1 | import { Transform, ingest, tupleid, stableCompare } from 'vega-dataflow';
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2 | import { tickCount, tickFormat, validTicks, tickValues, SymbolLegend, labelFormat, labelValues, GradientLegend, scaleFraction, labelFraction, scale, isContinuous, Sequential, Linear, Time, UTC, Pow, Sqrt, Ordinal, scaleImplicit, Log, Symlog, isLogarithmic, BinOrdinal, bandSpace, isInterpolating, interpolateRange, quantizeInterpolator, interpolateColors, interpolate, Band, Point, scheme, Threshold, Quantile, Quantize, Diverging } from 'vega-scale';
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3 | import { inherits, isArray, error, fastmap, falsy, isFunction, constant, peek, one, toSet, isString, zoomLog, zoomPow, zoomSymlog, zoomLinear, stringValue } from 'vega-util';
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4 | import { sum, range } from 'd3-array';
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5 | import { interpolateRound, interpolate as interpolate$1 } from 'd3-interpolate';
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6 |
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7 |
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8 |
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9 |
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10 |
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11 |
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12 |
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13 |
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14 |
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15 |
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16 |
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17 |
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18 |
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19 |
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20 |
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21 |
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22 |
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23 |
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24 | function AxisTicks(params) {
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25 | Transform.call(this, null, params);
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26 | }
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27 | inherits(AxisTicks, Transform, {
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28 | transform(_, pulse) {
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29 | if (this.value && !_.modified()) {
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30 | return pulse.StopPropagation;
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31 | }
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32 |
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33 | var locale = pulse.dataflow.locale(),
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34 | out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
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35 | ticks = this.value,
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36 | scale = _.scale,
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37 | tally = _.count == null ? _.values ? _.values.length : 10 : _.count,
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38 | count = tickCount(scale, tally, _.minstep),
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39 | format = _.format || tickFormat(locale, scale, count, _.formatSpecifier, _.formatType, !!_.values),
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40 | values = _.values ? validTicks(scale, _.values, count) : tickValues(scale, count);
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41 | if (ticks) out.rem = ticks;
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42 | ticks = values.map((value, i) => ingest({
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43 | index: i / (values.length - 1 || 1),
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44 | value: value,
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45 | label: format(value)
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46 | }));
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47 |
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48 | if (_.extra && ticks.length) {
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49 |
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50 |
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51 | ticks.push(ingest({
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52 | index: -1,
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53 | extra: {
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54 | value: ticks[0].value
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55 | },
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56 | label: ''
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57 | }));
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58 | }
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59 |
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60 | out.source = ticks;
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61 | out.add = ticks;
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62 | this.value = ticks;
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63 | return out;
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64 | }
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65 |
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66 | });
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67 |
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68 |
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69 |
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70 |
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71 |
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72 |
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73 |
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74 |
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75 |
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76 | function DataJoin(params) {
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77 | Transform.call(this, null, params);
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78 | }
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79 |
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80 | function defaultItemCreate() {
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81 | return ingest({});
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82 | }
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83 |
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84 | function newMap(key) {
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85 | const map = fastmap().test(t => t.exit);
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86 |
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87 | map.lookup = t => map.get(key(t));
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88 |
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89 | return map;
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90 | }
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91 |
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92 | inherits(DataJoin, Transform, {
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93 | transform(_, pulse) {
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94 | var df = pulse.dataflow,
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95 | out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
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96 | item = _.item || defaultItemCreate,
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97 | key = _.key || tupleid,
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98 | map = this.value;
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99 |
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100 |
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101 | if (isArray(out.encode)) {
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102 | out.encode = null;
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103 | }
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104 |
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105 | if (map && (_.modified('key') || pulse.modified(key))) {
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106 | error('DataJoin does not support modified key function or fields.');
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107 | }
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108 |
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109 | if (!map) {
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110 | pulse = pulse.addAll();
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111 | this.value = map = newMap(key);
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112 | }
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113 |
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114 | pulse.visit(pulse.ADD, t => {
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115 | const k = key(t);
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116 | let x = map.get(k);
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117 |
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118 | if (x) {
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119 | if (x.exit) {
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120 | map.empty--;
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121 | out.add.push(x);
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122 | } else {
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123 | out.mod.push(x);
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124 | }
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125 | } else {
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126 | x = item(t);
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127 | map.set(k, x);
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128 | out.add.push(x);
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129 | }
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130 |
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131 | x.datum = t;
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132 | x.exit = false;
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133 | });
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134 | pulse.visit(pulse.MOD, t => {
