker(arity, method) {
	  return curryN$1(arity + 1, function () {
	    var target = arguments[arity];

	    if (target != null && _isFunction(target[method])) {
	      return target[method].apply(target, Array.prototype.slice.call(arguments, 0, arity));
	    }

	    throw new TypeError(toString$3(target) + ' does not have a method named "' + method + '"');
	  });
	});

	var invoker$1 = invoker;

	/**
	 * See if an object (`val`) is an instance of the supplied constructor. This
	 * function will check up the inheritance chain, if any.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.3.0
	 * @category Type
	 * @sig (* -> {*}) -> a -> Boolean
	 * @param {Object} ctor A constructor
	 * @param {*} val The value to test
	 * @return {Boolean}
	 * @example
	 *
	 *      R.is(Object, {}); //=> true
	 *      R.is(Number, 1); //=> true
	 *      R.is(Object, 1); //=> false
	 *      R.is(String, 's'); //=> true
	 *      R.is(String, new String('')); //=> true
	 *      R.is(Object, new String('')); //=> true
	 *      R.is(Object, 's'); //=> false
	 *      R.is(Number, {}); //=> false
	 */

	var is =
	/*#__PURE__*/
	_curry2(function is(Ctor, val) {
	  return val != null && val.constructor === Ctor || val instanceof Ctor;
	});

	var is$1 = is;

	/**
	 * Returns `true` if the given value is its type's empty value; `false`
	 * otherwise.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category Logic
	 * @sig a -> Boolean
	 * @param {*} x
	 * @return {Boolean}
	 * @see R.empty
	 * @example
	 *
	 *      R.isEmpty([1, 2, 3]);   //=> false
	 *      R.isEmpty([]);          //=> true
	 *      R.isEmpty('');          //=> true
	 *      R.isEmpty(null);        //=> false
	 *      R.isEmpty({});          //=> true
	 *      R.isEmpty({length: 0}); //=> false
	 */

	var isEmpty =
	/*#__PURE__*/
	_curry1(function isEmpty(x) {
	  return x != null && equals$1(x, empty$1(x));
	});

	var isEmpty$1 = isEmpty;

	/**
	 * Returns a string made by inserting the `separator` between each element and
	 * concatenating all the elements into a single string.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.1.0
	 * @category List
	 * @sig String -> [a] -> String
	 * @param {Number|String} separator The string used to separate the elements.
	 * @param {Array} xs The elements to join into a string.
	 * @return {String} str The string made by concatenating `xs` with `separator`.
	 * @see R.split
	 * @example
	 *
	 *      const spacer = R.join(' ');
	 *      spacer(['a', 2, 3.4]);   //=> 'a 2 3.4'
	 *      R.join('|', [1, 2, 3]);    //=> '1|2|3'
	 */

	var join =
	/*#__PURE__*/
	invoker$1(1, 'join');
	var join$1 = join;

	/**
	 * An Object-specific version of [`map`](#map). The function is applied to three
	 * arguments: *(value, key, obj)*. If only the value is significant, use
	 * [`map`](#map) instead.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.9.0
	 * @category Object
	 * @sig ((*, String, Object) -> *) -> Object -> Object
	 * @param {Function} fn
	 * @param {Object} obj
	 * @return {Object}
	 * @see R.map
	 * @example
	 *
	 *      const xyz = { x: 1, y: 2, z: 3 };
	 *      const prependKeyAndDouble = (num, key, obj) => key + (num * 2);
	 *
	 *      R.mapObjIndexed(prependKeyAndDouble, xyz); //=> { x: 'x2', y: 'y4', z: 'z6' }
	 */

	var mapObjIndexed =
	/*#__PURE__*/
	_curry2(function mapObjIndexed(fn, obj) {
	  return _reduce(function (acc, key) {
	    acc[key] = fn(obj[key], key, obj);
	    return acc;
	  }, {}, keys$5(obj));
	});

	var mapObjIndexed$1 = mapObjIndexed;

	/**
	 * Replace a substring or regex match in a string with a replacement.
	 *
	 * The first two parameters correspond to the parameters of the
	 * `String.prototype.replace()` function, so the second parameter can also be a
	 * function.
	 *
	 * @func
	 * @memberOf R
	 * @since v0.7.0
	 * @category String
	 * @sig RegExp|String -> String -> String -> String
	 * @param {RegExp|String} pattern A regular expression or a substring to match.
	 * @param {String} replacement The string to replace the matches with.
	 * @param {String} str The String to do the search and replacement in.
	 * @return {String} The result.
	 * @example
	 *
	 *      R.replace('foo', 'bar', 'foo foo foo'); //=> 'bar foo foo'
	 *      R.replace(/foo/, 'bar', 'foo foo foo'); //=> 'bar foo foo'
	 *
	 *      // Use the "g" (global) flag to replace all occurrences:
	 *      R.replace(/foo/g, 'bar', 'foo foo foo'); //=> 'bar bar bar'
	 */

	var replace =
	/*#__PURE__*/
	_curry3(function replace(regex, replacement, str) {
	  return str.replace(regex, replacement);
	});

	var replace$1 = replace;

	function _defineProperty$1(obj, key, value) {
	  if (key in obj) {
	    Object.defineProperty(obj, key, {
	      value: value,
	      enumerable: true,
	      configurable: true,
	      writable: true
	    });
	  } else {
	    obj[key] = value;
	  }

	  return obj;
	}

	/**
	 * Checks if `value` is classified as an `Array` object.
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is an array, else `false`.
	 * @example
	 *
	 * _.isArray([1, 2, 3]);
	 * // => true
	 *
	 * _.isArray(document.body.children);
	 * // => false
	 *
	 * _.isArray('abc');
	 * // => false
	 *
	 * _.isArray(_.noop);
	 * // => false
	 */

	var isArray$8 = Array.isArray;

	var isArray_1 = isArray$8;

	/** Detect free variable `global` from Node.js. */

	var freeGlobal$1 = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;

	var _freeGlobal = freeGlobal$1;

	var freeGlobal = _freeGlobal;

	/** Detect free variable `self`. */
	var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

	/** Used as a reference to the global object. */
	var root$8 = freeGlobal || freeSelf || Function('return this')();

	var _root = root$8;

	var root$7 = _root;

	/** Built-in value references. */
	var Symbol$5 = root$7.Symbol;

	var _Symbol = Symbol$5;

	var Symbol$4 = _Symbol;

	/** Used for built-in method references. */
	var objectProto$c = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty$9 = objectProto$c.hasOwnProperty;

	/**
	 * Used to resolve the
	 * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
	 * of values.
	 */
	var nativeObjectToString$1 = objectProto$c.toString;

	/** Built-in value references. */
	var symToStringTag$1 = Symbol$4 ? Symbol$4.toStringTag : undefined;

	/**
	 * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
	 *
	 * @private
	 * @param {*} value The value to query.
	 * @returns {string} Returns the raw `toStringTag`.
	 */
	function getRawTag$1(value) {
	  var isOwn = hasOwnProperty$9.call(value, symToStringTag$1),
	      tag = value[symToStringTag$1];

	  try {
	    value[symToStringTag$1] = undefined;
	    var unmasked = true;
	  } catch (e) {}

	  var result = nativeObjectToString$1.call(value);
	  if (unmasked) {
	    if (isOwn) {
	      value[symToStringTag$1] = tag;
	    } else {
	      delete value[symToStringTag$1];
	    }
	  }
	  return result;
	}

	var _getRawTag = getRawTag$1;

	/** Used for built-in method references. */

	var objectProto$b = Object.prototype;

	/**
	 * Used to resolve the
	 * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
	 * of values.
	 */
	var nativeObjectToString = objectProto$b.toString;

	/**
	 * Converts `value` to a string using `Object.prototype.toString`.
	 *
	 * @private
	 * @param {*} value The value to convert.
	 * @returns {string} Returns the converted string.
	 */
	function objectToString$1(value) {
	  return nativeObjectToString.call(value);
	}

	var _objectToString = objectToString$1;

	var Symbol$3 = _Symbol,
	    getRawTag = _getRawTag,
	    objectToString = _objectToString;

	/** `Object#toString` result references. */
	var nullTag = '[object Null]',
	    undefinedTag = '[object Undefined]';

	/** Built-in value references. */
	var symToStringTag = Symbol$3 ? Symbol$3.toStringTag : undefined;

	/**
	 * The base implementation of `getTag` without fallbacks for buggy environments.
	 *
	 * @private
	 * @param {*} value The value to query.
	 * @returns {string} Returns the `toStringTag`.
	 */
	function baseGetTag$6(value) {
	  if (value == null) {
	    return value === undefined ? undefinedTag : nullTag;
	  }
	  return (symToStringTag && symToStringTag in Object(value))
	    ? getRawTag(value)
	    : objectToString(value);
	}

	var _baseGetTag = baseGetTag$6;

	/**
	 * Creates a unary function that invokes `func` with its argument transformed.
	 *
	 * @private
	 * @param {Function} func The function to wrap.
	 * @param {Function} transform The argument transform.
	 * @returns {Function} Returns the new function.
	 */

	function overArg$2(func, transform) {
	  return function(arg) {
	    return func(transform(arg));
	  };
	}

	var _overArg = overArg$2;

	var overArg$1 = _overArg;

	/** Built-in value references. */
	var getPrototype$1 = overArg$1(Object.getPrototypeOf, Object);

	var _getPrototype = getPrototype$1;

	/**
	 * Checks if `value` is object-like. A value is object-like if it's not `null`
	 * and has a `typeof` result of "object".
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
	 * @example
	 *
	 * _.isObjectLike({});
	 * // => true
	 *
	 * _.isObjectLike([1, 2, 3]);
	 * // => true
	 *
	 * _.isObjectLike(_.noop);
	 * // => false
	 *
	 * _.isObjectLike(null);
	 * // => false
	 */

	function isObjectLike$6(value) {
	  return value != null && typeof value == 'object';
	}

	var isObjectLike_1 = isObjectLike$6;

	var baseGetTag$5 = _baseGetTag,
	    getPrototype = _getPrototype,
	    isObjectLike$5 = isObjectLike_1;

	/** `Object#toString` result references. */
	var objectTag$3 = '[object Object]';

	/** Used for built-in method references. */
	var funcProto$2 = Function.prototype,
	    objectProto$a = Object.prototype;

	/** Used to resolve the decompiled source of functions. */
	var funcToString$2 = funcProto$2.toString;

	/** Used to check objects for own properties. */
	var hasOwnProperty$8 = objectProto$a.hasOwnProperty;

	/** Used to infer the `Object` constructor. */
	var objectCtorString = funcToString$2.call(Object);

	/**
	 * Checks if `value` is a plain object, that is, an object created by the
	 * `Object` constructor or one with a `[[Prototype]]` of `null`.
	 *
	 * @static
	 * @memberOf _
	 * @since 0.8.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
	 * @example
	 *
	 * function Foo() {
	 *   this.a = 1;
	 * }
	 *
	 * _.isPlainObject(new Foo);
	 * // => false
	 *
	 * _.isPlainObject([1, 2, 3]);
	 * // => false
	 *
	 * _.isPlainObject({ 'x': 0, 'y': 0 });
	 * // => true
	 *
	 * _.isPlainObject(Object.create(null));
	 * // => true
	 */
	function isPlainObject(value) {
	  if (!isObjectLike$5(value) || baseGetTag$5(value) != objectTag$3) {
	    return false;
	  }
	  var proto = getPrototype(value);
	  if (proto === null) {
	    return true;
	  }
	  var Ctor = hasOwnProperty$8.call(proto, 'constructor') && proto.constructor;
	  return typeof Ctor == 'function' && Ctor instanceof Ctor &&
	    funcToString$2.call(Ctor) == objectCtorString;
	}

	var isPlainObject_1 = isPlainObject;

	/**
	 * Checks if `value` is the
	 * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
	 * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
	 * @example
	 *
	 * _.isObject({});
	 * // => true
	 *
	 * _.isObject([1, 2, 3]);
	 * // => true
	 *
	 * _.isObject(_.noop);
	 * // => true
	 *
	 * _.isObject(null);
	 * // => false
	 */

	function isObject$3(value) {
	  var type = typeof value;
	  return value != null && (type == 'object' || type == 'function');
	}

	var isObject_1 = isObject$3;

	var baseGetTag$4 = _baseGetTag,
	    isObject$2 = isObject_1;

	/** `Object#toString` result references. */
	var asyncTag = '[object AsyncFunction]',
	    funcTag$1 = '[object Function]',
	    genTag = '[object GeneratorFunction]',
	    proxyTag = '[object Proxy]';

	/**
	 * Checks if `value` is classified as a `Function` object.
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a function, else `false`.
	 * @example
	 *
	 * _.isFunction(_);
	 * // => true
	 *
	 * _.isFunction(/abc/);
	 * // => false
	 */
	function isFunction$2(value) {
	  if (!isObject$2(value)) {
	    return false;
	  }
	  // The use of `Object#toString` avoids issues with the `typeof` operator
	  // in Safari 9 which returns 'object' for typed arrays and other constructors.
	  var tag = baseGetTag$4(value);
	  return tag == funcTag$1 || tag == genTag || tag == asyncTag || tag == proxyTag;
	}

	var isFunction_1 = isFunction$2;

	var root$6 = _root;

	/** Used to detect overreaching core-js shims. */
	var coreJsData$1 = root$6['__core-js_shared__'];

	var _coreJsData = coreJsData$1;

	var coreJsData = _coreJsData;

	/** Used to detect methods masquerading as native. */
	var maskSrcKey = (function() {
	  var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
	  return uid ? ('Symbol(src)_1.' + uid) : '';
	}());

	/**
	 * Checks if `func` has its source masked.
	 *
	 * @private
	 * @param {Function} func The function to check.
	 * @returns {boolean} Returns `true` if `func` is masked, else `false`.
	 */
	function isMasked$1(func) {
	  return !!maskSrcKey && (maskSrcKey in func);
	}

	var _isMasked = isMasked$1;

	/** Used for built-in method references. */

	var funcProto$1 = Function.prototype;

	/** Used to resolve the decompiled source of functions. */
	var funcToString$1 = funcProto$1.toString;

	/**
	 * Converts `func` to its source code.
	 *
	 * @private
	 * @param {Function} func The function to convert.
	 * @returns {string} Returns the source code.
	 */
	function toSource$2(func) {
	  if (func != null) {
	    try {
	      return funcToString$1.call(func);
	    } catch (e) {}
	    try {
	      return (func + '');
	    } catch (e) {}
	  }
	  return '';
	}

	var _toSource = toSource$2;

	var isFunction$1 = isFunction_1,
	    isMasked = _isMasked,
	    isObject$1 = isObject_1,
	    toSource$1 = _toSource;

	/**
	 * Used to match `RegExp`
	 * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
	 */
	var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;

	/** Used to detect host constructors (Safari). */
	var reIsHostCtor = /^\[object .+?Constructor\]$/;

	/** Used for built-in method references. */
	var funcProto = Function.prototype,
	    objectProto$9 = Object.prototype;

