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@flourish/controls/controls.js

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1(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.controls = {}));
5}(this, (function (exports) { 'use strict';
6
var xhtml$1 = "http://www.w3.org/1999/xhtml";
8
var namespaces$1 = {
  svg: "http://www.w3.org/2000/svg",
  xhtml: xhtml$1,
  xlink: "http://www.w3.org/1999/xlink",
  xml: "http://www.w3.org/XML/1998/namespace",
  xmlns: "http://www.w3.org/2000/xmlns/"
};
16
function namespace$1(name) {
  var prefix = name += "", i = prefix.indexOf(":");
  if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
  return namespaces$1.hasOwnProperty(prefix) ? {space: namespaces$1[prefix], local: name} : name;
}
22
function creatorInherit$1(name) {
  return function() {
    var document = this.ownerDocument,
        uri = this.namespaceURI;
    return uri === xhtml$1 && document.documentElement.namespaceURI === xhtml$1
        ? document.createElement(name)
        : document.createElementNS(uri, name);
  };
}
32
function creatorFixed$1(fullname) {
  return function() {
    return this.ownerDocument.createElementNS(fullname.space, fullname.local);
  };
}
38
function creator$1(name) {
  var fullname = namespace$1(name);
  return (fullname.local
      ? creatorFixed$1
      : creatorInherit$1)(fullname);
}
45
function none$1() {}
47
function selector$1(selector) {
  return selector == null ? none$1 : function() {
    return this.querySelector(selector);
  };
}
53
function selection_select$1(select) {
  if (typeof select !== "function") select = selector$1(select);
56
  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
      if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
        if ("__data__" in node) subnode.__data__ = node.__data__;
        subgroup[i] = subnode;
      }
    }
  }
65
  return new Selection$1(subgroups, this._parents);
}
68
function empty$1() {
  return [];
}
72
function selectorAll$1(selector) {
  return selector == null ? empty$1 : function() {
    return this.querySelectorAll(selector);
  };
}
78
function selection_selectAll$1(select) {
  if (typeof select !== "function") select = selectorAll$1(select);
81
  for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
      if (node = group[i]) {
        subgroups.push(select.call(node, node.__data__, i, group));
        parents.push(node);
      }
    }
  }
90
  return new Selection$1(subgroups, parents);
}
93
function matcher$1(selector) {
  return function() {
    return this.matches(selector);
  };
}
99
function selection_filter$1(match) {
  if (typeof match !== "function") match = matcher$1(match);
102
  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
      if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
        subgroup.push(node);
      }
    }
  }
110
  return new Selection$1(subgroups, this._parents);
}
113
function sparse$1(update) {
  return new Array(update.length);
}
117
function selection_enter$1() {
  return new Selection$1(this._enter || this._groups.map(sparse$1), this._parents);
}
121
function EnterNode$1(parent, datum) {
  this.ownerDocument = parent.ownerDocument;
  this.namespaceURI = parent.namespaceURI;
  this._next = null;
  this._parent = parent;
  this.__data__ = datum;
}
129
EnterNode$1.prototype = {
  constructor: EnterNode$1,
  appendChild: function(child) { return this._parent.insertBefore(child, this._next); },
  insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },
  querySelector: function(selector) { return this._parent.querySelector(selector); },
  querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }
};
137
function constant$3(x) {
  return function() {
    return x;
  };
}
143
var keyPrefix$1 = "$"; // Protect against keys like “__proto__”.
145
function bindIndex$1(parent, group, enter, update, exit, data) {
  var i = 0,
      node,
      groupLength = group.length,
      dataLength = data.length;
151
  // Put any non-null nodes that fit into update.
  // Put any null nodes into enter.
  // Put any remaining data into enter.
  for (; i < dataLength; ++i) {
    if (node = group[i]) {
      node.__data__ = data[i];
      update[i] = node;
    } else {
      enter[i] = new EnterNode$1(parent, data[i]);
    }
  }
163
  // Put any non-null nodes that don’t fit into exit.
  for (; i < groupLength; ++i) {
    if (node = group[i]) {
      exit[i] = node;
    }
  }
}
171
function bindKey$1(parent, group, enter, update, exit, data, key) {
  var i,
      node,
      nodeByKeyValue = {},
      groupLength = group.length,
      dataLength = data.length,
      keyValues = new Array(groupLength),
      keyValue;
180
  // Compute the key for each node.
  // If multiple nodes have the same key, the duplicates are added to exit.
  for (i = 0; i < groupLength; ++i) {
    if (node = group[i]) {
      keyValues[i] = keyValue = keyPrefix$1 + key.call(node, node.__data__, i, group);
      if (keyValue in nodeByKeyValue) {
        exit[i] = node;
      } else {
        nodeByKeyValue[keyValue] = node;
      }
    }
  }
193
  // Compute the key for each datum.
  // If there a node associated with this key, join and add it to update.
  // If there is not (or the key is a duplicate), add it to enter.
  for (i = 0; i < dataLength; ++i) {
    keyValue = keyPrefix$1 + key.call(parent, data[i], i, data);
    if (node = nodeByKeyValue[keyValue]) {
      update[i] = node;
      node.__data__ = data[i];
      nodeByKeyValue[keyValue] = null;
    } else {
      enter[i] = new EnterNode$1(parent, data[i]);
    }
  }
207
  // Add any remaining nodes that were not bound to data to exit.
  for (i = 0; i < groupLength; ++i) {
    if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) {
      exit[i] = node;
    }
  }
}
215
function selection_data$1(value, key) {
  if (!value) {
    data = new Array(this.size()), j = -1;
    this.each(function(d) { data[++j] = d; });
    return data;
  }
222
  var bind = key ? bindKey$1 : bindIndex$1,
      parents = this._parents,
      groups = this._groups;
226
  if (typeof value !== "function") value = constant$3(value);
228
  for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {
    var parent = parents[j],
        group = groups[j],
        groupLength = group.length,
        data = value.call(parent, parent && parent.__data__, j, parents),
        dataLength = data.length,
        enterGroup = enter[j] = new Array(dataLength),
        updateGroup = update[j] = new Array(dataLength),
        exitGroup = exit[j] = new Array(groupLength);
238
    bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);
240
    // Now connect the enter nodes to their following update node, such that
    // appendChild can insert the materialized enter node before this node,
    // rather than at the end of the parent node.
    for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {
      if (previous = enterGroup[i0]) {
        if (i0 >= i1) i1 = i0 + 1;
        while (!(next = updateGroup[i1]) && ++i1 < dataLength);
        previous._next = next || null;
      }
    }
  }
252
  update = new Selection$1(update, parents);
  update._enter = enter;
  update._exit = exit;
  return update;
}
258
function selection_exit$1() {
  return new Selection$1(this._exit || this._groups.map(sparse$1), this._parents);
}
262
function selection_join$1(onenter, onupdate, onexit) {
  var enter = this.enter(), update = this, exit = this.exit();
  enter = typeof onenter === "function" ? onenter(enter) : enter.append(onenter + "");
  if (onupdate != null) update = onupdate(update);
  if (onexit == null) exit.remove(); else onexit(exit);
  return enter && update ? enter.merge(update).order() : update;
}
270
function selection_merge$1(selection) {
272
  for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
    for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
      if (node = group0[i] || group1[i]) {
        merge[i] = node;
      }
    }
  }
280
  for (; j < m0; ++j) {
    merges[j] = groups0[j];
  }
284
  return new Selection$1(merges, this._parents);
}
287
function selection_order$1() {
289
  for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {
    for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
      if (node = group[i]) {
        if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next);
        next = node;
      }
    }
  }
298
  return this;
}
301
function selection_sort$1(compare) {
  if (!compare) compare = ascending$3;
304
  function compareNode(a, b) {
    return a && b ? compare(a.__data__, b.__data__) : !a - !b;
  }
308
  for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {
      if (node = group[i]) {
        sortgroup[i] = node;
      }
    }
    sortgroup.sort(compareNode);
  }
317
  return new Selection$1(sortgroups, this._parents).order();
}
320
function ascending$3(a, b) {
  return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
324
function selection_call$1() {
  var callback = arguments[0];
  arguments[0] = this;
  callback.apply(null, arguments);
  return this;
}
331
function selection_nodes$1() {
  var nodes = new Array(this.size()), i = -1;
  this.each(function() { nodes[++i] = this; });
  return nodes;
}
337
function selection_node$1() {
339
  for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
    for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {
      var node = group[i];
      if (node) return node;
    }
  }
346
  return null;
}
349
function selection_size$1() {
  var size = 0;
  this.each(function() { ++size; });
  return size;
}
355
function selection_empty$1() {
  return !this.node();
}
359
function selection_each$1(callback) {
361
  for (var groups = this._groups, 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.call(node, node.__data__, i, group);
    }
  }
367
  return this;
}
370
function attrRemove$1(name) {
  return function() {
    this.removeAttribute(name);
  };
}
376
function attrRemoveNS$1(fullname) {
  return function() {
    this.removeAttributeNS(fullname.space, fullname.local);
  };
}
382
function attrConstant$1(name, value) {
  return function() {
    this.setAttribute(name, value);
  };
}
388
function attrConstantNS$1(fullname, value) {
  return function() {
    this.setAttributeNS(fullname.space, fullname.local, value);
  };
}
394
function attrFunction$1(name, value) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) this.removeAttribute(name);
    else this.setAttribute(name, v);
  };
}
402
function attrFunctionNS$1(fullname, value) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) this.removeAttributeNS(fullname.space, fullname.local);
    else this.setAttributeNS(fullname.space, fullname.local, v);
  };
}
410
function selection_attr$1(name, value) {
  var fullname = namespace$1(name);
413
  if (arguments.length < 2) {
    var node = this.node();
    return fullname.local
        ? node.getAttributeNS(fullname.space, fullname.local)
        : node.getAttribute(fullname);
  }
420
  return this.each((value == null
      ? (fullname.local ? attrRemoveNS$1 : attrRemove$1) : (typeof value === "function"
      ? (fullname.local ? attrFunctionNS$1 : attrFunction$1)
      : (fullname.local ? attrConstantNS$1 : attrConstant$1)))(fullname, value));
}
426
function defaultView$1(node) {
  return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node
      || (node.document && node) // node is a Window
      || node.defaultView; // node is a Document
}
432
function styleRemove$1(name) {
  return function() {
    this.style.removeProperty(name);
  };
}
438
function styleConstant$1(name, value, priority) {
  return function() {
    this.style.setProperty(name, value, priority);
  };
}
444
function styleFunction$1(name, value, priority) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) this.style.removeProperty(name);
    else this.style.setProperty(name, v, priority);
  };
}
452
function selection_style$1(name, value, priority) {
  return arguments.length > 1
      ? this.each((value == null
            ? styleRemove$1 : typeof value === "function"
            ? styleFunction$1
            : styleConstant$1)(name, value, priority == null ? "" : priority))
      : styleValue$1(this.node(), name);
}
461
function styleValue$1(node, name) {
  return node.style.getPropertyValue(name)
      || defaultView$1(node).getComputedStyle(node, null).getPropertyValue(name);
}
466
function propertyRemove$1(name) {
  return function() {
    delete this[name];
  };
}
472
function propertyConstant$1(name, value) {
  return function() {
    this[name] = value;
  };
}
478
function propertyFunction$1(name, value) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) delete this[name];
    else this[name] = v;
  };
}
486
function selection_property$1(name, value) {
  return arguments.length > 1
      ? this.each((value == null
          ? propertyRemove$1 : typeof value === "function"
          ? propertyFunction$1
          : propertyConstant$1)(name, value))
      : this.node()[name];
}
495
function classArray$1(string) {
  return string.trim().split(/^|\s+/);
}
499
function classList$1(node) {
  return node.classList || new ClassList$1(node);
}
503
function ClassList$1(node) {
  this._node = node;
  this._names = classArray$1(node.getAttribute("class") || "");
}
508
ClassList$1.prototype = {
  add: function(name) {
    var i = this._names.indexOf(name);
    if (i < 0) {
      this._names.push(name);
      this._node.setAttribute("class", this._names.join(" "));
    }
  },
  remove: function(name) {
    var i = this._names.indexOf(name);
    if (i >= 0) {
      this._names.splice(i, 1);
      this._node.setAttribute("class", this._names.join(" "));
    }
  },
  contains: function(name) {
    return this._names.indexOf(name) >= 0;
  }
};
528
function classedAdd$1(node, names) {
  var list = classList$1(node), i = -1, n = names.length;
  while (++i < n) list.add(names[i]);
}
533
function classedRemove$1(node, names) {
  var list = classList$1(node), i = -1, n = names.length;
  while (++i < n) list.remove(names[i]);
}
538
function classedTrue$1(names) {
  return function() {
    classedAdd$1(this, names);
  };
}
544
function classedFalse$1(names) {
  return function() {
    classedRemove$1(this, names);
  };
}
550
function classedFunction$1(names, value) {
  return function() {
    (value.apply(this, arguments) ? classedAdd$1 : classedRemove$1)(this, names);
  };
}
556
function selection_classed$1(name, value) {
  var names = classArray$1(name + "");
559
  if (arguments.length < 2) {
    var list = classList$1(this.node()), i = -1, n = names.length;
    while (++i < n) if (!list.contains(names[i])) return false;
    return true;
  }
565
  return this.each((typeof value === "function"
      ? classedFunction$1 : value
      ? classedTrue$1
      : classedFalse$1)(names, value));
}
571
function textRemove$1() {
  this.textContent = "";
}
575
function textConstant$1(value) {
  return function() {
    this.textContent = value;
  };
}
581
function textFunction$1(value) {
  return function() {
    var v = value.apply(this, arguments);
    this.textContent = v == null ? "" : v;
  };
}
588
function selection_text$1(value) {
  return arguments.length
      ? this.each(value == null
          ? textRemove$1 : (typeof value === "function"
          ? textFunction$1
          : textConstant$1)(value))
      : this.node().textContent;
}
597
function htmlRemove$1() {
  this.innerHTML = "";
}
601
function htmlConstant$1(value) {
  return function() {
    this.innerHTML = value;
  };
}
607
function htmlFunction$1(value) {
  return function() {
    var v = value.apply(this, arguments);
    this.innerHTML = v == null ? "" : v;
  };
}
614
function selection_html$1(value) {
  return arguments.length
      ? this.each(value == null
          ? htmlRemove$1 : (typeof value === "function"
          ? htmlFunction$1
          : htmlConstant$1)(value))
      : this.node().innerHTML;
}
623
function raise$1() {
  if (this.nextSibling) this.parentNode.appendChild(this);
}
627
function selection_raise$1() {
  return this.each(raise$1);
}
631
function lower$1() {
  if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);
}
635
function selection_lower$1() {
  return this.each(lower$1);
}
639
function selection_append$1(name) {
  var create = typeof name === "function" ? name : creator$1(name);
  return this.select(function() {
    return this.appendChild(create.apply(this, arguments));
  });
}
646
function constantNull$1() {
  return null;
}
650
function selection_insert$1(name, before) {
  var create = typeof name === "function" ? name : creator$1(name),
      select = before == null ? constantNull$1 : typeof before === "function" ? before : selector$1(before);
  return this.select(function() {
    return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);
  });
}
658
function remove$1() {
  var parent = this.parentNode;
  if (parent) parent.removeChild(this);
}
663
function selection_remove$1() {
  return this.each(remove$1);
}
667
function selection_cloneShallow$1() {
  var clone = this.cloneNode(false), parent = this.parentNode;
  return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
672
function selection_cloneDeep$1() {
  var clone = this.cloneNode(true), parent = this.parentNode;
  return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
677
function selection_clone$1(deep) {
  return this.select(deep ? selection_cloneDeep$1 : selection_cloneShallow$1);
}
681
function selection_datum$1(value) {
  return arguments.length
      ? this.property("__data__", value)
      : this.node().__data__;
}
687
var filterEvents$1 = {};
689
var event$1 = null;
691
if (typeof document !== "undefined") {
  var element$1 = document.documentElement;
  if (!("onmouseenter" in element$1)) {
    filterEvents$1 = {mouseenter: "mouseover", mouseleave: "mouseout"};
  }
}
698
function filterContextListener$1(listener, index, group) {
  listener = contextListener$1(listener, index, group);
  return function(event) {
    var related = event.relatedTarget;
    if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) {
      listener.call(this, event);
    }
  };
}
708
function contextListener$1(listener, index, group) {
  return function(event1) {
    var event0 = event$1; // Events can be reentrant (e.g., focus).