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135 | const k = key(t),
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136 | x = map.get(k);
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137 |
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138 | if (x) {
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139 | x.datum = t;
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140 | out.mod.push(x);
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141 | }
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142 | });
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143 | pulse.visit(pulse.REM, t => {
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144 | const k = key(t),
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145 | x = map.get(k);
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146 |
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147 | if (t === x.datum && !x.exit) {
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148 | out.rem.push(x);
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149 | x.exit = true;
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150 | ++map.empty;
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151 | }
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152 | });
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153 | if (pulse.changed(pulse.ADD_MOD)) out.modifies('datum');
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154 |
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155 | if (pulse.clean() || _.clean && map.empty > df.cleanThreshold) {
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156 | df.runAfter(map.clean);
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157 | }
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158 |
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159 | return out;
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160 | }
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161 |
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162 | });
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163 |
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164 |
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165 |
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166 |
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167 |
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168 |
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169 |
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170 |
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171 |
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172 |
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173 |
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174 |
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175 |
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176 |
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177 | function Encode(params) {
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178 | Transform.call(this, null, params);
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179 | }
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180 | inherits(Encode, Transform, {
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181 | transform(_, pulse) {
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182 | var out = pulse.fork(pulse.ADD_REM),
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183 | fmod = _.mod || false,
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184 | encoders = _.encoders,
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185 | encode = pulse.encode;
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186 |
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187 |
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188 |
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189 | if (isArray(encode)) {
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190 | if (out.changed() || encode.every(e => encoders[e])) {
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191 | encode = encode[0];
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192 | out.encode = null;
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193 | } else {
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194 | return pulse.StopPropagation;
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195 | }
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196 | }
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197 |
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198 |
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199 | var reenter = encode === 'enter',
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200 | update = encoders.update || falsy,
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201 | enter = encoders.enter || falsy,
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202 | exit = encoders.exit || falsy,
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203 | set = (encode && !reenter ? encoders[encode] : update) || falsy;
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204 |
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205 | if (pulse.changed(pulse.ADD)) {
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206 | pulse.visit(pulse.ADD, t => {
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207 | enter(t, _);
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208 | update(t, _);
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209 | });
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210 | out.modifies(enter.output);
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211 | out.modifies(update.output);
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212 |
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213 | if (set !== falsy && set !== update) {
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214 | pulse.visit(pulse.ADD, t => {
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215 | set(t, _);
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216 | });
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217 | out.modifies(set.output);
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218 | }
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219 | }
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220 |
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221 | if (pulse.changed(pulse.REM) && exit !== falsy) {
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222 | pulse.visit(pulse.REM, t => {
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223 | exit(t, _);
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224 | });
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225 | out.modifies(exit.output);
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226 | }
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227 |
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228 | if (reenter || set !== falsy) {
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229 | const flag = pulse.MOD | (_.modified() ? pulse.REFLOW : 0);
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230 |
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231 | if (reenter) {
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232 | pulse.visit(flag, t => {
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233 | const mod = enter(t, _) || fmod;
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234 | if (set(t, _) || mod) out.mod.push(t);
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235 | });
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236 | if (out.mod.length) out.modifies(enter.output);
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237 | } else {
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238 | pulse.visit(flag, t => {
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239 | if (set(t, _) || fmod) out.mod.push(t);
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240 | });
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241 | }
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242 |
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243 | if (out.mod.length) out.modifies(set.output);
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244 | }
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245 |
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246 | return out.changed() ? out : pulse.StopPropagation;
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247 | }
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248 |
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249 | });
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250 |
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251 | /**
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252 | * Generates legend entries for visualizing a scale.
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253 | * @constructor
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254 | * @param {object} params - The parameters for this operator.
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255 | * @param {Scale} params.scale - The scale to generate items for.
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256 | * @param {*} [params.count=5] - The approximate number of items, or
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257 | * desired tick interval, to use.
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258 | * @param {*} [params.limit] - The maximum number of entries to
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259 | * include in a symbol legend.
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260 | * @param {Array<*>} [params.values] - The exact tick values to use.
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261 | * These must be legal domain values for the provided scale.
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262 | * If provided, the count argument is ignored.
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263 | * @param {string} [params.formatSpecifier] - A format specifier
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264 | * to use in conjunction with scale.tickFormat. Legal values are
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265 | * any valid D3 format specifier string.
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266 | * @param {function(*):string} [params.format] - The format function to use.
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267 | * If provided, the formatSpecifier argument is ignored.
