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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 | 34x 34x 34x 34x 34x 34x 34x 34x 34x 34x 34x 34x 34x 34x 34x 34x | /**
* It adds attributes to root element from passed attributes list
*
* @param {object} root svg element to be changed
* @param {object} attributes list of attributes to be added on root element
* @modifies {root}
*
*/
const _addAttributes = (root, attributes = []) => {
for (const attr of attributes) {
const { key, value } = attr;
Iif (key && value) {
if (key === 'class') {
root.classed(value, true);
} else {
root.attr(key, value);
}
}
}
};
/**
* It formats axis labels. It adds units if existing
*
* @param {Object} def
* @param {string} def.label string representing axis label
* @param {string} [def.unit] string representing axis unit
* @return {string} formatted label
*/
const _formatAxisLabel = ({ label, unit }) => {
let formattedLabel = label;
Iif (unit) {
formattedLabel += `(${unit})`;
}
return formattedLabel;
};
/**
* It appends chart svg element container to root element
*
* @param {object} root svg element to be changed
* @param {number} width width of container
* @param {number} height height of container
* @param {number} translateX value to translate on axis x
* @param {number} translateY value to translate on axis y
* @modifies {root}
*
* @return {object} appended chart container (svg element)
*/
const _addChartContainer = (root, width, height, translateX, translateY) => {
root.append('rect').attr('class', 'background').attr('width', width).attr('height', height);
return root
.append('g')
.attr('width', width)
.attr('height', height)
.append('g')
.attr('transform', 'translate(' + translateX + ',' + translateY + ')');
};
const _addLegend = (root, width, height, posX, posY) => {
const legendContainer = root
.append('g')
.attr('class', 'legend')
.attr('transform', 'translate(' + posX + ',' + posY + ')');
legendContainer
.append('rect')
.attr('class', 'legend-background')
.attr('width', width)
.attr('height', height);
return legendContainer;
};
const _setLegendLabels = (root, labels, colors, itemHeight, itemWidth, textEllipses) => {
const yOffset = itemHeight / 2;
const textLeft = 20;
// Add one dot in the legend for each
root
.selectAll('labelDots')
.data(labels)
.enter()
.append('circle')
.attr('cx', 10)
.attr('cy', (_d, i) => yOffset + i * itemHeight)
.attr('r', 5)
.style('fill', (_d, i) => colors[i]);
root
.selectAll('labelText')
.data(labels)
.enter()
.append('text')
.attr('x', textLeft)
.attr('y', (_d, i) => yOffset + i * itemHeight)
.style('fill', (_d, i) => colors[i])
.append('tspan')
.style('alignment-baseline', 'middle')
.text(d => d)
.each(textEllipses(itemWidth - textLeft, 1));
};
/**
* It appends axis svg element to root element
*
* @param {object} root svg element to be changed
* @param {TimecoursePointDef} axisDef definition of given axis
* @param {number} posX position X to place content
* @param {number} posY position Y to place content
* @param {number} axisExtraAttrs list of extra attributes to be added on content
* @param {function} axisBuilder callback function to create axis graphics
* @param {boolean} showAxisLabels flag to display labels or not
* @param {number} labelPosX position X to place label content
* @param {number} labelPosY position Y to place label content
* @param {object} labelExtraAttrs list of extra attributes to be added on label content
* @modifies {root}
*
* @return {object} axis svg element
*/
const _addAxis = (
root,
axisDef,
posX = 0,
posY = 0,
axisExtraAttrs = [],
axisBuilder,
showAxisLabels,
labelPosX,
labelPosY,
labelExtraAttrs = [],
showAxisGrid
) => {
const { type } = axisDef;
const showAxisGridClass = showAxisGrid ? 'grid' : '';
const translateValue = `${posX}, ${posY}`;
const axisContent = root
.append('g')
.attr('class', `${type} ${showAxisGridClass} axis`)
.attr('transform', `translate(${translateValue})`);
_addAttributes(axisContent, axisExtraAttrs);
axisContent.call(axisBuilder());
Iif (showAxisLabels) {
const label = _formatAxisLabel(axisDef);
// text label for the x axis
Iif (label) {
const labelContent = root
.append('text')
.attr('class', 'label axis')
.attr('x', labelPosX)
.attr('y', labelPosY)
.style('text-anchor', 'middle')
.text(label);
_addAttributes(labelContent, labelExtraAttrs);
}
}
return axisContent;
};
/**
* It scales axis graphics
*
* @param {object} sourceGraphicsXAxis original d3 graphics to be proccessed (x Axis)
* @param {object} sourceGraphicsYAxis original d3 graphics to be proccessed (y Axis)