    event$1 = event1;
    try {
      listener.call(this, this.__data__, index, group);
    } finally {
      event$1 = event0;
    }
  };
}
720
function parseTypenames$1(typenames) {
  return typenames.trim().split(/^|\s+/).map(function(t) {
    var name = "", i = t.indexOf(".");
    if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
    return {type: t, name: name};
  });
}
728
function onRemove$1(typename) {
  return function() {
    var on = this.__on;
    if (!on) return;
    for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {
      if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {
        this.removeEventListener(o.type, o.listener, o.capture);
      } else {
        on[++i] = o;
      }
    }
    if (++i) on.length = i;
    else delete this.__on;
  };
}
744
function onAdd$1(typename, value, capture) {
  var wrap = filterEvents$1.hasOwnProperty(typename.type) ? filterContextListener$1 : contextListener$1;
  return function(d, i, group) {
    var on = this.__on, o, listener = wrap(value, i, group);
    if (on) for (var j = 0, m = on.length; j < m; ++j) {
      if ((o = on[j]).type === typename.type && o.name === typename.name) {
        this.removeEventListener(o.type, o.listener, o.capture);
        this.addEventListener(o.type, o.listener = listener, o.capture = capture);
        o.value = value;
        return;
      }
    }
    this.addEventListener(typename.type, listener, capture);
    o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture};
    if (!on) this.__on = [o];
    else on.push(o);
  };
}
763
function selection_on$1(typename, value, capture) {
  var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t;
766
  if (arguments.length < 2) {
    var on = this.node().__on;
    if (on) for (var j = 0, m = on.length, o; j < m; ++j) {
      for (i = 0, o = on[j]; i < n; ++i) {
        if ((t = typenames[i]).type === o.type && t.name === o.name) {
          return o.value;
        }
      }
    }
    return;
  }
778
  on = value ? onAdd$1 : onRemove$1;
  if (capture == null) capture = false;
  for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));
  return this;
}
784
function dispatchEvent$1(node, type, params) {
  var window = defaultView$1(node),
      event = window.CustomEvent;
788
  if (typeof event === "function") {
    event = new event(type, params);
  } else {
    event = window.document.createEvent("Event");
    if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;
    else event.initEvent(type, false, false);
  }
796
  node.dispatchEvent(event);
}
799
function dispatchConstant$1(type, params) {
  return function() {
    return dispatchEvent$1(this, type, params);
  };
}
805
function dispatchFunction$1(type, params) {
  return function() {
    return dispatchEvent$1(this, type, params.apply(this, arguments));
  };
}
811
function selection_dispatch$1(type, params) {
  return this.each((typeof params === "function"
      ? dispatchFunction$1
      : dispatchConstant$1)(type, params));
}
817
var root$1 = [null];
819
function Selection$1(groups, parents) {
  this._groups = groups;
  this._parents = parents;
}
824
Selection$1.prototype = {
  constructor: Selection$1,
  select: selection_select$1,
  selectAll: selection_selectAll$1,
  filter: selection_filter$1,
  data: selection_data$1,
  enter: selection_enter$1,
  exit: selection_exit$1,
  join: selection_join$1,
  merge: selection_merge$1,
  order: selection_order$1,
  sort: selection_sort$1,
  call: selection_call$1,
  nodes: selection_nodes$1,
  node: selection_node$1,
  size: selection_size$1,
  empty: selection_empty$1,
  each: selection_each$1,
  attr: selection_attr$1,
  style: selection_style$1,
  property: selection_property$1,
  classed: selection_classed$1,
  text: selection_text$1,
  html: selection_html$1,
  raise: selection_raise$1,
  lower: selection_lower$1,
  append: selection_append$1,
  insert: selection_insert$1,
  remove: selection_remove$1,
  clone: selection_clone$1,
  datum: selection_datum$1,
  on: selection_on$1,
  dispatch: selection_dispatch$1
};
859
function select(selector) {
  return typeof selector === "string"
      ? new Selection$1([[document.querySelector(selector)]], [document.documentElement])
      : new Selection$1([[selector]], root$1);
}
865
function ascending$2(a, b) {
	return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
869
function sortArray(uarr, sort, parser, formatter) {
	var sarr = uarr.map(function(d, i) {
		var parsed_value = parser(d);
		return	{
			value: d,
			options_index: i,
			parsed: parsed_value,
			display: formatter(d)
		};
	});
880
	if (!sort) return sarr;
	return sarr.sort(function(a, b) { return ascending$2(a.parsed, b.parsed); });
}
884
function Stylesheet() {
	this.declarations = [];
	return this;
}
889
Stylesheet.prototype.select = function(selector) {
	if (!selector) return this;
	var declaration = new Declaration(selector, this);
	declaration.parent = this;
	this.addDeclaration(declaration);
895
	return declaration;
};
898
Stylesheet.prototype.addDeclaration = function(declaration) {
	this.declarations.push(declaration);
	return this;
};
903
Stylesheet.prototype.print = function() {
	var text = "";
	this.declarations.forEach(function(declaration) {
		text += declaration.selector + " {\n";
		declaration.styles.forEach(function(style) {
			text += "\t" + style[0] + ": " + style[1] + ";\n";
		});
		text += "}\n\n";
	});
	return text;
};
915
Stylesheet.prototype.clear = function() {
	this.declarations = [];
	return this;
};
920
function Declaration(selector) {
	this.selector = selector;
	this.styles = [];
	return this;
}
926
Declaration.prototype.style = function(property, _value) {
	var value = typeof value_ == "function" ? _value() : _value;
	if (value !== "" && value !== null && value !== undefined) this.styles.push([property, value]);
	return this;
};
932
Declaration.prototype.select = function(selector) {
	return this.parent.select(this.selector + " " + selector);
};
936
function createCssString() {
	var s = new Stylesheet();
939
	s.select(".fl-controls-container")
		.style("display", "inline-block")
		.style("line-height", "1em");
943
	s.select(".fl-controls-title")
		.style("display", "inline-block")
		.style("margin", "0px 0.5em 0px 0px");
947
	s.select(".fl-controls-container, .fl-controls-container *")
		.style("box-sizing", "border-box");
950
	s.select(".slider-holder")
		.style("margin-bottom", "20px");
953
	s.select(".fl-controls-slider, .slider-play")
		.style("pointer-events", "all")
		.style("display", "inline-block")
		.style("vertical-align", "middle");
958
	s.select(".slider-play svg")
		.style("height", "100%")
		.style("width", "100%")
		.style("display", "block")
		.style("cursor", " pointer", "");
964
	s.select(".fl-controls-slider svg")
		.style("display", "block");
967
	s.select(".slider-play:hover")
		.style("opacity", "0.6");
970
	s.select(".fl-control-slider")
		.style("width", "100%")
		.style("bottom", "0")
		.style("align-items", "center");
975
	s.select(".fl-control")
		.style("position", "relative");
978
	s.select(".fl-control.hidden")
		.style("display", "none");
981
	s.select(".fl-control .button")
		.style("display", "inline-flex")
		.style("align-items", "center")
		.style("background", "#eee")
		.style("padding", "0 0.5em")
		.style("margin-right", "0.25em")
		.style("margin-bottom", "0.25em")
		.style("line-height", "1em")
		.style("box-sizing", "border-box");
991
	s.select(".fl-control.grouped:not(.hidden)")
		.style("display", "inline-table")
		.style("table-layout", "fixed")
		.select(".button")
		.style("display", "table-cell")
		.style("vertical-align", "middle")
		.style("margin", "0")
		.style("text-align", "center");
1000
	s.select(".fl-control .button.selected")
		.style("background", "#ddd");
1003
	s.select(".fl-control-dropdown")
		.style("line-height", "1em")
		.style("position", "relative");
1007
	s.select(".fl-control-dropdown::after")
		.style("display", "block")
		.style("content", "''")
		.style("width", "10px")
		.style("height", "10px")
		.style("background", "transparent")
		.style("position", "absolute")
		.style("right", "5px")
		.style("top", "50%")
		.style("pointer-events", "none")
		.style("transform", "translateY(calc(-50% + 3px))")
		.style("border-left", "5px solid transparent")
		.style("border-right", "5px solid transparent")
		.style("border-top", "5px solid")
		.style("box-sizing", "border-box");
1023
	s.select(".fl-control-dropdown select")
		.style("-webkit-appearance", "none")
		.style("-webkit-border-radius", "0px")
		.style("width", "100%");
1028
	return s.print();
}
1031
var css_injected = false;
1033
function injectCSS() {
	if (css_injected || typeof document === "undefined") return;
1036
	var css_string = createCssString();
1038
	var head = document.head || document.getElementsByTagName("head")[0];
	var style = document.createElement("style");
	style.type = "text/css";
	style.className = "flourish-controls";
	head.appendChild(style);
	if (style.styleSheet) {
		style.styleSheet.cssText = css_string;
	}
	else {
		style.appendChild(document.createTextNode(css_string));
	}
	css_injected = true;
}
1052
function define(constructor, factory, prototype) {
  constructor.prototype = factory.prototype = prototype;
  prototype.constructor = constructor;
}
1057
function extend(parent, definition) {
  var prototype = Object.create(parent.prototype);
  for (var key in definition) prototype[key] = definition[key];
  return prototype;
}
1063
function Color() {}
1065
var darker = 0.7;
var brighter = 1 / darker;
1068
var reI = "\\s*([+-]?\\d+)\\s*",
    reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*",
    reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
    reHex = /^#([0-9a-f]{3,8})$/,
    reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$"),
    reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$"),
    reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$"),
    reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$"),
    reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$"),
    reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$");
1079
var named = {
  aliceblue: 0xf0f8ff,
  antiquewhite: 0xfaebd7,
  aqua: 0x00ffff,
  aquamarine: 0x7fffd4,
  azure: 0xf0ffff,
  beige: 0xf5f5dc,
  bisque: 0xffe4c4,
  black: 0x000000,
  blanchedalmond: 0xffebcd,
  blue: 0x0000ff,
  blueviolet: 0x8a2be2,
  brown: 0xa52a2a,
  burlywood: 0xdeb887,
  cadetblue: 0x5f9ea0,
  chartreuse: 0x7fff00,
  chocolate: 0xd2691e,
  coral: 0xff7f50,
  cornflowerblue: 0x6495ed,
  cornsilk: 0xfff8dc,
  crimson: 0xdc143c,
  cyan: 0x00ffff,
  darkblue: 0x00008b,
  darkcyan: 0x008b8b,
  darkgoldenrod: 0xb8860b,
  darkgray: 0xa9a9a9,
  darkgreen: 0x006400,
  darkgrey: 0xa9a9a9,
  darkkhaki: 0xbdb76b,
  darkmagenta: 0x8b008b,
  darkolivegreen: 0x556b2f,
  darkorange: 0xff8c00,
  darkorchid: 0x9932cc,
  darkred: 0x8b0000,
  darksalmon: 0xe9967a,
  darkseagreen: 0x8fbc8f,
  darkslateblue: 0x483d8b,
  darkslategray: 0x2f4f4f,
  darkslategrey: 0x2f4f4f,
  darkturquoise: 0x00ced1,
  darkviolet: 0x9400d3,
  deeppink: 0xff1493,
  deepskyblue: 0x00bfff,
  dimgray: 0x696969,
  dimgrey: 0x696969,
  dodgerblue: 0x1e90ff,
  firebrick: 0xb22222,
  floralwhite: 0xfffaf0,
  forestgreen: 0x228b22,
  fuchsia: 0xff00ff,
  gainsboro: 0xdcdcdc,
  ghostwhite: 0xf8f8ff,
  gold: 0xffd700,
  goldenrod: 0xdaa520,
  gray: 0x808080,
  green: 0x008000,
  greenyellow: 0xadff2f,
  grey: 0x808080,
  honeydew: 0xf0fff0,
  hotpink: 0xff69b4,
  indianred: 0xcd5c5c,
  indigo: 0x4b0082,
  ivory: 0xfffff0,
  khaki: 0xf0e68c,
  lavender: 0xe6e6fa,
  lavenderblush: 0xfff0f5,
  lawngreen: 0x7cfc00,
  lemonchiffon: 0xfffacd,
  lightblue: 0xadd8e6,
  lightcoral: 0xf08080,
  lightcyan: 0xe0ffff,
  lightgoldenrodyellow: 0xfafad2,
  lightgray: 0xd3d3d3,
  lightgreen: 0x90ee90,
  lightgrey: 0xd3d3d3,
  lightpink: 0xffb6c1,
  lightsalmon: 0xffa07a,
  lightseagreen: 0x20b2aa,
  lightskyblue: 0x87cefa,
  lightslategray: 0x778899,
  lightslategrey: 0x778899,
  lightsteelblue: 0xb0c4de,
  lightyellow: 0xffffe0,
  lime: 0x00ff00,
  limegreen: 0x32cd32,
  linen: 0xfaf0e6,
  magenta: 0xff00ff,
  maroon: 0x800000,
  mediumaquamarine: 0x66cdaa,
  mediumblue: 0x0000cd,
  mediumorchid: 0xba55d3,
  mediumpurple: 0x9370db,
  mediumseagreen: 0x3cb371,
  mediumslateblue: 0x7b68ee,
  mediumspringgreen: 0x00fa9a,
  mediumturquoise: 0x48d1cc,
  mediumvioletred: 0xc71585,
  midnightblue: 0x191970,
  mintcream: 0xf5fffa,
  mistyrose: 0xffe4e1,
  moccasin: 0xffe4b5,
  navajowhite: 0xffdead,
  navy: 0x000080,
  oldlace: 0xfdf5e6,
  olive: 0x808000,
  olivedrab: 0x6b8e23,
  orange: 0xffa500,
  orangered: 0xff4500,
  orchid: 0xda70d6,
  palegoldenrod: 0xeee8aa,
  palegreen: 0x98fb98,
  paleturquoise: 0xafeeee,
  palevioletred: 0xdb7093,
  papayawhip: 0xffefd5,
  peachpuff: 0xffdab9,
  peru: 0xcd853f,
  pink: 0xffc0cb,
  plum: 0xdda0dd,
  powderblue: 0xb0e0e6,
  purple: 0x800080,
  rebeccapurple: 0x663399,
  red: 0xff0000,
  rosybrown: 0xbc8f8f,
  royalblue: 0x4169e1,
  saddlebrown: 0x8b4513,
  salmon: 0xfa8072,
  sandybrown: 0xf4a460,
  seagreen: 0x2e8b57,
  seashell: 0xfff5ee,
  sienna: 0xa0522d,
  silver: 0xc0c0c0,
  skyblue: 0x87ceeb,
  slateblue: 0x6a5acd,
  slategray: 0x708090,
  slategrey: 0x708090,
  snow: 0xfffafa,
  springgreen: 0x00ff7f,
  steelblue: 0x4682b4,
  tan: 0xd2b48c,
  teal: 0x008080,
  thistle: 0xd8bfd8,
  tomato: 0xff6347,
  turquoise: 0x40e0d0,
  violet: 0xee82ee,
  wheat: 0xf5deb3,
  white: 0xffffff,
  whitesmoke: 0xf5f5f5,
  yellow: 0xffff00,
  yellowgreen: 0x9acd32
};
1230
define(Color, color, {
  copy: function(channels) {
    return Object.assign(new this.constructor, this, channels);
  },
  displayable: function() {
    return this.rgb().displayable();
  },
  hex: color_formatHex, // Deprecated! Use color.formatHex.