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268 | */
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269 |
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270 | function LegendEntries(params) {
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271 | Transform.call(this, [], params);
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272 | }
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273 | inherits(LegendEntries, Transform, {
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274 | transform(_, pulse) {
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275 | if (this.value != null && !_.modified()) {
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276 | return pulse.StopPropagation;
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277 | }
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278 |
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279 | var locale = pulse.dataflow.locale(),
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280 | out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
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281 | items = this.value,
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282 | type = _.type || SymbolLegend,
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283 | scale = _.scale,
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284 | limit = +_.limit,
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285 | count = tickCount(scale, _.count == null ? 5 : _.count, _.minstep),
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286 | lskip = !!_.values || type === SymbolLegend,
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287 | format = _.format || labelFormat(locale, scale, count, type, _.formatSpecifier, _.formatType, lskip),
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288 | values = _.values || labelValues(scale, count),
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289 | domain,
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290 | fraction,
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291 | size,
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292 | offset,
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293 | ellipsis;
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294 | if (items) out.rem = items;
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295 |
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296 | if (type === SymbolLegend) {
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297 | if (limit && values.length > limit) {
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298 | pulse.dataflow.warn('Symbol legend count exceeds limit, filtering items.');
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299 | items = values.slice(0, limit - 1);
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300 | ellipsis = true;
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301 | } else {
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302 | items = values;
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303 | }
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304 |
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305 | if (isFunction(size = _.size)) {
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306 |
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307 | if (!_.values && scale(items[0]) === 0) {
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308 | items = items.slice(1);
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309 | }
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310 |
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311 |
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312 | offset = items.reduce((max, value) => Math.max(max, size(value, _)), 0);
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313 | } else {
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314 | size = constant(offset = size || 8);
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315 | }
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316 |
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317 | items = items.map((value, index) => ingest({
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318 | index: index,
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319 | label: format(value, index, items),
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320 | value: value,
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321 | offset: offset,
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322 | size: size(value, _)
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323 | }));
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324 |
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325 | if (ellipsis) {
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326 | ellipsis = values[items.length];
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327 | items.push(ingest({
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328 | index: items.length,
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329 | label: "\u2026".concat(values.length - items.length, " entries"),
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330 | value: ellipsis,
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331 | offset: offset,
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332 | size: size(ellipsis, _)
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333 | }));
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334 | }
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335 | } else if (type === GradientLegend) {
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336 | domain = scale.domain(), fraction = scaleFraction(scale, domain[0], peek(domain));
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337 |
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338 |
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339 | if (values.length < 3 && !_.values && domain[0] !== peek(domain)) {
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340 | values = [domain[0], peek(domain)];
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341 | }
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342 |
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343 | items = values.map((value, index) => ingest({
