Simplified Gosper regions

A test for Visvalingam simplification applied to Gosper regions. Mouseover to control the simplification.

The code uses the TopoJSON API as in this Mike Bostock's example to obtain a topology-preserving simplification (regions are simplified together). If regions were simplified one by one, artifacts (holes and overlaps) would have appeared along the common boundaries.

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<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>Simplified Gosper Regions</title>
        <link type="text/css" href="index.css" rel="stylesheet"/>
        <script src="https://d3js.org/d3.v3.min.js"></script>
        <script src="https://d3js.org/topojson.v1.min.js"></script>
        <script src="index.js"></script>
    </head>
    <body onload="main()"></body>
</html>
    

Modified http://d3js.org/d3.v3.min.js to a secure url

Modified http://d3js.org/topojson.v1.min.js to a secure url

https://d3js.org/d3.v3.min.js

https://d3js.org/topojson.v1.min.js