Greetings all,
I think there's something I don't know about how Digital Elevation
Models work.
I have imported models from srtm.csi.cgiar.org, using ASCII downloads.
To import the models, I'm using r.in.gdal.
If I import the model to a new location, everything looks fine, and if I
query the imported map, I get results that make sense. For eg:
r.what -f [EMAIL PROTECTED] east_north=151.3524554,-30.85835173
returns:
151.3524554 -30.85835173 1026
(I have taken out the | delimiters to make it more legible)
But if I then import a different DEM tile from the same site, in the
same format, and load it into the same location, it loads without the
elevation. Hence:
r.what -f [EMAIL PROTECTED] east_north=119.2521986,-30.56112713
returns results like:
119.2521986 -30.56112713 *
If I load the second DEM into a new location, it will work fine but no
other DEMs will show their elevation data.
Can anyone provide suggestions as to the likely cause?
Richard Chirgwin
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