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344 | index: index,
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345 | label: format(value, index, values),
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346 | value: value,
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347 | perc: fraction(value)
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348 | }));
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349 | } else {
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350 | size = values.length - 1;
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351 | fraction = labelFraction(scale);
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352 | items = values.map((value, index) => ingest({
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353 | index: index,
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354 | label: format(value, index, values),
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355 | value: value,
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356 | perc: index ? fraction(value) : 0,
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357 | perc2: index === size ? 1 : fraction(values[index + 1])
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358 | }));
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359 | }
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360 |
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361 | out.source = items;
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362 | out.add = items;
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363 | this.value = items;
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364 | return out;
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365 | }
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366 |
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367 | });
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368 |
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369 | const sourceX = t => t.source.x;
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370 |
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371 | const sourceY = t => t.source.y;
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372 |
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373 | const targetX = t => t.target.x;
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374 |
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375 | const targetY = t => t.target.y;
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376 |
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377 |
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378 |
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379 |
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380 |
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381 |
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382 |
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383 | function LinkPath(params) {
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384 | Transform.call(this, {}, params);
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385 | }
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386 | LinkPath.Definition = {
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387 | 'type': 'LinkPath',
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388 | 'metadata': {
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389 | 'modifies': true
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390 | },
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391 | 'params': [{
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392 | 'name': 'sourceX',
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393 | 'type': 'field',
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394 | 'default': 'source.x'
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395 | }, {
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396 | 'name': 'sourceY',
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397 | 'type': 'field',
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398 | 'default': 'source.y'
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399 | }, {
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400 | 'name': 'targetX',
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401 | 'type': 'field',
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402 | 'default': 'target.x'
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403 | }, {
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404 | 'name': 'targetY',
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405 | 'type': 'field',
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406 | 'default': 'target.y'
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407 | }, {
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408 | 'name': 'orient',
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409 | 'type': 'enum',
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410 | 'default': 'vertical',
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411 | 'values': ['horizontal', 'vertical', 'radial']
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412 | }, {
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413 | 'name': 'shape',
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414 | 'type': 'enum',
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415 | 'default': 'line',
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416 | 'values': ['line', 'arc', 'curve', 'diagonal', 'orthogonal']
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417 | }, {
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418 | 'name': 'require',
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419 | 'type': 'signal'
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420 | }, {
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421 | 'name': 'as',
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422 | 'type': 'string',
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423 | 'default': 'path'
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424 | }]
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425 | };
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426 | inherits(LinkPath, Transform, {
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427 | transform(_, pulse) {