	/** Used to resolve the decompiled source of functions. */
	var funcToString = funcProto.toString;

	/** Used to check objects for own properties. */
	var hasOwnProperty$7 = objectProto$9.hasOwnProperty;

	/** Used to detect if a method is native. */
	var reIsNative = RegExp('^' +
	  funcToString.call(hasOwnProperty$7).replace(reRegExpChar, '\\$&')
	  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
	);

	/**
	 * The base implementation of `_.isNative` without bad shim checks.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a native function,
	 *  else `false`.
	 */
	function baseIsNative$1(value) {
	  if (!isObject$1(value) || isMasked(value)) {
	    return false;
	  }
	  var pattern = isFunction$1(value) ? reIsNative : reIsHostCtor;
	  return pattern.test(toSource$1(value));
	}

	var _baseIsNative = baseIsNative$1;

	/**
	 * Gets the value at `key` of `object`.
	 *
	 * @private
	 * @param {Object} [object] The object to query.
	 * @param {string} key The key of the property to get.
	 * @returns {*} Returns the property value.
	 */

	function getValue$1(object, key) {
	  return object == null ? undefined : object[key];
	}

	var _getValue = getValue$1;

	var baseIsNative = _baseIsNative,
	    getValue = _getValue;

	/**
	 * Gets the native function at `key` of `object`.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @param {string} key The key of the method to get.
	 * @returns {*} Returns the function if it's native, else `undefined`.
	 */
	function getNative$7(object, key) {
	  var value = getValue(object, key);
	  return baseIsNative(value) ? value : undefined;
	}

	var _getNative = getNative$7;

	var getNative$6 = _getNative;

	var defineProperty$1 = (function() {
	  try {
	    var func = getNative$6(Object, 'defineProperty');
	    func({}, '', {});
	    return func;
	  } catch (e) {}
	}());

	var _defineProperty = defineProperty$1;

	var defineProperty = _defineProperty;

	/**
	 * The base implementation of `assignValue` and `assignMergeValue` without
	 * value checks.
	 *
	 * @private
	 * @param {Object} object The object to modify.
	 * @param {string} key The key of the property to assign.
	 * @param {*} value The value to assign.
	 */
	function baseAssignValue$1(object, key, value) {
	  if (key == '__proto__' && defineProperty) {
	    defineProperty(object, key, {
	      'configurable': true,
	      'enumerable': true,
	      'value': value,
	      'writable': true
	    });
	  } else {
	    object[key] = value;
	  }
	}

	var _baseAssignValue = baseAssignValue$1;

	/**
	 * Creates a base function for methods like `_.forIn` and `_.forOwn`.
	 *
	 * @private
	 * @param {boolean} [fromRight] Specify iterating from right to left.
	 * @returns {Function} Returns the new base function.
	 */

	function createBaseFor$1(fromRight) {
	  return function(object, iteratee, keysFunc) {
	    var index = -1,
	        iterable = Object(object),
	        props = keysFunc(object),
	        length = props.length;

	    while (length--) {
	      var key = props[fromRight ? length : ++index];
	      if (iteratee(iterable[key], key, iterable) === false) {
	        break;
	      }
	    }
	    return object;
	  };
	}

	var _createBaseFor = createBaseFor$1;

	var createBaseFor = _createBaseFor;

	/**
	 * The base implementation of `baseForOwn` which iterates over `object`
	 * properties returned by `keysFunc` and invokes `iteratee` for each property.
	 * Iteratee functions may exit iteration early by explicitly returning `false`.
	 *
	 * @private
	 * @param {Object} object The object to iterate over.
	 * @param {Function} iteratee The function invoked per iteration.
	 * @param {Function} keysFunc The function to get the keys of `object`.
	 * @returns {Object} Returns `object`.
	 */
	var baseFor$1 = createBaseFor();

	var _baseFor = baseFor$1;

	/**
	 * The base implementation of `_.times` without support for iteratee shorthands
	 * or max array length checks.
	 *
	 * @private
	 * @param {number} n The number of times to invoke `iteratee`.
	 * @param {Function} iteratee The function invoked per iteration.
	 * @returns {Array} Returns the array of results.
	 */

	function baseTimes$1(n, iteratee) {
	  var index = -1,
	      result = Array(n);

	  while (++index < n) {
	    result[index] = iteratee(index);
	  }
	  return result;
	}

	var _baseTimes = baseTimes$1;

	var baseGetTag$3 = _baseGetTag,
	    isObjectLike$4 = isObjectLike_1;

	/** `Object#toString` result references. */
	var argsTag$2 = '[object Arguments]';

	/**
	 * The base implementation of `_.isArguments`.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is an `arguments` object,
	 */
	function baseIsArguments$1(value) {
	  return isObjectLike$4(value) && baseGetTag$3(value) == argsTag$2;
	}

	var _baseIsArguments = baseIsArguments$1;

	var baseIsArguments = _baseIsArguments,
	    isObjectLike$3 = isObjectLike_1;

	/** Used for built-in method references. */
	var objectProto$8 = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty$6 = objectProto$8.hasOwnProperty;

	/** Built-in value references. */
	var propertyIsEnumerable$1 = objectProto$8.propertyIsEnumerable;

	/**
	 * Checks if `value` is likely an `arguments` object.
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is an `arguments` object,
	 *  else `false`.
	 * @example
	 *
	 * _.isArguments(function() { return arguments; }());
	 * // => true
	 *
	 * _.isArguments([1, 2, 3]);
	 * // => false
	 */
	var isArguments$2 = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
	  return isObjectLike$3(value) && hasOwnProperty$6.call(value, 'callee') &&
	    !propertyIsEnumerable$1.call(value, 'callee');
	};

	var isArguments_1 = isArguments$2;

	var isBuffer$2 = {exports: {}};

	/**
	 * This method returns `false`.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.13.0
	 * @category Util
	 * @returns {boolean} Returns `false`.
	 * @example
	 *
	 * _.times(2, _.stubFalse);
	 * // => [false, false]
	 */

	function stubFalse() {
	  return false;
	}

	var stubFalse_1 = stubFalse;

	(function (module, exports) {
	var root = _root,
	    stubFalse = stubFalse_1;

	/** Detect free variable `exports`. */
	var freeExports = exports && !exports.nodeType && exports;

	/** Detect free variable `module`. */
	var freeModule = freeExports && 'object' == 'object' && module && !module.nodeType && module;

	/** Detect the popular CommonJS extension `module.exports`. */
	var moduleExports = freeModule && freeModule.exports === freeExports;

	/** Built-in value references. */
	var Buffer = moduleExports ? root.Buffer : undefined;

	/* Built-in method references for those with the same name as other `lodash` methods. */
	var nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;

	/**
	 * Checks if `value` is a buffer.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.3.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
	 * @example
	 *
	 * _.isBuffer(new Buffer(2));
	 * // => true
	 *
	 * _.isBuffer(new Uint8Array(2));
	 * // => false
	 */
	var isBuffer = nativeIsBuffer || stubFalse;

	module.exports = isBuffer;
	}(isBuffer$2, isBuffer$2.exports));

	/** Used as references for various `Number` constants. */

	var MAX_SAFE_INTEGER$1 = 9007199254740991;

	/** Used to detect unsigned integer values. */
	var reIsUint = /^(?:0|[1-9]\d*)$/;

	/**
	 * Checks if `value` is a valid array-like index.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
	 * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
	 */
	function isIndex$2(value, length) {
	  var type = typeof value;
	  length = length == null ? MAX_SAFE_INTEGER$1 : length;

	  return !!length &&
	    (type == 'number' ||
	      (type != 'symbol' && reIsUint.test(value))) &&
	        (value > -1 && value % 1 == 0 && value < length);
	}

	var _isIndex = isIndex$2;

	/** Used as references for various `Number` constants. */

	var MAX_SAFE_INTEGER = 9007199254740991;

	/**
	 * Checks if `value` is a valid array-like length.
	 *
	 * **Note:** This method is loosely based on
	 * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
	 * @example
	 *
	 * _.isLength(3);
	 * // => true
	 *
	 * _.isLength(Number.MIN_VALUE);
	 * // => false
	 *
	 * _.isLength(Infinity);
	 * // => false
	 *
	 * _.isLength('3');
	 * // => false
	 */
	function isLength$3(value) {
	  return typeof value == 'number' &&
	    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
	}

	var isLength_1 = isLength$3;

	var baseGetTag$2 = _baseGetTag,
	    isLength$2 = isLength_1,
	    isObjectLike$2 = isObjectLike_1;

	/** `Object#toString` result references. */
	var argsTag$1 = '[object Arguments]',
	    arrayTag$1 = '[object Array]',
	    boolTag$1 = '[object Boolean]',
	    dateTag$1 = '[object Date]',
	    errorTag$1 = '[object Error]',
	    funcTag = '[object Function]',
	    mapTag$2 = '[object Map]',
	    numberTag$1 = '[object Number]',
	    objectTag$2 = '[object Object]',
	    regexpTag$1 = '[object RegExp]',
	    setTag$2 = '[object Set]',
	    stringTag$1 = '[object String]',
	    weakMapTag$1 = '[object WeakMap]';

	var arrayBufferTag$1 = '[object ArrayBuffer]',
	    dataViewTag$2 = '[object DataView]',
	    float32Tag = '[object Float32Array]',
	    float64Tag = '[object Float64Array]',
	    int8Tag = '[object Int8Array]',
	    int16Tag = '[object Int16Array]',
	    int32Tag = '[object Int32Array]',
	    uint8Tag = '[object Uint8Array]',
	    uint8ClampedTag = '[object Uint8ClampedArray]',
	    uint16Tag = '[object Uint16Array]',
	    uint32Tag = '[object Uint32Array]';

	/** Used to identify `toStringTag` values of typed arrays. */
	var typedArrayTags = {};
	typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
	typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
	typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
	typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
	typedArrayTags[uint32Tag] = true;
	typedArrayTags[argsTag$1] = typedArrayTags[arrayTag$1] =
	typedArrayTags[arrayBufferTag$1] = typedArrayTags[boolTag$1] =
	typedArrayTags[dataViewTag$2] = typedArrayTags[dateTag$1] =
	typedArrayTags[errorTag$1] = typedArrayTags[funcTag] =
	typedArrayTags[mapTag$2] = typedArrayTags[numberTag$1] =
	typedArrayTags[objectTag$2] = typedArrayTags[regexpTag$1] =
	typedArrayTags[setTag$2] = typedArrayTags[stringTag$1] =
	typedArrayTags[weakMapTag$1] = false;

	/**
	 * The base implementation of `_.isTypedArray` without Node.js optimizations.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
	 */
	function baseIsTypedArray$1(value) {
	  return isObjectLike$2(value) &&
	    isLength$2(value.length) && !!typedArrayTags[baseGetTag$2(value)];
	}

	var _baseIsTypedArray = baseIsTypedArray$1;

	/**
	 * The base implementation of `_.unary` without support for storing metadata.
	 *
	 * @private
	 * @param {Function} func The function to cap arguments for.
	 * @returns {Function} Returns the new capped function.
	 */

	function baseUnary$1(func) {
	  return function(value) {
	    return func(value);
	  };
	}

	var _baseUnary = baseUnary$1;

	var _nodeUtil = {exports: {}};

	(function (module, exports) {
	var freeGlobal = _freeGlobal;

	/** Detect free variable `exports`. */
	var freeExports = exports && !exports.nodeType && exports;

	/** Detect free variable `module`. */
	var freeModule = freeExports && 'object' == 'object' && module && !module.nodeType && module;

	/** Detect the popular CommonJS extension `module.exports`. */
	var moduleExports = freeModule && freeModule.exports === freeExports;

	/** Detect free variable `process` from Node.js. */
	var freeProcess = moduleExports && freeGlobal.process;

	/** Used to access faster Node.js helpers. */
	var nodeUtil = (function() {
	  try {
	    // Use `util.types` for Node.js 10+.
	    var types = freeModule && freeModule.require && freeModule.require('util').types;

	    if (types) {
	      return types;
	    }

	    // Legacy `process.binding('util')` for Node.js < 10.
	    return freeProcess && freeProcess.binding && freeProcess.binding('util');
	  } catch (e) {}
	}());

	module.exports = nodeUtil;
	}(_nodeUtil, _nodeUtil.exports));

	var baseIsTypedArray = _baseIsTypedArray,
	    baseUnary = _baseUnary,
	    nodeUtil = _nodeUtil.exports;

	/* Node.js helper references. */
	var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;

	/**
	 * Checks if `value` is classified as a typed array.
	 *
	 * @static
	 * @memberOf _
	 * @since 3.0.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
	 * @example
	 *
	 * _.isTypedArray(new Uint8Array);
	 * // => true
	 *
	 * _.isTypedArray([]);
	 * // => false
	 */
	var isTypedArray$2 = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;

	var isTypedArray_1 = isTypedArray$2;

	var baseTimes = _baseTimes,
	    isArguments$1 = isArguments_1,
	    isArray$7 = isArray_1,
	    isBuffer$1 = isBuffer$2.exports,
	    isIndex$1 = _isIndex,
	    isTypedArray$1 = isTypedArray_1;

	/** Used for built-in method references. */
	var objectProto$7 = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty$5 = objectProto$7.hasOwnProperty;

	/**
	 * Creates an array of the enumerable property names of the array-like `value`.
	 *
	 * @private
	 * @param {*} value The value to query.
	 * @param {boolean} inherited Specify returning inherited property names.
	 * @returns {Array} Returns the array of property names.
	 */
	function arrayLikeKeys$1(value, inherited) {
	  var isArr = isArray$7(value),
	      isArg = !isArr && isArguments$1(value),
	      isBuff = !isArr && !isArg && isBuffer$1(value),
	      isType = !isArr && !isArg && !isBuff && isTypedArray$1(value),
	      skipIndexes = isArr || isArg || isBuff || isType,
	      result = skipIndexes ? baseTimes(value.length, String) : [],
	      length = result.length;

	  for (var key in value) {
	    if ((inherited || hasOwnProperty$5.call(value, key)) &&
	        !(skipIndexes && (
	           // Safari 9 has enumerable `arguments.length` in strict mode.
	           key == 'length' ||
	           // Node.js 0.10 has enumerable non-index properties on buffers.
	           (isBuff && (key == 'offset' || key == 'parent')) ||
	           // PhantomJS 2 has enumerable non-index properties on typed arrays.
	           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
	           // Skip index properties.
	           isIndex$1(key, length)
	        ))) {
	      result.push(key);
	    }
	  }
	  return result;
	}

	var _arrayLikeKeys = arrayLikeKeys$1;

	/** Used for built-in method references. */

	var objectProto$6 = Object.prototype;

	/**
	 * Checks if `value` is likely a prototype object.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
	 */
	function isPrototype$1(value) {
	  var Ctor = value && value.constructor,
	      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto$6;

	  return value === proto;
	}

	var _isPrototype = isPrototype$1;

	var overArg = _overArg;

