id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
2393,gdalwarp fails when converting from Mercator spherical (recent break),jluis,warmerdam,"
FWtools 2.2.0 and trunk (or 1.5.2) versions of gdalwarp are giving different results when converting from a Mercator spherical geotiff file.
The FWtools version result is correct, which indicates that the error results from a recent modification


------------ The trunk solution (wrong)
gdalwarp -t_srs ""+proj=latlong +datum=WGS84"" alg_merc.tiff alg_geo.tiff
Creating output file that is 565P x 452L.                                                          <===   NOTE the 565P

Upper Left  (  -8.0862815,  37.3460021) (  8d 5'10.61""W, 37d20'45.61""N)
Lower Left  (  -8.0862815,  37.0644230) (  8d 5'10.61""W, 37d 3'51.92""N)
Upper Right (  -7.7343076,  37.3460021) (  7d44'3.51""W, 37d20'45.61""N)
Lower Right (  -7.7343076,  37.0644230) (  7d44'3.51""W, 37d 3'51.92""N)
Center      (  -7.9102945,  37.2052125) (  7d54'37.06""W, 37d12'18.77""N)

------------ FWtools 2.2.0 solution (correct)
gdalwarp -t_srs ""+proj=latlong +datum=WGS84"" alg_merc.tiff alg_geo.tiff
Creating output file that is 566P x 452L.                                                         <===   BUT NOW 566P

Upper Left  (  -8.0862815,  37.1605907) (  8d 5'10.61""W, 37d 9'38.13""N)
Lower Left  (  -8.0862815,  36.8792107) (  8d 5'10.61""W, 36d52'45.16""N)
Upper Right (  -7.7339340,  37.1605907) (  7d44'2.16""W, 37d 9'38.13""N)
Lower Right (  -7.7339340,  36.8792107) (  7d44'2.16""W, 36d52'45.16""N)
Center      (  -7.9101077,  37.0199007) (  7d54'36.39""W, 37d 1'11.64""N)


",defect,closed,normal,,GDAL_Raster,svn-trunk,normal,invalid,,