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428 | var sx = _.sourceX || sourceX,
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429 | sy = _.sourceY || sourceY,
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430 | tx = _.targetX || targetX,
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431 | ty = _.targetY || targetY,
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432 | as = _.as || 'path',
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433 | orient = _.orient || 'vertical',
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434 | shape = _.shape || 'line',
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435 | path = Paths.get(shape + '-' + orient) || Paths.get(shape);
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436 |
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437 | if (!path) {
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438 | error('LinkPath unsupported type: ' + _.shape + (_.orient ? '-' + _.orient : ''));
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439 | }
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440 |
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441 | pulse.visit(pulse.SOURCE, t => {
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442 | t[as] = path(sx(t), sy(t), tx(t), ty(t));
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443 | });
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444 | return pulse.reflow(_.modified()).modifies(as);
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445 | }
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446 |
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447 | });
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448 |
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449 | const line = (sx, sy, tx, ty) => 'M' + sx + ',' + sy + 'L' + tx + ',' + ty;
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450 |
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451 | const lineR = (sa, sr, ta, tr) => line(sr * Math.cos(sa), sr * Math.sin(sa), tr * Math.cos(ta), tr * Math.sin(ta));
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452 |
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453 | const arc = (sx, sy, tx, ty) => {
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454 | var dx = tx - sx,
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455 | dy = ty - sy,
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456 | rr = Math.sqrt(dx * dx + dy * dy) / 2,
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457 | ra = 180 * Math.atan2(dy, dx) / Math.PI;
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458 | return 'M' + sx + ',' + sy + 'A' + rr + ',' + rr + ' ' + ra + ' 0 1' + ' ' + tx + ',' + ty;
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459 | };
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460 |
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461 | const arcR = (sa, sr, ta, tr) => arc(sr * Math.cos(sa), sr * Math.sin(sa), tr * Math.cos(ta), tr * Math.sin(ta));
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462 |
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463 | const curve = (sx, sy, tx, ty) => {
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464 | const dx = tx - sx,
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465 | dy = ty - sy,
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466 | ix = 0.2 * (dx + dy),
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467 | iy = 0.2 * (dy - dx);
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468 | return 'M' + sx + ',' + sy + 'C' + (sx + ix) + ',' + (sy + iy) + ' ' + (tx + iy) + ',' + (ty - ix) + ' ' + tx + ',' + ty;
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469 | };
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470 |
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471 | const curveR = (sa, sr, ta, tr) => curve(sr * Math.cos(sa), sr * Math.sin(sa), tr * Math.cos(ta), tr * Math.sin(ta));
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472 |
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473 | const orthoX = (sx, sy, tx, ty) => 'M' + sx + ',' + sy + 'V' + ty + 'H' + tx;
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474 |
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475 | const orthoY = (sx, sy, tx, ty) => 'M' + sx + ',' + sy + 'H' + tx + 'V' + ty;
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476 |
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477 | const orthoR = (sa, sr, ta, tr) => {
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478 | const sc = Math.cos(sa),
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479 | ss = Math.sin(sa),
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480 | tc = Math.cos(ta),
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481 | ts = Math.sin(ta),
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482 | sf = Math.abs(ta - sa) > Math.PI ? ta <= sa : ta > sa;
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483 | return 'M' + sr * sc + ',' + sr * ss + 'A' + sr + ',' + sr + ' 0 0,' + (sf ? 1 : 0) + ' ' + sr * tc + ',' + sr * ts + 'L' + tr * tc + ',' + tr * ts;
|
484 | };
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485 |
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486 | const diagonalX = (sx, sy, tx, ty) => {
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487 | const m = (sx + tx) / 2;
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488 | return 'M' + sx + ',' + sy + 'C' + m + ',' + sy + ' ' + m + ',' + ty + ' ' + tx + ',' + ty;
|
489 | };
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490 |
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491 | const diagonalY = (sx, sy, tx, ty) => {
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492 | const m = (sy + ty) / 2;
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493 | return 'M' + sx + ',' + sy + 'C' + sx + ',' + m + ' ' + tx + ',' + m + ' ' + tx + ',' + ty;
|
494 | };
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495 |
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496 | const diagonalR = (sa, sr, ta, tr) => {
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497 | const sc = Math.cos(sa),
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498 | ss = Math.sin(sa),