* @param {object} xAxisGenerator d3 X axis generator
* @param {object} yAxisGenerator d3 Y axis generator
* @param {object} newXAxisScale d3 continuos scale for X Axis
* @param {object} newYAxisScale d3 continuos scale for Y Axis
* @modifies {sourceGraphicsXAxis|sourceGraphicsYAxis}
*/
const _scaleAxisGraphics = (
sourceGraphicsXAxis,
sourceGraphicsYAxis,
xAxisGenerator,
yAxisGenerator,
newXAxisScale,
newYAxisScale
) => {
const newXAxis = xAxisGenerator.scale(newXAxisScale);
const newYAxis = yAxisGenerator.scale(newYAxisScale);
sourceGraphicsXAxis.call(newXAxis);
sourceGraphicsYAxis.call(newYAxis);
};
/**
* It appends background svg element to root element and also a clip path for chart boundaries
*
* @param {object} root svg element to be changed
* @param {number} width content`s width
* @param {number} height content`s height
* @param {boolean} transparent background to be transparent or not
* @param {number} offset content`s clip offset
* @modifies {root}
*
*/
const _addChartClipPath = (root, width, height, transparent = false, offset = 6) => {
const translateOffset = -offset / 2;
root
.append('clipPath')
.attr('id', 'clip')
.append('rect')
.attr('transform', `translate(${translateOffset}, ${translateOffset})`)
.attr('width', width + offset)
.attr('height', height + offset);
root
.append('rect')
.attr('class', 'background')
.attr('width', width)
.attr('height', height)
.classed('transparent', transparent);
};
const _addSeries = (root, seriesIndex, style) => {
return root
.append('g')
.attr('id', `series_${seriesIndex}`)
.attr('class', 'series')
.attr('stroke', style.color || '#ffffff');
};
/**
* It appends line chart svg element to root element
*
* @param {object} root svg element to be changed
* @param {object} dataset dataset to tie to content
* @param {string} dAttrValue path d attribute
* @modifies {root}
*
* @return {object} svg line element line
*/
const _addLine = (root, dataset, dAttrValue) => {
return root
.append('path')
.attr('clip-path', 'url(#clip)')
.datum(dataset)
.attr('class', 'line')
.attr('d', dAttrValue);
};
/**
* It updates line chart svg element with new dataset and dAttrValue value
*
* @param {object} root svg element to be changed
* @param {object} dataset dataset to tie to content
* @param {string} dAttrValue path d attribute
* @modifies {root}
*
*/
const _updateLine = (root, dataset = [], dAttrValue) => {
const line = root.select('.line');
Iif (dataset && dataset.length > 0) {
line.datum(dataset);
}
line.attr('d', dAttrValue);
};
/**
* It appends points svg element to root element
*
* @param {object} root svg element to be changed
* @param {object} dataset dataset to tie to content
* @param {number} cxAttrValue cx attribute
* @param {number} cyAttrValue cy attribute
* @modifies {root}
*
* @return {object} points svg element
*
*/
const _addPoints = (root, dataset, cxAttrValue, cyAttrValue) => {
return root
.selectAll('.dot')
.data(dataset)
.enter()
.append('circle')
.attr('id', (point, index) => {
return `point-${index}`;
})
.attr('class', 'dot')
.attr('clip-path', 'url(#clip)')
.attr('cx', cxAttrValue)
.attr('cy', cyAttrValue)
.attr('r', 2);
};
/**
* It return points from root parent
*
* @param {object} root svg element to be changed
* @return {object} points svg element
*
*/
const _getPoints = root => {
return root.selectAll('.dot');
};
/**
* It updates points svg element with new dataset, cxAttrValue and cyAttrValue
*
* @param {object} root svg element to be changed
* @param {object} dataset dataset to tie to content
* @param {number} cxAttrValue cx attribute
* @param {number} cyAttrValue cy attribute
* @modifies {root}
*
*/
const _updatePoints = (root, dataset = [], cxAttrValue, cyAttrValue) => {
const dot = root.selectAll('.dot');
dot.data(dataset).attr('cx', cxAttrValue).attr('cy', cyAttrValue);
};
/**
* It removes children nodes from root param.
*
* @param {object} root svg element to remove children content
* @modifies {root}
*
*/
const _removeChartContents = root => {
root.selectAll('*').remove();
};
const chart = {
axis: {
addNode: _addAxis,
scaleGraphics: _scaleAxisGraphics,
},
series: {
addNode: _addSeries,
},
lines: {
addNode: _addLine,
updateNode: _updateLine,
},
points: {
addNode: _addPoints,
updateNode: _updatePoints,
getPoints: _getPoints,
},
background: {
addNode: _addChartClipPath,
},
container: {
addNode: _addChartContainer,
},
legend: {
addNode: _addLegend,
setLabels: _setLegendLabels,
},
removeContents: _removeChartContents,
};
export default chart;
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