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Arc Corners III
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| license: gpl-3.0 | |
| redirect: https://observablehq.com/@d3/arc-corners |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .paths--straight { | |
| fill: none; | |
| stroke: #777; | |
| } | |
| .paths--round { | |
| fill: #ccc; | |
| stroke: #000; | |
| stroke-width: 1.5px; | |
| stroke-linejoin: round; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var data = [1, 1, 2, 3, 5, 8, 13, 21]; | |
| var width = 960, | |
| height = 500, | |
| outerRadius = height / 2 - 30, | |
| innerRadius = outerRadius / 3; | |
| var pie = d3.layout.pie() | |
| .padAngle(.03); | |
| var arc = d3.svg.arc() | |
| .innerRadius(innerRadius) | |
| .outerRadius(outerRadius); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| var straightPath = svg.append("g") | |
| .attr("class", "paths--straight") | |
| .selectAll("path") | |
| .data(data) | |
| .enter().append("path"); | |
| var roundPath = svg.append("g") | |
| .attr("class", "paths--round") | |
| .selectAll("path") | |
| .data(data) | |
| .enter().append("path"); | |
| var ease = d3.ease("cubic-in-out"), | |
| duration = 2500; | |
| d3.timer(function(elapsed) { | |
| var t = ease(1 - Math.abs((elapsed % duration) / duration - .5) * 2), | |
| arcs = pie(data); | |
| straightPath.data(arcs).attr("d", arc.cornerRadius(0)); | |
| roundPath.data(arcs).attr("d", arc.cornerRadius((outerRadius - innerRadius) / 2 * t)); | |
| }); | |
| </script> |
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