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forked from romsson's block: simple line chart from dataset
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December 10, 2018 20:02
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simple line chart from dataset
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| license: mit |
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| [{"name": "A", "value": 10, "date": "2016-01"}, | |
| {"name": "B", "value": 30, "date": "2016-02"}, | |
| {"name": "C", "value": 20, "date": "2016-03"}, | |
| {"name": "D", "value": 40, "date": "2016-04"}, | |
| {"name": "E", "value": 50, "date": "2016-05"}, | |
| {"name": "F", "value": 20, "date": "2016-06"}, | |
| {"name": "G", "value": 10, "date": "2016-07"} | |
| ] |
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| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>TP4</title> | |
| <style> | |
| #viz { | |
| height: 500px; | |
| width: 960px; | |
| } | |
| .btn { | |
| font-size: 24px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="viz"></div> | |
| <div id="controls"></div> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| let margin = {top: 20, right: 30, bottom: 30, left: 40} | |
| const width = 960 - margin.left - margin.right | |
| const height = 500 - margin.top - margin.bottom | |
| const names = ["Group", "Stack"] | |
| const n = 10, m = 5 | |
| d3.select("#viz") | |
| .append("svg") | |
| .attr("id", "svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")") | |
| let data = d3.range(n).map(function() { | |
| return d3.range(m).map(Math.random) | |
| }) | |
| let stackLayout = d3.stack().keys(d3.range(m))(data) | |
| console.log("Stack Layout: ", stackLayout) | |
| console.log("Data: ", data) | |
| stackViz() | |
| d3.select("#controls") | |
| .selectAll("button.btn") | |
| .data(names) | |
| .enter() | |
| .append("button") | |
| .attr("class", "btn") | |
| .on("click", buttonClick) | |
| .html(function(d) { return d }) | |
| function buttonClick(type) { | |
| if (type === "Stack") { | |
| stackViz() | |
| } | |
| if (type === "Group") { | |
| groupViz() | |
| } | |
| } | |
| function stackViz() { | |
| let xScale = d3.scaleBand().rangeRound([0, width]).paddingInner(0.05).align(0.1).domain(d3.range(n)) | |
| let yScale = d3.scaleLinear().domain([0, m]).rangeRound([height, 0]).nice() | |
| let color = d3.scaleOrdinal(d3.schemeCategory10) | |
| if (d3.select("g").selectAll("g.bar").empty() === true) { | |
| d3.select("g").selectAll("g.bar") | |
| .data(stackLayout) | |
| .enter() | |
| .append("g") | |
| .attr("class", "bar") | |
| .each(function(d) { | |
| d3.select(this) | |
| .selectAll("rect") | |
| .data(d) | |
| .enter() | |
| .append("rect") | |
| .transition() | |
| .delay(function(p, i) { return i*100 }) | |
| .duration(500) | |
| .attr("x", function(p, i) { return xScale(i) }) | |
| .attr("y", function(p) { return yScale(p[1]) }) | |
| .attr("height", function(p) { return yScale(p[0]) - yScale(p[1]) }) | |
| .attr("width", xScale.bandwidth()) | |
| .style("fill", color(d.key)) | |
| }) | |
| } else { | |
| d3.select("g").selectAll("g.bar") | |
| .data(stackLayout) | |
| .attr("transform", function(_, i) { return "translate(0, 0)" }) | |
| .style("fill", function(_, i) { return color(i) }) | |
| .each(function(d) { | |
| d3.select(this) | |
| .selectAll("rect") | |
| .data(d) | |
| .transition() | |
| .delay(function(p, i) { return i*100 }) | |
| .duration(500) | |
| .attr("x", function(p, i) { return xScale(i) }) | |
| .attr("y", function(p) { return yScale(p[1]) }) | |
| .attr("height", function(p) { return yScale(p[0]) - yScale(p[1]) }) | |
| .attr("width", xScale.bandwidth()) | |
| }) | |
| } | |
| } | |
| function groupViz() { | |
| let yScale = d3.scaleLinear().domain([0,m]).range([height, 0]).nice() | |
| let x0Scale = d3.scaleBand().domain(d3.range(n)).range([0, width], .2) | |
| let x1Scale = d3.scaleBand().domain(d3.range(m)).range([0, x0Scale.bandwidth() - 10]) | |
| let color = d3.scaleOrdinal(d3.schemeCategory10) | |
| let dataGroup = [] | |
| stackLayout.forEach(function(e) { | |
| let _t = [] | |
| e.forEach(function(a, i) { | |
| _t.push(a[1]) | |
| }) | |
| dataGroup.push(_t) | |
| }) | |
| console.log("Data Group: ", dataGroup) | |
| d3.selectAll("g.bar") | |
| .data(dataGroup) | |
| .attr("transform", function(_, i) { return "translate(" + x1Scale(i) + ",0)" }) | |
| .style("fill", function(_, i) { return color(i) }) | |
| .each(function(d) { | |
| d3.select(this) | |
| .selectAll("rect") | |
| .data(d) | |
| .transition() | |
| .delay(function(p, i) { return i*100 }) | |
| .duration(500) | |
| .attr("width", x1Scale.bandwidth()) | |
| .attr("height", function(p) { return height - yScale(p) }) | |
| .attr("x", function(_, i) { return x0Scale(i) }) | |
| .attr("y", function(p) { return yScale(p) }) | |
| }) | |
| } | |
| </script> | |
| </body> | |
| </html> |
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