	/* Built-in method references for those with the same name as other `lodash` methods. */
	var nativeKeys$1 = overArg(Object.keys, Object);

	var _nativeKeys = nativeKeys$1;

	var isPrototype = _isPrototype,
	    nativeKeys = _nativeKeys;

	/** Used for built-in method references. */
	var objectProto$5 = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty$4 = objectProto$5.hasOwnProperty;

	/**
	 * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @returns {Array} Returns the array of property names.
	 */
	function baseKeys$1(object) {
	  if (!isPrototype(object)) {
	    return nativeKeys(object);
	  }
	  var result = [];
	  for (var key in Object(object)) {
	    if (hasOwnProperty$4.call(object, key) && key != 'constructor') {
	      result.push(key);
	    }
	  }
	  return result;
	}

	var _baseKeys = baseKeys$1;

	var isFunction = isFunction_1,
	    isLength$1 = isLength_1;

	/**
	 * Checks if `value` is array-like. A value is considered array-like if it's
	 * not a function and has a `value.length` that's an integer greater than or
	 * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
	 * @example
	 *
	 * _.isArrayLike([1, 2, 3]);
	 * // => true
	 *
	 * _.isArrayLike(document.body.children);
	 * // => true
	 *
	 * _.isArrayLike('abc');
	 * // => true
	 *
	 * _.isArrayLike(_.noop);
	 * // => false
	 */
	function isArrayLike$1(value) {
	  return value != null && isLength$1(value.length) && !isFunction(value);
	}

	var isArrayLike_1 = isArrayLike$1;

	var arrayLikeKeys = _arrayLikeKeys,
	    baseKeys = _baseKeys,
	    isArrayLike = isArrayLike_1;

	/**
	 * Creates an array of the own enumerable property names of `object`.
	 *
	 * **Note:** Non-object values are coerced to objects. See the
	 * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
	 * for more details.
	 *
	 * @static
	 * @since 0.1.0
	 * @memberOf _
	 * @category Object
	 * @param {Object} object The object to query.
	 * @returns {Array} Returns the array of property names.
	 * @example
	 *
	 * function Foo() {
	 *   this.a = 1;
	 *   this.b = 2;
	 * }
	 *
	 * Foo.prototype.c = 3;
	 *
	 * _.keys(new Foo);
	 * // => ['a', 'b'] (iteration order is not guaranteed)
	 *
	 * _.keys('hi');
	 * // => ['0', '1']
	 */
	function keys$3(object) {
	  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
	}

	var keys_1 = keys$3;

	var baseFor = _baseFor,
	    keys$2 = keys_1;

	/**
	 * The base implementation of `_.forOwn` without support for iteratee shorthands.
	 *
	 * @private
	 * @param {Object} object The object to iterate over.
	 * @param {Function} iteratee The function invoked per iteration.
	 * @returns {Object} Returns `object`.
	 */
	function baseForOwn$1(object, iteratee) {
	  return object && baseFor(object, iteratee, keys$2);
	}

	var _baseForOwn = baseForOwn$1;

	/**
	 * Removes all key-value entries from the list cache.
	 *
	 * @private
	 * @name clear
	 * @memberOf ListCache
	 */

	function listCacheClear$1() {
	  this.__data__ = [];
	  this.size = 0;
	}

	var _listCacheClear = listCacheClear$1;

	/**
	 * Performs a
	 * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
	 * comparison between two values to determine if they are equivalent.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to compare.
	 * @param {*} other The other value to compare.
	 * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
	 * @example
	 *
	 * var object = { 'a': 1 };
	 * var other = { 'a': 1 };
	 *
	 * _.eq(object, object);
	 * // => true
	 *
	 * _.eq(object, other);
	 * // => false
	 *
	 * _.eq('a', 'a');
	 * // => true
	 *
	 * _.eq('a', Object('a'));
	 * // => false
	 *
	 * _.eq(NaN, NaN);
	 * // => true
	 */

	function eq$2(value, other) {
	  return value === other || (value !== value && other !== other);
	}

	var eq_1 = eq$2;

	var eq$1 = eq_1;

	/**
	 * Gets the index at which the `key` is found in `array` of key-value pairs.
	 *
	 * @private
	 * @param {Array} array The array to inspect.
	 * @param {*} key The key to search for.
	 * @returns {number} Returns the index of the matched value, else `-1`.
	 */
	function assocIndexOf$4(array, key) {
	  var length = array.length;
	  while (length--) {
	    if (eq$1(array[length][0], key)) {
	      return length;
	    }
	  }
	  return -1;
	}

	var _assocIndexOf = assocIndexOf$4;

	var assocIndexOf$3 = _assocIndexOf;

	/** Used for built-in method references. */
	var arrayProto = Array.prototype;

	/** Built-in value references. */
	var splice = arrayProto.splice;

	/**
	 * Removes `key` and its value from the list cache.
	 *
	 * @private
	 * @name delete
	 * @memberOf ListCache
	 * @param {string} key The key of the value to remove.
	 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
	 */
	function listCacheDelete$1(key) {
	  var data = this.__data__,
	      index = assocIndexOf$3(data, key);

	  if (index < 0) {
	    return false;
	  }
	  var lastIndex = data.length - 1;
	  if (index == lastIndex) {
	    data.pop();
	  } else {
	    splice.call(data, index, 1);
	  }
	  --this.size;
	  return true;
	}

	var _listCacheDelete = listCacheDelete$1;

	var assocIndexOf$2 = _assocIndexOf;

	/**
	 * Gets the list cache value for `key`.
	 *
	 * @private
	 * @name get
	 * @memberOf ListCache
	 * @param {string} key The key of the value to get.
	 * @returns {*} Returns the entry value.
	 */
	function listCacheGet$1(key) {
	  var data = this.__data__,
	      index = assocIndexOf$2(data, key);

	  return index < 0 ? undefined : data[index][1];
	}

	var _listCacheGet = listCacheGet$1;

	var assocIndexOf$1 = _assocIndexOf;

	/**
	 * Checks if a list cache value for `key` exists.
	 *
	 * @private
	 * @name has
	 * @memberOf ListCache
	 * @param {string} key The key of the entry to check.
	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
	 */
	function listCacheHas$1(key) {
	  return assocIndexOf$1(this.__data__, key) > -1;
	}

	var _listCacheHas = listCacheHas$1;

	var assocIndexOf = _assocIndexOf;

	/**
	 * Sets the list cache `key` to `value`.
	 *
	 * @private
	 * @name set
	 * @memberOf ListCache
	 * @param {string} key The key of the value to set.
	 * @param {*} value The value to set.
	 * @returns {Object} Returns the list cache instance.
	 */
	function listCacheSet$1(key, value) {
	  var data = this.__data__,
	      index = assocIndexOf(data, key);

	  if (index < 0) {
	    ++this.size;
	    data.push([key, value]);
	  } else {
	    data[index][1] = value;
	  }
	  return this;
	}

	var _listCacheSet = listCacheSet$1;

	var listCacheClear = _listCacheClear,
	    listCacheDelete = _listCacheDelete,
	    listCacheGet = _listCacheGet,
	    listCacheHas = _listCacheHas,
	    listCacheSet = _listCacheSet;

	/**
	 * Creates an list cache object.
	 *
	 * @private
	 * @constructor
	 * @param {Array} [entries] The key-value pairs to cache.
	 */
	function ListCache$4(entries) {
	  var index = -1,
	      length = entries == null ? 0 : entries.length;

	  this.clear();
	  while (++index < length) {
	    var entry = entries[index];
	    this.set(entry[0], entry[1]);
	  }
	}

	// Add methods to `ListCache`.
	ListCache$4.prototype.clear = listCacheClear;
	ListCache$4.prototype['delete'] = listCacheDelete;
	ListCache$4.prototype.get = listCacheGet;
	ListCache$4.prototype.has = listCacheHas;
	ListCache$4.prototype.set = listCacheSet;

	var _ListCache = ListCache$4;

	var ListCache$3 = _ListCache;

	/**
	 * Removes all key-value entries from the stack.
	 *
	 * @private
	 * @name clear
	 * @memberOf Stack
	 */
	function stackClear$1() {
	  this.__data__ = new ListCache$3;
	  this.size = 0;
	}

	var _stackClear = stackClear$1;

	/**
	 * Removes `key` and its value from the stack.
	 *
	 * @private
	 * @name delete
	 * @memberOf Stack
	 * @param {string} key The key of the value to remove.
	 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
	 */

	function stackDelete$1(key) {
	  var data = this.__data__,
	      result = data['delete'](key);

	  this.size = data.size;
	  return result;
	}

	var _stackDelete = stackDelete$1;

	/**
	 * Gets the stack value for `key`.
	 *
	 * @private
	 * @name get
	 * @memberOf Stack
	 * @param {string} key The key of the value to get.
	 * @returns {*} Returns the entry value.
	 */

	function stackGet$1(key) {
	  return this.__data__.get(key);
	}

	var _stackGet = stackGet$1;

	/**
	 * Checks if a stack value for `key` exists.
	 *
	 * @private
	 * @name has
	 * @memberOf Stack
	 * @param {string} key The key of the entry to check.
	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
	 */

	function stackHas$1(key) {
	  return this.__data__.has(key);
	}

	var _stackHas = stackHas$1;

	var getNative$5 = _getNative,
	    root$5 = _root;

	/* Built-in method references that are verified to be native. */
	var Map$3 = getNative$5(root$5, 'Map');

	var _Map = Map$3;

	var getNative$4 = _getNative;

	/* Built-in method references that are verified to be native. */
	var nativeCreate$4 = getNative$4(Object, 'create');

	var _nativeCreate = nativeCreate$4;

	var nativeCreate$3 = _nativeCreate;

	/**
	 * Removes all key-value entries from the hash.
	 *
	 * @private
	 * @name clear
	 * @memberOf Hash
	 */
	function hashClear$1() {
	  this.__data__ = nativeCreate$3 ? nativeCreate$3(null) : {};
	  this.size = 0;
	}

	var _hashClear = hashClear$1;

	/**
	 * Removes `key` and its value from the hash.
	 *
	 * @private
	 * @name delete
	 * @memberOf Hash
	 * @param {Object} hash The hash to modify.
	 * @param {string} key The key of the value to remove.
	 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
	 */

	function hashDelete$1(key) {
	  var result = this.has(key) && delete this.__data__[key];
	  this.size -= result ? 1 : 0;
	  return result;
	}

	var _hashDelete = hashDelete$1;

	var nativeCreate$2 = _nativeCreate;

	/** Used to stand-in for `undefined` hash values. */
	var HASH_UNDEFINED$2 = '__lodash_hash_undefined__';

	/** Used for built-in method references. */
	var objectProto$4 = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty$3 = objectProto$4.hasOwnProperty;

	/**
	 * Gets the hash value for `key`.
	 *
	 * @private
	 * @name get
	 * @memberOf Hash
	 * @param {string} key The key of the value to get.
	 * @returns {*} Returns the entry value.
	 */
	function hashGet$1(key) {
	  var data = this.__data__;
	  if (nativeCreate$2) {
	    var result = data[key];
	    return result === HASH_UNDEFINED$2 ? undefined : result;
	  }
	  return hasOwnProperty$3.call(data, key) ? data[key] : undefined;
	}

	var _hashGet = hashGet$1;

	var nativeCreate$1 = _nativeCreate;

	/** Used for built-in method references. */
	var objectProto$3 = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty$2 = objectProto$3.hasOwnProperty;

	/**
	 * Checks if a hash value for `key` exists.
	 *
	 * @private
	 * @name has
	 * @memberOf Hash
	 * @param {string} key The key of the entry to check.
	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
	 */
	function hashHas$1(key) {
	  var data = this.__data__;
	  return nativeCreate$1 ? (data[key] !== undefined) : hasOwnProperty$2.call(data, key);
	}

	var _hashHas = hashHas$1;

	var nativeCreate = _nativeCreate;

	/** Used to stand-in for `undefined` hash values. */
	var HASH_UNDEFINED$1 = '__lodash_hash_undefined__';

	/**
	 * Sets the hash `key` to `value`.
	 *
	 * @private
	 * @name set
	 * @memberOf Hash
	 * @param {string} key The key of the value to set.
	 * @param {*} value The value to set.
	 * @returns {Object} Returns the hash instance.
	 */
	function hashSet$1(key, value) {
	  var data = this.__data__;
	  this.size += this.has(key) ? 0 : 1;
	  data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED$1 : value;
	  return this;
	}

	var _hashSet = hashSet$1;

	var hashClear = _hashClear,
	    hashDelete = _hashDelete,
	    hashGet = _hashGet,
	    hashHas = _hashHas,
	    hashSet = _hashSet;

	/**
	 * Creates a hash object.
	 *
	 * @private
	 * @constructor
	 * @param {Array} [entries] The key-value pairs to cache.
	 */
	function Hash$1(entries) {
	  var index = -1,
	      length = entries == null ? 0 : entries.length;

	  this.clear();
	  while (++index < length) {
	    var entry = entries[index];
	    this.set(entry[0], entry[1]);
	  }
	}

	// Add methods to `Hash`.
	Hash$1.prototype.clear = hashClear;
	Hash$1.prototype['delete'] = hashDelete;
	Hash$1.prototype.get = hashGet;
	Hash$1.prototype.has = hashHas;
	Hash$1.prototype.set = hashSet;

	var _Hash = Hash$1;

	var Hash = _Hash,
	    ListCache$2 = _ListCache,
	    Map$2 = _Map;

	/**
	 * Removes all key-value entries from the map.
	 *
	 * @private
	 * @name clear
	 * @memberOf MapCache
	 */
	function mapCacheClear$1() {
	  this.size = 0;
	  this.__data__ = {
	    'hash': new Hash,
	    'map': new (Map$2 || ListCache$2),
	    'string': new Hash
	  };
	}

	var _mapCacheClear = mapCacheClear$1;

	/**
	 * Checks if `value` is suitable for use as unique object key.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
	 */

	function isKeyable$1(value) {
	  var type = typeof value;
	  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
	    ? (value !== '__proto__')
	    : (value === null);
	}

	var _isKeyable = isKeyable$1;

	var isKeyable = _isKeyable;

	/**
	 * Gets the data for `map`.
	 *
	 * @private
	 * @param {Object} map The map to query.
	 * @param {string} key The reference key.
	 * @returns {*} Returns the map data.
	 */
	function getMapData$4(map, key) {
	  var data = map.__data__;
	  return isKeyable(key)
	    ? data[typeof key == 'string' ? 'string' : 'hash']
	    : data.map;
	}

	var _getMapData = getMapData$4;

	var getMapData$3 = _getMapData;

	/**
	 * Removes `key` and its value from the map.
	 *
	 * @private
	 * @name delete
	 * @memberOf MapCache
	 * @param {string} key The key of the value to remove.
	 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
	 */
	function mapCacheDelete$1(key) {
	  var result = getMapData$3(this, key)['delete'](key);
	  this.size -= result ? 1 : 0;
	  return result;
	}

	var _mapCacheDelete = mapCacheDelete$1;

	var getMapData$2 = _getMapData;