  formatHex: color_formatHex,
  formatHsl: color_formatHsl,
  formatRgb: color_formatRgb,
  toString: color_formatRgb
});
1244
function color_formatHex() {
  return this.rgb().formatHex();
}
1248
function color_formatHsl() {
  return hslConvert(this).formatHsl();
}
1252
function color_formatRgb() {
  return this.rgb().formatRgb();
}
1256
function color(format) {
  var m, l;
  format = (format + "").trim().toLowerCase();
  return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000
      : l === 3 ? new Rgb((m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1) // #f00
      : l === 8 ? rgba(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000
      : l === 4 ? rgba((m >> 12 & 0xf) | (m >> 8 & 0xf0), (m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), (((m & 0xf) << 4) | (m & 0xf)) / 0xff) // #f000
      : null) // invalid hex
      : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)
      : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)
      : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)
      : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)
      : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)
      : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)
      : named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins
      : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0)
      : null;
}
1275
function rgbn(n) {
  return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);
}
1279
function rgba(r, g, b, a) {
  if (a <= 0) r = g = b = NaN;
  return new Rgb(r, g, b, a);
}
1284
function rgbConvert(o) {
  if (!(o instanceof Color)) o = color(o);
  if (!o) return new Rgb;
  o = o.rgb();
  return new Rgb(o.r, o.g, o.b, o.opacity);
}
1291
function rgb$1(r, g, b, opacity) {
  return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);
}
1295
function Rgb(r, g, b, opacity) {
  this.r = +r;
  this.g = +g;
  this.b = +b;
  this.opacity = +opacity;
}
1302
define(Rgb, rgb$1, extend(Color, {
  brighter: function(k) {
    k = k == null ? brighter : Math.pow(brighter, k);
    return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
  },
  darker: function(k) {
    k = k == null ? darker : Math.pow(darker, k);
    return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
  },
  rgb: function() {
    return this;
  },
  displayable: function() {
    return (-0.5 <= this.r && this.r < 255.5)
        && (-0.5 <= this.g && this.g < 255.5)
        && (-0.5 <= this.b && this.b < 255.5)
        && (0 <= this.opacity && this.opacity <= 1);
  },
  hex: rgb_formatHex, // Deprecated! Use color.formatHex.
  formatHex: rgb_formatHex,
  formatRgb: rgb_formatRgb,
  toString: rgb_formatRgb
}));
1326
function rgb_formatHex() {
  return "#" + hex(this.r) + hex(this.g) + hex(this.b);
}
1330
function rgb_formatRgb() {
  var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
  return (a === 1 ? "rgb(" : "rgba(")
      + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", "
      + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", "
      + Math.max(0, Math.min(255, Math.round(this.b) || 0))
      + (a === 1 ? ")" : ", " + a + ")");
}
1339
function hex(value) {
  value = Math.max(0, Math.min(255, Math.round(value) || 0));
  return (value < 16 ? "0" : "") + value.toString(16);
}
1344
function hsla(h, s, l, a) {
  if (a <= 0) h = s = l = NaN;
  else if (l <= 0 || l >= 1) h = s = NaN;
  else if (s <= 0) h = NaN;
  return new Hsl(h, s, l, a);
}
1351
function hslConvert(o) {
  if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);
  if (!(o instanceof Color)) o = color(o);
  if (!o) return new Hsl;
  if (o instanceof Hsl) return o;
  o = o.rgb();
  var r = o.r / 255,
      g = o.g / 255,
      b = o.b / 255,
      min = Math.min(r, g, b),
      max = Math.max(r, g, b),
      h = NaN,
      s = max - min,
      l = (max + min) / 2;
  if (s) {
    if (r === max) h = (g - b) / s + (g < b) * 6;
    else if (g === max) h = (b - r) / s + 2;
    else h = (r - g) / s + 4;
    s /= l < 0.5 ? max + min : 2 - max - min;
    h *= 60;
  } else {
    s = l > 0 && l < 1 ? 0 : h;
  }
  return new Hsl(h, s, l, o.opacity);
}
1377
function hsl(h, s, l, opacity) {
  return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);
}
1381
function Hsl(h, s, l, opacity) {
  this.h = +h;
  this.s = +s;
  this.l = +l;
  this.opacity = +opacity;
}
1388
define(Hsl, hsl, extend(Color, {
  brighter: function(k) {
    k = k == null ? brighter : Math.pow(brighter, k);
    return new Hsl(this.h, this.s, this.l * k, this.opacity);
  },
  darker: function(k) {
    k = k == null ? darker : Math.pow(darker, k);
    return new Hsl(this.h, this.s, this.l * k, this.opacity);
  },
  rgb: function() {
    var h = this.h % 360 + (this.h < 0) * 360,
        s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
        l = this.l,
        m2 = l + (l < 0.5 ? l : 1 - l) * s,
        m1 = 2 * l - m2;
    return new Rgb(
      hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2),
      hsl2rgb(h, m1, m2),
      hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2),
      this.opacity
    );
  },
  displayable: function() {
    return (0 <= this.s && this.s <= 1 || isNaN(this.s))
        && (0 <= this.l && this.l <= 1)
        && (0 <= this.opacity && this.opacity <= 1);
  },
  formatHsl: function() {
    var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
    return (a === 1 ? "hsl(" : "hsla(")
        + (this.h || 0) + ", "
        + (this.s || 0) * 100 + "%, "
        + (this.l || 0) * 100 + "%"
        + (a === 1 ? ")" : ", " + a + ")");
  }
}));
1425
/* From FvD 13.37, CSS Color Module Level 3 */
function hsl2rgb(h, m1, m2) {
  return (h < 60 ? m1 + (m2 - m1) * h / 60
      : h < 180 ? m2
      : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60
      : m1) * 255;
}
1433
var prefix = "$";
1435
function Map() {}
1437
Map.prototype = map$2.prototype = {
  constructor: Map,
  has: function(key) {
    return (prefix + key) in this;
  },
  get: function(key) {
    return this[prefix + key];
  },
  set: function(key, value) {
    this[prefix + key] = value;
    return this;
  },
  remove: function(key) {
    var property = prefix + key;
    return property in this && delete this[property];
  },
  clear: function() {
    for (var property in this) if (property[0] === prefix) delete this[property];
  },
  keys: function() {
    var keys = [];
    for (var property in this) if (property[0] === prefix) keys.push(property.slice(1));
    return keys;
  },
  values: function() {
    var values = [];
    for (var property in this) if (property[0] === prefix) values.push(this[property]);
    return values;
  },
  entries: function() {
    var entries = [];
    for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]});
    return entries;
  },
  size: function() {
    var size = 0;
    for (var property in this) if (property[0] === prefix) ++size;
    return size;
  },
  empty: function() {
    for (var property in this) if (property[0] === prefix) return false;
    return true;
  },
  each: function(f) {
    for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this);
  }
};
1485
function map$2(object, f) {
  var map = new Map;
1488
  // Copy constructor.
  if (object instanceof Map) object.each(function(value, key) { map.set(key, value); });
1491
  // Index array by numeric index or specified key function.
  else if (Array.isArray(object)) {
    var i = -1,
        n = object.length,
        o;
1497
    if (f == null) while (++i < n) map.set(i, object[i]);
    else while (++i < n) map.set(f(o = object[i], i, object), o);
  }
1501
  // Convert object to map.
  else if (object) for (var key in object) map.set(key, object[key]);
1504
  return map;
}
1507
function Set() {}
1509
var proto = map$2.prototype;
1511
Set.prototype = {
  constructor: Set,
  has: proto.has,
  add: function(value) {
    value += "";
    this[prefix + value] = value;
    return this;
  },
  remove: proto.remove,
  clear: proto.clear,
  values: proto.keys,
  size: proto.size,
  empty: proto.empty,
  each: proto.each
};
1527
var getTextWidth = (function() {
	var context = document.createElement("canvas").getContext("2d");
	return function(text, font) {
		context.font = font || "10px sans-serif";
		var metrics = context.measureText(text);
		return metrics.width;
	};
})();
1536
var remToPx;
1538
function getRemToPx() {
	var font_size = parseFloat(getComputedStyle(document.documentElement).fontSize) || 16;
	remToPx = function (rem) { return rem * font_size; };
}
1543
function createDropdown(control_obj, state, container) {
	var dropdown_obj = {};
1546
	// Add dropdown elements to container
	var dropdown_wrapper = select(container).append("div")
		.attr("class", "fl-control fl-control-dropdown");
1550
	const dropdown = dropdown_wrapper.append("select")
		.on("change", function() {
			const data = dropdown.select("option:checked").datum();
			const index = data.options_index;
			control_obj.index(index);
			control_obj.trigger("change");
		});
1558
	var showControl = function(longest_text_width) {
		var dropdown_width = "100%";
1561
		if (state.dropdown_width_mode == "auto") {
			dropdown_width = (Math.min(longest_text_width + 40, remToPx(20)) + remToPx(1)) + "px";
		}
		else if (state.dropdown_width_mode == "fixed") {
			dropdown_width = remToPx(state.dropdown_width_fixed) + "px";
		}
1568
		container.style.width = state.dropdown_width_mode == "full" ? dropdown_width : "";
1570
		dropdown_wrapper.style("width", dropdown_width)
			.style("display", state.dropdown_width_mode !== "full" ? "inline-table" : null);
	};
1574
	var hideControl = function() {
		dropdown_wrapper.style("display", "none");
	};
1578
	dropdown_obj.show = showControl;
	dropdown_obj.hide = hideControl;
1581
1582
	dropdown_obj.update = function(sorted_options) {
		var dropdown_font_size = window.getComputedStyle(dropdown.node()).fontSize;
		if (!control_obj.n_options || state.control_type !== "dropdown") {
			hideControl();
			return dropdown_obj;
		}
1589
		const options = dropdown.selectAll("option").data(sorted_options, d => d.value);
		options.exit().remove();
1592
		var options_enter = options.enter()
			.append("option")
			.text(d => d.display)
			.attr("value", d => d.value);
1597
		let longest_text_width = 0;
		const font = dropdown_font_size + " sans-serif";
1600
		if (state.dropdown_width_mode === "auto") {
			options.merge(options_enter)
				.each(function(d) {
					const text_width = getTextWidth(d.display, font);
					longest_text_width = Math.max(longest_text_width, text_width);
				});
		}
1608
		showControl(longest_text_width);
1610
		return dropdown_obj;
	};
1613
1614
	return dropdown_obj;
}
1617
function createButtons(control_obj, state, container) {
	var button_obj = {};
	var button_container = select(container).append("div").attr("class", "fl-control fl-control-buttons");
1621
	var showControl = function() {
		button_container.classed("hidden", false);
	};
1625
	var hideControl = function() {
		button_container.classed("hidden", true);
	};
1629
	button_obj.show = showControl;
	button_obj.hide = hideControl;
1632
	button_obj.update = function(sorted_options) {
		if (!control_obj.n_options || state.control_type !== "buttons") {
			hideControl();
			return button_obj;
		}
1638
		var index = control_obj.index();
1640
		button_container.classed("grouped", state.button_group);
		button_container.classed("fixed-width", state.button_group_width_mode == "fixed" || state.button_group_width_mode == "full");
		button_container.style("width", state.button_group && state.button_group_width_mode == "fixed" ? remToPx(state.button_group_width_fixed) + "px" : state.button_group_width_mode == "full" ? "100%" : null);
1644
		var clickHandler = function(d) {
			var i = d.options_index;
			if (i === control_obj.index()) return;
			control_obj.index(i);
			control_obj.trigger("change");
		};
1651
		var buttons = button_container.selectAll(".button")
			.data(sorted_options, function(d) { return d.display; });
1654
		var buttons_enter = buttons.enter()
			.append("div")
			.attr("class", "button")
			.style("cursor", "pointer")
			.attr("role", "button")
			.attr("tabindex", 0)
			.on("click", function(d) { clickHandler(d); })
			.on("keyup", function(d) {
				if (event$1.code === "Space" || event$1.code === "Enter") {
					event$1.preventDefault();
					clickHandler(d);
				}
			});
1668
		buttons_enter.append("span")
			.text(function(d) { return d.display; });
1671
		showControl();
1673
		buttons.merge(buttons_enter)
			.classed("selected", function(d) { return d.options_index === index; })
			.attr("aria-pressed", function(d) { return d.options_index === index; });
1677
		buttons.exit().remove();
1679
		showControl();
	};
1682
	return button_obj;
}
1685
var xhtml = "http://www.w3.org/1999/xhtml";
1687
var namespaces = {
  svg: "http://www.w3.org/2000/svg",
  xhtml: xhtml,
  xlink: "http://www.w3.org/1999/xlink",
  xml: "http://www.w3.org/XML/1998/namespace",
  xmlns: "http://www.w3.org/2000/xmlns/"
};
1695
function namespace(name) {
  var prefix = name += "", i = prefix.indexOf(":");
  if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
  return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name;
}
1701
function creatorInherit(name) {
  return function() {
    var document = this.ownerDocument,
        uri = this.namespaceURI;
    return uri === xhtml && document.documentElement.namespaceURI === xhtml
        ? document.createElement(name)
        : document.createElementNS(uri, name);
  };
}
1711
function creatorFixed(fullname) {
  return function() {
    return this.ownerDocument.createElementNS(fullname.space, fullname.local);
  };
}
1717
function creator(name) {
  var fullname = namespace(name);
  return (fullname.local
      ? creatorFixed
      : creatorInherit)(fullname);
}
1724
function none() {}
1726
function selector(selector) {
  return selector == null ? none : function() {
    return this.querySelector(selector);
  };
}
1732
function selection_select(select) {
  if (typeof select !== "function") select = selector(select);
1735
  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
      if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
        if ("__data__" in node) subnode.__data__ = node.__data__;
        subgroup[i] = subnode;
      }
    }
  }
1744
  return new Selection(subgroups, this._parents);
}
1747
function empty() {
  return [];
}
1751
function selectorAll(selector) {
  return selector == null ? empty : function() {
    return this.querySelectorAll(selector);
  };
}
1757
function selection_selectAll(select) {
  if (typeof select !== "function") select = selectorAll(select);
1760
  for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
      if (node = group[i]) {
        subgroups.push(select.call(node, node.__data__, i, group));
        parents.push(node);
      }
    }
  }
1769
  return new Selection(subgroups, parents);
}
1772
function matcher(selector) {
  return function() {
    return this.matches(selector);
  };
}
1778
function selection_filter(match) {
  if (typeof match !== "function") match = matcher(match);
1781
  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
      if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
        subgroup.push(node);
      }
    }
  }
1789
  return new Selection(subgroups, this._parents);
}
1792
function sparse(update) {
  return new Array(update.length);
}
1796
function selection_enter() {
  return new Selection(this._enter || this._groups.map(sparse), this._parents);
}
1800
function EnterNode(parent, datum) {
  this.ownerDocument = parent.ownerDocument;
  this.namespaceURI = parent.namespaceURI;
  this._next = null;
  this._parent = parent;
  this.__data__ = datum;
}
1808
EnterNode.prototype = {
  constructor: EnterNode,
  appendChild: function(child) { return this._parent.insertBefore(child, this._next); },
  insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },
  querySelector: function(selector) { return this._parent.querySelector(selector); },
  querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }
};
1816
function constant$2(x) {
  return function() {
    return x;
  };
}
1822
var keyPrefix = "$"; // Protect against keys like “__proto__”.
