Created
November 6, 2017 14:15
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Bubble plot, d3.js version 4
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| </head> | |
| <body> | |
| <script src="http://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://d3js.org/d3-selection-multi.v1.min.js"></script> | |
| <script> | |
| var url = "https://gist.githubusercontent.com/d3byex/30231953acaa9433a46f/raw/6c7eb1c562de92bdf8d0cd99c6912048161c187e/fert_pop_exp.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 | |
| } | |
| }); | |
| 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.scaleLinear() | |
| .domain([d3.min(lifeExpectancy), d3.max(lifeExpectancy)]) | |
| .range([0, graphWidth]); | |
| var yScale = d3.scaleLinear() | |
| .domain([d3.max(fertilityRate), 0]) | |
| .range([0, graphHeight]); | |
| var popDomain = [d3.min(population), d3.max(population)]; | |
| var popScale = d3.scaleLinear() | |
| .domain(popDomain) | |
| .range([minBubbleSize, maxBubbleSize]); | |
| var uniqueRegions = d3.set(regions).values();// return only unique values | |
| var regionColorMap = d3.scaleOrdinal() | |
| .domain(uniqueRegions) | |
| .range(d3.schemeCategory10); | |
| var svg = d3.select("body").append('svg') | |
| .attr('width', totalWidth) | |
| .attr('height', totalHeight); | |
| var yAxis = d3.axisLeft(yScale); | |
| var yAxisNodes = svg.append('g') | |
| .attr('transform', 'translate(' + (margin.left - axisPadding) + ',' + margin.top + ')') | |
| .call(yAxis); | |
| styleAxisNodes(yAxisNodes); | |
| var xAxis = d3.axisBottom(xScale); | |
| var xAxisNodes = svg.append('g') | |
| .attr('transform', 'translate(' + margin.left + ',' + (totalHeight - margin.bottom + axisPadding) + ')') | |
| .call(xAxis); | |
| styleAxisNodes(xAxisNodes); | |
| svg.append('g') | |
| .attr('transform', 'translate(' + margin.left + ',' + margin.top + ')') | |
| .selectAll('circle') | |
| .data(data) | |
| .enter() | |
| .append('circle') | |
| .each(function (d) { | |
| d3.select(this).attrs({ | |
| cx: xScale(d.LifeExp), | |
| cy: yScale(d.FertRate), | |
| r: popScale(d.Population), | |
| fill: regionColorMap(d.Region), | |
| stroke: regionColorMap(d.Region), | |
| 'fill-opacity': 0.5 | |
| }); | |
| }); | |
| }); | |
| 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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