	/**
	 * Gets the map value for `key`.
	 *
	 * @private
	 * @name get
	 * @memberOf MapCache
	 * @param {string} key The key of the value to get.
	 * @returns {*} Returns the entry value.
	 */
	function mapCacheGet$1(key) {
	  return getMapData$2(this, key).get(key);
	}

	var _mapCacheGet = mapCacheGet$1;

	var getMapData$1 = _getMapData;

	/**
	 * Checks if a map value for `key` exists.
	 *
	 * @private
	 * @name has
	 * @memberOf MapCache
	 * @param {string} key The key of the entry to check.
	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
	 */
	function mapCacheHas$1(key) {
	  return getMapData$1(this, key).has(key);
	}

	var _mapCacheHas = mapCacheHas$1;

	var getMapData = _getMapData;

	/**
	 * Sets the map `key` to `value`.
	 *
	 * @private
	 * @name set
	 * @memberOf MapCache
	 * @param {string} key The key of the value to set.
	 * @param {*} value The value to set.
	 * @returns {Object} Returns the map cache instance.
	 */
	function mapCacheSet$1(key, value) {
	  var data = getMapData(this, key),
	      size = data.size;

	  data.set(key, value);
	  this.size += data.size == size ? 0 : 1;
	  return this;
	}

	var _mapCacheSet = mapCacheSet$1;

	var mapCacheClear = _mapCacheClear,
	    mapCacheDelete = _mapCacheDelete,
	    mapCacheGet = _mapCacheGet,
	    mapCacheHas = _mapCacheHas,
	    mapCacheSet = _mapCacheSet;

	/**
	 * Creates a map cache object to store key-value pairs.
	 *
	 * @private
	 * @constructor
	 * @param {Array} [entries] The key-value pairs to cache.
	 */
	function MapCache$3(entries) {
	  var index = -1,
	      length = entries == null ? 0 : entries.length;

	  this.clear();
	  while (++index < length) {
	    var entry = entries[index];
	    this.set(entry[0], entry[1]);
	  }
	}

	// Add methods to `MapCache`.
	MapCache$3.prototype.clear = mapCacheClear;
	MapCache$3.prototype['delete'] = mapCacheDelete;
	MapCache$3.prototype.get = mapCacheGet;
	MapCache$3.prototype.has = mapCacheHas;
	MapCache$3.prototype.set = mapCacheSet;

	var _MapCache = MapCache$3;

	var ListCache$1 = _ListCache,
	    Map$1 = _Map,
	    MapCache$2 = _MapCache;

	/** Used as the size to enable large array optimizations. */
	var LARGE_ARRAY_SIZE = 200;

	/**
	 * Sets the stack `key` to `value`.
	 *
	 * @private
	 * @name set
	 * @memberOf Stack
	 * @param {string} key The key of the value to set.
	 * @param {*} value The value to set.
	 * @returns {Object} Returns the stack cache instance.
	 */
	function stackSet$1(key, value) {
	  var data = this.__data__;
	  if (data instanceof ListCache$1) {
	    var pairs = data.__data__;
	    if (!Map$1 || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
	      pairs.push([key, value]);
	      this.size = ++data.size;
	      return this;
	    }
	    data = this.__data__ = new MapCache$2(pairs);
	  }
	  data.set(key, value);
	  this.size = data.size;
	  return this;
	}

	var _stackSet = stackSet$1;

	var ListCache = _ListCache,
	    stackClear = _stackClear,
	    stackDelete = _stackDelete,
	    stackGet = _stackGet,
	    stackHas = _stackHas,
	    stackSet = _stackSet;

	/**
	 * Creates a stack cache object to store key-value pairs.
	 *
	 * @private
	 * @constructor
	 * @param {Array} [entries] The key-value pairs to cache.
	 */
	function Stack$2(entries) {
	  var data = this.__data__ = new ListCache(entries);
	  this.size = data.size;
	}

	// Add methods to `Stack`.
	Stack$2.prototype.clear = stackClear;
	Stack$2.prototype['delete'] = stackDelete;
	Stack$2.prototype.get = stackGet;
	Stack$2.prototype.has = stackHas;
	Stack$2.prototype.set = stackSet;

	var _Stack = Stack$2;

	/** Used to stand-in for `undefined` hash values. */

	var HASH_UNDEFINED = '__lodash_hash_undefined__';

	/**
	 * Adds `value` to the array cache.
	 *
	 * @private
	 * @name add
	 * @memberOf SetCache
	 * @alias push
	 * @param {*} value The value to cache.
	 * @returns {Object} Returns the cache instance.
	 */
	function setCacheAdd$1(value) {
	  this.__data__.set(value, HASH_UNDEFINED);
	  return this;
	}

	var _setCacheAdd = setCacheAdd$1;

	/**
	 * Checks if `value` is in the array cache.
	 *
	 * @private
	 * @name has
	 * @memberOf SetCache
	 * @param {*} value The value to search for.
	 * @returns {number} Returns `true` if `value` is found, else `false`.
	 */

	function setCacheHas$1(value) {
	  return this.__data__.has(value);
	}

	var _setCacheHas = setCacheHas$1;

	var MapCache$1 = _MapCache,
	    setCacheAdd = _setCacheAdd,
	    setCacheHas = _setCacheHas;

	/**
	 *
	 * Creates an array cache object to store unique values.
	 *
	 * @private
	 * @constructor
	 * @param {Array} [values] The values to cache.
	 */
	function SetCache$1(values) {
	  var index = -1,
	      length = values == null ? 0 : values.length;

	  this.__data__ = new MapCache$1;
	  while (++index < length) {
	    this.add(values[index]);
	  }
	}

	// Add methods to `SetCache`.
	SetCache$1.prototype.add = SetCache$1.prototype.push = setCacheAdd;
	SetCache$1.prototype.has = setCacheHas;

	var _SetCache = SetCache$1;

	/**
	 * A specialized version of `_.some` for arrays without support for iteratee
	 * shorthands.
	 *
	 * @private
	 * @param {Array} [array] The array to iterate over.
	 * @param {Function} predicate The function invoked per iteration.
	 * @returns {boolean} Returns `true` if any element passes the predicate check,
	 *  else `false`.
	 */

	function arraySome$1(array, predicate) {
	  var index = -1,
	      length = array == null ? 0 : array.length;

	  while (++index < length) {
	    if (predicate(array[index], index, array)) {
	      return true;
	    }
	  }
	  return false;
	}

	var _arraySome = arraySome$1;

	/**
	 * Checks if a `cache` value for `key` exists.
	 *
	 * @private
	 * @param {Object} cache The cache to query.
	 * @param {string} key The key of the entry to check.
	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
	 */

	function cacheHas$1(cache, key) {
	  return cache.has(key);
	}

	var _cacheHas = cacheHas$1;

	var SetCache = _SetCache,
	    arraySome = _arraySome,
	    cacheHas = _cacheHas;

	/** Used to compose bitmasks for value comparisons. */
	var COMPARE_PARTIAL_FLAG$5 = 1,
	    COMPARE_UNORDERED_FLAG$3 = 2;

	/**
	 * A specialized version of `baseIsEqualDeep` for arrays with support for
	 * partial deep comparisons.
	 *
	 * @private
	 * @param {Array} array The array to compare.
	 * @param {Array} other The other array to compare.
	 * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
	 * @param {Function} customizer The function to customize comparisons.
	 * @param {Function} equalFunc The function to determine equivalents of values.
	 * @param {Object} stack Tracks traversed `array` and `other` objects.
	 * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
	 */
	function equalArrays$2(array, other, bitmask, customizer, equalFunc, stack) {
	  var isPartial = bitmask & COMPARE_PARTIAL_FLAG$5,
	      arrLength = array.length,
	      othLength = other.length;

	  if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
	    return false;
	  }
	  // Check that cyclic values are equal.
	  var arrStacked = stack.get(array);
	  var othStacked = stack.get(other);
	  if (arrStacked && othStacked) {
	    return arrStacked == other && othStacked == array;
	  }
	  var index = -1,
	      result = true,
	      seen = (bitmask & COMPARE_UNORDERED_FLAG$3) ? new SetCache : undefined;

	  stack.set(array, other);
	  stack.set(other, array);

	  // Ignore non-index properties.
	  while (++index < arrLength) {
	    var arrValue = array[index],
	        othValue = other[index];

	    if (customizer) {
	      var compared = isPartial
	        ? customizer(othValue, arrValue, index, other, array, stack)
	        : customizer(arrValue, othValue, index, array, other, stack);
	    }
	    if (compared !== undefined) {
	      if (compared) {
	        continue;
	      }
	      result = false;
	      break;
	    }
	    // Recursively compare arrays (susceptible to call stack limits).
	    if (seen) {
	      if (!arraySome(other, function(othValue, othIndex) {
	            if (!cacheHas(seen, othIndex) &&
	                (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
	              return seen.push(othIndex);
	            }
	          })) {
	        result = false;
	        break;
	      }
	    } else if (!(
	          arrValue === othValue ||
	            equalFunc(arrValue, othValue, bitmask, customizer, stack)
	        )) {
	      result = false;
	      break;
	    }
	  }
	  stack['delete'](array);
	  stack['delete'](other);
	  return result;
	}

	var _equalArrays = equalArrays$2;

	var root$4 = _root;

	/** Built-in value references. */
	var Uint8Array$1 = root$4.Uint8Array;

	var _Uint8Array = Uint8Array$1;

	/**
	 * Converts `map` to its key-value pairs.
	 *
	 * @private
	 * @param {Object} map The map to convert.
	 * @returns {Array} Returns the key-value pairs.
	 */

	function mapToArray$1(map) {
	  var index = -1,
	      result = Array(map.size);

	  map.forEach(function(value, key) {
	    result[++index] = [key, value];
	  });
	  return result;
	}

	var _mapToArray = mapToArray$1;

	/**
	 * Converts `set` to an array of its values.
	 *
	 * @private
	 * @param {Object} set The set to convert.
	 * @returns {Array} Returns the values.
	 */

	function setToArray$1(set) {
	  var index = -1,
	      result = Array(set.size);

	  set.forEach(function(value) {
	    result[++index] = value;
	  });
	  return result;
	}

	var _setToArray = setToArray$1;

	var Symbol$2 = _Symbol,
	    Uint8Array = _Uint8Array,
	    eq = eq_1,
	    equalArrays$1 = _equalArrays,
	    mapToArray = _mapToArray,
	    setToArray = _setToArray;

	/** Used to compose bitmasks for value comparisons. */
	var COMPARE_PARTIAL_FLAG$4 = 1,
	    COMPARE_UNORDERED_FLAG$2 = 2;

	/** `Object#toString` result references. */
	var boolTag = '[object Boolean]',
	    dateTag = '[object Date]',
	    errorTag = '[object Error]',
	    mapTag$1 = '[object Map]',
	    numberTag = '[object Number]',
	    regexpTag = '[object RegExp]',
	    setTag$1 = '[object Set]',
	    stringTag = '[object String]',
	    symbolTag$1 = '[object Symbol]';

	var arrayBufferTag = '[object ArrayBuffer]',
	    dataViewTag$1 = '[object DataView]';

	/** Used to convert symbols to primitives and strings. */
	var symbolProto$1 = Symbol$2 ? Symbol$2.prototype : undefined,
	    symbolValueOf = symbolProto$1 ? symbolProto$1.valueOf : undefined;

	/**
	 * A specialized version of `baseIsEqualDeep` for comparing objects of
	 * the same `toStringTag`.
	 *
	 * **Note:** This function only supports comparing values with tags of
	 * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
	 *
	 * @private
	 * @param {Object} object The object to compare.
	 * @param {Object} other The other object to compare.
	 * @param {string} tag The `toStringTag` of the objects to compare.
	 * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
	 * @param {Function} customizer The function to customize comparisons.
	 * @param {Function} equalFunc The function to determine equivalents of values.
	 * @param {Object} stack Tracks traversed `object` and `other` objects.
	 * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
	 */
	function equalByTag$1(object, other, tag, bitmask, customizer, equalFunc, stack) {
	  switch (tag) {
	    case dataViewTag$1:
	      if ((object.byteLength != other.byteLength) ||
	          (object.byteOffset != other.byteOffset)) {
	        return false;
	      }
	      object = object.buffer;
	      other = other.buffer;

	    case arrayBufferTag:
	      if ((object.byteLength != other.byteLength) ||
	          !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
	        return false;
	      }
	      return true;

	    case boolTag:
	    case dateTag:
	    case numberTag:
	      // Coerce booleans to `1` or `0` and dates to milliseconds.
	      // Invalid dates are coerced to `NaN`.
	      return eq(+object, +other);

	    case errorTag:
	      return object.name == other.name && object.message == other.message;

	    case regexpTag:
	    case stringTag:
	      // Coerce regexes to strings and treat strings, primitives and objects,
	      // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
	      // for more details.
	      return object == (other + '');

	    case mapTag$1:
	      var convert = mapToArray;

	    case setTag$1:
	      var isPartial = bitmask & COMPARE_PARTIAL_FLAG$4;
	      convert || (convert = setToArray);

	      if (object.size != other.size && !isPartial) {
	        return false;
	      }
	      // Assume cyclic values are equal.
	      var stacked = stack.get(object);
	      if (stacked) {
	        return stacked == other;
	      }
	      bitmask |= COMPARE_UNORDERED_FLAG$2;

	      // Recursively compare objects (susceptible to call stack limits).
	      stack.set(object, other);
	      var result = equalArrays$1(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
	      stack['delete'](object);
	      return result;

	    case symbolTag$1:
	      if (symbolValueOf) {
	        return symbolValueOf.call(object) == symbolValueOf.call(other);
	      }
	  }
	  return false;
	}

	var _equalByTag = equalByTag$1;

	/**
	 * Appends the elements of `values` to `array`.
	 *
	 * @private
	 * @param {Array} array The array to modify.
	 * @param {Array} values The values to append.
	 * @returns {Array} Returns `array`.
	 */

	function arrayPush$1(array, values) {
	  var index = -1,
	      length = values.length,
	      offset = array.length;

	  while (++index < length) {
	    array[offset + index] = values[index];
	  }
	  return array;
	}

	var _arrayPush = arrayPush$1;

	var arrayPush = _arrayPush,
	    isArray$6 = isArray_1;

	/**
	 * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
	 * `keysFunc` and `symbolsFunc` to get the enumerable property names and
	 * symbols of `object`.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @param {Function} keysFunc The function to get the keys of `object`.
	 * @param {Function} symbolsFunc The function to get the symbols of `object`.
	 * @returns {Array} Returns the array of property names and symbols.
	 */
	function baseGetAllKeys$1(object, keysFunc, symbolsFunc) {
	  var result = keysFunc(object);
	  return isArray$6(object) ? result : arrayPush(result, symbolsFunc(object));
	}

	var _baseGetAllKeys = baseGetAllKeys$1;