1824
function bindIndex(parent, group, enter, update, exit, data) {
  var i = 0,
      node,
      groupLength = group.length,
      dataLength = data.length;
1830
  // Put any non-null nodes that fit into update.
  // Put any null nodes into enter.
  // Put any remaining data into enter.
  for (; i < dataLength; ++i) {
    if (node = group[i]) {
      node.__data__ = data[i];
      update[i] = node;
    } else {
      enter[i] = new EnterNode(parent, data[i]);
    }
  }
1842
  // Put any non-null nodes that don’t fit into exit.
  for (; i < groupLength; ++i) {
    if (node = group[i]) {
      exit[i] = node;
    }
  }
}
1850
function bindKey(parent, group, enter, update, exit, data, key) {
  var i,
      node,
      nodeByKeyValue = {},
      groupLength = group.length,
      dataLength = data.length,
      keyValues = new Array(groupLength),
      keyValue;
1859
  // Compute the key for each node.
  // If multiple nodes have the same key, the duplicates are added to exit.
  for (i = 0; i < groupLength; ++i) {
    if (node = group[i]) {
      keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group);
      if (keyValue in nodeByKeyValue) {
        exit[i] = node;
      } else {
        nodeByKeyValue[keyValue] = node;
      }
    }
  }
1872
  // Compute the key for each datum.
  // If there a node associated with this key, join and add it to update.
  // If there is not (or the key is a duplicate), add it to enter.
  for (i = 0; i < dataLength; ++i) {
    keyValue = keyPrefix + key.call(parent, data[i], i, data);
    if (node = nodeByKeyValue[keyValue]) {
      update[i] = node;
      node.__data__ = data[i];
      nodeByKeyValue[keyValue] = null;
    } else {
      enter[i] = new EnterNode(parent, data[i]);
    }
  }
1886
  // Add any remaining nodes that were not bound to data to exit.
  for (i = 0; i < groupLength; ++i) {
    if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) {
      exit[i] = node;
    }
  }
}
1894
function selection_data(value, key) {
  if (!value) {
    data = new Array(this.size()), j = -1;
    this.each(function(d) { data[++j] = d; });
    return data;
  }
1901
  var bind = key ? bindKey : bindIndex,
      parents = this._parents,
      groups = this._groups;
1905
  if (typeof value !== "function") value = constant$2(value);
1907
  for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {
    var parent = parents[j],
        group = groups[j],
        groupLength = group.length,
        data = value.call(parent, parent && parent.__data__, j, parents),
        dataLength = data.length,
        enterGroup = enter[j] = new Array(dataLength),
        updateGroup = update[j] = new Array(dataLength),
        exitGroup = exit[j] = new Array(groupLength);
1917
    bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);
1919
    // Now connect the enter nodes to their following update node, such that
    // appendChild can insert the materialized enter node before this node,
    // rather than at the end of the parent node.
    for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {
      if (previous = enterGroup[i0]) {
        if (i0 >= i1) i1 = i0 + 1;
        while (!(next = updateGroup[i1]) && ++i1 < dataLength);
        previous._next = next || null;
      }
    }
  }
1931
  update = new Selection(update, parents);
  update._enter = enter;
  update._exit = exit;
  return update;
}
1937
function selection_exit() {
  return new Selection(this._exit || this._groups.map(sparse), this._parents);
}
1941
function selection_join(onenter, onupdate, onexit) {
  var enter = this.enter(), update = this, exit = this.exit();
  enter = typeof onenter === "function" ? onenter(enter) : enter.append(onenter + "");
  if (onupdate != null) update = onupdate(update);
  if (onexit == null) exit.remove(); else onexit(exit);
  return enter && update ? enter.merge(update).order() : update;
}
1949
function selection_merge(selection) {
1951
  for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
    for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
      if (node = group0[i] || group1[i]) {
        merge[i] = node;
      }
    }
  }
1959
  for (; j < m0; ++j) {
    merges[j] = groups0[j];
  }
1963
  return new Selection(merges, this._parents);
}
1966
function selection_order() {
1968
  for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {
    for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
      if (node = group[i]) {
        if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next);
        next = node;
      }
    }
  }
1977
  return this;
}
1980
function selection_sort(compare) {
  if (!compare) compare = ascending$1;
1983
  function compareNode(a, b) {
    return a && b ? compare(a.__data__, b.__data__) : !a - !b;
  }
1987
  for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {
    for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {
      if (node = group[i]) {
        sortgroup[i] = node;
      }
    }
    sortgroup.sort(compareNode);
  }
1996
  return new Selection(sortgroups, this._parents).order();
}
1999
function ascending$1(a, b) {
  return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
2003
function selection_call() {
  var callback = arguments[0];
  arguments[0] = this;
  callback.apply(null, arguments);
  return this;
}
2010
function selection_nodes() {
  var nodes = new Array(this.size()), i = -1;
  this.each(function() { nodes[++i] = this; });
  return nodes;
}
2016
function selection_node() {
2018
  for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
    for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {
      var node = group[i];
      if (node) return node;
    }
  }
2025
  return null;
}
2028
function selection_size() {
  var size = 0;
  this.each(function() { ++size; });
  return size;
}
2034
function selection_empty() {
  return !this.node();
}
2038
function selection_each(callback) {
2040
  for (var groups = this._groups, 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.call(node, node.__data__, i, group);
    }
  }
2046
  return this;
}
2049
function attrRemove(name) {
  return function() {
    this.removeAttribute(name);
  };
}
2055
function attrRemoveNS(fullname) {
  return function() {
    this.removeAttributeNS(fullname.space, fullname.local);
  };
}
2061
function attrConstant(name, value) {
  return function() {
    this.setAttribute(name, value);
  };
}
2067
function attrConstantNS(fullname, value) {
  return function() {
    this.setAttributeNS(fullname.space, fullname.local, value);
  };
}
2073
function attrFunction(name, value) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) this.removeAttribute(name);
    else this.setAttribute(name, v);
  };
}
2081
function attrFunctionNS(fullname, value) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) this.removeAttributeNS(fullname.space, fullname.local);
    else this.setAttributeNS(fullname.space, fullname.local, v);
  };
}
2089
function selection_attr(name, value) {
  var fullname = namespace(name);
2092
  if (arguments.length < 2) {
    var node = this.node();
    return fullname.local
        ? node.getAttributeNS(fullname.space, fullname.local)
        : node.getAttribute(fullname);
  }
2099
  return this.each((value == null
      ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function"
      ? (fullname.local ? attrFunctionNS : attrFunction)
      : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value));
}
2105
function defaultView(node) {
  return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node
      || (node.document && node) // node is a Window
      || node.defaultView; // node is a Document
}
2111
function styleRemove(name) {
  return function() {
    this.style.removeProperty(name);
  };
}
2117
function styleConstant(name, value, priority) {
  return function() {
    this.style.setProperty(name, value, priority);
  };
}
2123
function styleFunction(name, value, priority) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) this.style.removeProperty(name);
    else this.style.setProperty(name, v, priority);
  };
}
2131
function selection_style(name, value, priority) {
  return arguments.length > 1
      ? this.each((value == null
            ? styleRemove : typeof value === "function"
            ? styleFunction
            : styleConstant)(name, value, priority == null ? "" : priority))
      : styleValue(this.node(), name);
}
2140
function styleValue(node, name) {
  return node.style.getPropertyValue(name)
      || defaultView(node).getComputedStyle(node, null).getPropertyValue(name);
}
2145
function propertyRemove(name) {
  return function() {
    delete this[name];
  };
}
2151
function propertyConstant(name, value) {
  return function() {
    this[name] = value;
  };
}
2157
function propertyFunction(name, value) {
  return function() {
    var v = value.apply(this, arguments);
    if (v == null) delete this[name];
    else this[name] = v;
  };
}
2165
function selection_property(name, value) {
  return arguments.length > 1
      ? this.each((value == null
          ? propertyRemove : typeof value === "function"
          ? propertyFunction
          : propertyConstant)(name, value))
      : this.node()[name];
}
2174
function classArray(string) {
  return string.trim().split(/^|\s+/);
}
2178
function classList(node) {
  return node.classList || new ClassList(node);
}
2182
function ClassList(node) {
  this._node = node;
  this._names = classArray(node.getAttribute("class") || "");
}
2187
ClassList.prototype = {
  add: function(name) {
    var i = this._names.indexOf(name);
    if (i < 0) {
      this._names.push(name);
      this._node.setAttribute("class", this._names.join(" "));
    }
  },
  remove: function(name) {
    var i = this._names.indexOf(name);
    if (i >= 0) {
      this._names.splice(i, 1);
      this._node.setAttribute("class", this._names.join(" "));
    }
  },
  contains: function(name) {
    return this._names.indexOf(name) >= 0;
  }
};
2207
function classedAdd(node, names) {
  var list = classList(node), i = -1, n = names.length;
  while (++i < n) list.add(names[i]);
}
2212
function classedRemove(node, names) {
  var list = classList(node), i = -1, n = names.length;
  while (++i < n) list.remove(names[i]);
}
2217
function classedTrue(names) {
  return function() {
    classedAdd(this, names);
  };
}
2223
function classedFalse(names) {
  return function() {
    classedRemove(this, names);
  };
}
2229
function classedFunction(names, value) {
  return function() {
    (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);
  };
}
2235
function selection_classed(name, value) {
  var names = classArray(name + "");
2238
  if (arguments.length < 2) {
    var list = classList(this.node()), i = -1, n = names.length;
    while (++i < n) if (!list.contains(names[i])) return false;
    return true;
  }
2244
  return this.each((typeof value === "function"
      ? classedFunction : value
      ? classedTrue
      : classedFalse)(names, value));
}
2250
function textRemove() {
  this.textContent = "";
}
2254
function textConstant(value) {
  return function() {
    this.textContent = value;
  };
}
2260
function textFunction(value) {
  return function() {
    var v = value.apply(this, arguments);
    this.textContent = v == null ? "" : v;
  };
}
2267
function selection_text(value) {
  return arguments.length
      ? this.each(value == null
          ? textRemove : (typeof value === "function"
          ? textFunction
          : textConstant)(value))
      : this.node().textContent;
}
2276
function htmlRemove() {
  this.innerHTML = "";
}
2280
function htmlConstant(value) {
  return function() {
    this.innerHTML = value;
  };
}
2286
function htmlFunction(value) {
  return function() {
    var v = value.apply(this, arguments);
    this.innerHTML = v == null ? "" : v;
  };
}
2293
function selection_html(value) {
  return arguments.length
      ? this.each(value == null
          ? htmlRemove : (typeof value === "function"
          ? htmlFunction
          : htmlConstant)(value))
      : this.node().innerHTML;
}
2302
function raise() {
  if (this.nextSibling) this.parentNode.appendChild(this);
}
2306
function selection_raise() {
  return this.each(raise);
}
2310
function lower() {
  if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);
}
2314
function selection_lower() {
  return this.each(lower);
}
2318
function selection_append(name) {
  var create = typeof name === "function" ? name : creator(name);
  return this.select(function() {
    return this.appendChild(create.apply(this, arguments));
  });
}
2325
function constantNull() {
  return null;
}
2329
function selection_insert(name, before) {
  var create = typeof name === "function" ? name : creator(name),
      select = before == null ? constantNull : typeof before === "function" ? before : selector(before);
  return this.select(function() {
    return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);
  });
}
2337
function remove() {
  var parent = this.parentNode;
  if (parent) parent.removeChild(this);
}
2342
function selection_remove() {
  return this.each(remove);
}
2346
function selection_cloneShallow() {
  var clone = this.cloneNode(false), parent = this.parentNode;
  return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
2351
function selection_cloneDeep() {
  var clone = this.cloneNode(true), parent = this.parentNode;
  return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
2356
function selection_clone(deep) {
  return this.select(deep ? selection_cloneDeep : selection_cloneShallow);
}
2360
function selection_datum(value) {
  return arguments.length
      ? this.property("__data__", value)
      : this.node().__data__;
}
2366
var filterEvents = {};
2368
var event = null;
2370
if (typeof document !== "undefined") {
  var element = document.documentElement;
  if (!("onmouseenter" in element)) {
    filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"};
  }
}
2377
function filterContextListener(listener, index, group) {
  listener = contextListener(listener, index, group);
  return function(event) {
    var related = event.relatedTarget;
    if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) {
      listener.call(this, event);
    }
  };
}
2387
function contextListener(listener, index, group) {
  return function(event1) {
    var event0 = event; // Events can be reentrant (e.g., focus).
