Matt Perry wote a gdal-based tool that will read a shapefile and create a heat-density raster from it. You can find it at <a href="http://perrygeo.googlecode.com/svn/trunk/gis-bin/point_density.py">http://perrygeo.googlecode.com/svn/trunk/gis-bin/point_density.py</a>. If you already have a raster with these values, then you can use the info at <a href="http://mapserver.org/input/raster.html#how-are-rasters-added-to-a-map-file">http://mapserver.org/input/raster.html#how-are-rasters-added-to-a-map-file</a> (look for the "classifying rasters" section).<br>
<br>Roger<br>--<br><br><br><br><div class="gmail_quote">On Sun, Jan 4, 2009 at 12:15 PM, Donald Kerr <span dir="ltr"><<a href="mailto:donald.kerr@dkerr.co.uk" target="_blank">donald.kerr@dkerr.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I am assuming that someone has tackled the subject of heatmap overlays in<br>
MapServer. If anyone has any information they can give me or maybe point me<br>
in the right direction, it would be much appreciated. An alternative might<br>
be something for OpenLayers with a MapServer/KaMap behind it. Again, any<br>
info appreciated.<br>
<br>
Many thanks.<br>
<br>
Regards,<br>
<br>
Donald Kerr<br>
<br>
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</blockquote></div><br>