What is OLHeatmap ?
OpenLayers Heatmap is a group of hacks to render heatmaps over OpenLayers. At this moment is very ugly and dirty but I have some ideas in mind to make this a more presentable project.
Why that name ?
OLHeatmap stands for OpenLayers Heatmap so the answer is: Lack of imagination, if you have a better one you can propose a change.
Motivation
In the second semester of 2009 I was asked to do a project (as a student) for a class (imparted by Hernán Astudillo) at UTFSM. After several rejected proposals I found this idea. In the first stage I was trying to make heatmaps on server side. After some trials I decide to use a Javascript + HTML5 + canvas approach. Also I was thinking of make this only for OSM project, but after watch it working I found that it was not a problem use it for any map that supports OpenLayers.
News :
2010-07-20: First version release