Am 2013-07-03 16:53, schrieb Even Rouault:
Le mercredi 03 juillet 2013 16:17:14, Frank Broniewski a écrit :
Hi all,
I'm trying to warp a XYZ Grid to another CRS. My GDAL complains while
running:
gdalwarp -t_srs EPSG:3035 -of XYZ /tmp/tmpU7lQR2/in.xyz
/tmp/tmpU7lQR2/out.xyz
Output driver `XYZ' not recognised or does not support
direct output file creation.
Yes, XYZ format doesn't support random write access. You need to use an
intermediary format such as GTiff or HFA for example
gdalwarp -t_srs EPSG:3035 /tmp/tmpU7lQR2/in.xyz temp.tif
gdal_translate -of XYZ temp.tif /tmp/tmpU7lQR2/out.xyz
GTiff doesn't work well, because there are always distortions at the end
of the process from the reprojection back and forth process
Meanwhile, and I could hammer myself for that, I found the hint at the
mdenoise site stating that cs2cs could be used to reproject XYZ files:
cs2cs +init=epsg:4326 +to +init=epsg:3035 03_N49E006_dn_trl_xyz.xyz >
epsg3035.xyz
does the trick ...
Frank
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Frank BRONIEWSKI
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