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Friday, 28 August 2015

How to create a heatmap on the map using JavaScript, Openlayers and canvas

This article is a continuation of the article “Heatmap and Interpolation: it is easy in OpenWebGIS” about creation of Heatmap and Interpolation with the help of OpenWebGIS interface. We are now describing the process of creating a heatmap, based on any point layer, using JavaScript, OpenLayers 2.x and canvas element (as part of HTML5 technology). 
Please read  more about it in my article here:Heatmap, JavaScript, Openlayers and canvas


  1. very interesting. the heat seems to be located in the human populated areas.

    1. Yes. The heatmap on the title image is the number of population in the cities.