Hi Robert, I was just playing with the new version of VirtualPlanetBuilder from SVN and I noticed that the vertical scale is ignored when it is set via the commandline or automatically in the prepareForDestinationGraphCreation method in Dataset.cpp when the destination coordinate system is GEOGRAPHIC and you are not exporting a geocentric database (scaling meters to degrees).
The issue stems from the block of code in readHeightField in SourceData.cppthat first attempts to get the scale from the GDALRasterBand and then tries to fall back to the DataSet's vertical scale if there is no scale in the GDALRasterBand. I believe that most GDAL drivers will just return 1 with success being true, so the code to check the vertical scale from the DataSet is never called. This means you get the typical spiky osgdem output in which X and Y are in degrees and Z is in meters. One way that this could be fixed is to first check the Dataset to see if a vertical scale has been set and then fall back to the GDALRasterBand scale. Thanks! Jason
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