	/**
	 * A specialized version of `_.filter` for arrays without support for
	 * iteratee shorthands.
	 *
	 * @private
	 * @param {Array} [array] The array to iterate over.
	 * @param {Function} predicate The function invoked per iteration.
	 * @returns {Array} Returns the new filtered array.
	 */

	function arrayFilter$1(array, predicate) {
	  var index = -1,
	      length = array == null ? 0 : array.length,
	      resIndex = 0,
	      result = [];

	  while (++index < length) {
	    var value = array[index];
	    if (predicate(value, index, array)) {
	      result[resIndex++] = value;
	    }
	  }
	  return result;
	}

	var _arrayFilter = arrayFilter$1;

	/**
	 * This method returns a new empty array.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.13.0
	 * @category Util
	 * @returns {Array} Returns the new empty array.
	 * @example
	 *
	 * var arrays = _.times(2, _.stubArray);
	 *
	 * console.log(arrays);
	 * // => [[], []]
	 *
	 * console.log(arrays[0] === arrays[1]);
	 * // => false
	 */

	function stubArray$1() {
	  return [];
	}

	var stubArray_1 = stubArray$1;

	var arrayFilter = _arrayFilter,
	    stubArray = stubArray_1;

	/** Used for built-in method references. */
	var objectProto$2 = Object.prototype;

	/** Built-in value references. */
	var propertyIsEnumerable = objectProto$2.propertyIsEnumerable;

	/* Built-in method references for those with the same name as other `lodash` methods. */
	var nativeGetSymbols = Object.getOwnPropertySymbols;

	/**
	 * Creates an array of the own enumerable symbols of `object`.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @returns {Array} Returns the array of symbols.
	 */
	var getSymbols$1 = !nativeGetSymbols ? stubArray : function(object) {
	  if (object == null) {
	    return [];
	  }
	  object = Object(object);
	  return arrayFilter(nativeGetSymbols(object), function(symbol) {
	    return propertyIsEnumerable.call(object, symbol);
	  });
	};

	var _getSymbols = getSymbols$1;

	var baseGetAllKeys = _baseGetAllKeys,
	    getSymbols = _getSymbols,
	    keys$1 = keys_1;

	/**
	 * Creates an array of own enumerable property names and symbols of `object`.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @returns {Array} Returns the array of property names and symbols.
	 */
	function getAllKeys$1(object) {
	  return baseGetAllKeys(object, keys$1, getSymbols);
	}

	var _getAllKeys = getAllKeys$1;

	var getAllKeys = _getAllKeys;

	/** Used to compose bitmasks for value comparisons. */
	var COMPARE_PARTIAL_FLAG$3 = 1;

	/** Used for built-in method references. */
	var objectProto$1 = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty$1 = objectProto$1.hasOwnProperty;

	/**
	 * A specialized version of `baseIsEqualDeep` for objects with support for
	 * partial deep comparisons.
	 *
	 * @private
	 * @param {Object} object The object to compare.
	 * @param {Object} other The other object to compare.
	 * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
	 * @param {Function} customizer The function to customize comparisons.
	 * @param {Function} equalFunc The function to determine equivalents of values.
	 * @param {Object} stack Tracks traversed `object` and `other` objects.
	 * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
	 */
	function equalObjects$1(object, other, bitmask, customizer, equalFunc, stack) {
	  var isPartial = bitmask & COMPARE_PARTIAL_FLAG$3,
	      objProps = getAllKeys(object),
	      objLength = objProps.length,
	      othProps = getAllKeys(other),
	      othLength = othProps.length;

	  if (objLength != othLength && !isPartial) {
	    return false;
	  }
	  var index = objLength;
	  while (index--) {
	    var key = objProps[index];
	    if (!(isPartial ? key in other : hasOwnProperty$1.call(other, key))) {
	      return false;
	    }
	  }
	  // Check that cyclic values are equal.
	  var objStacked = stack.get(object);
	  var othStacked = stack.get(other);
	  if (objStacked && othStacked) {
	    return objStacked == other && othStacked == object;
	  }
	  var result = true;
	  stack.set(object, other);
	  stack.set(other, object);

	  var skipCtor = isPartial;
	  while (++index < objLength) {
	    key = objProps[index];
	    var objValue = object[key],
	        othValue = other[key];

	    if (customizer) {
	      var compared = isPartial
	        ? customizer(othValue, objValue, key, other, object, stack)
	        : customizer(objValue, othValue, key, object, other, stack);
	    }
	    // Recursively compare objects (susceptible to call stack limits).
	    if (!(compared === undefined
	          ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
	          : compared
	        )) {
	      result = false;
	      break;
	    }
	    skipCtor || (skipCtor = key == 'constructor');
	  }
	  if (result && !skipCtor) {
	    var objCtor = object.constructor,
	        othCtor = other.constructor;

	    // Non `Object` object instances with different constructors are not equal.
	    if (objCtor != othCtor &&
	        ('constructor' in object && 'constructor' in other) &&
	        !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
	          typeof othCtor == 'function' && othCtor instanceof othCtor)) {
	      result = false;
	    }
	  }
	  stack['delete'](object);
	  stack['delete'](other);
	  return result;
	}

	var _equalObjects = equalObjects$1;

	var getNative$3 = _getNative,
	    root$3 = _root;

	/* Built-in method references that are verified to be native. */
	var DataView$1 = getNative$3(root$3, 'DataView');

	var _DataView = DataView$1;

	var getNative$2 = _getNative,
	    root$2 = _root;

	/* Built-in method references that are verified to be native. */
	var Promise$2 = getNative$2(root$2, 'Promise');

	var _Promise = Promise$2;

	var getNative$1 = _getNative,
	    root$1 = _root;

	/* Built-in method references that are verified to be native. */
	var Set$1 = getNative$1(root$1, 'Set');

	var _Set = Set$1;

	var getNative = _getNative,
	    root = _root;

	/* Built-in method references that are verified to be native. */
	var WeakMap$1 = getNative(root, 'WeakMap');

	var _WeakMap = WeakMap$1;

	var DataView = _DataView,
	    Map = _Map,
	    Promise$1 = _Promise,
	    Set = _Set,
	    WeakMap = _WeakMap,
	    baseGetTag$1 = _baseGetTag,
	    toSource = _toSource;

	/** `Object#toString` result references. */
	var mapTag = '[object Map]',
	    objectTag$1 = '[object Object]',
	    promiseTag = '[object Promise]',
	    setTag = '[object Set]',
	    weakMapTag = '[object WeakMap]';

	var dataViewTag = '[object DataView]';

	/** Used to detect maps, sets, and weakmaps. */
	var dataViewCtorString = toSource(DataView),
	    mapCtorString = toSource(Map),
	    promiseCtorString = toSource(Promise$1),
	    setCtorString = toSource(Set),
	    weakMapCtorString = toSource(WeakMap);

	/**
	 * Gets the `toStringTag` of `value`.
	 *
	 * @private
	 * @param {*} value The value to query.
	 * @returns {string} Returns the `toStringTag`.
	 */
	var getTag$1 = baseGetTag$1;

	// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
	if ((DataView && getTag$1(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
	    (Map && getTag$1(new Map) != mapTag) ||
	    (Promise$1 && getTag$1(Promise$1.resolve()) != promiseTag) ||
	    (Set && getTag$1(new Set) != setTag) ||
	    (WeakMap && getTag$1(new WeakMap) != weakMapTag)) {
	  getTag$1 = function(value) {
	    var result = baseGetTag$1(value),
	        Ctor = result == objectTag$1 ? value.constructor : undefined,
	        ctorString = Ctor ? toSource(Ctor) : '';

	    if (ctorString) {
	      switch (ctorString) {
	        case dataViewCtorString: return dataViewTag;
	        case mapCtorString: return mapTag;
	        case promiseCtorString: return promiseTag;
	        case setCtorString: return setTag;
	        case weakMapCtorString: return weakMapTag;
	      }
	    }
	    return result;
	  };
	}

	var _getTag = getTag$1;

	var Stack$1 = _Stack,
	    equalArrays = _equalArrays,
	    equalByTag = _equalByTag,
	    equalObjects = _equalObjects,
	    getTag = _getTag,
	    isArray$5 = isArray_1,
	    isBuffer = isBuffer$2.exports,
	    isTypedArray = isTypedArray_1;

	/** Used to compose bitmasks for value comparisons. */
	var COMPARE_PARTIAL_FLAG$2 = 1;

	/** `Object#toString` result references. */
	var argsTag = '[object Arguments]',
	    arrayTag = '[object Array]',
	    objectTag = '[object Object]';

	/** Used for built-in method references. */
	var objectProto = Object.prototype;

	/** Used to check objects for own properties. */
	var hasOwnProperty = objectProto.hasOwnProperty;

	/**
	 * A specialized version of `baseIsEqual` for arrays and objects which performs
	 * deep comparisons and tracks traversed objects enabling objects with circular
	 * references to be compared.
	 *
	 * @private
	 * @param {Object} object The object to compare.
	 * @param {Object} other The other object to compare.
	 * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
	 * @param {Function} customizer The function to customize comparisons.
	 * @param {Function} equalFunc The function to determine equivalents of values.
	 * @param {Object} [stack] Tracks traversed `object` and `other` objects.
	 * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
	 */
	function baseIsEqualDeep$1(object, other, bitmask, customizer, equalFunc, stack) {
	  var objIsArr = isArray$5(object),
	      othIsArr = isArray$5(other),
	      objTag = objIsArr ? arrayTag : getTag(object),
	      othTag = othIsArr ? arrayTag : getTag(other);

	  objTag = objTag == argsTag ? objectTag : objTag;
	  othTag = othTag == argsTag ? objectTag : othTag;

	  var objIsObj = objTag == objectTag,
	      othIsObj = othTag == objectTag,
	      isSameTag = objTag == othTag;

	  if (isSameTag && isBuffer(object)) {
	    if (!isBuffer(other)) {
	      return false;
	    }
	    objIsArr = true;
	    objIsObj = false;
	  }
	  if (isSameTag && !objIsObj) {
	    stack || (stack = new Stack$1);
	    return (objIsArr || isTypedArray(object))
	      ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
	      : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
	  }
	  if (!(bitmask & COMPARE_PARTIAL_FLAG$2)) {
	    var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
	        othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

	    if (objIsWrapped || othIsWrapped) {
	      var objUnwrapped = objIsWrapped ? object.value() : object,
	          othUnwrapped = othIsWrapped ? other.value() : other;

	      stack || (stack = new Stack$1);
	      return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
	    }
	  }
	  if (!isSameTag) {
	    return false;
	  }
	  stack || (stack = new Stack$1);
	  return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
	}

	var _baseIsEqualDeep = baseIsEqualDeep$1;

	var baseIsEqualDeep = _baseIsEqualDeep,
	    isObjectLike$1 = isObjectLike_1;

	/**
	 * The base implementation of `_.isEqual` which supports partial comparisons
	 * and tracks traversed objects.
	 *
	 * @private
	 * @param {*} value The value to compare.
	 * @param {*} other The other value to compare.
	 * @param {boolean} bitmask The bitmask flags.
	 *  1 - Unordered comparison
	 *  2 - Partial comparison
	 * @param {Function} [customizer] The function to customize comparisons.
	 * @param {Object} [stack] Tracks traversed `value` and `other` objects.
	 * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
	 */
	function baseIsEqual$2(value, other, bitmask, customizer, stack) {
	  if (value === other) {
	    return true;
	  }
	  if (value == null || other == null || (!isObjectLike$1(value) && !isObjectLike$1(other))) {
	    return value !== value && other !== other;
	  }
	  return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual$2, stack);
	}

	var _baseIsEqual = baseIsEqual$2;

	var Stack = _Stack,
	    baseIsEqual$1 = _baseIsEqual;

	/** Used to compose bitmasks for value comparisons. */
	var COMPARE_PARTIAL_FLAG$1 = 1,
	    COMPARE_UNORDERED_FLAG$1 = 2;

	/**
	 * The base implementation of `_.isMatch` without support for iteratee shorthands.
	 *
	 * @private
	 * @param {Object} object The object to inspect.
	 * @param {Object} source The object of property values to match.
	 * @param {Array} matchData The property names, values, and compare flags to match.
	 * @param {Function} [customizer] The function to customize comparisons.
	 * @returns {boolean} Returns `true` if `object` is a match, else `false`.
	 */
	function baseIsMatch$1(object, source, matchData, customizer) {
	  var index = matchData.length,
	      length = index,
	      noCustomizer = !customizer;

	  if (object == null) {
	    return !length;
	  }
	  object = Object(object);
	  while (index--) {
	    var data = matchData[index];
	    if ((noCustomizer && data[2])
	          ? data[1] !== object[data[0]]
	          : !(data[0] in object)
	        ) {
	      return false;
	    }
	  }
	  while (++index < length) {
	    data = matchData[index];
	    var key = data[0],
	        objValue = object[key],
	        srcValue = data[1];

	    if (noCustomizer && data[2]) {
	      if (objValue === undefined && !(key in object)) {
	        return false;
	      }
	    } else {
	      var stack = new Stack;
	      if (customizer) {
	        var result = customizer(objValue, srcValue, key, object, source, stack);
	      }
	      if (!(result === undefined
	            ? baseIsEqual$1(srcValue, objValue, COMPARE_PARTIAL_FLAG$1 | COMPARE_UNORDERED_FLAG$1, customizer, stack)
	            : result
	          )) {
	        return false;
	      }
	    }
	  }
	  return true;
	}

	var _baseIsMatch = baseIsMatch$1;

	var isObject = isObject_1;

	/**
	 * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` if suitable for strict
	 *  equality comparisons, else `false`.
	 */
	function isStrictComparable$2(value) {
	  return value === value && !isObject(value);
	}

	var _isStrictComparable = isStrictComparable$2;

	var isStrictComparable$1 = _isStrictComparable,
	    keys = keys_1;

	/**
	 * Gets the property names, values, and compare flags of `object`.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @returns {Array} Returns the match data of `object`.
	 */
	function getMatchData$1(object) {
	  var result = keys(object),
	      length = result.length;

	  while (length--) {
	    var key = result[length],
	        value = object[key];

	    result[length] = [key, value, isStrictComparable$1(value)];
	  }
	  return result;
	}

	var _getMatchData = getMatchData$1;

	/**
	 * A specialized version of `matchesProperty` for source values suitable
	 * for strict equality comparisons, i.e. `===`.
	 *
	 * @private
	 * @param {string} key The key of the property to get.
	 * @param {*} srcValue The value to match.
	 * @returns {Function} Returns the new spec function.
	 */

	function matchesStrictComparable$2(key, srcValue) {
	  return function(object) {
	    if (object == null) {
	      return false;
	    }
	    return object[key] === srcValue &&
	      (srcValue !== undefined || (key in Object(object)));
	  };
	}

	var _matchesStrictComparable = matchesStrictComparable$2;

	var baseIsMatch = _baseIsMatch,
	    getMatchData = _getMatchData,
	    matchesStrictComparable$1 = _matchesStrictComparable;

