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Dear list,<br><br>I have two rasters with elevation data (DEM and buildings, both floating point) which I would like to overlay so that the resulting raster obtains the summarized z-values of both rasters. <br>So I tried the r.patch and the r.mapcalculator with the result of just <physically> overlaid layers. E.g. at one cell where the DEM holds the z-value 435.0 m and the building raster the z-value 10.1 there still remain the 435.1 m in the resulting raster. <br>In case of r.mapcalculator, I used the Layer A + Layer B option. <br><br>How can I get the summarized values of both raster layers?<br><br>Regards<br><br>Christian<br><br /><hr />Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! <a href='http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us' target='_new'>Try it!</a></body>
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