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499 | tc = Math.cos(ta),
|
500 | ts = Math.sin(ta),
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501 | mr = (sr + tr) / 2;
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502 | return 'M' + sr * sc + ',' + sr * ss + 'C' + mr * sc + ',' + mr * ss + ' ' + mr * tc + ',' + mr * ts + ' ' + tr * tc + ',' + tr * ts;
|
503 | };
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504 |
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505 | const Paths = fastmap({
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506 | 'line': line,
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507 | 'line-radial': lineR,
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508 | 'arc': arc,
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509 | 'arc-radial': arcR,
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510 | 'curve': curve,
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511 | 'curve-radial': curveR,
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512 | 'orthogonal-horizontal': orthoX,
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513 | 'orthogonal-vertical': orthoY,
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514 | 'orthogonal-radial': orthoR,
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515 | 'diagonal-horizontal': diagonalX,
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516 | 'diagonal-vertical': diagonalY,
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517 | 'diagonal-radial': diagonalR
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518 | });
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519 |
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520 |
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521 |
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522 |
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523 |
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524 |
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525 |
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526 |
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527 |
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528 |
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529 |
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530 | function Pie(params) {
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531 | Transform.call(this, null, params);
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532 | }
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533 | Pie.Definition = {
|
534 | 'type': 'Pie',
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535 | 'metadata': {
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536 | 'modifies': true
|
537 | },
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538 | 'params': [{
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539 | 'name': 'field',
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540 | 'type': 'field'
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541 | }, {
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542 | 'name': 'startAngle',
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543 | 'type': 'number',
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544 | 'default': 0
|
545 | }, {
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546 | 'name': 'endAngle',
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547 | 'type': 'number',
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548 | 'default': 6.283185307179586
|
549 | }, {
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550 | 'name': 'sort',
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551 | 'type': 'boolean',
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552 | 'default': false
|
553 | }, {
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554 | 'name': 'as',
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555 | 'type': 'string',
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556 | 'array': true,
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557 | 'length': 2,
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558 | 'default': ['startAngle', 'endAngle']
|
559 | }]
|
560 | };
|
561 | inherits(Pie, Transform, {
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562 | transform(_, pulse) {
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563 | var as = _.as || ['startAngle', 'endAngle'],
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564 | startAngle = as[0],
|
565 | endAngle = as[1],
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566 | field = _.field || one,
|
567 | start = _.startAngle || 0,
|
568 | stop = _.endAngle != null ? _.endAngle : 2 * Math.PI,
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569 | data = pulse.source,
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570 | values = data.map(field),
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571 | n = values.length,
|
572 | a = start,
|
573 | k = (stop - start) / sum(values),
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574 | index = range(n),
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575 | i,
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576 | t,
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577 | v;
|
578 |
|
579 | if (_.sort) {
|
580 | index.sort((a, b) => values[a] - values[b]);
|
581 | }
|
582 |
|
583 | for (i = 0; i < n; ++i) {
|
584 | v = values[index[i]];
|
585 | t = data[index[i]];
|
586 | t[startAngle] = a;
|
587 | t[endAngle] = a += v * k;
|
588 | }
|
589 |
|
590 | this.value = values;
|
591 | return pulse.reflow(_.modified()).modifies(as);
|
592 | }
|
593 |
|
594 | });
|
595 |
|
596 | const DEFAULT_COUNT = 5;
|
597 |
|
598 | function includeZero(scale) {
|
599 | const type = scale.type;
|
600 | return !scale.bins && (type === Linear || type === Pow || type === Sqrt);
|
601 | }
|
602 |
|
603 | function includePad(type) {
|
604 | return isContinuous(type) && type !== Sequential;
|
605 | }
|
606 |
|
607 | const SKIP = toSet(['set', 'modified', 'clear', 'type', 'scheme', 'schemeExtent', 'schemeCount', 'domain', 'domainMin', 'domainMid', 'domainMax', 'domainRaw', 'domainImplicit', 'nice', 'zero', 'bins', 'range', 'rangeStep', 'round', 'reverse', 'interpolate', 'interpolateGamma']);
|
608 |
|
609 |
|
610 |
|
611 |