	/**
	 * The base implementation of `_.matches` which doesn't clone `source`.
	 *
	 * @private
	 * @param {Object} source The object of property values to match.
	 * @returns {Function} Returns the new spec function.
	 */
	function baseMatches$1(source) {
	  var matchData = getMatchData(source);
	  if (matchData.length == 1 && matchData[0][2]) {
	    return matchesStrictComparable$1(matchData[0][0], matchData[0][1]);
	  }
	  return function(object) {
	    return object === source || baseIsMatch(object, source, matchData);
	  };
	}

	var _baseMatches = baseMatches$1;

	var baseGetTag = _baseGetTag,
	    isObjectLike = isObjectLike_1;

	/** `Object#toString` result references. */
	var symbolTag = '[object Symbol]';

	/**
	 * Checks if `value` is classified as a `Symbol` primitive or object.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
	 * @example
	 *
	 * _.isSymbol(Symbol.iterator);
	 * // => true
	 *
	 * _.isSymbol('abc');
	 * // => false
	 */
	function isSymbol$3(value) {
	  return typeof value == 'symbol' ||
	    (isObjectLike(value) && baseGetTag(value) == symbolTag);
	}

	var isSymbol_1 = isSymbol$3;

	var isArray$4 = isArray_1,
	    isSymbol$2 = isSymbol_1;

	/** Used to match property names within property paths. */
	var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
	    reIsPlainProp = /^\w*$/;

	/**
	 * Checks if `value` is a property name and not a property path.
	 *
	 * @private
	 * @param {*} value The value to check.
	 * @param {Object} [object] The object to query keys on.
	 * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
	 */
	function isKey$3(value, object) {
	  if (isArray$4(value)) {
	    return false;
	  }
	  var type = typeof value;
	  if (type == 'number' || type == 'symbol' || type == 'boolean' ||
	      value == null || isSymbol$2(value)) {
	    return true;
	  }
	  return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
	    (object != null && value in Object(object));
	}

	var _isKey = isKey$3;

	var MapCache = _MapCache;

	/** Error message constants. */
	var FUNC_ERROR_TEXT = 'Expected a function';

	/**
	 * Creates a function that memoizes the result of `func`. If `resolver` is
	 * provided, it determines the cache key for storing the result based on the
	 * arguments provided to the memoized function. By default, the first argument
	 * provided to the memoized function is used as the map cache key. The `func`
	 * is invoked with the `this` binding of the memoized function.
	 *
	 * **Note:** The cache is exposed as the `cache` property on the memoized
	 * function. Its creation may be customized by replacing the `_.memoize.Cache`
	 * constructor with one whose instances implement the
	 * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
	 * method interface of `clear`, `delete`, `get`, `has`, and `set`.
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Function
	 * @param {Function} func The function to have its output memoized.
	 * @param {Function} [resolver] The function to resolve the cache key.
	 * @returns {Function} Returns the new memoized function.
	 * @example
	 *
	 * var object = { 'a': 1, 'b': 2 };
	 * var other = { 'c': 3, 'd': 4 };
	 *
	 * var values = _.memoize(_.values);
	 * values(object);
	 * // => [1, 2]
	 *
	 * values(other);
	 * // => [3, 4]
	 *
	 * object.a = 2;
	 * values(object);
	 * // => [1, 2]
	 *
	 * // Modify the result cache.
	 * values.cache.set(object, ['a', 'b']);
	 * values(object);
	 * // => ['a', 'b']
	 *
	 * // Replace `_.memoize.Cache`.
	 * _.memoize.Cache = WeakMap;
	 */
	function memoize$1(func, resolver) {
	  if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
	    throw new TypeError(FUNC_ERROR_TEXT);
	  }
	  var memoized = function() {
	    var args = arguments,
	        key = resolver ? resolver.apply(this, args) : args[0],
	        cache = memoized.cache;

	    if (cache.has(key)) {
	      return cache.get(key);
	    }
	    var result = func.apply(this, args);
	    memoized.cache = cache.set(key, result) || cache;
	    return result;
	  };
	  memoized.cache = new (memoize$1.Cache || MapCache);
	  return memoized;
	}

	// Expose `MapCache`.
	memoize$1.Cache = MapCache;

	var memoize_1 = memoize$1;

	var memoize = memoize_1;

	/** Used as the maximum memoize cache size. */
	var MAX_MEMOIZE_SIZE = 500;

	/**
	 * A specialized version of `_.memoize` which clears the memoized function's
	 * cache when it exceeds `MAX_MEMOIZE_SIZE`.
	 *
	 * @private
	 * @param {Function} func The function to have its output memoized.
	 * @returns {Function} Returns the new memoized function.
	 */
	function memoizeCapped$1(func) {
	  var result = memoize(func, function(key) {
	    if (cache.size === MAX_MEMOIZE_SIZE) {
	      cache.clear();
	    }
	    return key;
	  });

	  var cache = result.cache;
	  return result;
	}

	var _memoizeCapped = memoizeCapped$1;

	var memoizeCapped = _memoizeCapped;

	/** Used to match property names within property paths. */
	var rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;

	/** Used to match backslashes in property paths. */
	var reEscapeChar = /\\(\\)?/g;

	/**
	 * Converts `string` to a property path array.
	 *
	 * @private
	 * @param {string} string The string to convert.
	 * @returns {Array} Returns the property path array.
	 */
	var stringToPath$1 = memoizeCapped(function(string) {
	  var result = [];
	  if (string.charCodeAt(0) === 46 /* . */) {
	    result.push('');
	  }
	  string.replace(rePropName, function(match, number, quote, subString) {
	    result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));
	  });
	  return result;
	});

	var _stringToPath = stringToPath$1;

	/**
	 * A specialized version of `_.map` for arrays without support for iteratee
	 * shorthands.
	 *
	 * @private
	 * @param {Array} [array] The array to iterate over.
	 * @param {Function} iteratee The function invoked per iteration.
	 * @returns {Array} Returns the new mapped array.
	 */

	function arrayMap$1(array, iteratee) {
	  var index = -1,
	      length = array == null ? 0 : array.length,
	      result = Array(length);

	  while (++index < length) {
	    result[index] = iteratee(array[index], index, array);
	  }
	  return result;
	}

	var _arrayMap = arrayMap$1;

	var Symbol$1 = _Symbol,
	    arrayMap = _arrayMap,
	    isArray$3 = isArray_1,
	    isSymbol$1 = isSymbol_1;

	/** Used as references for various `Number` constants. */
	var INFINITY$1 = 1 / 0;

	/** Used to convert symbols to primitives and strings. */
	var symbolProto = Symbol$1 ? Symbol$1.prototype : undefined,
	    symbolToString = symbolProto ? symbolProto.toString : undefined;

	/**
	 * The base implementation of `_.toString` which doesn't convert nullish
	 * values to empty strings.
	 *
	 * @private
	 * @param {*} value The value to process.
	 * @returns {string} Returns the string.
	 */
	function baseToString$1(value) {
	  // Exit early for strings to avoid a performance hit in some environments.
	  if (typeof value == 'string') {
	    return value;
	  }
	  if (isArray$3(value)) {
	    // Recursively convert values (susceptible to call stack limits).
	    return arrayMap(value, baseToString$1) + '';
	  }
	  if (isSymbol$1(value)) {
	    return symbolToString ? symbolToString.call(value) : '';
	  }
	  var result = (value + '');
	  return (result == '0' && (1 / value) == -INFINITY$1) ? '-0' : result;
	}

	var _baseToString = baseToString$1;

	var baseToString = _baseToString;

	/**
	 * Converts `value` to a string. An empty string is returned for `null`
	 * and `undefined` values. The sign of `-0` is preserved.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to convert.
	 * @returns {string} Returns the converted string.
	 * @example
	 *
	 * _.toString(null);
	 * // => ''
	 *
	 * _.toString(-0);
	 * // => '-0'
	 *
	 * _.toString([1, 2, 3]);
	 * // => '1,2,3'
	 */
	function toString$1(value) {
	  return value == null ? '' : baseToString(value);
	}

	var toString_1 = toString$1;

	var isArray$2 = isArray_1,
	    isKey$2 = _isKey,
	    stringToPath = _stringToPath,
	    toString = toString_1;

	/**
	 * Casts `value` to a path array if it's not one.
	 *
	 * @private
	 * @param {*} value The value to inspect.
	 * @param {Object} [object] The object to query keys on.
	 * @returns {Array} Returns the cast property path array.
	 */
	function castPath$2(value, object) {
	  if (isArray$2(value)) {
	    return value;
	  }
	  return isKey$2(value, object) ? [value] : stringToPath(toString(value));
	}

	var _castPath = castPath$2;

	var isSymbol = isSymbol_1;

	/** Used as references for various `Number` constants. */
	var INFINITY = 1 / 0;

	/**
	 * Converts `value` to a string key if it's not a string or symbol.
	 *
	 * @private
	 * @param {*} value The value to inspect.
	 * @returns {string|symbol} Returns the key.
	 */
	function toKey$4(value) {
	  if (typeof value == 'string' || isSymbol(value)) {
	    return value;
	  }
	  var result = (value + '');
	  return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
	}

	var _toKey = toKey$4;

	var castPath$1 = _castPath,
	    toKey$3 = _toKey;

	/**
	 * The base implementation of `_.get` without support for default values.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @param {Array|string} path The path of the property to get.
	 * @returns {*} Returns the resolved value.
	 */
	function baseGet$2(object, path) {
	  path = castPath$1(path, object);

	  var index = 0,
	      length = path.length;

	  while (object != null && index < length) {
	    object = object[toKey$3(path[index++])];
	  }
	  return (index && index == length) ? object : undefined;
	}

	var _baseGet = baseGet$2;

	var baseGet$1 = _baseGet;

	/**
	 * Gets the value at `path` of `object`. If the resolved value is
	 * `undefined`, the `defaultValue` is returned in its place.
	 *
	 * @static
	 * @memberOf _
	 * @since 3.7.0
	 * @category Object
	 * @param {Object} object The object to query.
	 * @param {Array|string} path The path of the property to get.
	 * @param {*} [defaultValue] The value returned for `undefined` resolved values.
	 * @returns {*} Returns the resolved value.
	 * @example
	 *
	 * var object = { 'a': [{ 'b': { 'c': 3 } }] };
	 *
	 * _.get(object, 'a[0].b.c');
	 * // => 3
	 *
	 * _.get(object, ['a', '0', 'b', 'c']);
	 * // => 3
	 *
	 * _.get(object, 'a.b.c', 'default');
	 * // => 'default'
	 */
	function get$1(object, path, defaultValue) {
	  var result = object == null ? undefined : baseGet$1(object, path);
	  return result === undefined ? defaultValue : result;
	}

	var get_1 = get$1;

	/**
	 * The base implementation of `_.hasIn` without support for deep paths.
	 *
	 * @private
	 * @param {Object} [object] The object to query.
	 * @param {Array|string} key The key to check.
	 * @returns {boolean} Returns `true` if `key` exists, else `false`.
	 */

	function baseHasIn$1(object, key) {
	  return object != null && key in Object(object);
	}

	var _baseHasIn = baseHasIn$1;

	var castPath = _castPath,
	    isArguments = isArguments_1,
	    isArray$1 = isArray_1,
	    isIndex = _isIndex,
	    isLength = isLength_1,
	    toKey$2 = _toKey;

	/**
	 * Checks if `path` exists on `object`.
	 *
	 * @private
	 * @param {Object} object The object to query.
	 * @param {Array|string} path The path to check.
	 * @param {Function} hasFunc The function to check properties.
	 * @returns {boolean} Returns `true` if `path` exists, else `false`.
	 */
	function hasPath$1(object, path, hasFunc) {
	  path = castPath(path, object);

	  var index = -1,
	      length = path.length,
	      result = false;

	  while (++index < length) {
	    var key = toKey$2(path[index]);
	    if (!(result = object != null && hasFunc(object, key))) {
	      break;
	    }
	    object = object[key];
	  }
	  if (result || ++index != length) {
	    return result;
	  }
	  length = object == null ? 0 : object.length;
	  return !!length && isLength(length) && isIndex(key, length) &&
	    (isArray$1(object) || isArguments(object));
	}

	var _hasPath = hasPath$1;

	var baseHasIn = _baseHasIn,
	    hasPath = _hasPath;

	/**
	 * Checks if `path` is a direct or inherited property of `object`.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Object
	 * @param {Object} object The object to query.
	 * @param {Array|string} path The path to check.
	 * @returns {boolean} Returns `true` if `path` exists, else `false`.
	 * @example
	 *
	 * var object = _.create({ 'a': _.create({ 'b': 2 }) });
	 *
	 * _.hasIn(object, 'a');
	 * // => true
	 *
	 * _.hasIn(object, 'a.b');
	 * // => true
	 *
	 * _.hasIn(object, ['a', 'b']);
	 * // => true
	 *
	 * _.hasIn(object, 'b');
	 * // => false
	 */
	function hasIn$1(object, path) {
	  return object != null && hasPath(object, path, baseHasIn);
	}

	var hasIn_1 = hasIn$1;

	var baseIsEqual = _baseIsEqual,
	    get = get_1,
	    hasIn = hasIn_1,
	    isKey$1 = _isKey,
	    isStrictComparable = _isStrictComparable,
	    matchesStrictComparable = _matchesStrictComparable,
	    toKey$1 = _toKey;

	/** Used to compose bitmasks for value comparisons. */
	var COMPARE_PARTIAL_FLAG = 1,
	    COMPARE_UNORDERED_FLAG = 2;

	/**
	 * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
	 *
	 * @private
	 * @param {string} path The path of the property to get.
	 * @param {*} srcValue The value to match.
	 * @returns {Function} Returns the new spec function.
	 */
	function baseMatchesProperty$1(path, srcValue) {
	  if (isKey$1(path) && isStrictComparable(srcValue)) {
	    return matchesStrictComparable(toKey$1(path), srcValue);
	  }
	  return function(object) {
	    var objValue = get(object, path);
	    return (objValue === undefined && objValue === srcValue)
	      ? hasIn(object, path)
	      : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
	  };
	}

	var _baseMatchesProperty = baseMatchesProperty$1;

	/**
	 * This method returns the first argument it receives.
	 *
	 * @static
	 * @since 0.1.0
	 * @memberOf _
	 * @category Util
	 * @param {*} value Any value.
	 * @returns {*} Returns `value`.
	 * @example
	 *
	 * var object = { 'a': 1 };
	 *
	 * console.log(_.identity(object) === object);
	 * // => true
	 */

	function identity$1(value) {
	  return value;
	}

	var identity_1 = identity$1;

	/**
	 * The base implementation of `_.property` without support for deep paths.
	 *
	 * @private
	 * @param {string} key The key of the property to get.
	 * @returns {Function} Returns the new accessor function.
	 */

	function baseProperty$1(key) {
	  return function(object) {
	    return object == null ? undefined : object[key];
	  };
	}

	var _baseProperty = baseProperty$1;

	var baseGet = _baseGet;

