[Gdal-dev] gdalwarp: target image extents are recognised wrong

Michael84 michael.timo.welsch at gmx.de
Mon Jul 16 13:58:05 EDT 2007


Hello,

I'm using gdalwarp to warp an image of 15862P x 19548L from UTM to Lat/Long.

gdalwarp -s_srs "+proj=UTM +zone=32 +datum=WGS84" -t_srs "+proj=latlong
+datum=WGS84" utm.tif latlong.tif

Gdalwarp then creates an image of 20491P x 15138L, instead of 15862P x
19548L or something with the same apect ratio!!! What could be the reason
for it ?

I know that providing the target size is one solution to this problem, but
it is not quite nice...
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