    event = event1;
    try {
      listener.call(this, this.__data__, index, group);
    } finally {
      event = event0;
    }
  };
}
2399
function parseTypenames(typenames) {
  return typenames.trim().split(/^|\s+/).map(function(t) {
    var name = "", i = t.indexOf(".");
    if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
    return {type: t, name: name};
  });
}
2407
function onRemove(typename) {
  return function() {
    var on = this.__on;
    if (!on) return;
    for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {
      if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {
        this.removeEventListener(o.type, o.listener, o.capture);
      } else {
        on[++i] = o;
      }
    }
    if (++i) on.length = i;
    else delete this.__on;
  };
}
2423
function onAdd(typename, value, capture) {
  var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener;
  return function(d, i, group) {
    var on = this.__on, o, listener = wrap(value, i, group);
    if (on) for (var j = 0, m = on.length; j < m; ++j) {
      if ((o = on[j]).type === typename.type && o.name === typename.name) {
        this.removeEventListener(o.type, o.listener, o.capture);
        this.addEventListener(o.type, o.listener = listener, o.capture = capture);
        o.value = value;
        return;
      }
    }
    this.addEventListener(typename.type, listener, capture);
    o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture};
    if (!on) this.__on = [o];
    else on.push(o);
  };
}
2442
function selection_on(typename, value, capture) {
  var typenames = parseTypenames(typename + ""), i, n = typenames.length, t;
2445
  if (arguments.length < 2) {
    var on = this.node().__on;
    if (on) for (var j = 0, m = on.length, o; j < m; ++j) {
      for (i = 0, o = on[j]; i < n; ++i) {
        if ((t = typenames[i]).type === o.type && t.name === o.name) {
          return o.value;
        }
      }
    }
    return;
  }
2457
  on = value ? onAdd : onRemove;
  if (capture == null) capture = false;
  for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));
  return this;
}
2463
function dispatchEvent(node, type, params) {
  var window = defaultView(node),
      event = window.CustomEvent;
2467
  if (typeof event === "function") {
    event = new event(type, params);
  } else {
    event = window.document.createEvent("Event");
    if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;
    else event.initEvent(type, false, false);
  }
2475
  node.dispatchEvent(event);
}
2478
function dispatchConstant(type, params) {
  return function() {
    return dispatchEvent(this, type, params);
  };
}
2484
function dispatchFunction(type, params) {
  return function() {
    return dispatchEvent(this, type, params.apply(this, arguments));
  };
}
2490
function selection_dispatch(type, params) {
  return this.each((typeof params === "function"
      ? dispatchFunction
      : dispatchConstant)(type, params));
}
2496
var root = [null];
2498
function Selection(groups, parents) {
  this._groups = groups;
  this._parents = parents;
}
2503
Selection.prototype = {
  constructor: Selection,
  select: selection_select,
  selectAll: selection_selectAll,
  filter: selection_filter,
  data: selection_data,
  enter: selection_enter,
  exit: selection_exit,
  join: selection_join,
  merge: selection_merge,
  order: selection_order,
  sort: selection_sort,
  call: selection_call,
  nodes: selection_nodes,
  node: selection_node,
  size: selection_size,
  empty: selection_empty,
  each: selection_each,
  attr: selection_attr,
  style: selection_style,
  property: selection_property,
  classed: selection_classed,
  text: selection_text,
  html: selection_html,
  raise: selection_raise,
  lower: selection_lower,
  append: selection_append,
  insert: selection_insert,
  remove: selection_remove,
  clone: selection_clone,
  datum: selection_datum,
  on: selection_on,
  dispatch: selection_dispatch
};
2538
function d3_select(selector) {
  return typeof selector === "string"
      ? new Selection([[document.querySelector(selector)]], [document.documentElement])
      : new Selection([[selector]], root);
}
2544
function sourceEvent() {
  var current = event, source;
  while (source = current.sourceEvent) current = source;
  return current;
}
2550
function point(node, event) {
  var svg = node.ownerSVGElement || node;
2553
  if (svg.createSVGPoint) {
    var point = svg.createSVGPoint();
    point.x = event.clientX, point.y = event.clientY;
    point = point.matrixTransform(node.getScreenCTM().inverse());
    return [point.x, point.y];
  }
2560
  var rect = node.getBoundingClientRect();
  return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop];
}
2564
function d3_mouse(node) {
  var event = sourceEvent();
  if (event.changedTouches) event = event.changedTouches[0];
  return point(node, event);
}
2570
var slice$1 = Array.prototype.slice;
2572
function identity$1(x) {
  return x;
}
2576
var top = 1,
    right = 2,
    bottom = 3,
    left = 4,
    epsilon = 1e-6;
2582
function translateX(x) {
  return "translate(" + (x + 0.5) + ",0)";
}
2586
function translateY(y) {
  return "translate(0," + (y + 0.5) + ")";
}
2590
function number$1(scale) {
  return function(d) {
    return +scale(d);
  };
}
2596
function center(scale) {
  var offset = Math.max(0, scale.bandwidth() - 1) / 2; // Adjust for 0.5px offset.
  if (scale.round()) offset = Math.round(offset);
  return function(d) {
    return +scale(d) + offset;
  };
}
2604
function entering() {
  return !this.__axis;
}
2608
function axis(orient, scale) {
  var tickArguments = [],
      tickValues = null,
      tickFormat = null,
      tickSizeInner = 6,
      tickSizeOuter = 6,
      tickPadding = 3,
      k = orient === top || orient === left ? -1 : 1,
      x = orient === left || orient === right ? "x" : "y",
      transform = orient === top || orient === bottom ? translateX : translateY;
2619
  function axis(context) {
    var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues,
        format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$1) : tickFormat,
        spacing = Math.max(tickSizeInner, 0) + tickPadding,
        range = scale.range(),
        range0 = +range[0] + 0.5,
        range1 = +range[range.length - 1] + 0.5,
        position = (scale.bandwidth ? center : number$1)(scale.copy()),
        selection = context.selection ? context.selection() : context,
        path = selection.selectAll(".domain").data([null]),
        tick = selection.selectAll(".tick").data(values, scale).order(),
        tickExit = tick.exit(),
        tickEnter = tick.enter().append("g").attr("class", "tick"),
        line = tick.select("line"),
        text = tick.select("text");
2635
    path = path.merge(path.enter().insert("path", ".tick")
        .attr("class", "domain")
        .attr("stroke", "currentColor"));
2639
    tick = tick.merge(tickEnter);
2641
    line = line.merge(tickEnter.append("line")
        .attr("stroke", "currentColor")
        .attr(x + "2", k * tickSizeInner));
2645
    text = text.merge(tickEnter.append("text")
        .attr("fill", "currentColor")
        .attr(x, k * spacing)
        .attr("dy", orient === top ? "0em" : orient === bottom ? "0.71em" : "0.32em"));
2650
    if (context !== selection) {
      path = path.transition(context);
      tick = tick.transition(context);
      line = line.transition(context);
      text = text.transition(context);
2656
      tickExit = tickExit.transition(context)
          .attr("opacity", epsilon)
          .attr("transform", function(d) { return isFinite(d = position(d)) ? transform(d) : this.getAttribute("transform"); });
2660
      tickEnter
          .attr("opacity", epsilon)
          .attr("transform", function(d) { var p = this.parentNode.__axis; return transform(p && isFinite(p = p(d)) ? p : position(d)); });
    }
2665
    tickExit.remove();
2667
    path
        .attr("d", orient === left || orient == right
            ? (tickSizeOuter ? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter : "M0.5," + range0 + "V" + range1)
            : (tickSizeOuter ? "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter : "M" + range0 + ",0.5H" + range1));
2672
    tick
        .attr("opacity", 1)
        .attr("transform", function(d) { return transform(position(d)); });
2676
    line
        .attr(x + "2", k * tickSizeInner);
2679
    text
        .attr(x, k * spacing)
        .text(format);
2683
    selection.filter(entering)
        .attr("fill", "none")
        .attr("font-size", 10)
        .attr("font-family", "sans-serif")
        .attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle");
2689
    selection
        .each(function() { this.__axis = position; });
  }
2693
  axis.scale = function(_) {
    return arguments.length ? (scale = _, axis) : scale;
  };
2697
  axis.ticks = function() {
    return tickArguments = slice$1.call(arguments), axis;
  };
2701
  axis.tickArguments = function(_) {
    return arguments.length ? (tickArguments = _ == null ? [] : slice$1.call(_), axis) : tickArguments.slice();
  };
2705
  axis.tickValues = function(_) {
    return arguments.length ? (tickValues = _ == null ? null : slice$1.call(_), axis) : tickValues && tickValues.slice();
  };
2709
  axis.tickFormat = function(_) {
    return arguments.length ? (tickFormat = _, axis) : tickFormat;
  };
2713
  axis.tickSize = function(_) {
    return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner;
  };
2717
  axis.tickSizeInner = function(_) {
    return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner;
  };
2721
  axis.tickSizeOuter = function(_) {
    return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter;
  };
2725
  axis.tickPadding = function(_) {
    return arguments.length ? (tickPadding = +_, axis) : tickPadding;
  };
2729
  return axis;
}
2732
function axisBottom(scale) {
  return axis(bottom, scale);
}
2736
function ascending(a, b) {
  return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
2740
function bisector(compare) {
  if (compare.length === 1) compare = ascendingComparator(compare);
  return {
    left: function(a, x, lo, hi) {
      if (lo == null) lo = 0;
      if (hi == null) 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 (lo == null) lo = 0;
      if (hi == null) 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;
    }
  };
}
2766
function ascendingComparator(f) {
  return function(d, x) {
    return ascending(f(d), x);
  };
}
2772
var ascendingBisect = bisector(ascending);
var bisectRight = ascendingBisect.right;
2775
var e10 = Math.sqrt(50),
    e5 = Math.sqrt(10),
    e2 = Math.sqrt(2);
2779
function ticks(start, stop, count) {
  var reverse,
      i = -1,
      n,
      ticks,
      step;
2786
  stop = +stop, start = +start, count = +count;
  if (start === stop && count > 0) return [start];
  if (reverse = stop < start) n = start, start = stop, stop = n;
  if ((step = tickIncrement(start, stop, count)) === 0 || !isFinite(step)) return [];
2791
  if (step > 0) {
    start = Math.ceil(start / step);
    stop = Math.floor(stop / step);
    ticks = new Array(n = Math.ceil(stop - start + 1));
    while (++i < n) ticks[i] = (start + i) * step;
  } else {
    start = Math.floor(start * step);
    stop = Math.ceil(stop * step);
    ticks = new Array(n = Math.ceil(start - stop + 1));
    while (++i < n) ticks[i] = (start - i) / step;
  }
2803
  if (reverse) ticks.reverse();
2805
  return ticks;
}
2808
function tickIncrement(start, stop, count) {
  var step = (stop - start) / Math.max(0, count),
      power = Math.floor(Math.log(step) / Math.LN10),
      error = step / Math.pow(10, power);
  return power >= 0
      ? (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1) * Math.pow(10, power)
      : -Math.pow(10, -power) / (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1);
}
2817
function tickStep(start, stop, count) {
  var step0 = Math.abs(stop - start) / Math.max(0, count),
      step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)),
      error = step0 / step1;
  if (error >= e10) step1 *= 10;
  else if (error >= e5) step1 *= 5;
  else if (error >= e2) step1 *= 2;
  return stop < start ? -step1 : step1;
}
2827
function constant$1(x) {
  return function() {
    return x;
  };
}
2833
function linear$1(a, d) {
  return function(t) {
    return a + t * d;
  };
}
2839
function exponential(a, b, y) {
  return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {
    return Math.pow(a + t * b, y);
  };
}
2845
function gamma(y) {
  return (y = +y) === 1 ? nogamma : function(a, b) {
    return b - a ? exponential(a, b, y) : constant$1(isNaN(a) ? b : a);
  };
}
2851
function nogamma(a, b) {
  var d = b - a;
  return d ? linear$1(a, d) : constant$1(isNaN(a) ? b : a);
}
2856
var rgb = (function rgbGamma(y) {
  var color = gamma(y);
2859
  function rgb(start, end) {
    var r = color((start = rgb$1(start)).r, (end = rgb$1(end)).r),
        g = color(start.g, end.g),
        b = color(start.b, end.b),
        opacity = nogamma(start.opacity, end.opacity);
    return function(t) {
      start.r = r(t);
      start.g = g(t);
      start.b = b(t);
      start.opacity = opacity(t);
      return start + "";
    };
  }
2873
  rgb.gamma = rgbGamma;
2875
  return rgb;
})(1);
2878
function numberArray(a, b) {
  if (!b) b = [];
  var n = a ? Math.min(b.length, a.length) : 0,
      c = b.slice(),
      i;
  return function(t) {
    for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t;
    return c;
  };
}
2889
function isNumberArray(x) {
  return ArrayBuffer.isView(x) && !(x instanceof DataView);
}
2893
function genericArray(a, b) {
  var nb = b ? b.length : 0,
      na = a ? Math.min(nb, a.length) : 0,
      x = new Array(na),
      c = new Array(nb),
      i;
2900
  for (i = 0; i < na; ++i) x[i] = interpolateValue(a[i], b[i]);
  for (; i < nb; ++i) c[i] = b[i];
2903
  return function(t) {
    for (i = 0; i < na; ++i) c[i] = x[i](t);
    return c;
  };
}
2909
function date(a, b) {
  var d = new Date;
  return a = +a, b = +b, function(t) {
    return d.setTime(a * (1 - t) + b * t), d;
  };
}
2916
function reinterpolate(a, b) {
  return a = +a, b = +b, function(t) {
    return a * (1 - t) + b * t;
  };
}
2922
function object(a, b) {
  var i = {},
      c = {},
      k;
2927
  if (a === null || typeof a !== "object") a = {};
  if (b === null || typeof b !== "object") b = {};
2930
  for (k in b) {
    if (k in a) {
      i[k] = interpolateValue(a[k], b[k]);
    } else {
      c[k] = b[k];
    }
  }
2938
  return function(t) {
    for (k in i) c[k] = i[k](t);
    return c;
  };
}
2944
var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g,
    reB = new RegExp(reA.source, "g");
2947
function zero(b) {
  return function() {
    return b;
  };
}
2953
function one(b) {
  return function(t) {
    return b(t) + "";
  };
}
2959
function string(a, b) {
  var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b
      am, // current match in a
      bm, // current match in b
      bs, // string preceding current number in b, if any
      i = -1, // index in s
      s = [], // string constants and placeholders
      q = []; // number interpolators
2968
  // Coerce inputs to strings.
  a = a + "", b = b + "";
2971
  // Interpolate pairs of numbers in a & b.
  while ((am = reA.exec(a))
      && (bm = reB.exec(b))) {
    if ((bs = bm.index) > bi) { // a string precedes the next number in b
      bs = b.slice(bi, bs);
      if (s[i]) s[i] += bs; // coalesce with previous string
      else s[++i] = bs;
    }
    if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match
      if (s[i]) s[i] += bm; // coalesce with previous string
      else s[++i] = bm;
    } else { // interpolate non-matching numbers
      s[++i] = null;
      q.push({i: i, x: reinterpolate(am, bm)});
    }
    bi = reB.lastIndex;
  }
2989
  // Add remains of b.
  if (bi < b.length) {
    bs = b.slice(bi);
    if (s[i]) s[i] += bs; // coalesce with previous string
    else s[++i] = bs;
  }
2996
  // Special optimization for only a single match.
