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D3 Pie chart with percentage outside
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| license: gpl-3.0 |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; text-align: center; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var data = [ | |
| {name: 'cats', count: 3, percentage: 2, color: '#000000'}, | |
| {name: 'dogs', count: 10, percentage: 8, color: '#f8b70a'}, | |
| {name: 'horses', count: 17, percentage: 15, color: '#6149c6'}, | |
| {name: 'goats', count: 47, percentage: 41, color: '#9f8170'}, | |
| {name: 'cows', count: 35, percentage: 31, color: '#8ABD4A'}, | |
| ]; | |
| var width = 540, | |
| height = 540, | |
| radius = 200; | |
| var arc = d3.arc() | |
| .outerRadius(radius - 10) | |
| .innerRadius(0); | |
| var pie = d3.pie() | |
| .sort(null) | |
| .value(function(d) { | |
| return d.count; | |
| }); | |
| var svg = d3.select('body').append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| var g = svg.selectAll(".arc") | |
| .data(pie(data)) | |
| .enter().append("g"); | |
| g.append("path") | |
| .attr("d", arc) | |
| .style("fill", function(d,i) { | |
| return d.data.color; | |
| }); | |
| g.append("text") | |
| .attr("transform", function(d) { | |
| var _d = arc.centroid(d); | |
| _d[0] *= 2.2; //multiply by a constant factor | |
| _d[1] *= 2.2; //multiply by a constant factor | |
| return "translate(" + _d + ")"; | |
| }) | |
| .attr("dy", ".50em") | |
| .style("text-anchor", "middle") | |
| .text(function(d) { | |
| if(d.data.percentage < 8) { | |
| return ''; | |
| } | |
| return d.data.percentage + '%'; | |
| }); | |
| </script> | |
| </body> |
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