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D3 Multi-lines Chart
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>D3 Multi-lines Graph</title> | |
| <style> | |
| #vis > svg { | |
| overflow: visible; | |
| } | |
| </style> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.6.0/d3.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3-tip/0.7.1/d3-tip.min.js"></script> | |
| </head> | |
| <body> | |
| <div id="vis"></div> | |
| <script> | |
| var self = this, | |
| margin = { | |
| top: 20, | |
| right: 10, | |
| bottom: 20, | |
| left: 30 | |
| }, | |
| width = 400 - margin.left - margin.right, | |
| height = 175 - margin.top - margin.bottom, | |
| formatPercent = d3.format('.0%'), | |
| x = d3.scaleBand() | |
| .rangeRound([0, width]), | |
| y = d3.scaleLinear() | |
| .range([height, 0]) | |
| .domain([0, 1]), | |
| xAxis = d3.axisBottom() | |
| .scale(x), | |
| yAxis = d3.axisLeft() | |
| .scale(y) | |
| .tickFormat(formatPercent) | |
| .tickSize(width) | |
| .ticks(3), | |
| svg, | |
| dataNodes = [{ | |
| degree: 'Degree1', | |
| values: [{ | |
| fy: 2015, | |
| rate: 0.1 | |
| }, { | |
| fy: 2016, | |
| rate: 0.3 | |
| }] | |
| }, { | |
| degree: 'Degree2', | |
| values: [{ | |
| fy: 2015, | |
| rate: 0.2 | |
| }, { | |
| fy: 2016, | |
| rate: 0.4 | |
| }] | |
| }, { | |
| degree: 'Degree3', | |
| values: [{ | |
| fy: 2015, | |
| rate: 0.3, | |
| }, { | |
| fy: 2016, | |
| rate: 0.8 | |
| }] | |
| }, { | |
| degree: 'Degree4', | |
| values: [{ | |
| fy: 2015, | |
| rate: 0.5 | |
| }, { | |
| fy: 2016, | |
| rate: 0.6 | |
| }] | |
| }], | |
| i, | |
| j, | |
| valueline = d3.line() | |
| .x(function (d) { | |
| return x(d.fy) + x.bandwidth() / 2; | |
| }) | |
| .y(function (d) { | |
| return y(d.rate); | |
| }), | |
| fillColor = d3.scaleOrdinal() | |
| .domain(['degree1', 'degree2', 'degree3', 'degree4']) | |
| .range(['#d84b2a', '#7aa25c', '#1f67af', '#0a7470']), | |
| tip = d3.tip() | |
| .attr('class', 'd3-tip') | |
| .offset([0, 0]) | |
| .direction('e') | |
| .html(function (d, el) { | |
| return 'fiscal year: ' + d.fy + ' <br /> valu: ' + d.rate; | |
| }), | |
| legend; | |
| /* Wrap legend text */ | |
| function wrap(text, width) { | |
| text.each(function () { | |
| var text = d3.select(this), | |
| words = text.text().split(/\s+/).reverse(), | |
| word, | |
| line = [], | |
| lineNumber = 0, | |
| lineHeight = 1.1, // ems | |
| y = text.attr('y'), | |
| x = text.attr('x'), | |
| dy = parseFloat(text.attr('dy')), | |
| tspan = text.text(null).append('tspan').attr('x', x).attr('y', y).attr('dy', dy + 'em'); | |
| while (word = words.pop()) { //eslint-disable-line | |
| line.push(word); | |
| tspan.text(line.join(' ')); | |
| if (tspan.node().getComputedTextLength() > width) { | |
| line.pop(); | |
| tspan.text(line.join(' ')); | |
| line = [word]; | |
| tspan = text.append('tspan').attr('x', x).attr('y', y).attr('dy', ++lineNumber * lineHeight + dy + 'em').text(word); | |
| } | |
| } | |
| }); | |
| } | |
| x.domain(['2015', '2016']); | |
| svg = d3.select('#vis') | |
| .append('svg:svg') | |
| .attr('width', width + margin.left + margin.right) | |
| .attr('height', height + margin.top + margin.bottom) | |
| .append('g') | |
| .attr('transform', 'translate(' + margin.left + ',' + margin.top + ')'); | |
| svg.append('g') | |
| .attr('class', 'x axis') | |
| .attr('transform', 'translate(0,' + height + ')') | |
| .call(xAxis); | |
| svg.append('g') | |
| .attr('class', 'y axis') | |
| .attr('transform', 'translate(' + width + ',0)') | |
| .call(yAxis); | |
| svg.selectAll('.series') | |
| .data(dataNodes) | |
| .enter().append('g') | |
| .attr('class', 'series') | |
| .style('fill', function (d, i) { | |
| return fillColor(d.degree); | |
| }) | |
| .selectAll('.point') | |
| .data(function (d) { | |
| return d.values; | |
| }) | |
| .enter().append('circle') | |
| .attr('class', 'point') | |
| .attr('r', 0) | |
| .attr('cx', function (d) { | |
| return x(d.fy) + x.bandwidth() / 2; | |
| }) | |
| .attr('cy', function (d) { | |
| return y(d.rate); | |
| }) | |
| .on('mouseover', function (d) { | |
| tip.show(d); | |
| }) | |
| .on('mouseout', tip.hide) | |
| .transition() | |
| .duration(400) | |
| .ease(d3.easeLinear) | |
| .attr('r', 4.5); | |
| svg.selectAll('.series') | |
| .append('path') | |
| .attr('class', 'line') | |
| .attr('id', function (d, i) { | |
| return 'line-' + i; | |
| }) | |
| .attr('d', function (d) { | |
| return valueline(d.values); | |
| }) | |
| .attr('fill', 'none') | |
| .style('stroke', function (d) { | |
| return fillColor(d.degree); | |
| }); | |
| svg.selectAll('.line').each(function (d, i) { | |
| var totalLength = d3.select('#line-' + i).node().getTotalLength(); | |
| d3.selectAll('#line-' + i) | |
| .attr('stroke-dasharray', totalLength + ' ' + totalLength) | |
| .attr('stroke-dashoffset', totalLength) | |
| .transition() | |
| .duration(400) | |
| .ease(d3.easeLinear) | |
| .attr('stroke-dashoffset', 0); | |
| }); | |
| svg.call(tip); | |
| legend = svg.selectAll('.legend') | |
| .data(dataNodes) | |
| .enter().append('g') | |
| .attr('class', 'legend') | |
| .attr('transform', function (d, i) { | |
| return 'translate(' + width / 4 + ',' + (i * 20) + ')'; | |
| }); | |
| legend.append('rect') | |
| .attr('x', width - 18) | |
| .attr('width', 18) | |
| .attr('height', 18) | |
| .style('fill', function (d) { | |
| return fillColor(d.degree); | |
| }); | |
| legend.append('text') | |
| .attr('x', width - 24) | |
| .attr('y', 9) | |
| .attr('dy', '.35em') | |
| .style('text-anchor', 'end') | |
| .style('font-size', '12px') | |
| .text(function (d) { | |
| return d.degree; | |
| }) | |
| .call(wrap, 100); | |
| </script> | |
| </body> | |
| </html> |
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