|
612 |
|
613 |
|
614 | function Scale(params) {
|
615 | Transform.call(this, null, params);
|
616 | this.modified(true);
|
617 | }
|
618 | inherits(Scale, Transform, {
|
619 | transform(_, pulse) {
|
620 | var df = pulse.dataflow,
|
621 | scale$1 = this.value,
|
622 | key = scaleKey(_);
|
623 |
|
624 | if (!scale$1 || key !== scale$1.type) {
|
625 | this.value = scale$1 = scale(key)();
|
626 | }
|
627 |
|
628 | for (key in _) if (!SKIP[key]) {
|
629 |
|
630 | if (key === 'padding' && includePad(scale$1.type)) continue;
|
631 |
|
632 | isFunction(scale$1[key]) ? scale$1[key](_[key]) : df.warn('Unsupported scale property: ' + key);
|
633 | }
|
634 |
|
635 | configureRange(scale$1, _, configureBins(scale$1, _, configureDomain(scale$1, _, df)));
|
636 | return pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
|
637 | }
|
638 |
|
639 | });
|
640 |
|
641 | function scaleKey(_) {
|
642 | var t = _.type,
|
643 | d = '',
|
644 | n;
|
645 |
|
646 | if (t === Sequential) return Sequential + '-' + Linear;
|
647 |
|
648 | if (isContinuousColor(_)) {
|
649 | n = _.rawDomain ? _.rawDomain.length : _.domain ? _.domain.length + +(_.domainMid != null) : 0;
|
650 | d = n === 2 ? Sequential + '-' : n === 3 ? Diverging + '-' : '';
|
651 | }
|
652 |
|
653 | return (d + t || Linear).toLowerCase();
|
654 | }
|
655 |
|
656 | function isContinuousColor(_) {
|
657 | const t = _.type;
|
658 | return isContinuous(t) && t !== Time && t !== UTC && (_.scheme || _.range && _.range.length && _.range.every(isString));
|
659 | }
|
660 |
|
661 | function configureDomain(scale, _, df) {
|
662 |
|
663 | const raw = rawDomain(scale, _.domainRaw, df);
|
664 | if (raw > -1) return raw;
|
665 | var domain = _.domain,
|
666 | type = scale.type,
|
667 | zero = _.zero || _.zero === undefined && includeZero(scale),
|
668 | n,
|
669 | mid;
|
670 | if (!domain) return 0;
|
671 |
|
672 | if (includePad(type) && _.padding && domain[0] !== peek(domain)) {
|
673 | domain = padDomain(type, domain, _.range, _.padding, _.exponent, _.constant);
|
674 | }
|
675 |
|
676 |
|
677 | if (zero || _.domainMin != null || _.domainMax != null || _.domainMid != null) {
|
678 | n = (domain = domain.slice()).length - 1 || 1;
|
679 |
|
680 | if (zero) {
|
681 | if (domain[0] > 0) domain[0] = 0;
|
682 | if (domain[n] < 0) domain[n] = 0;
|
683 | }
|
684 |
|
685 | if (_.domainMin != null) domain[0] = _.domainMin;
|
686 | if (_.domainMax != null) domain[n] = _.domainMax;
|
687 |
|
688 | if (_.domainMid != null) {
|
689 | mid = _.domainMid;
|
690 | const i = mid > domain[n] ? n + 1 : mid < domain[0] ? 0 : n;
|
691 | if (i !== n) df.warn('Scale domainMid exceeds domain min or max.', mid);
|
692 | domain.splice(i, 0, mid);
|
693 | }
|
694 | }
|
695 |
|
696 |
|
697 | scale.domain(domainCheck(type, domain, df));
|
698 |
|
699 |
|
700 | if (type === Ordinal) {
|
701 | scale.unknown(_.domainImplicit ? scaleImplicit : undefined);
|
702 | }
|
703 |
|
704 |
|
705 | if (_.nice && scale.nice) {
|
706 | scale.nice(_.nice !== true && tickCount(scale, _.nice) || null);
|
707 | }
|
708 |
|
709 |
|
710 | return domain.length;
|
711 | }
|
712 |
|
713 | function rawDomain(scale, raw, df) {
|
714 | if (raw) {
|
715 | scale.domain(domainCheck(scale.type, raw, df));
|
716 | return raw.length;
|
717 | } else {
|
718 | return -1;
|
719 | }
|
720 | }
|
721 |
|
722 | function padDomain(type, domain, range, pad, exponent, constant) {
|
723 | var span = Math.abs(peek(range) - range[0]),
|
724 | frac = span / (span - 2 * pad),
|
725 | d = type === Log ? zoomLog(domain, null, frac) : type === Sqrt ? zoomPow(domain, null, frac, 0.5) : type === Pow ? zoomPow(domain, null, frac, exponent || 1) : type === Symlog ? zoomSymlog(domain, null, frac, constant || 1) : zoomLinear(domain, null, frac);
|
726 | domain = domain.slice();
|
727 | domain[0] = d[0];
|
728 | domain[domain.length - 1] = d[1];
|
729 | return domain;
|
730 | }
|
731 |
|
732 | function domainCheck(type, domain, df) {
|
733 | if (isLogarithmic(type)) {
|
734 |
|
735 |
|
736 | var s = Math.abs(domain.reduce((s, v) => s + (v < 0 ? -1 : v > 0 ? 1 : 0), 0));
|
737 |
|
738 | if (s !== domain.length) {
|
739 | df.warn('Log scale domain includes zero: ' + stringValue(domain));
|
740 | }
|
741 | }
|
742 |
|
743 | return domain;
|
744 | }
|
745 |
|
746 | function configureBins(scale, _, count) {
|
747 | let bins = _.bins;
|
748 |
|
749 | if (bins && !isArray(bins)) {
|
750 |
|
751 | const domain = scale.domain(),
|
752 | lo = domain[0],
|
753 | hi = peek(domain),
|
754 | step = bins.step;
|
755 | let start = bins.start == null ? lo : bins.start,
|
756 | stop = bins.stop == null ? hi : bins.stop;
|
757 | if (!step) error('Scale bins parameter missing step property.');
|
758 | if (start < lo) start = step * Math.ceil(lo / step);
|
759 | if (stop > hi) stop = step * Math.floor(hi / step);
|
760 | bins = range(start, stop + step / 2, step);
|
761 | }
|
762 |
|
763 | if (bins) {
|
764 |
|
765 | scale.bins = bins;
|
766 | } else if (scale.bins) {
|
767 |
|
768 | delete scale.bins;
|
769 | }
|
770 |
|
771 |
|
772 | if (scale.type === BinOrdinal) {
|
773 | if (!bins) {
|
774 |
|
775 | scale.bins = scale.domain();
|
776 | } else if (!_.domain && !_.domainRaw) {
|
777 |
|
778 | scale.domain(bins);
|
779 | count = bins.length;
|
780 | }
|
781 | }
|
782 |
|
783 |
|
784 | return count;
|
785 | }
|
786 |
|
787 | function configureRange(scale, _, count) {
|
788 | var type = scale.type,
|
789 | round = _.round || false,
|
790 | range = _.range;
|
791 |
|
792 | if (_.rangeStep != null) {
|
793 | range = configureRangeStep(type, _, count);
|
794 | }
|
795 | else if (_.scheme) {
|
796 | range = configureScheme(type, _, count);
|
797 |
|
798 | if (isFunction(range)) {
|
799 | if (scale.interpolator) {
|
800 | return scale.interpolator(range);
|
801 | } else {
|
802 | error("Scale type ".concat(type, " does not support interpolating color schemes."));
|
803 | }
|
804 | }
|
805 | }
|
806 |
|
807 |
|
808 | if (range && isInterpolating(type)) {
|
809 | return scale.interpolator(interpolateColors(flip(range, _.reverse), _.interpolate, _.interpolateGamma));
|
810 | }
|
811 |
|
812 |
|
813 | if (range && _.interpolate && scale.interpolate) {
|
814 | scale.interpolate(interpolate(_.interpolate, _.interpolateGamma));
|
815 | } else if (isFunction(scale.round)) {
