Cycle digram with d3.js.
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Created
June 19, 2016 16:54
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Cycle Diagram
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script data-require="[email protected]" data-semver="3.5.3" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.js"></script> | |
| <script src="//labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script> | |
| <style> | |
| body { | |
| font: 12px sans-serif; | |
| } | |
| .d3-tip { | |
| line-height: 1; | |
| font-weight: bold; | |
| padding: 12px; | |
| background: rgba(0, 0, 0, 0.8); | |
| color: #fff; | |
| border-radius: 2px; | |
| pointer-events: none; | |
| } | |
| /* Creates a small triangle extender for the tooltip */ | |
| .d3-tip:after { | |
| box-sizing: border-box; | |
| display: inline; | |
| font-size: 10px; | |
| width: 100%; | |
| line-height: 1; | |
| color: rgba(0, 0, 0, 0.8); | |
| position: absolute; | |
| pointer-events: none; | |
| } | |
| /* Westward tooltips */ | |
| .d3-tip.w:after { | |
| content: "\25B6"; | |
| margin: -4px 0 0 -1px; | |
| top: 50%; | |
| left: 100%; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var data = [{ | |
| label: 'one', | |
| children: ['all', 'the', 'rain'] | |
| }, { | |
| label: 'two', | |
| children: ['fails', 'mainly'] | |
| }, { | |
| label: 'three', | |
| children: ['on', 'the', 'plains'] | |
| }, { | |
| label: 'four', | |
| children: ['now', 'is', 'the'] | |
| }, { | |
| label: 'five', | |
| children: ['time', 'for', 'all'] | |
| }, { | |
| label: 'seven', | |
| children: ['good', 'men', 'to'] | |
| }, { | |
| label: 'eight', | |
| children: ['come', 'to', 'the'] | |
| }, { | |
| label: 'nine', | |
| children: ['aid', 'of their', 'country'] | |
| }], | |
| width = 500, | |
| height = 500, | |
| c = Math.min(width, height) / 2, | |
| ro = Math.min(width, height) / 2 - (c * .3), | |
| ri = Math.min(width, height) / 2 - (c * .6), | |
| a = (Math.PI * 2) / data.length, | |
| colors = d3.scale.category10(); | |
| var tip = d3.tip() | |
| .attr('class', 'd3-tip') | |
| .direction('w') | |
| .html(function(d) { | |
| return d.children.join(" ") | |
| }); | |
| var arc = d3.svg.arc() | |
| .innerRadius(ri) | |
| .outerRadius(ro); | |
| var svg = d3.select('body') | |
| .append('svg') | |
| .attr('width', 500) | |
| .attr('height', 500) | |
| .call(tip); | |
| svg = svg.append('g') | |
| .attr('transform', 'translate(' + c + ',' + c + ')') | |
| var arcs = svg.selectAll('.cycle') | |
| .data(data); | |
| var arcsG = arcs.enter() | |
| .append('g') | |
| .attr('class', 'cycle'); | |
| arcsG | |
| .append("path") | |
| .attr('class', 'cycle') | |
| .style('fill', function(d, i) { | |
| return colors(i); | |
| }) | |
| .attr("id", function(d) { | |
| return "path" + d.label; | |
| }) | |
| .attr("d", function(d, i) { | |
| arc.startAngle(a * i); | |
| arc.endAngle(a * (i + 1)); | |
| d.centroid = arc.centroid(); | |
| return arc(); | |
| }) | |
| .on('mouseover', tip.show) | |
| .on('mouseout', tip.hide); | |
| arcsG | |
| .append("text") | |
| .attr("transform", function(d) { | |
| return "translate(" + d.centroid + ")"; | |
| }) | |
| .text(function(d) { | |
| return d.label; | |
| }) | |
| .style("fill", "white") | |
| .style("text-anchor", "middle") | |
| .style("alignment-baseline", "middle") | |
| .style("pointer-events", "none"); | |
| // draw arrow heads last so they end up on top | |
| arcs | |
| .enter() | |
| .append('polygon') | |
| .attr("points", function(d, i) { | |
| var sta = a * i, | |
| spa = a * (i + 1); | |
| // determine points for arrowhead | |
| arrowHead = [Math.cos(spa - Math.PI / 2) * (ri - 15), Math.sin(spa - Math.PI / 2) * (ri - 15)] + ' '; | |
| arrowHead += [Math.cos(spa - Math.PI / 2) * (ro + 15), Math.sin(spa - Math.PI / 2) * (ro + 15)] + ' '; | |
| arrowHead += [Math.cos(spa - Math.PI / 2 + ((spa - sta) / 4)) * (ri + (ro - ri) / 2), Math.sin(spa - Math.PI / 2 + ((spa - sta) / 4)) * (ri + (ro - ri) / 2)]; | |
| return arrowHead; | |
| }) | |
| .style("fill", function(d, i) { | |
| return colors(i); | |
| }) | |
| .style("stroke", function(d, i) { | |
| return colors(i); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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