  // Otherwise, interpolate each of the numbers and rejoin the string.
  return s.length < 2 ? (q[0]
      ? one(q[0].x)
      : zero(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("");
        });
}
3007
function interpolateValue(a, b) {
  var t = typeof b, c;
  return b == null || t === "boolean" ? constant$1(b)
      : (t === "number" ? reinterpolate
      : t === "string" ? ((c = color(b)) ? (b = c, rgb) : string)
      : b instanceof color ? rgb
      : b instanceof Date ? date
      : isNumberArray(b) ? numberArray
      : Array.isArray(b) ? genericArray
      : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object
      : reinterpolate)(a, b);
}
3020
function interpolateRound(a, b) {
  return a = +a, b = +b, function(t) {
    return Math.round(a * (1 - t) + b * t);
  };
}
3026
var array = Array.prototype;
3028
var map$1 = array.map;
var slice = array.slice;
3031
function constant(x) {
  return function() {
    return x;
  };
}
3037
function number(x) {
  return +x;
}
3041
var unit = [0, 1];
3043
function deinterpolateLinear(a, b) {
  return (b -= (a = +a))
      ? function(x) { return (x - a) / b; }
      : constant(b);
}
3049
function deinterpolateClamp(deinterpolate) {
  return function(a, b) {
    var d = deinterpolate(a = +a, b = +b);
    return function(x) { return x <= a ? 0 : x >= b ? 1 : d(x); };
  };
}
3056
function reinterpolateClamp(reinterpolate) {
  return function(a, b) {
    var r = reinterpolate(a = +a, b = +b);
    return function(t) { return t <= 0 ? a : t >= 1 ? b : r(t); };
  };
}
3063
function bimap(domain, range, deinterpolate, reinterpolate) {
  var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1];
  if (d1 < d0) d0 = deinterpolate(d1, d0), r0 = reinterpolate(r1, r0);
  else d0 = deinterpolate(d0, d1), r0 = reinterpolate(r0, r1);
  return function(x) { return r0(d0(x)); };
}
3070
function polymap(domain, range, deinterpolate, reinterpolate) {
  var j = Math.min(domain.length, range.length) - 1,
      d = new Array(j),
      r = new Array(j),
      i = -1;
3076
  // Reverse descending domains.
  if (domain[j] < domain[0]) {
    domain = domain.slice().reverse();
    range = range.slice().reverse();
  }
3082
  while (++i < j) {
    d[i] = deinterpolate(domain[i], domain[i + 1]);
    r[i] = reinterpolate(range[i], range[i + 1]);
  }
3087
  return function(x) {
    var i = bisectRight(domain, x, 1, j) - 1;
    return r[i](d[i](x));
  };
}
3093
function copy(source, target) {
  return target
      .domain(source.domain())
      .range(source.range())
      .interpolate(source.interpolate())
      .clamp(source.clamp());
}
3101
// deinterpolate(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].
// reinterpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding domain value x in [a,b].
function continuous(deinterpolate, reinterpolate) {
  var domain = unit,
      range = unit,
      interpolate = interpolateValue,
      clamp = false,
      piecewise,
      output,
      input;
3112
  function rescale() {
    piecewise = Math.min(domain.length, range.length) > 2 ? polymap : bimap;
    output = input = null;
    return scale;
  }
3118
  function scale(x) {
    return (output || (output = piecewise(domain, range, clamp ? deinterpolateClamp(deinterpolate) : deinterpolate, interpolate)))(+x);
  }
3122
  scale.invert = function(y) {
    return (input || (input = piecewise(range, domain, deinterpolateLinear, clamp ? reinterpolateClamp(reinterpolate) : reinterpolate)))(+y);
  };
3126
  scale.domain = function(_) {
    return arguments.length ? (domain = map$1.call(_, number), rescale()) : domain.slice();
  };
3130
  scale.range = function(_) {
    return arguments.length ? (range = slice.call(_), rescale()) : range.slice();
  };
3134
  scale.rangeRound = function(_) {
    return range = slice.call(_), interpolate = interpolateRound, rescale();
  };
3138
  scale.clamp = function(_) {
    return arguments.length ? (clamp = !!_, rescale()) : clamp;
  };
3142
  scale.interpolate = function(_) {
    return arguments.length ? (interpolate = _, rescale()) : interpolate;
  };
3146
  return rescale();
}
3149
function formatDecimal(x) {
  return Math.abs(x = Math.round(x)) >= 1e21
      ? x.toLocaleString("en").replace(/,/g, "")
      : x.toString(10);
}
3155
// Computes the decimal coefficient and exponent of the specified number x with
// significant digits p, where x is positive and p is in [1, 21] or undefined.
// For example, formatDecimalParts(1.23) returns ["123", 0].
function formatDecimalParts(x, p) {
  if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity
  var i, coefficient = x.slice(0, i);
3162
  // The string returned by toExponential either has the form \d\.\d+e[-+]\d+
  // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3).
  return [
    coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient,
    +x.slice(i + 1)
  ];
}
3170
function exponent(x) {
  return x = formatDecimalParts(Math.abs(x)), x ? x[1] : NaN;
}
3174
function formatGroup(grouping, thousands) {
  return function(value, width) {
    var i = value.length,
        t = [],
        j = 0,
        g = grouping[0],
        length = 0;
3182
    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 = grouping[j = (j + 1) % grouping.length];
    }
3189
    return t.reverse().join(thousands);
  };
}
3193
function formatNumerals(numerals) {
  return function(value) {
    return value.replace(/[0-9]/g, function(i) {
      return numerals[+i];
    });
  };
}
3201
// [[fill]align][sign][symbol][0][width][,][.precision][~][type]
var re = /^(?:(.)?([<>=^]))?([+\-( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?(~)?([a-z%])?$/i;
3204
function formatSpecifier(specifier) {
  if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier);
  var match;
  return new FormatSpecifier({
    fill: match[1],
    align: match[2],
    sign: match[3],
    symbol: match[4],
    zero: match[5],
    width: match[6],
    comma: match[7],
    precision: match[8] && match[8].slice(1),
    trim: match[9],
    type: match[10]
  });
}
3221
formatSpecifier.prototype = FormatSpecifier.prototype; // instanceof
3223
function FormatSpecifier(specifier) {
  this.fill = specifier.fill === undefined ? " " : specifier.fill + "";
  this.align = specifier.align === undefined ? ">" : specifier.align + "";
  this.sign = specifier.sign === undefined ? "-" : specifier.sign + "";
  this.symbol = specifier.symbol === undefined ? "" : specifier.symbol + "";
  this.zero = !!specifier.zero;
  this.width = specifier.width === undefined ? undefined : +specifier.width;
  this.comma = !!specifier.comma;
  this.precision = specifier.precision === undefined ? undefined : +specifier.precision;
  this.trim = !!specifier.trim;
  this.type = specifier.type === undefined ? "" : specifier.type + "";
}
3236
FormatSpecifier.prototype.toString = function() {
  return this.fill
      + this.align
      + this.sign
      + this.symbol
      + (this.zero ? "0" : "")
      + (this.width === undefined ? "" : Math.max(1, this.width | 0))
      + (this.comma ? "," : "")
      + (this.precision === undefined ? "" : "." + Math.max(0, this.precision | 0))
      + (this.trim ? "~" : "")
      + this.type;
};
3249
// Trims insignificant zeros, e.g., replaces 1.2000k with 1.2k.
function formatTrim(s) {
  out: for (var n = s.length, i = 1, i0 = -1, i1; i < n; ++i) {
    switch (s[i]) {
      case ".": i0 = i1 = i; break;
      case "0": if (i0 === 0) i0 = i; i1 = i; break;
      default: if (!+s[i]) break out; if (i0 > 0) i0 = 0; break;
    }
  }
  return i0 > 0 ? s.slice(0, i0) + s.slice(i1 + 1) : s;
}
3261
var prefixExponent;
3263
function formatPrefixAuto(x, p) {
  var d = formatDecimalParts(x, p);
  if (!d) return x + "";
  var coefficient = d[0],
      exponent = d[1],
      i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,
      n = coefficient.length;
  return i === n ? coefficient
      : i > n ? coefficient + new Array(i - n + 1).join("0")
      : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i)
      : "0." + new Array(1 - i).join("0") + formatDecimalParts(x, Math.max(0, p + i - 1))[0]; // less than 1y!
}
3276
function formatRounded(x, p) {
  var d = formatDecimalParts(x, p);
  if (!d) return x + "";
  var coefficient = d[0],
      exponent = d[1];
  return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient
      : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1)
      : coefficient + new Array(exponent - coefficient.length + 2).join("0");
}
3286
var formatTypes = {
  "%": function(x, p) { return (x * 100).toFixed(p); },
  "b": function(x) { return Math.round(x).toString(2); },
  "c": function(x) { return x + ""; },
  "d": formatDecimal,
  "e": function(x, p) { return x.toExponential(p); },
  "f": function(x, p) { return x.toFixed(p); },
  "g": function(x, p) { return x.toPrecision(p); },
  "o": function(x) { return Math.round(x).toString(8); },
  "p": function(x, p) { return formatRounded(x * 100, p); },
  "r": formatRounded,
  "s": formatPrefixAuto,
  "X": function(x) { return Math.round(x).toString(16).toUpperCase(); },
  "x": function(x) { return Math.round(x).toString(16); }
};
3302
function identity(x) {
  return x;
}
3306
var map = Array.prototype.map,
    prefixes = ["y","z","a","f","p","n","µ","m","","k","M","G","T","P","E","Z","Y"];
3309
function formatLocale(locale) {
  var group = locale.grouping === undefined || locale.thousands === undefined ? identity : formatGroup(map.call(locale.grouping, Number), locale.thousands + ""),
      currencyPrefix = locale.currency === undefined ? "" : locale.currency[0] + "",
      currencySuffix = locale.currency === undefined ? "" : locale.currency[1] + "",
      decimal = locale.decimal === undefined ? "." : locale.decimal + "",
      numerals = locale.numerals === undefined ? identity : formatNumerals(map.call(locale.numerals, String)),
      percent = locale.percent === undefined ? "%" : locale.percent + "",
      minus = locale.minus === undefined ? "-" : locale.minus + "",
      nan = locale.nan === undefined ? "NaN" : locale.nan + "";
3319
  function newFormat(specifier) {
    specifier = formatSpecifier(specifier);
3322
    var fill = specifier.fill,
        align = specifier.align,
        sign = specifier.sign,
        symbol = specifier.symbol,
        zero = specifier.zero,
        width = specifier.width,
        comma = specifier.comma,
        precision = specifier.precision,
        trim = specifier.trim,
        type = specifier.type;
3333
    // The "n" type is an alias for ",g".
    if (type === "n") comma = true, type = "g";
3336
    // The "" type, and any invalid type, is an alias for ".12~g".
    else if (!formatTypes[type]) precision === undefined && (precision = 12), trim = true, type = "g";
3339
    // If zero fill is specified, padding goes after sign and before digits.
    if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "=";
3342
    // Compute the prefix and suffix.
    // For SI-prefix, the suffix is lazily computed.
    var prefix = symbol === "$" ? currencyPrefix : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "",
        suffix = symbol === "$" ? currencySuffix : /[%p]/.test(type) ? percent : "";
3347
    // What format function should we use?
    // Is this an integer type?
    // Can this type generate exponential notation?
    var formatType = formatTypes[type],
        maybeSuffix = /[defgprs%]/.test(type);
3353
    // Set the default precision if not specified,
    // or clamp the specified precision to the supported range.
    // For significant precision, it must be in [1, 21].
    // For fixed precision, it must be in [0, 20].
    precision = precision === undefined ? 6
        : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision))
        : Math.max(0, Math.min(20, precision));
3361
    function format(value) {
      var valuePrefix = prefix,
          valueSuffix = suffix,
          i, n, c;
3366
      if (type === "c") {
        valueSuffix = formatType(value) + valueSuffix;
        value = "";
      } else {
        value = +value;
3372
        // Determine the sign. -0 is not less than 0, but 1 / -0 is!
        var valueNegative = value < 0 || 1 / value < 0;
3375
        // Perform the initial formatting.
        value = isNaN(value) ? nan : formatType(Math.abs(value), precision);
3378
        // Trim insignificant zeros.
        if (trim) value = formatTrim(value);
3381
        // If a negative value rounds to zero after formatting, and no explicit positive sign is requested, hide the sign.
        if (valueNegative && +value === 0 && sign !== "+") valueNegative = false;
3384
        // Compute the prefix and suffix.
        valuePrefix = (valueNegative ? (sign === "(" ? sign : minus) : sign === "-" || sign === "(" ? "" : sign) + valuePrefix;
        valueSuffix = (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + valueSuffix + (valueNegative && sign === "(" ? ")" : "");
3388
        // Break the formatted value into the integer “value” part that can be
        // grouped, and fractional or exponential “suffix” part that is not.
        if (maybeSuffix) {
          i = -1, n = value.length;
          while (++i < n) {
            if (c = value.charCodeAt(i), 48 > c || c > 57) {
              valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix;
              value = value.slice(0, i);
              break;
            }
          }
        }
      }
3402
      // If the fill character is not "0", grouping is applied before padding.
      if (comma && !zero) value = group(value, Infinity);
3405
      // Compute the padding.
      var length = valuePrefix.length + value.length + valueSuffix.length,
          padding = length < width ? new Array(width - length + 1).join(fill) : "";
3409
      // If the fill character is "0", grouping is applied after padding.
      if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = "";
3412
      // Reconstruct the final output based on the desired alignment.