|
816 | scale.round(round);
|
817 | } else if (isFunction(scale.rangeRound)) {
|
818 | scale.interpolate(round ? interpolateRound : interpolate$1);
|
819 | }
|
820 |
|
821 | if (range) scale.range(flip(range, _.reverse));
|
822 | }
|
823 |
|
824 | function configureRangeStep(type, _, count) {
|
825 | if (type !== Band && type !== Point) {
|
826 | error('Only band and point scales support rangeStep.');
|
827 | }
|
828 |
|
829 |
|
830 | var outer = (_.paddingOuter != null ? _.paddingOuter : _.padding) || 0,
|
831 | inner = type === Point ? 1 : (_.paddingInner != null ? _.paddingInner : _.padding) || 0;
|
832 | return [0, _.rangeStep * bandSpace(count, inner, outer)];
|
833 | }
|
834 |
|
835 | function configureScheme(type, _, count) {
|
836 | var extent = _.schemeExtent,
|
837 | name,
|
838 | scheme$1;
|
839 |
|
840 | if (isArray(_.scheme)) {
|
841 | scheme$1 = interpolateColors(_.scheme, _.interpolate, _.interpolateGamma);
|
842 | } else {
|
843 | name = _.scheme.toLowerCase();
|
844 | scheme$1 = scheme(name);
|
845 | if (!scheme$1) error("Unrecognized scheme name: ".concat(_.scheme));
|
846 | }
|
847 |
|
848 |
|
849 | count = type === Threshold ? count + 1 : type === BinOrdinal ? count - 1 : type === Quantile || type === Quantize ? +_.schemeCount || DEFAULT_COUNT : count;
|
850 |
|
851 | return isInterpolating(type) ? adjustScheme(scheme$1, extent, _.reverse) : isFunction(scheme$1) ? quantizeInterpolator(adjustScheme(scheme$1, extent), count) : type === Ordinal ? scheme$1 : scheme$1.slice(0, count);
|
852 | }
|
853 |
|
854 | function adjustScheme(scheme, extent, reverse) {
|
855 | return isFunction(scheme) && (extent || reverse) ? interpolateRange(scheme, flip(extent || [0, 1], reverse)) : scheme;
|
856 | }
|
857 |
|
858 | function flip(array, reverse) {
|
859 | return reverse ? array.slice().reverse() : array;
|
860 | }
|
861 |
|
862 |
|
863 |
|
864 |
|
865 |
|
866 |
|
867 |
|
868 |
|
869 |
|
870 | function SortItems(params) {
|
871 | Transform.call(this, null, params);
|
872 | }
|
873 | inherits(SortItems, Transform, {
|
874 | transform(_, pulse) {
|
875 | const mod = _.modified('sort') || pulse.changed(pulse.ADD) || pulse.modified(_.sort.fields) || pulse.modified('datum');
|
876 | if (mod) pulse.source.sort(stableCompare(_.sort));
|
877 | this.modified(mod);
|
878 | return pulse;
|
879 | }
|
880 |
|
881 | });
|
882 |
|
883 | const Zero = 'zero',
|
884 | Center = 'center',
|
885 | Normalize = 'normalize',
|
886 | DefOutput = ['y0', 'y1'];
|
887 |
|
888 |
|
889 |
|
890 |
|
891 |
|
892 |
|
893 |
|
894 |
|
895 |
|
896 |
|
897 | function Stack(params) {
|
898 | Transform.call(this, null, params);
|
899 | }
|
900 | Stack.Definition = {
|
901 | 'type': 'Stack',
|
902 | 'metadata': {
|
903 | 'modifies': true
|
904 | },
|
905 | 'params': [{
|
906 | 'name': 'field',
|
907 | 'type': 'field'
|
908 | }, {
|
909 | 'name': 'groupby',
|
910 | 'type': 'field',
|
911 | 'array': true
|
912 | }, {
|
913 | 'name': 'sort',
|
914 | 'type': 'compare'
|
915 | }, {
|
916 | 'name': 'offset',
|
917 | 'type': 'enum',
|
918 | 'default': Zero,
|
919 | 'values': [Zero, Center, Normalize]
|
920 | }, {
|
921 | 'name': 'as',
|
922 | 'type': 'string',
|
923 | 'array': true,
|
924 | 'length': 2,
|
925 | 'default': DefOutput
|
926 | }]
|
927 | };
|
928 | inherits(Stack, Transform, {
|
929 | transform(_, pulse) {
|
930 | var as = _.as || DefOutput,
|
931 | y0 = as[0],
|
932 | y1 = as[1],
|
933 | sort = stableCompare(_.sort),
|
934 | field = _.field || one,
|
935 | stack = _.offset === Center ? stackCenter : _.offset === Normalize ? stackNormalize : stackZero,
|
936 | groups,
|
937 | i,
|
938 | n,
|
939 | max;
|
940 |
|
941 | groups = partition(pulse.source, _.groupby, sort, field);
|
942 |
|
943 | for (i = 0, n = groups.length, max = groups.max; i < n; ++i) {
|
944 | stack(groups[i], max, field, y0, y1);
|
945 | }
|
946 |
|
947 | return pulse.reflow(_.modified()).modifies(as);
|
948 | }
|
949 |
|
950 | });
|
951 |
|
952 | function stackCenter(group, max, field, y0, y1) {
|
953 | var last = (max - group.sum) / 2,
|
954 | m = group.length,
|
955 | j = 0,
|
956 | t;
|
957 |
|
958 | for (; j < m; ++j) {
|
959 | t = group[j];
|
960 | t[y0] = last;
|
961 | t[y1] = last += Math.abs(field(t));
|
962 | }
|
963 | }
|
964 |
|
965 | function stackNormalize(group, max, field, y0, y1) {
|
966 | var scale = 1 / group.sum,
|
967 | last = 0,
|
968 | m = group.length,
|
969 | j = 0,
|
970 | v = 0,
|
971 | t;
|
972 |
|
973 | for (; j < m; ++j) {
|
974 | t = group[j];
|
975 | t[y0] = last;
|
976 | t[y1] = last = scale * (v += Math.abs(field(t)));
|
977 | }
|
978 | }
|
979 |
|
980 | function stackZero(group, max, field, y0, y1) {
|
981 | var lastPos = 0,
|
982 | lastNeg = 0,
|
983 | m = group.length,
|
984 | j = 0,
|
985 | v,
|
986 | t;
|
987 |
|
988 | for (; j < m; ++j) {
|
989 | t = group[j];
|
990 | v = +field(t);
|
991 |
|
992 | if (v < 0) {
|
993 | t[y0] = lastNeg;
|
994 | t[y1] = lastNeg += v;
|
995 | } else {
|
996 | t[y0] = lastPos;
|
997 | t[y1] = lastPos += v;
|
998 | }
|
999 | }
|
1000 | }
|
1001 |
|
1002 | function partition(data, groupby, sort, field) {
|
1003 | var groups = [],
|
1004 | get = f => f(t),
|
1005 | map,
|
1006 | i,
|
1007 | n,
|
1008 | m,
|
1009 | t,
|
1010 | k,
|
1011 | g,
|
1012 | s,
|
1013 | max; // partition data points into stack groups
|
1014 |
|
1015 |
|
1016 | if (groupby == null) {
|
1017 | groups.push(data.slice());
|
1018 | } else {
|
1019 | for (map = {}, i = 0, n = data.length; i < n; ++i) {
|
1020 | t = data[i];
|
1021 | k = groupby.map(get);
|
1022 | g = map[k];
|
1023 |
|
1024 | if (!g) {
|
1025 | map[k] = g = [];
|
1026 | groups.push(g);
|
1027 | }
|
1028 |
|
1029 | g.push(t);
|
1030 | }
|
1031 | }
|
1032 |
|
1033 |
|
1034 | for (k = 0, max = 0, m = groups.length; k < m; ++k) {
|
1035 | g = groups[k];
|
1036 |
|
1037 | for (i = 0, s = 0, n = g.length; i < n; ++i) {
|
1038 | s += Math.abs(field(g[i]));
|
1039 | }
|
1040 |
|
1041 | g.sum = s;
|
1042 | if (s > max) max = s;
|
1043 | if (sort) g.sort(sort);
|
1044 | }
|
1045 |
|
1046 | groups.max = max;
|
1047 | return groups;
|
1048 | }
|
1049 |
|
1050 | export { AxisTicks as axisticks, DataJoin as datajoin, Encode as encode, LegendEntries as legendentries, LinkPath as linkpath, Pie as pie, Scale as scale, SortItems as sortitems, Stack as stack };
|