Just stripping down and tweaking Bostock's example to animate between Voronoi sites and polygons by clipping the site circle to the polygon and blowing up the radius. Silly and simple but I do like that it illustrates what a Voronoi tessellation is! ’Cuz every circle hits the bound against a well-matched antagonist.
-
-
Save tophtucker/26b8e7e35da08ec30d5a47dc8fe6aaba to your computer and use it in GitHub Desktop.
Animate Voronoi site to cell
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.
Learn more about bidirectional Unicode characters
| license: gpl-3.0 |
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.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <svg width="960" height="500"></svg> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var svg = d3.select("svg"), | |
| width = +svg.attr("width"), | |
| height = +svg.attr("height"); | |
| var sites = d3.range(100) | |
| .map(function(d) { return [Math.random() * width, Math.random() * height]; }); | |
| var voronoi = d3.voronoi() | |
| .extent([[-1, -1], [width + 1, height + 1]]); | |
| var polygon = svg.append("defs") | |
| .selectAll("clipPath") | |
| .data(voronoi.polygons(sites)) | |
| .enter().append("clipPath") | |
| .attr("id", function(d,i) { return "clip" + i; }) | |
| .append("path") | |
| .attr("d", function(d) { return d ? "M" + d.join("L") + "Z" : null; }); | |
| var site = svg.append("g") | |
| .selectAll("circle") | |
| .data(sites) | |
| .enter().append("circle") | |
| .attr("r", 2.5) | |
| .attr("cx", function(d) { return d[0]; }) | |
| .attr("cy", function(d) { return d[1]; }) | |
| .attr("clip-path", function(d,i) { return "url(#clip" + i + ")"; }) | |
| .attr("fill", function() { return "#" + Math.random().toString(16).slice(2, 8); }) | |
| .transition() | |
| .delay(500) | |
| .duration(5000) | |
| .attr("r", getMaxLinkDistance(voronoi.links(sites))); | |
| function getMaxLinkDistance(links) { | |
| return d3.max(links.map(function(d) { | |
| return Math.sqrt( | |
| Math.pow(d.target[0] - d.source[0],2) + | |
| Math.pow(d.target[1] - d.source[1],2) | |
| ); | |
| })); | |
| } | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment