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Rotating Equirectangular

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Mmbostock
Last edited Feb 9, 2016
Created on Sep 16, 2012

This example displays the world map using an equirectangular projection that continuously rotates horizontally. The visualization is rendered on an HTML5 Canvas element using the D3.js v3 and TopoJSON libraries, with a timer-driven animation. The projection’s rotation angle updates over time based on elapsed milliseconds, clearing and redrawing the filled land polygons each frame. World geometry comes from a remote GeoJSON file of 110-meter resolution, processed with `topojson.feature` and drawn via `d3.geo.path` with Canvas context.

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gpl-3.0 Licensed

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