Horizontal stacked bar chart implementation in d3.v4
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July 30, 2021 07:29
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Horizontal stacked bar chart implementation in d3.v4
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .axis text { | |
| font: 10px sans-serif; | |
| } | |
| .axis line, | |
| .axis path { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .path-line { | |
| fill: none; | |
| stroke: yellow; | |
| stroke-width: 1.5px; | |
| } | |
| svg { | |
| background: #f0f0f0; | |
| } | |
| </style> | |
| <body> | |
| <h2>Stacked Bar Chart - d3.v4 implementation</h2> | |
| <div id='stacked-bar'></div> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var initStackedBarChart = { | |
| draw: function(config) { | |
| me = this, | |
| domEle = config.element, | |
| stackKey = config.key, | |
| data = config.data, | |
| margin = {top: 20, right: 20, bottom: 30, left: 50}, | |
| parseDate = d3.timeParse("%m/%Y"), | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom, | |
| xScale = d3.scaleLinear().rangeRound([0, width]), | |
| yScale = d3.scaleBand().rangeRound([height, 0]).padding(0.1), | |
| color = d3.scaleOrdinal(d3.schemeCategory20), | |
| xAxis = d3.axisBottom(xScale), | |
| yAxis = d3.axisLeft(yScale).tickFormat(d3.timeFormat("%b")), | |
| svg = d3.select("#"+domEle).append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| var stack = d3.stack() | |
| .keys(stackKey) | |
| /*.order(d3.stackOrder)*/ | |
| .offset(d3.stackOffsetNone); | |
| var layers= stack(data); | |
| data.sort(function(a, b) { return b.total - a.total; }); | |
| yScale.domain(data.map(function(d) { return parseDate(d.date); })); | |
| xScale.domain([0, d3.max(layers[layers.length - 1], function(d) { return d[0] + d[1]; }) ]).nice(); | |
| var layer = svg.selectAll(".layer") | |
| .data(layers) | |
| .enter().append("g") | |
| .attr("class", "layer") | |
| .style("fill", function(d, i) { return color(i); }); | |
| layer.selectAll("rect") | |
| .data(function(d) { return d; }) | |
| .enter().append("rect") | |
| .attr("y", function(d) { return yScale(parseDate(d.data.date)); }) | |
| .attr("x", function(d) { return xScale(d[0]); }) | |
| .attr("height", yScale.bandwidth()) | |
| .attr("width", function(d) { return xScale(d[1]) - xScale(d[0]) }); | |
| svg.append("g") | |
| .attr("class", "axis axis--x") | |
| .attr("transform", "translate(0," + (height+5) + ")") | |
| .call(xAxis); | |
| svg.append("g") | |
| .attr("class", "axis axis--y") | |
| .attr("transform", "translate(0,0)") | |
| .call(yAxis); | |
| } | |
| } | |
| var data = [{"date":"4/1854","total":8571,"disease":1,"wounds":0,"other":5},{"date":"5/1854","total":23333,"disease":12,"wounds":0,"other":9},{"date":"6/1854","total":28333,"disease":11,"wounds":0,"other":6},{"date":"7/1854","total":28772,"disease":359,"wounds":0,"other":23},{"date":"8/1854","total":30246,"disease":828,"wounds":1,"other":30},{"date":"9/1854","total":30290,"disease":788,"wounds":81,"other":70},{"date":"10/1854","total":30643,"disease":503,"wounds":132,"other":128},{"date":"11/1854","total":29736,"disease":844,"wounds":287,"other":106},{"date":"12/1854","total":32779,"disease":1725,"wounds":114,"other":131},{"date":"1/1855","total":32393,"disease":2761,"wounds":83,"other":324},{"date":"2/1855","total":30919,"disease":2120,"wounds":42,"other":361},{"date":"3/1855","total":30107,"disease":1205,"wounds":32,"other":172},{"date":"4/1855","total":32252,"disease":477,"wounds":48,"other":57},{"date":"5/1855","total":35473,"disease":508,"wounds":49,"other":37},{"date":"6/1855","total":38863,"disease":802,"wounds":209,"other":31},{"date":"7/1855","total":42647,"disease":382,"wounds":134,"other":33},{"date":"8/1855","total":44614,"disease":483,"wounds":164,"other":25},{"date":"9/1855","total":47751,"disease":189,"wounds":276,"other":20},{"date":"10/1855","total":46852,"disease":128,"wounds":53,"other":18},{"date":"11/1855","total":37853,"disease":178,"wounds":33,"other":32},{"date":"12/1855","total":43217,"disease":91,"wounds":18,"other":28},{"date":"1/1856","total":44212,"disease":42,"wounds":2,"other":48},{"date":"2/1856","total":43485,"disease":24,"wounds":0,"other":19},{"date":"3/1856","total":46140,"disease":15,"wounds":0,"other":35}]; | |
| var key = ["wounds", "other", "disease"]; | |
| initStackedBarChart.draw({ | |
| data: data, | |
| key: key, | |
| element: 'stacked-bar' | |
| }); | |
| </script> |
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Hi,
I found a issue. When the data is really big leave a lots of white space up and down in the y eje. Can you help me with this?
Thanks, Really good graphics.