      switch (align) {
        case "<": value = valuePrefix + value + valueSuffix + padding; break;
        case "=": value = valuePrefix + padding + value + valueSuffix; break;
        case "^": value = padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length); break;
        default: value = padding + valuePrefix + value + valueSuffix; break;
      }
3420
      return numerals(value);
    }
3423
    format.toString = function() {
      return specifier + "";
    };
3427
    return format;
  }
3430
  function formatPrefix(specifier, value) {
    var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)),
        e = Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3,
        k = Math.pow(10, -e),
        prefix = prefixes[8 + e / 3];
    return function(value) {
      return f(k * value) + prefix;
    };
  }
3440
  return {
    format: newFormat,
    formatPrefix: formatPrefix
  };
}
3446
var locale;
var format;
var formatPrefix;
3450
defaultLocale({
  decimal: ".",
  thousands: ",",
  grouping: [3],
  currency: ["$", ""],
  minus: "-"
});
3458
function defaultLocale(definition) {
  locale = formatLocale(definition);
  format = locale.format;
  formatPrefix = locale.formatPrefix;
  return locale;
}
3465
function precisionFixed(step) {
  return Math.max(0, -exponent(Math.abs(step)));
}
3469
function precisionPrefix(step, value) {
  return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3 - exponent(Math.abs(step)));
}
3473
function precisionRound(step, max) {
  step = Math.abs(step), max = Math.abs(max) - step;
  return Math.max(0, exponent(max) - exponent(step)) + 1;
}
3478
function tickFormat(domain, count, specifier) {
  var start = domain[0],
      stop = domain[domain.length - 1],
      step = tickStep(start, stop, count == null ? 10 : count),
      precision;
  specifier = formatSpecifier(specifier == null ? ",f" : specifier);
  switch (specifier.type) {
    case "s": {
      var value = Math.max(Math.abs(start), Math.abs(stop));
      if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;
      return formatPrefix(specifier, value);
    }
    case "":
    case "e":
    case "g":
    case "p":
    case "r": {
      if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e");
      break;
    }
    case "f":
    case "%": {
      if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2;
      break;
    }
  }
  return format(specifier);
}
3507
function linearish(scale) {
  var domain = scale.domain;
3510
  scale.ticks = function(count) {
    var d = domain();
    return ticks(d[0], d[d.length - 1], count == null ? 10 : count);
  };
3515
  scale.tickFormat = function(count, specifier) {
    return tickFormat(domain(), count, specifier);
  };
3519
  scale.nice = function(count) {
    if (count == null) count = 10;
3522
    var d = domain(),
        i0 = 0,
        i1 = d.length - 1,
        start = d[i0],
        stop = d[i1],
        step;
3529
    if (stop < start) {
      step = start, start = stop, stop = step;
      step = i0, i0 = i1, i1 = step;
    }
3534
    step = tickIncrement(start, stop, count);
3536
    if (step > 0) {
      start = Math.floor(start / step) * step;
      stop = Math.ceil(stop / step) * step;
      step = tickIncrement(start, stop, count);
    } else if (step < 0) {
      start = Math.ceil(start * step) / step;
      stop = Math.floor(stop * step) / step;
      step = tickIncrement(start, stop, count);
    }
3546
    if (step > 0) {
      d[i0] = Math.floor(start / step) * step;
      d[i1] = Math.ceil(stop / step) * step;
      domain(d);
    } else if (step < 0) {
      d[i0] = Math.ceil(start * step) / step;
      d[i1] = Math.floor(stop * step) / step;
      domain(d);
    }
3556
    return scale;
  };
3559
  return scale;
}
3562
function linear() {
  var scale = continuous(deinterpolateLinear, reinterpolate);
3565
  scale.copy = function() {
    return copy(scale, linear());
  };
3569
  return linearish(scale);
}
3572
var VERSION = "1.4.2";
3574
function Slider(selector) {
	this.container = d3_select(selector);
3577
	this._width = null;
	this._height = null;
3580
	this._handleRadius = 15;
	this._channelHeight = 5;
	this._channelRadius = null;
3584
	this._handleFill = "black";
	this._channelFill = "#eee";
3587
	this._margin = { top: null, left: null, right: null };
3589
	this._domain = [0, 1];
	this._value = null;
	this._snap = false;
3593
	this._scale = null;
	this._axis = false;
	this._ticks = null;
	this._tickFormat = null;
	this._tickSize = null;
3599
	this._label = null;
	this._labelSize = 18;
3602
	this._startLabel = null;
	this._startLabelBelow = false;
3605
	this._endLabel = null;
	this._endLabelBelow = false;
3608
	this._startEndLabelSize = 16;
3610
	this.handlers = { "change": [] };
}
3613
// Create accessor methods for all the _parameters defined by the constructor
function accessor(k) {
	if (k.length > 0 && k.charAt(0) == "_") {
		Slider.prototype[k.substr(1)] = function(v) {
			if (typeof v == "undefined") return this[k];
			this[k] = v;
			return this;
		};
	}
}
var s = new Slider();
for (var k in s) {
	accessor(k);
}
3628
// Special accessor function for margin
Slider.prototype.margin = function Slider_margin(options) {
	if (!options) return this._margin;
	for (k in options) {
		if (k in this._margin) this._margin[k] = options[k];
		else throw "Slider.margin: unrecognised option " + k;
	}
	return this;
};
3638
// Attach event handlers
Slider.prototype.on = function Slider_on(event, handler) {
	if (!(event in this.handlers)) throw "Slider.on: No such event: " + event;
	this.handlers[event].push(handler);
	return this;
};
3645
// Fire event
Slider.prototype.fire = function Slider_fire(event, d) {
	if (!(event in this.handlers)) throw "Slider.fire: No such event: " + event;
	var handlers = this.handlers[event];
	for (var i = 0; i < handlers.length; i++) {
		handlers[i].call(this, d);
	}
	return this;
};
3655
// Binary search
function closestValue(sorted_list, value, a, b) {
	if (typeof a === "undefined") a = 0;
	if (typeof b === "undefined") b = sorted_list.length;
3660
	if (b-a == 0) return value;
	if (b-a == 1) return sorted_list[a];
	if (b-a == 2) {
		var d1 = Math.abs(sorted_list[a] - value),
		    d2 = Math.abs(sorted_list[a+1] - value);
		if (d1 <= d2) return sorted_list[a];
		else return sorted_list[a+1];
	}
3669
	var mid = a + Math.floor((b-a) / 2),
	    mid_v = sorted_list[mid],
	    pre = mid - 1,
	    pre_v = sorted_list[pre];
	if (pre_v <= value && value <= mid_v) {
		return (Math.abs(pre_v - value) <= Math.abs(mid_v - value)) ? pre_v : mid_v;
	}
	if (mid_v <= value) return closestValue(sorted_list, value, mid, b);
	else return closestValue(sorted_list, value, a, mid);
}
3680
function snapTo(specification, value) {
	if (typeof specification == "boolean") {
		return specification ? Math.round(value) : value;
	}
	// Otherwise assume “specification” is a sorted array
	return closestValue(specification, value);
}
3688
// Draw or update the slider
Slider.prototype.draw = function Slider_draw() {
	var that = this;
3692
	var cw = this._width,
	    ch = this._height;
3695
	var container_node = this.container.node();
3697
	// If the width and height have not been specified, use
	// the client size of the container element.
	if (!cw) {
		var r = container_node.getBoundingClientRect();
		// If there isn’t a bounding client rect, e.g. because
		// the container is display: none;, then do nothing.
		if (!r || r.width == 0) return this;
3705
		cw = r.width;
		ch = r.height;
	}
3709
	var channel_r = this._channelRadius == null ? this._channelHeight/2 : this._channelRadius,
	    left_margin = (this._margin.left == null ? Math.max(this._handleRadius, channel_r) : this._margin.left),
	    right_margin = (this._margin.right == null ? Math.max(this._handleRadius, channel_r) : this._margin.right),
	    top_margin = this._margin.top == null ? Math.max(this._handleRadius, this._channelHeight/2) : this._margin.top,
	    w = cw - left_margin - right_margin, // Inner width of the slider channel (excluding endcaps)
	    channel_w = w + 2*channel_r, // Width of the slider channel (including endcaps)
	    label_h = this._labelSize * 1.5;
3717
	if (this._label != null && this._margin.top == null) top_margin += label_h;
3719
	var slider;
	if (container_node.namespaceURI == "http://www.w3.org/2000/svg") {
		slider = this.container;
	}
	else {
		slider = this.container.selectAll("svg").data([{ width: cw, height: ch }]);
		slider.exit().remove();
		slider = slider.enter().append("svg").merge(slider);
		slider.attr("width", function(d) { return d.width; })
			.attr("height", function(d) { return d.height; });
	}
3731
	var g = slider.selectAll("g.slider-container").data([{left: left_margin, top: top_margin, id: this._id}]);
	g.exit().remove();
	g = g.enter().append("g").attr("class", "slider-container").merge(g);
	g.attr("transform", function(d) {
		return "translate(" + d.left + "," + d.top + ")";
	})
	.attr("id", function(d) { return d.id; });
3739
	this.scale = (this._scale ? this._scale() : linear()).domain(this._domain).range([0, w]);
3741
	if (this._value == null || this._value < this._domain[0]) this._value = this._domain[0];
	else if (this._value > this._domain[1]) this._value = this._domain[1];
3744
	if (this._snap) this._value = snapTo(this._snap, this._value);
3746
	var axes_data = [];
	if (this._axis) {
		var axis;
		if (typeof this._axis != "boolean") {
			axis = this._axis(this.scale);
		}
		else {
			axis = axisBottom().scale(this.scale).tickPadding(6);
		}
3756
		if (this._ticks) axis.ticks(this._ticks);
		if (this._tickFormat) axis.tickFormat(this._tickFormat);
		if (this._tickSize) axis.tickSize(this._tickSize);
		else axis.tickSize(Math.max(5, this._handleRadius - this._channelHeight - 2));
		axes_data.push(axis);
	}
3763
	var axes = g.selectAll(".slider-axis");
	var axes_enter = axes.data(axes_data).enter();
	axes_enter.append("g").attr("class", "slider-axis")
		.attr("transform", "translate(" + 0 + "," + this._channelHeight/2 + ")")
		.each(function(axis) { axis(d3_select(this)); });
	axes_enter.select(".domain").attr("fill", "none");
	axes_enter.selectAll(".tick line").attr("stroke", "black");
	axes_enter.exit().remove();
3772
	var channel, handle;
	channel = g.selectAll(".slider-channel")
		.data([{ width: channel_w, height: this._channelHeight, channel_r: channel_r }]);
	channel.exit().remove();
3777
	channel = channel.enter().append("rect").attr("class", "slider-channel")
		.attr("cursor", "pointer")
		.on("click", function() {
			var slider_x = Math.max(0, Math.min(w, d3_mouse(this)[0]));
			that._value = that.scale.invert(slider_x);
			if (that._snap) that._value = snapTo(that._snap, that._value);
			handle.attr("cx", that.scale(that._value));
			that.fire("change", that._value);
		})
		.merge(channel);
3788
	channel.attr("width", function(d) { return d.width; })
		.attr("fill", this._channelFill)
		.attr("height", function(d) { return d.height; })
		.attr("y", function(d) { return -d.height/2; })
		.attr("x", function(d) { return -d.channel_r; })
		.attr("rx", function(d) { return d.channel_r; });
3795
	var drag_dx_origin, drag_x_origin;
	function handleMousedown(event) {
		document.addEventListener("mouseup", handleMouseup, false);
		document.addEventListener("mousemove", handleMousemove, false);
		drag_dx_origin = event.clientX;
		drag_x_origin = that.scale(that._value);
	}
3803
	function handleMouseup() {
		document.removeEventListener("mouseup", handleMouseup, false);
		document.removeEventListener("mousemove", handleMousemove, false);
	}
3808
	function handleMousemove(event) {
		drag(event.clientX - drag_dx_origin);
	}
3812
	function handleTouchstart(event) {
		if (event.touches.length != 1) return;
		document.addEventListener("touchend", handleTouchend, false);
		document.addEventListener("touchmove", handleTouchmove, false);
		drag_dx_origin = event.touches[0].clientX;
		drag_x_origin = that.scale(that._value);
	}
3820
	function handleTouchend() {
		document.removeEventListener("touchend", handleTouchend, false);
		document.removeEventListener("touchmove", handleTouchmove, false);
	}
3825
	function handleTouchmove(event) {
		if (event.touches.length != 1) return;
		drag(event.touches[0].clientX - drag_dx_origin);
	}
3830
	function drag(dx) {
		var new_x = drag_x_origin + dx;
		var slider_x = Math.max(0, Math.min(w, new_x));
		var new_value = that.scale.invert(slider_x);
		if (that._snap) new_value = snapTo(that._snap, new_value);
		handle.attr("cx", that.scale(new_value));
		if (new_value != that._value) {
			that._value = new_value;
			that.fire("change", that._value);
		}
	}
3842
	handle = g.selectAll(".slider-handle").data([{ v: this._value, x: this.scale(this._value) }]);
	handle = handle.enter().append("circle").attr("class", "slider-handle")
		.attr("cursor", "col-resize")
		.merge(handle);
3847
	handle.attr("cx", function(d) { return d.x; })
		.attr("r", this._handleRadius)
		.attr("fill", this._handleFill)
		.on("mousedown", function() {
			event.preventDefault();
			handleMousedown(event);
		})
		.on("touchstart", function() {
			event.preventDefault();
			handleTouchstart(event);
		});
3859
	var label_data = [];
	if (this._label) {
		label_data.push({
			label: this._label, x: w/2, y: -label_h, font_size: this._labelSize
		});
	}
	var label = g.selectAll(".slider-label").data(label_data);
	label.exit().remove();
	label = label.enter()
		.append("text").attr("class", "slider-label")
		.attr("text-anchor", "middle")
		.attr("cursor", "default")
		.merge(label);
3873
	label
		.text(function(d) { return d.label; })
		.attr("x", function(d) { return d.x; })
		.attr("y", function(d) { return d.y; })
		.attr("font-size", this._labelSize);
3879
	var end_label_data = [];
	if (this._startLabel) {
		end_label_data.push({
			label: this._startLabel,
			x: this._startLabelBelow ? 0 : -(channel_r + 5 + Math.max(0, this._handleRadius - channel_r)),
			y: this._startLabelBelow ? (channel_r + 15) : this._startEndLabelSize/1.75 - channel_r/2,
			anchor: this._startLabelBelow ? "middle" : "end",
			font_size: this._startEndLabelSize
		});
	}
	if (this._endLabel) {
		end_label_data.push({
			label: this._endLabel,
			x: this._endLabelBelow ? w : w + (channel_r + Math.max(0, this._handleRadius - channel_r) + 5),
			y: this._startLabelBelow ? (channel_r + 15) : this._startEndLabelSize/1.75 - channel_r/2,
			anchor: this._endLabelBelow ? "middle" : "start",
			font_size: this._startEndLabelSize
		});
	}
3899
	var end_labels = g.selectAll(".slider-end-labels").data(end_label_data);
	end_labels.exit().remove();
	end_labels = end_labels.enter().append("text").attr("class", "slider-end-labels")
		.attr("pointer-events", "none")
		.merge(end_labels);
	end_labels
		.text(function(d) { return d.label; })
		.attr("font-size", function(d) { return d.font_size; })
		.attr("x", function(d) { return d.x; })
		.attr("y", function(d) { return d.y; })
		.attr("text-anchor", function(d) { return d.anchor; });
3911
	return this;
};
3914
Slider.prototype.update = Slider.prototype.draw;
3916
function Flourish_slider(selector) {
