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Aandrewxhill
Last edited Jun 17, 2015
Created on Jun 17, 2015

This example demonstrates Torque, a CartoCSS compiler that renders animated point data directly on HTML canvas in the browser, bypassing server-side Mapnik processing for responsive visualizations. The code shows how CartoCSS rules are translated into canvas drawing instructions, with markers rendered efficiently using Sprites generated at runtime. It includes static torque maps, animated bubble maps that change size over time, and a non-map visualization, all leveraging the Torque library’s shader and cartocss_reference.js APIs. The approach keeps data client-side, enabling fast, interactive rendering of temporal geospatial data.

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