	/**
	 * A specialized version of `baseProperty` which supports deep paths.
	 *
	 * @private
	 * @param {Array|string} path The path of the property to get.
	 * @returns {Function} Returns the new accessor function.
	 */
	function basePropertyDeep$1(path) {
	  return function(object) {
	    return baseGet(object, path);
	  };
	}

	var _basePropertyDeep = basePropertyDeep$1;

	var baseProperty = _baseProperty,
	    basePropertyDeep = _basePropertyDeep,
	    isKey = _isKey,
	    toKey = _toKey;

	/**
	 * Creates a function that returns the value at `path` of a given object.
	 *
	 * @static
	 * @memberOf _
	 * @since 2.4.0
	 * @category Util
	 * @param {Array|string} path The path of the property to get.
	 * @returns {Function} Returns the new accessor function.
	 * @example
	 *
	 * var objects = [
	 *   { 'a': { 'b': 2 } },
	 *   { 'a': { 'b': 1 } }
	 * ];
	 *
	 * _.map(objects, _.property('a.b'));
	 * // => [2, 1]
	 *
	 * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
	 * // => [1, 2]
	 */
	function property$1(path) {
	  return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
	}

	var property_1 = property$1;

	var baseMatches = _baseMatches,
	    baseMatchesProperty = _baseMatchesProperty,
	    identity = identity_1,
	    isArray = isArray_1,
	    property = property_1;

	/**
	 * The base implementation of `_.iteratee`.
	 *
	 * @private
	 * @param {*} [value=_.identity] The value to convert to an iteratee.
	 * @returns {Function} Returns the iteratee.
	 */
	function baseIteratee$1(value) {
	  // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
	  // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
	  if (typeof value == 'function') {
	    return value;
	  }
	  if (value == null) {
	    return identity;
	  }
	  if (typeof value == 'object') {
	    return isArray(value)
	      ? baseMatchesProperty(value[0], value[1])
	      : baseMatches(value);
	  }
	  return property(value);
	}

	var _baseIteratee = baseIteratee$1;

	var baseAssignValue = _baseAssignValue,
	    baseForOwn = _baseForOwn,
	    baseIteratee = _baseIteratee;

	/**
	 * Creates an object with the same keys as `object` and values generated
	 * by running each own enumerable string keyed property of `object` thru
	 * `iteratee`. The iteratee is invoked with three arguments:
	 * (value, key, object).
	 *
	 * @static
	 * @memberOf _
	 * @since 2.4.0
	 * @category Object
	 * @param {Object} object The object to iterate over.
	 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
	 * @returns {Object} Returns the new mapped object.
	 * @see _.mapKeys
	 * @example
	 *
	 * var users = {
	 *   'fred':    { 'user': 'fred',    'age': 40 },
	 *   'pebbles': { 'user': 'pebbles', 'age': 1 }
	 * };
	 *
	 * _.mapValues(users, function(o) { return o.age; });
	 * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
	 *
	 * // The `_.property` iteratee shorthand.
	 * _.mapValues(users, 'age');
	 * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
	 */
	function mapValues(object, iteratee) {
	  var result = {};
	  iteratee = baseIteratee(iteratee);

	  baseForOwn(object, function(value, key, object) {
	    baseAssignValue(result, key, iteratee(value, key, object));
	  });
	  return result;
	}

	var mapValues_1 = mapValues;

	function visit$1(parent, visitFn, childrenFn) {
	  if (!parent) return;
	  visitFn(parent);
	  var children = childrenFn(parent);

	  if (children) {
	    var count = children.length;

	    for (var i = 0; i < count; i++) {
	      visit$1(children[i], visitFn, childrenFn);
	    }
	  }
	}

	function getNode(tree, key) {
	  var node = null;
	  visit$1(tree, function (d) {
	    if (d.name === key) {
	      node = d;
	    }
	  }, function (d) {
	    return d.children;
	  });
	  return node;
	}

	function map2tree( // eslint-disable-next-line @typescript-eslint/ban-types
	root) {
	  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
	  var tree = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {
	    name: options.key || 'state',
	    children: []
	  };

	  // eslint-disable-next-line @typescript-eslint/ban-types
	  if (!isPlainObject_1(root) && root && !root.toJS) {
	    return {};
	  }

	  var _options$key = options.key,
	      rootNodeKey = _options$key === void 0 ? 'state' : _options$key,
	      _options$pushMethod = options.pushMethod,
	      pushMethod = _options$pushMethod === void 0 ? 'push' : _options$pushMethod;
	  var currentNode = getNode(tree, rootNodeKey);

	  if (currentNode === null) {
	    return {};
	  }

	  mapValues_1( // eslint-disable-next-line @typescript-eslint/ban-types
	  root && root.toJS ? // eslint-disable-next-line @typescript-eslint/ban-types
	  root.toJS() : // eslint-disable-next-line @typescript-eslint/ban-types
	  root, // eslint-disable-next-line @typescript-eslint/ban-types
	  function (maybeImmutable, key) {
	    var value = maybeImmutable && maybeImmutable.toJS ? maybeImmutable.toJS() : maybeImmutable;
	    var newNode = {
	      name: key
	    };

	    if (isArray_1(value)) {
	      newNode.children = [];

	      for (var i = 0; i < value.length; i++) {
	        newNode.children[pushMethod](_defineProperty$1({
	          name: "".concat(key, "[").concat(i, "]")
	        }, isPlainObject_1(value[i]) ? 'object' : 'value', value[i]));
	      }
	    } else if (isPlainObject_1(value)) {
	      newNode.children = [];
	    } else {
	      newNode.value = value;
	    }

	    currentNode.children[pushMethod](newNode);
	    map2tree(value, {
	      key: key,
	      pushMethod: pushMethod
	    }, tree);
	  });
	  return tree;
	}

	var isMergeableObject = function isMergeableObject(value) {
		return isNonNullObject(value)
			&& !isSpecial(value)
	};

	function isNonNullObject(value) {
		return !!value && typeof value === 'object'
	}

	function isSpecial(value) {
		var stringValue = Object.prototype.toString.call(value);

		return stringValue === '[object RegExp]'
			|| stringValue === '[object Date]'
			|| isReactElement(value)
	}

	// see https://github.com/facebook/react/blob/b5ac963fb791d1298e7f396236383bc955f916c1/src/isomorphic/classic/element/ReactElement.js#L21-L25
	var canUseSymbol = typeof Symbol === 'function' && Symbol.for;
	var REACT_ELEMENT_TYPE = canUseSymbol ? Symbol.for('react.element') : 0xeac7;

	function isReactElement(value) {
		return value.$$typeof === REACT_ELEMENT_TYPE
	}

	function emptyTarget(val) {
		return Array.isArray(val) ? [] : {}
	}

	function cloneUnlessOtherwiseSpecified(value, options) {
		return (options.clone !== false && options.isMergeableObject(value))
			? deepmerge(emptyTarget(value), value, options)
			: value
	}

	function defaultArrayMerge(target, source, options) {
		return target.concat(source).map(function(element) {
			return cloneUnlessOtherwiseSpecified(element, options)
		})
	}

	function getMergeFunction(key, options) {
		if (!options.customMerge) {
			return deepmerge
		}
		var customMerge = options.customMerge(key);
		return typeof customMerge === 'function' ? customMerge : deepmerge
	}

	function getEnumerableOwnPropertySymbols(target) {
		return Object.getOwnPropertySymbols
			? Object.getOwnPropertySymbols(target).filter(function(symbol) {
				return target.propertyIsEnumerable(symbol)
			})
			: []
	}

	function getKeys(target) {
		return Object.keys(target).concat(getEnumerableOwnPropertySymbols(target))
	}

	function propertyIsOnObject(object, property) {
		try {
			return property in object
		} catch(_) {
			return false
		}
	}

	// Protects from prototype poisoning and unexpected merging up the prototype chain.
	function propertyIsUnsafe(target, key) {
		return propertyIsOnObject(target, key) // Properties are safe to merge if they don't exist in the target yet,
			&& !(Object.hasOwnProperty.call(target, key) // unsafe if they exist up the prototype chain,
				&& Object.propertyIsEnumerable.call(target, key)) // and also unsafe if they're nonenumerable.
	}

	function mergeObject(target, source, options) {
		var destination = {};
		if (options.isMergeableObject(target)) {
			getKeys(target).forEach(function(key) {
				destination[key] = cloneUnlessOtherwiseSpecified(target[key], options);
			});
		}
		getKeys(source).forEach(function(key) {
			if (propertyIsUnsafe(target, key)) {
				return
			}

			if (propertyIsOnObject(target, key) && options.isMergeableObject(source[key])) {
				destination[key] = getMergeFunction(key, options)(target[key], source[key], options);
			} else {
				destination[key] = cloneUnlessOtherwiseSpecified(source[key], options);
			}
		});
		return destination
	}

	function deepmerge(target, source, options) {
		options = options || {};
		options.arrayMerge = options.arrayMerge || defaultArrayMerge;
		options.isMergeableObject = options.isMergeableObject || isMergeableObject;
		// cloneUnlessOtherwiseSpecified is added to `options` so that custom arrayMerge()
		// implementations can use it. The caller may not replace it.
		options.cloneUnlessOtherwiseSpecified = cloneUnlessOtherwiseSpecified;

		var sourceIsArray = Array.isArray(source);
		var targetIsArray = Array.isArray(target);
		var sourceAndTargetTypesMatch = sourceIsArray === targetIsArray;

		if (!sourceAndTargetTypesMatch) {
			return cloneUnlessOtherwiseSpecified(source, options)
		} else if (sourceIsArray) {
			return options.arrayMerge(target, source, options)
		} else {
			return mergeObject(target, source, options)
		}
	}

	deepmerge.all = function deepmergeAll(array, options) {
		if (!Array.isArray(array)) {
			throw new Error('first argument should be an array')
		}

		return array.reduce(function(prev, next) {
			return deepmerge(prev, next, options)
		}, {})
	};

	var deepmerge_1 = deepmerge;

	var cjs = deepmerge_1;

	var _typeof$1 = {exports: {}};

	(function (module) {
	function _typeof(obj) {
	  "@babel/helpers - typeof";

	  return (module.exports = _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
	    return typeof obj;
	  } : function (obj) {
	    return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
	  }, module.exports.__esModule = true, module.exports["default"] = module.exports), _typeof(obj);
	}

	module.exports = _typeof, module.exports.__esModule = true, module.exports["default"] = module.exports;
	}(_typeof$1));

	var _typeof = /*@__PURE__*/getDefaultExportFromCjs(_typeof$1.exports);

	function sortObject(obj, strict) {
	  if (obj instanceof Array) {
	    var ary;

	    if (strict) {
	      ary = obj.sort();
	    } else {
	      ary = obj;
	    }

	    return ary;
	  }

	  if (obj && _typeof(obj) === 'object') {
	    var tObj = {};
	    Object.keys(obj).sort().forEach(function (key) {
	      return tObj[key] = sortObject(obj[key]);
	    });
	    return tObj;
	  }

	  return obj;
	}

	function sortAndSerialize(obj) {
	  return JSON.stringify(sortObject(obj, true), undefined, 2);
	}

	function toggleChildren(node) {
	  if (node.children) {
	    node._children = node.children;
	    node.children = null;
	  } else if (node._children) {
	    node.children = node._children;
	    node._children = null;
	  }

	  return node;
	}
	function visit(parent, visitFn, childrenFn) {
	  if (!parent) {
	    return;
	  }

	  visitFn(parent);
	  var children = childrenFn(parent);

	  if (children) {
	    var count = children.length;

	    for (var i = 0; i < count; i++) {
	      visit(children[i], visitFn, childrenFn);
	    }
	  }
	}
	function getNodeGroupByDepthCount(rootNode) {
	  var nodeGroupByDepthCount = [1];

	  var traverseFrom = function traverseFrom(node) {
	    var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

	    if (!node.children || node.children.length === 0) {
	      return 0;
	    }

	    if (nodeGroupByDepthCount.length <= depth + 1) {
	      nodeGroupByDepthCount.push(0);
	    }

	    nodeGroupByDepthCount[depth + 1] += node.children.length;
	    node.children.forEach(function (childNode) {
	      traverseFrom(childNode, depth + 1);
	    });
	  };

	  traverseFrom(rootNode);
	  return nodeGroupByDepthCount;
	}
	function getTooltipString(node, i, _ref) {
	  var _ref$indentationSize = _ref.indentationSize,
	      indentationSize = _ref$indentationSize === void 0 ? 4 : _ref$indentationSize;
	  if (!is$1(Object, node)) return '';
	  var spacer = join$1('&nbsp;&nbsp;');
	  var cr2br = replace$1(/\n/g, '<br/>');
	  var spaces2nbsp = replace$1(/\s{2}/g, spacer(new Array(indentationSize)));
	  var json2html = pipe(sortAndSerialize, cr2br, spaces2nbsp);
	  var children = node.children || node._children;
	  if (typeof node.value !== 'undefined') return json2html(node.value);
	  if (typeof node.object !== 'undefined') return json2html(node.object);
	  if (children && children.length) return "childrenCount: ".concat(children.length);
	  return 'empty';
	}

	function _arrayWithHoles(arr) {
	  if (Array.isArray(arr)) return arr;
	}

	function _iterableToArrayLimit(arr, i) {
	  var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"];

	  if (_i == null) return;
	  var _arr = [];
	  var _n = true;
	  var _d = false;

	  var _s, _e;

	  try {
	    for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) {
	      _arr.push(_s.value);

	      if (i && _arr.length === i) break;
	    }
	  } catch (err) {
	    _d = true;
	    _e = err;
	  } finally {
	    try {
	      if (!_n && _i["return"] != null) _i["return"]();
	    } finally {
	      if (_d) throw _e;
	    }
	  }

	  return _arr;
	}

	function _arrayLikeToArray(arr, len) {
	  if (len == null || len > arr.length) len = arr.length;

	  for (var i = 0, arr2 = new Array(len); i < len; i++) {
	    arr2[i] = arr[i];
	  }

	  return arr2;
	}

	function _unsupportedIterableToArray(o, minLen) {
	  if (!o) return;
	  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
	  var n = Object.prototype.toString.call(o).slice(8, -1);
	  if (n === "Object" && o.constructor) n = o.constructor.name;
	  if (n === "Map" || n === "Set") return Array.from(o);
	  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
	}

	function _nonIterableRest() {
	  throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
	}

	function _slicedToArray(arr, i) {
	  return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
	}

	function functor$1(v) {
	  return is$1(Function, v) ? v : function () {
	    return v;
	  };
	}

	function prependClass$1(className) {
	  return mapObjIndexed$1(function (value, key) {
	    if (key === 'class') {
	      var fn = functor$1(value);
	      return function (d, i) {
	        var classNames = fn(d, i);

	        if (classNames !== className) {
	          return join$1(' ', [className, classNames]);
	        }

	        return classNames;
	      };
	    }

	    return value;
	  });
	}

	var utils = {
	  prependClass: prependClass$1,
	  functor: functor$1
	};

