Hedekort ... og det er altså ikke den jydske ...
Heat maps are hot ...
Johannes’ second article, “Creating Heat Maps with Virtual Earth and SQL Server 2008” illustrates how to take information from SQL Server 2008 (he’s quite the expert) and create a rasterized heat map which can then be geo-annotated (using Map Cruncher or based on theVirtual Earth Tile System documentation) and overlain atop a Virtual Earth-based application. Although there is another layer (and, there can be many layers!) this map is still interactive in that you can overlay vector information or grab lat/lons for spatial analysis.
Lastly, a while back Danyel Fisher from Microsoft Research published “Hotmap: Looking at Geographic Attention” which discussed the create of a heat map tool for tracking web site traffic. In fact, there’s a demonstration of this application online dubbed, “Hotmap: The Use of Virtual Earth” which “shows where people have looked at when using Virtual Earth, the engine that powers Live Search Maps: the darker a point, the more times it has been downloaded.”
Read more: http://blogs.msdn.com/virtualearth/archive/2008/12/02/thematic-mapping-and-heat-maps-with-virtual-earth.aspx