Add Series chart operation
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toby
parent
39ab600887
commit
6784a1c027
@ -3558,6 +3558,39 @@ const OperationConfig = {
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},
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]
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},
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"Series chart": {
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description: [].join("\n"),
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run: Charts.runSeriesChart,
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inputType: "string",
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outputType: "html",
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args: [
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{
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name: "Record delimiter",
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type: "option",
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value: Charts.RECORD_DELIMITER_OPTIONS,
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},
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{
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name: "Field delimiter",
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type: "option",
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value: Charts.FIELD_DELIMITER_OPTIONS,
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},
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{
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name: "X label",
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type: "string",
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value: "",
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},
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{
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name: "Point radius",
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type: "number",
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value: 1,
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},
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{
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name: "Series colours",
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type: "string",
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value: "mediumseagreen, dodgerblue, tomato",
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},
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]
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},
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"HTML to Text": {
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description: [].join("\n"),
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run: HTML.runHTMLToText,
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@ -140,6 +140,50 @@ const Charts = {
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},
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/**
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* Gets values from input for a time series plot.
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*
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* @param {string} input
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* @param {string} recordDelimiter
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* @param {string} fieldDelimiter
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* @param {boolean} columnHeadingsAreIncluded - whether we should skip the first record
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* @returns {Object[]}
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*/
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_getSeriesValues(input, recordDelimiter, fieldDelimiter, columnHeadingsAreIncluded) {
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let { headings, values } = Charts._getValues(
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input,
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recordDelimiter, fieldDelimiter,
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false,
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3
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);
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let xValues = new Set(),
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series = {};
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values = values.forEach(row => {
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let serie = row[0],
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xVal = row[1],
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val = parseFloat(row[2], 10);
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if (Number.isNaN(val)) throw "Values must be numbers in base 10.";
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xValues.add(xVal);
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if (typeof series[serie] === "undefined") series[serie] = {};
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series[serie][xVal] = val;
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});
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xValues = new Array(...xValues);
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const seriesList = [];
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for (let seriesName in series) {
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let serie = series[seriesName];
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seriesList.push({name: seriesName, data: serie});
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}
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return { xValues, series: seriesList };
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},
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/**
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* Hex Bin chart operation.
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*
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@ -630,6 +674,168 @@ const Charts = {
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return svg._groups[0][0].outerHTML;
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},
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/**
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* Series chart operation.
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*
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* @param {string} input
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* @param {Object[]} args
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* @returns {html}
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*/
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runSeriesChart(input, args) {
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const recordDelimiter = Utils.charRep[args[0]],
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fieldDelimiter = Utils.charRep[args[1]],
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xLabel = args[2],
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pipRadius = args[3],
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seriesColours = args[4].split(","),
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svgWidth = 500,
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interSeriesPadding = 20,
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xAxisHeight = 50,
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seriesLabelWidth = 50,
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seriesHeight = 100,
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seriesWidth = svgWidth - seriesLabelWidth - interSeriesPadding;
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let { xValues, series } = Charts._getSeriesValues(input, recordDelimiter, fieldDelimiter),
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allSeriesHeight = Object.keys(series).length * (interSeriesPadding + seriesHeight),
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svgHeight = allSeriesHeight + xAxisHeight + interSeriesPadding;
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let svg = document.createElement("svg");
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svg = d3.select(svg)
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.attr("width", "100%")
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.attr("height", "100%")
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.attr("viewBox", `0 0 ${svgWidth} ${svgHeight}`);
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let xAxis = d3.scalePoint()
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.domain(xValues)
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.range([0, seriesWidth]);
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svg.append("g")
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.attr("class", "axis axis--x")
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.attr("transform", `translate(${seriesLabelWidth}, ${xAxisHeight})`)
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.call(
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d3.axisTop(xAxis).tickValues(xValues.filter((x, i) => {
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return [0, Math.round(xValues.length / 2), xValues.length -1].indexOf(i) >= 0;
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}))
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);
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svg.append("text")
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.attr("x", svgWidth / 2)
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.attr("y", xAxisHeight / 2)
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.style("text-anchor", "middle")
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.text(xLabel);
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let tooltipText = {},
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tooltipAreaWidth = seriesWidth / xValues.length;
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xValues.forEach(x => {
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let tooltip = [];
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series.forEach(serie => {
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let y = serie.data[x];
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if (typeof y === "undefined") return;
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tooltip.push(`${serie.name}: ${y}`);
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});
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tooltipText[x] = tooltip.join("\n");
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});
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let chartArea = svg.append("g")
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.attr("transform", `translate(${seriesLabelWidth}, ${xAxisHeight})`);
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chartArea
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.append("g")
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.selectAll("rect")
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.data(xValues)
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.enter()
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.append("rect")
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.attr("x", x => {
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return xAxis(x) - (tooltipAreaWidth / 2);
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})
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.attr("y", 0)
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.attr("width", tooltipAreaWidth)
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.attr("height", allSeriesHeight)
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.attr("stroke", "none")
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.attr("fill", "transparent")
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.append("title")
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.text(x => {
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return `${x}\n
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--\n
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${tooltipText[x]}\n
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`.replace(/\s{2,}/g, "\n");
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});
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let yAxesArea = svg.append("g")
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.attr("transform", `translate(0, ${xAxisHeight})`);
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series.forEach((serie, seriesIndex) => {
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let yExtent = d3.extent(Object.values(serie.data)),
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yAxis = d3.scaleLinear()
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.domain(yExtent)
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.range([seriesHeight, 0]);
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let seriesGroup = chartArea
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.append("g")
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.attr("transform", `translate(0, ${seriesHeight * seriesIndex + interSeriesPadding * (seriesIndex + 1)})`);
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let path = "";
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xValues.forEach((x, xIndex) => {
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let nextX = xValues[xIndex + 1],
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y = serie.data[x],
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nextY= serie.data[nextX];
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if (typeof y === "undefined" || typeof nextY === "undefined") return;
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x = xAxis(x); nextX = xAxis(nextX);
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y = yAxis(y); nextY = yAxis(nextY);
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path += `M ${x} ${y} L ${nextX} ${nextY} z `;
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});
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seriesGroup
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.append("path")
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.attr("d", path)
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.attr("fill", "none")
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.attr("stroke", seriesColours[seriesIndex % seriesColours.length])
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.attr("stroke-width", "1");
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xValues.forEach(x => {
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let y = serie.data[x];
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if (typeof y === "undefined") return;
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seriesGroup
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.append("circle")
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.attr("cx", xAxis(x))
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.attr("cy", yAxis(y))
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.attr("r", pipRadius)
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.attr("fill", seriesColours[seriesIndex % seriesColours.length])
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.append("title")
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.text(d => {
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return `${x}\n
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--\n
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${tooltipText[x]}\n
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`.replace(/\s{2,}/g, "\n");
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});
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});
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yAxesArea
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.append("g")
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.attr("transform", `translate(${seriesLabelWidth - interSeriesPadding}, ${seriesHeight * seriesIndex + interSeriesPadding * (seriesIndex + 1)})`)
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.attr("class", "axis axis--y")
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.call(d3.axisLeft(yAxis).ticks(5));
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yAxesArea
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.append("g")
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.attr("transform", `translate(0, ${seriesHeight / 2 + seriesHeight * seriesIndex + interSeriesPadding * (seriesIndex + 1)})`)
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.append("text")
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.style("text-anchor", "middle")
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.attr("transform", "rotate(-90)")
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.text(serie.name);
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});
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return svg._groups[0][0].outerHTML;
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},
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};
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export default Charts;
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