	return new Slider(selector);
}
Flourish_slider.version = VERSION;
3921
function createPlayButton(colour) {
	var start_string = '<svg width="25px" height="30px" viewBox="0 0 25 30"> <polygon fill="';
	var end_string = '" stroke="none" points="25 15 0 30 0 0"></polygon> </svg>';
	return start_string + colour + end_string;
}
3927
function createPauseButton(colour) {
	var start_string = '<svg width="26px" height="30px" viewBox="0 0 26 30"> <g stroke="none" stroke-width="1" fill="';
	var end_string = '"><rect x="2" y="2" width="9" height="26"></rect> <rect x="15" y="2" width="9" height="26"></rect> </g> </svg>';
	return start_string + colour + end_string;
}
3933
function createSlider(control_obj, state, container) {
	var slider_obj = {};
	var slider_holder = select(container).append("div").attr("class", "fl-control fl-control-slider animatable");
	var slider_play_button = slider_holder.append("div").attr("class", "slider-play");
	var slider_div = slider_holder.append("div").attr("class", "fl-controls-slider");
3939
	var play_string, pause_string, handle_color;
	var sorted_options, timesteps, is_playing;
	var timer_id = null;
3943
	var clearTimer = function() {
		clearTimeout(timer_id);
		timer_id = null;
	};
3948
	var sliderChangeFunction = function(i) {
		var d = sorted_options[i];
		if (d.options_index === control_obj.index()) return;
		control_obj.index(d.options_index);
		control_obj.trigger("change");
	};
3955
	var slider = Flourish_slider(slider_div.node())
		.snap(true)
		.on("change", function(d) {
			var is_playing = timer_id !== null;
			if (is_playing) clearTimer();
			sliderChangeFunction(d);
			if (is_playing) setNextTick();
		});
3964
3965
	var stopSliderPlayer = function() {
		clearTimer();
		slider_holder.classed("playing", false);
		slider_play_button.html(play_string);
		control_obj._isPlaying_(false);
		is_playing = false;
	};
3973
3974
	var setNextTick = function() {
		var current_index = control_obj.getSortedIndex();
		var current_delay = timesteps[current_index];
		var final_index = control_obj.n_options - 1;
		var next_index = current_index < final_index ? current_index + 1 : 0;
3980
		timer_id = setTimeout(function() {
			sliderChangeFunction(next_index);
			if (state.slider_loop || next_index < final_index) setNextTick();
			else stopSliderPlayer();
		}, current_delay);
	};
3987
3988
	var startSliderPlayer = function() {
		slider_holder.classed("playing", true);
		slider_play_button.html(pause_string);
		setNextTick();
		control_obj._isPlaying_(true);
		is_playing = true;
	};
3996
3997
	slider_play_button.on("click", function() {
		if (timer_id === null) startSliderPlayer();
		else stopSliderPlayer();
	});
4002
4003
	var setWidths = function() {
		var handle_radius = Math.round(remToPx(state.slider_handle_height) / 2);
		slider_holder.style("width", Math.round(remToPx(state.slider_width)) + "px");
		slider_play_button
			.style("height", handle_radius * 2 + "px")
			.style("width", handle_radius * 2 + "px")
			.style("display", state.slider_play_button ? null : "none");
		var holder_width = slider_holder.node().getBoundingClientRect().width;
		var button_width = slider_play_button.node().getBoundingClientRect().width;
		slider_div
			.style("width", Math.max((holder_width - button_width), 1) + "px")
			.style("height", handle_radius * 2 + "px");
4016
		slider
			.handleRadius(handle_radius)
			.margin({
				left: handle_radius + 5,
				right: handle_radius + remToPx(state.slider_margin),
				top: handle_radius
			});
	};
4025
4026
	var setHandles = function() {
		if (state.slider_play_button) {
			slider_holder.classed("animatable", true);
		}
		else {
			stopSliderPlayer();
			slider_holder.classed("animatable", false);
		}
		if (handle_color !== state.slider_handle_color) {
			slider.update(); // Make sure slider-handle actually exists before changing its colour
			handle_color = state.slider_handle_color || "currentColor";
			slider_holder.select(".slider-handle").style("fill", handle_color);
			play_string = createPlayButton(handle_color);
			pause_string = createPauseButton(handle_color);
			slider_play_button.html(timer_id ? pause_string : play_string);
		}
	};
4044
4045
	var showControl = function() {
		slider_holder.style("display", "inline-flex");
		setWidths();
		setHandles();
		return slider_obj;
	};
4052
	var hideControl = function() {
		stopSliderPlayer();
		slider_holder.style("display", "none");
		return slider_obj;
	};
4058
	slider_obj.show = showControl;
	slider_obj.hide = hideControl;
4061
4062
	slider_obj.update = function(_sorted_options) {
		sorted_options = _sorted_options;
		if (!control_obj.n_options || state.control_type !== "slider") {
			hideControl();
			return slider_obj;
		}
4069
		showControl();
4071
		var n_options = control_obj.n_options;
		var loop = state.slider_loop;
4074
		timesteps = sorted_options.map(function(d, i) {
			var dur_in_seconds = state.slider_step_time + (loop && i === (n_options -1) ? state.slider_restart_pause : 0);
			return dur_in_seconds * 1000;
		});
4079
		var sorted_index = control_obj.getSortedIndex();
		var d = sorted_options[sorted_index];
4082
		slider.domain([0, n_options - 1])
			.value(sorted_index)
			.endLabel(d.display)
			.channelHeight(Math.round(remToPx(state.slider_track_height)))
			.channelFill(state.slider_background_color)
			.update();
4089
		slider.container.select("svg").attr("fill", "currentColor");
4091
		slider_div.select("text.slider-end-labels")
			.style("fill", state.slider_font_color)
			.attr("y", "0")
			.attr("dy", "0.25em");
4096
4097
		if (control_obj._isPlaying_() && !is_playing) startSliderPlayer();
		else if (!control_obj._isPlaying_() && is_playing) stopSliderPlayer();
4100
		return slider_obj;
	};
4103
4104
	return slider_obj;
}
4107
var DEFAULTS$1 = Object.freeze({
	alignment: "start",
	controls_spacing: 1,
});
4112
function controlsContainer(state_) {
	this._state = state_;
	for (var key in DEFAULTS$1) { if (this._state[key] === undefined) this._state[key] = DEFAULTS$1[key]; }
	return this;
}
4118
controlsContainer.prototype.appendTo = function (container_) {
	this._container = select(container_).append("div").node();
	return this;
};
4123
controlsContainer.prototype.add = function (controls) {
	this._controls = Array.isArray(controls) ? controls : [controls];
4126
	this._controls.forEach(function(control) {
		if (control && typeof control.appendTo === "function") control.appendTo(this._container);
		else console.warn("Please pass valid controls instances to .add()");
	}, this);
4131
	return this;
};
4134
controlsContainer.prototype.update = function () {
	this._controls.forEach(function(control) {
		if (control && typeof control.update == "function") control.update();
	});
4139
	var alignment = this._state.alignment;
	var flex_alignment = alignment == "center" ? alignment : "flex-" + alignment;
4142
	var template = window.template || undefined;
	var layout = template ? template.state.layout : undefined;
	var read_direction = (layout && layout.read_direction) || select("body").node().dir || "ltr";
	// This flips the controls container margins if read direction is set to right-to-left
	// Flex alignment is not flipped in order to match the behaviour of the legend
	var alignment_for_margins = alignment;
	if (read_direction === "rtl" && alignment !== "center") {
		alignment_for_margins = alignment === "start" ? "end" : "start";
	}
4152
	select(this._container)
		.style("display", "flex")
		.style("flex-wrap", "wrap")
		.style("justify-content", flex_alignment);
4157
	var individual_controls_container = select(this._container)
		.selectAll(".fl-controls-container");
4160
	var controls_spacing = this._state.controls_spacing;
	var margin_left;
	var margin_right;
	switch (alignment_for_margins) {
		case "end":
			margin_left = controls_spacing + "em";
			margin_right = 0;
			break;
		case "center":
			margin_left = controls_spacing * 0.5 + "em";
			margin_right = controls_spacing * 0.5 + "em";
			break;
		case "start":
		default:
			margin_left = 0;
			margin_right = controls_spacing + "em";
			break;
	}
4179
	individual_controls_container
		.style("margin-left", margin_left)
		.style("margin-right", margin_right);
4183
	return this;
};
4186
var DEFAULTS = Object.freeze({
	control_type: "dropdown",
	control_title: "",
4190
	// Dropdown
	dropdown_width_mode: "auto",
	dropdown_width_fixed: 20,
4194
	// Buttons
	button_group: true,
	button_group_width_mode: "fixed",
	button_group_width_fixed: 20,
4199
	// Slider
	slider_width: 15,
	slider_handle_color: null,
	slider_font_color: null,
	slider_background_color: "#dddddd",
4205
	slider_handle_height: 1,
	slider_track_height: 0.2,
	slider_margin: 4.5,
4209
	slider_play_button: true,
	slider_step_time: 2,
	slider_loop: true,
	slider_restart_pause: 0,
4214
	// Data typing
	sort: false,
4217
	_index_: null,
	_is_playing_: false
});
4221
function defaultParser(x) {
	return x;
}
4225
function defaultFormatter(x) {
	return x == null ? "" : x.toString();
}
4229
function createControls(state) {
	var control_obj = {};
	var parser = defaultParser;
	var formatter = defaultFormatter;
	var options = [];
	var sorted_options = [];
	var changeHandlers = [];
	var container = document.createElement("div");
	container.setAttribute("class", "fl-controls-container");
	var container_title = select(container).append("div").attr("class", "fl-controls-title");
	var dropdown_obj = createDropdown(control_obj, state, container);
	var buttons_obj = createButtons(control_obj, state, container);
	var slider_obj = createSlider(control_obj, state, container);
4243
	for (var key in DEFAULTS) {
		if (state[key] === undefined) state[key] = DEFAULTS[key];
	}
4247
	var current_index = state._index_;
4249
	var checkValidIndex = function(i) {
		return options.length && i >= 0 && i < options.length;
	};
4253
	var updateControls = function(sorted_options) {
		container.style.display = (sorted_options.length > 1) ? null : "none";
		container.style.width = "";
		container_title.node().innerHTML = state.control_title;
		container_title.node().style.display = (state.control_title === "") ? "none" : "inline-block";
		slider_obj.update(sorted_options); // Do slider first in case we're stopping playing
		dropdown_obj.update(sorted_options);
		buttons_obj.update(sorted_options);
	};
4263
	control_obj.appendTo = function(parent_container) {
		injectCSS();
		select(parent_container).node().appendChild(container);
		return control_obj;
	};
4269
	var callOnChangeCallbacks = function() {
		var index = indexFunction();
		var value = options[index];
		changeHandlers.forEach(function(func) {
			func(value, index);
		});
		return control_obj;
	};
4278
	control_obj.remove = function() {
		if (container.parentElement) container.parentElement.removeChild(container);
		return control_obj;
	};
4283
	control_obj.options = function(arr) {
		if (arr === undefined) return options.slice();
		if (!Array.isArray(arr)) return control_obj;
		options = arr.slice();
		var n = options.length;
		var i = indexFunction();
		if (!n) indexFunction(null);
		else if (i === null || i >= n) indexFunction(0);
		return control_obj;
	};
4294
	Object.defineProperty(control_obj, "n_options", { get: function() { return options.length; } });
4296
4297
	var indexFunction = function(i) {
		if (i === undefined) {
			if (!state._is_playing_) current_index = state._index_;
			return current_index;
		}
		if (i === null || checkValidIndex(i)) {
			current_index = i;
			if (!state._is_playing_) state._index_ = current_index;
		}
		else console.warn("Invalid index, ignoring update call");
		return control_obj;
	};
	control_obj.index = indexFunction;
4311
	control_obj.getSortedIndex = function() {
		var options_index = indexFunction();
		if (state.sort == "unsorted") return options_index;
		var sorted_index;
		sorted_options.some(function(d, i) {
			if (d.options_index === options_index) {
				sorted_index = i;
				return true;
			}
		});
		return sorted_index;
	};
4324
	control_obj.value = function(value) {
		if (value === undefined) return options[indexFunction()];
		var index = options.indexOf(value);
		if (index !== -1) indexFunction(index);
		return control_obj;
	};
4331
	control_obj.on = function(event, callback) {
		if (event === "change") changeHandlers.push(callback.bind(control_obj));
		return control_obj;
	};
4336
	control_obj.parser = function (value) {
		if (value === undefined) return parser;
		if (value === null) parser = defaultParser;
		else parser = value;
		return control_obj;
	};
4343
	control_obj.formatter = function (value) {
		if (value === undefined) return formatter;
		if (value === null) formatter = defaultFormatter;
		else formatter = value;
		return control_obj;
	};
4350
	control_obj.update = function() {
		getRemToPx();
		sorted_options = sortArray(options, state.sort, parser, formatter);
		updateControls(sorted_options);
		return control_obj;
	};
4357
	control_obj.trigger = function(event) {
		if (event === "change") callOnChangeCallbacks();
		return control_obj;
	};
4362
	control_obj.getNode = function() {
		return container;
	};
4366
	var isPlaying = function(is_playing) {
		if (is_playing === undefined) return state._is_playing_;
		state._is_playing_ = !!is_playing;
		if (!is_playing) indexFunction(current_index); // Force _index_ to match current index
	};
4372
	control_obj._isPlaying_ = isPlaying;
4374
	return control_obj;
}
4377
function createControlsContainer(state) {
	return new controlsContainer(state);
}
4381
exports.createControls = createControls;
exports.createControlsContainer = createControlsContainer;
4384
Object.defineProperty(exports, '__esModule', { value: true });
4386
4387})));
1	`(function (global, factory) {`
2	`typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :`
3	`typeof define === 'function' && define.amd ? define(['exports'], factory) :`
4	`(global = typeof globalThis !== 'undefined' ? globalThis : global \|\| self, factory(global.controls = {}));`
5	`}(this, (function (exports) { 'use strict';`
6
7	`var xhtml$1 = "http://www.w3.org/1999/xhtml";`
8
9	`var namespaces$1 = {`
10	`svg: "http://www.w3.org/2000/svg",`
11	`xhtml: xhtml$1,`
12	`xlink: "http://www.w3.org/1999/xlink",`
13	`xml: "http://www.w3.org/XML/1998/namespace",`
14	`xmlns: "http://www.w3.org/2000/xmlns/"`
15	`};`
16
17	`function namespace$1(name) {`
18	`var prefix = name += "", i = prefix.indexOf(":");`
19	`if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);`
20	`return namespaces$1.hasOwnProperty(prefix) ? {space: namespaces$1[prefix], local: name} : name;`
21	`}`
22
23	`function creatorInherit$1(name) {`
24	`return function() {`
25	`var document = this.ownerDocument,`
26	`uri = this.namespaceURI;`
27	`return uri === xhtml$1 && document.documentElement.namespaceURI === xhtml$1`
28	`? document.createElement(name)`
29	`: document.createElementNS(uri, name);`
30	`};`
31	`}`
32
33	`function creatorFixed$1(fullname) {`
34	`return function() {`
35	`return this.ownerDocument.createElementNS(fullname.space, fullname.local);`
36	`};`
37	`}`
38
39	`function creator$1(name) {`
40	`var fullname = namespace$1(name);`