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Are there any JavaScript libraries out there that allow you to create heatmaps using in-browser graphic rendering features such as <canvas> or SVG?
I know about HeatMapAPI.com, but their heat maps are generated on the server side. I think that in the era of <canvas> element we don’t need that anymore!
If there is nothing like this yet, are there any volunteers to participate in creating such a tool?
I created a demo including a real-time heatmap with the
<canvas>element and javascript. I also added the documented code next to the heatmap sample. The heatmap generation process is based on an alpha map in the canvas element which depends on the users mouse movement.You can take a look at my demo right here:
http://www.patrick-wied.at/static/heatmap/