	function ownKeys$1(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

	function _objectSpread$1(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys$1(Object(source), !0).forEach(function (key) { _defineProperty$1(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys$1(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
	var prependClass = utils.prependClass,
	    functor = utils.functor;
	var defaultOptions$1 = {
	  left: undefined,
	  top: undefined,
	  offset: {
	    left: 0,
	    top: 0
	  },
	  root: undefined
	};
	function tooltip(d3) {
	  var className = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'tooltip';
	  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

	  var _defaultOptions$optio = _objectSpread$1(_objectSpread$1({}, defaultOptions$1), options),
	      left = _defaultOptions$optio.left,
	      top = _defaultOptions$optio.top,
	      offset = _defaultOptions$optio.offset,
	      root = _defaultOptions$optio.root;

	  var attrs = {
	    class: className
	  };

	  var text = function text(node) {
	    return '';
	  };

	  var styles = {};
	  var el;
	  var anchor = root || d3.select('body');
	  var rootNode = anchor.node();

	  function tip(selection) {
	    selection.on('mouseover.tip', function (node) {
	      var _d3$mouse = d3.mouse(rootNode),
	          _d3$mouse2 = _slicedToArray(_d3$mouse, 2),
	          mouseX = _d3$mouse2[0],
	          mouseY = _d3$mouse2[1];

	      var x = left || mouseX + offset.left,
	          y = top || mouseY - offset.top;
	      anchor.selectAll("div.".concat(className)).remove();
	      el = anchor.append('div').attr(prependClass(className)(attrs)).style(_objectSpread$1({
	        position: 'absolute',
	        'z-index': 1001,
	        left: "".concat(x, "px"),
	        top: "".concat(y, "px")
	      }, styles)).html(function () {
	        return text(node);
	      });
	    });
	    selection.on('mousemove.tip', function (node) {
	      var _d3$mouse3 = d3.mouse(rootNode),
	          _d3$mouse4 = _slicedToArray(_d3$mouse3, 2),
	          mouseX = _d3$mouse4[0],
	          mouseY = _d3$mouse4[1];

	      var x = left || mouseX + offset.left,
	          y = top || mouseY - offset.top;
	      el.style({
	        left: "".concat(x, "px"),
	        top: "".concat(y, "px")
	      }).html(function () {
	        return text(node);
	      });
	    });
	    selection.on('mouseout.tip', function () {
	      return el.remove();
	    });
	  }

	  tip.attr = function setAttr(d) {
	    if (is$1(Object, d)) {
	      attrs = _objectSpread$1(_objectSpread$1({}, attrs), d);
	    }

	    return this;
	  };

	  tip.style = function setStyle(d) {
	    if (is$1(Object, d)) {
	      styles = _objectSpread$1(_objectSpread$1({}, styles), d);
	    }

	    return this;
	  };

	  tip.text = function setText(d) {
	    text = functor(d);
	    return this;
	  };

	  return tip;
	}

	function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

	function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty$2(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
	var defaultOptions = {
	  state: undefined,
	  rootKeyName: 'state',
	  pushMethod: 'push',
	  tree: undefined,
	  id: 'd3svg',
	  style: {
	    node: {
	      colors: {
	        default: '#ccc',
	        collapsed: 'lightsteelblue',
	        parent: 'white'
	      },
	      radius: 7
	    },
	    text: {
	      colors: {
	        default: 'black',
	        hover: 'skyblue'
	      }
	    },
	    link: {
	      stroke: '#000',
	      fill: 'none'
	    }
	  },
	  size: 500,
	  aspectRatio: 1.0,
	  initialZoom: 1,
	  margin: {
	    top: 10,
	    right: 10,
	    bottom: 10,
	    left: 50
	  },
	  isSorted: false,
	  heightBetweenNodesCoeff: 2,
	  widthBetweenNodesCoeff: 1,
	  transitionDuration: 750,
	  blinkDuration: 100,
	  onClickText: function onClickText() {// noop
	  },
	  tooltipOptions: {
	    disabled: false,
	    left: undefined,
	    top: undefined,
	    offset: {
	      left: 0,
	      top: 0
	    },
	    style: undefined
	  }
	};
	function tree (DOMNode) {
	  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

	  var _deepmerge = cjs(defaultOptions, options),
	      id = _deepmerge.id,
	      style = _deepmerge.style,
	      size = _deepmerge.size,
	      aspectRatio = _deepmerge.aspectRatio,
	      initialZoom = _deepmerge.initialZoom,
	      margin = _deepmerge.margin,
	      isSorted = _deepmerge.isSorted,
	      widthBetweenNodesCoeff = _deepmerge.widthBetweenNodesCoeff,
	      heightBetweenNodesCoeff = _deepmerge.heightBetweenNodesCoeff,
	      transitionDuration = _deepmerge.transitionDuration,
	      blinkDuration = _deepmerge.blinkDuration,
	      state = _deepmerge.state,
	      rootKeyName = _deepmerge.rootKeyName,
	      pushMethod = _deepmerge.pushMethod,
	      tree = _deepmerge.tree,
	      tooltipOptions = _deepmerge.tooltipOptions,
	      onClickText = _deepmerge.onClickText;

	  var width = size - margin.left - margin.right;
	  var height = size * aspectRatio - margin.top - margin.bottom;
	  var fullWidth = size;
	  var fullHeight = size * aspectRatio;
	  var attr = {
	    id: id,
	    preserveAspectRatio: 'xMinYMin slice'
	  };

	  if (!style.width) {
	    attr.width = fullWidth;
	  }

	  if (!style.width || !style.height) {
	    attr.viewBox = "0 0 ".concat(fullWidth, " ").concat(fullHeight);
	  }

	  var root = d3.select(DOMNode);
	  var zoom = d3.behavior.zoom().scaleExtent([0.1, 3]).scale(initialZoom);
	  var vis = root.append('svg').attr(attr).style(_objectSpread({
	    cursor: '-webkit-grab'
	  }, style)).call(zoom.on('zoom', function () {
	    var _d3$event = d3.event,
	        translate = _d3$event.translate,
	        scale = _d3$event.scale;
	    vis.attr('transform', "translate(".concat(translate.toString(), ")scale(").concat(scale, ")"));
	  })).append('g').attr({
	    transform: "translate(".concat(margin.left + style.node.radius, ", ").concat(margin.top, ") scale(").concat(initialZoom, ")")
	  });
	  var layout = d3.layout.tree().size([width, height]);
	  var data;

	  if (isSorted) {
	    layout.sort(function (a, b) {
	      return b.name.toLowerCase() < a.name.toLowerCase() ? 1 : -1;
	    });
	  } // previousNodePositionsById stores node x and y
	  // as well as hierarchy (id / parentId);
	  // helps animating transitions


	  var previousNodePositionsById = {
	    root: {
	      id: 'root',
	      parentId: null,
	      x: height / 2,
	      y: 0
	    }
	  }; // traverses a map with node positions by going through the chain
	  // of parent ids; once a parent that matches the given filter is found,
	  // the parent position gets returned

	  function findParentNodePosition(nodePositionsById, nodeId, filter) {
	    var currentPosition = nodePositionsById[nodeId];

	    while (currentPosition) {
	      currentPosition = nodePositionsById[currentPosition.parentId];

	      if (!currentPosition) {
	        return null;
	      }

	      if (!filter || filter(currentPosition)) {
	        return currentPosition;
	      }
	    }
	  }

	  return function renderChart() {
	    var nextState = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : tree || state;
	    data = !tree ? // eslint-disable-next-line @typescript-eslint/ban-types
	    map2tree(nextState, {
	      key: rootKeyName,
	      pushMethod: pushMethod
	    }) : nextState;

	    if (isEmpty$1(data) || !data.name) {
	      data = {
	        name: 'error',
	        message: 'Please provide a state map or a tree structure'
	      };
	    }

	    var nodeIndex = 0;
	    var maxLabelLength = 0; // nodes are assigned with string ids, which reflect their location
	    // within the hierarcy; e.g. "root|branch|subBranch|subBranch[0]|property"
	    // top-level elemnt always has id "root"

	    visit(data, function (node) {
	      maxLabelLength = Math.max(node.name.length, maxLabelLength);
	      node.id = node.id || 'root';
	    }, function (node) {
	      return node.children && node.children.length > 0 ? node.children.map(function (c) {
	        c.id = "".concat(node.id || '', "|").concat(c.name);
	        return c;
	      }) : null;
	    });
	    update();

	    function update() {
	      // path generator for links
	      var diagonal = d3.svg.diagonal().projection(function (d) {
	        return [d.y, d.x];
	      }); // set tree dimensions and spacing between branches and nodes

	      var maxNodeCountByLevel = Math.max.apply(Math, _toConsumableArray(getNodeGroupByDepthCount(data)));
	      layout = layout.size([maxNodeCountByLevel * 25 * heightBetweenNodesCoeff, width]);
	      var nodes = layout.nodes(data);
	      var links = layout.links(nodes);
	      nodes.forEach(function (node) {
	        return node.y = node.depth * (maxLabelLength * 7 * widthBetweenNodesCoeff);
	      });
	      var nodePositions = nodes.map(function (n) {
	        return {
	          parentId: n.parent && n.parent.id,
	          id: n.id,
	          x: n.x,
	          y: n.y
	        };
	      });
	      var nodePositionsById = {};
	      nodePositions.forEach(function (node) {
	        return nodePositionsById[node.id] = node;
	      }); // process the node selection

	      var node = vis.selectAll('g.node').property('__oldData__', function (d) {
	        return d;
	      }).data(nodes, function (d) {
	        return d.id || (d.id = ++nodeIndex);
	      });
	      var nodeEnter = node.enter().append('g').attr({
	        class: 'node',
	        transform: function transform(d) {
	          var position = findParentNodePosition(nodePositionsById, d.id, function (n) {
	            return !!previousNodePositionsById[n.id];
	          });
	          var previousPosition = position && previousNodePositionsById[position.id] || previousNodePositionsById.root;
	          return "translate(".concat(previousPosition.y, ",").concat(previousPosition.x, ")");
	        }
	      }).style({
	        fill: style.text.colors.default,
	        cursor: 'pointer'
	      }).on('mouseover', function mouseover() {
	        d3.select(this).style({
	          fill: style.text.colors.hover
	        });
	      }).on('mouseout', function mouseout() {
	        d3.select(this).style({
	          fill: style.text.colors.default
	        });
	      });

	      if (!tooltipOptions.disabled) {
	        nodeEnter.call(tooltip(d3, 'tooltip', _objectSpread(_objectSpread({}, tooltipOptions), {}, {
	          root: root
	        })).text(function (d, i) {
	          return getTooltipString(d, i, tooltipOptions);
	        }).style(tooltipOptions.style));
	      } // g inside node contains circle and text
	      // this extra wrapper helps run d3 transitions in parallel


	      var nodeEnterInnerGroup = nodeEnter.append('g');
	      nodeEnterInnerGroup.append('circle').attr({
	        class: 'nodeCircle',
	        r: 0
	      }).on('click', function (clickedNode) {
	        if (d3.event.defaultPrevented) return;
	        toggleChildren(clickedNode);
	        update();
	      });
	      nodeEnterInnerGroup.append('text').attr({
	        class: 'nodeText',
	        'text-anchor': 'middle',
	        transform: 'translate(0,0)',
	        dy: '.35em'
	      }).style({
	        'fill-opacity': 0
	      }).text(function (d) {
	        return d.name;
	      }).on('click', onClickText); // update the text to reflect whether node has children or not

	      node.select('text').text(function (d) {
	        return d.name;
	      }); // change the circle fill depending on whether it has children and is collapsed

	      node.select('circle').style({
	        stroke: 'black',
	        'stroke-width': '1.5px',
	        fill: function fill(d) {
	          return d._children ? style.node.colors.collapsed : d.children ? style.node.colors.parent : style.node.colors.default;
	        }
	      }); // transition nodes to their new position

	      var nodeUpdate = node.transition().duration(transitionDuration).attr({
	        transform: function transform(d) {
	          return "translate(".concat(d.y, ",").concat(d.x, ")");
	        }
	      }); // ensure circle radius is correct

	      nodeUpdate.select('circle').attr('r', style.node.radius); // fade the text in and align it

	      nodeUpdate.select('text').style('fill-opacity', 1).attr({
	        transform: function transform(d) {
	          var x = (d.children || d._children ? -1 : 1) * (this.getBBox().width / 2 + style.node.radius + 5);
	          return "translate(".concat(x, ",0)");
	        }
	      }); // blink updated nodes

	      node.filter(function flick(d) {
	        // test whether the relevant properties of d match
	        // the equivalent property of the oldData
	        // also test whether the old data exists,
	        // to catch the entering elements!
	        return this.__oldData__ && d.value !== this.__oldData__.value;
	      }).select('g').style('opacity', '0.3').transition().duration(blinkDuration).style('opacity', '1'); // transition exiting nodes to the parent's new position

	      var nodeExit = node.exit().transition().duration(transitionDuration).attr({
	        transform: function transform(d) {
	          var position = findParentNodePosition(previousNodePositionsById, d.id, function (n) {
	            return !!nodePositionsById[n.id];
	          });
	          var futurePosition = position && nodePositionsById[position.id] || nodePositionsById.root;
	          return "translate(".concat(futurePosition.y, ",").concat(futurePosition.x, ")");
	        }
	      }).remove();
	      nodeExit.select('circle').attr('r', 0);
	      nodeExit.select('text').style('fill-opacity', 0); // update the links

	      var link = vis.selectAll('path.link').data(links, function (d) {
	        return d.target.id;
	      }); // enter any new links at the parent's previous position

	      link.enter().insert('path', 'g').attr({
	        class: 'link',
	        d: function d(_d) {
	          var position = findParentNodePosition(nodePositionsById, _d.target.id, function (n) {
	            return !!previousNodePositionsById[n.id];
	          });
	          var previousPosition = position && previousNodePositionsById[position.id] || previousNodePositionsById.root;
	          return diagonal({
	            source: previousPosition,
	            target: previousPosition
	          });
	        }
	      }).style(style.link); // transition links to their new position

	      link.transition().duration(transitionDuration).attr({
	        d: diagonal
	      }); // transition exiting nodes to the parent's new position

	      link.exit().transition().duration(transitionDuration).attr({
	        d: function d(_d2) {
	          var position = findParentNodePosition(previousNodePositionsById, _d2.target.id, function (n) {
	            return !!nodePositionsById[n.id];
	          });
	          var futurePosition = position && nodePositionsById[position.id] || nodePositionsById.root;
	          return diagonal({
	            source: futurePosition,
	            target: futurePosition
	          });
	        }
	      }).remove(); // delete the old data once it's no longer needed

	      node.property('__oldData__', null); // stash the old positions for transition

	      previousNodePositionsById = nodePositionsById;
	    }
	  };
	}

	exports.tree = tree;

	Object.defineProperty(exports, '__esModule', { value: true });

}));