Created
November 23, 2015 01:32
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D3byEX 7.8: Animated Bubble Plot
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta name="description" content="D3byEX 7.8" /> | |
| <meta charset="utf-8"> | |
| </head> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var url = "https://gist.githubusercontent.com/d3byex/8fcf43e446b1e4dd0146/raw/7a11679cb4a810061dee660be0d30b6a9fe69f26/lfp_all.csv"; | |
| d3.csv(url, function (error, rawData) { | |
| var data = rawData.map(function (d) { | |
| return { | |
| CountryCode: d.CountryCode, | |
| CountryName: d.CountryName, | |
| LifeExp: +d.LifeExp, | |
| FertRate: +d.FertRate, | |
| Population: +d.Population, | |
| Region: d.Region, | |
| Year: d.Year | |
| }; | |
| }); | |
| var nested = d3.nest().key(function (d) { return d.Year; }) | |
| .sortKeys(d3.ascending) | |
| .map(data); | |
| var minBubbleSize = 5, maxBubbleSize = 50; | |
| var margin = { | |
| left: maxBubbleSize, top: maxBubbleSize, | |
| bottom: maxBubbleSize, right: maxBubbleSize | |
| }; | |
| var axisPadding = 10; | |
| var graphWidth = 500, graphHeight = 400; | |
| var totalWidth = graphWidth + margin.left + margin.right; | |
| var totalHeight = graphHeight + margin.top + margin.bottom; | |
| var lifeExpectancy = data.map(function (d) { return d.LifeExp; }); | |
| var fertilityRate = data.map(function (d) { return d.FertRate; }); | |
| var population = data.map(function (d) { return d.Population; }); | |
| var regions = data.map(function (d) { return d.Region; }); | |
| var xScale = d3.scale.linear() | |
| .domain([d3.min(lifeExpectancy), d3.max(lifeExpectancy)]) | |
| .range([0, graphWidth]); | |
| var yScale = d3.scale.linear() | |
| .domain([d3.max(fertilityRate), 0]) | |
| .range([0, graphHeight]); | |
| var popDomain = [d3.min(population), d3.max(population)]; | |
| var popScale = d3.scale.linear() | |
| .domain(popDomain) | |
| .range([minBubbleSize, maxBubbleSize]); | |
| var uniqueRegions = d3.set(regions).values(); | |
| var regionColorMap = d3.scale.ordinal() | |
| .domain(uniqueRegions) | |
| .range(d3.scale.category10().range()); | |
| var svg = d3.select('body') | |
| .append('svg') | |
| .attr('width', totalWidth) | |
| .attr('height', totalHeight); | |
| var yAxis = d3.svg.axis().scale(yScale).orient('left'); | |
| var yAxisNodes = svg.append('g') | |
| .attr('transform', 'translate(' + (margin.left - axisPadding) + ',' + margin.top + ')') | |
| .call(yAxis); | |
| styleAxisNodes(yAxisNodes); | |
| var xAxis = d3.svg.axis().scale(xScale).orient('bottom'); | |
| var xAxisNodes = svg.append('g') | |
| .attr('transform', 'translate(' + margin.left + ',' + (totalHeight - margin.bottom + axisPadding) + ')') | |
| .call(xAxis); | |
| styleAxisNodes(xAxisNodes); | |
| var yearLabel = svg.append('g') | |
| .append('text') | |
| .attr('transform', 'translate(40, 450)') | |
| .attr('font-size', '75'); | |
| var bubblesHolder = svg.append("g"); | |
| var interval = 100; | |
| function render(year) { | |
| var dataForYear = nested[year]; | |
| var bubbles = bubblesHolder | |
| .selectAll("circle") | |
| .data(dataForYear, function (datum) { | |
| return datum.CountryCode; | |
| }); | |
| bubbles.enter() | |
| .append("circle") | |
| .each(setItemAttributes); | |
| bubbles | |
| .transition() | |
| .duration(interval) | |
| .each(setItemAttributes); | |
| bubbles.exit().remove(); | |
| yearLabel.text(year); | |
| }; | |
| function setItemAttributes(d) { | |
| d3.select(this).attr({ | |
| cx: xScale(d.LifeExp), | |
| cy: yScale(d.FertRate), | |
| r: popScale(d.Population), | |
| style: "fill:" + regionColorMap(d.Region) + ";" + | |
| "fill-opacity:0.5;" + | |
| "stroke:" + regionColorMap(d.Region) + ";" | |
| }); | |
| }; | |
| var minYear = d3.min(data, function (d) { return d.Year; }); | |
| var maxYear = d3.max(data, function (d) { return d.Year; }); | |
| var currentYear = minYear; | |
| render(currentYear); | |
| var callback = function () { | |
| return function () { | |
| currentYear++; | |
| console.log(currentYear); | |
| if (currentYear <= maxYear) { | |
| render(currentYear); | |
| d3.timer(callback(), interval); | |
| } | |
| return true; | |
| } | |
| } | |
| d3.timer(callback(), interval); | |
| }); | |
| function styleAxisNodes(axisNodes) { | |
| axisNodes.selectAll('.domain') | |
| .attr({ | |
| fill: 'none', | |
| 'stroke-width': 1, | |
| stroke: 'black' | |
| }); | |
| axisNodes.selectAll('.tick line') | |
| .attr({ | |
| fill: 'none', | |
| 'stroke-width': 1, | |
| stroke: 'black' | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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