Hi Even, thanks for your reply ! On one side I had : proj-4.7.0-1.el6.rf.x86_64
On the other (on the computer with expecting results) : proj-4.8.0-3.el6.x86_64 With the same versions, I get the same results ! Thanks a lot ! -----Message d'origine----- De : Even Rouault [mailto:[email protected]] Envoyé : vendredi 24 octobre 2014 10:28 À : VILLARD, Pierre Cc : [email protected] Objet : Re: [gdal-dev] gdalwarp giving two different results with the same input Le vendredi 24 octobre 2014 09:35:30, vous avez écrit : > Hi, > > I am using GDAL (GDAL 1.9.2, released 2012/10/08) to change of EPSG > referential on a GeoTiff file. I do the exact same command on two > different computers (with the same version of GDAL and tiff libraries). > And I get two different results... I am out of options, any idea ? Any > place I should have a look ? Pierre, In case you did several attempts on computer B, did you erase output.tif before re-running gdalwarp ? gdalwarp will not do it (this is the mosaicing mode onto an existing target), unless you specify -overwrite. Is the O.S., architecture and binary distribution of GDAL the same on both computers ? Otherwise the other potential suspects might be the GDAL_DATA environment variable not defined or pointing to a wrong directory. Or different proj.4 versions. Even > > Command : > > gdalwarp -s_srs EPSG:3975 -t_srs EPSG:4326 input.tif output.tif > > Input file : > > Driver: GTiff/GeoTIFF > Files: input.tif > Size is 1388, 584 > Coordinate System is `' > Origin = (-17321655.543400000780821,7332251.365589999593794) > Pixel Size = (24959.157843515851710,-25110.449882157532556) > Metadata: > lat#_FillValue=9.96921e+36 > lat#long_name=latitude > lat#units=degrees_north > lon#_FillValue=9.96921e+36 > lon#long_name=longitude > lon#units=degrees_east > NC_GLOBAL#conventions=CF-1.4 > NC_GLOBAL#creation_date=2014-10-20T16:12:01 > NC_GLOBAL#datum=+ellps = WGS84 > NC_GLOBAL#ease_global=yes > NC_GLOBAL#ease_origin_lat=-83.517136 > NC_GLOBAL#ease_origin_lon=-179.87032 > NC_GLOBAL#ease_projection=cylindrical > NC_GLOBAL#ease_resolution=25 > NC_GLOBAL#grip_mapping=projection > NC_GLOBAL#history=none > NC_GLOBAL#institution=SMOS CATDS Processing Chain > NC_GLOBAL#netcdf_version_id=3.6.2 > NC_GLOBAL#product_version=1.0 > NC_GLOBAL#proj4text=+proj=cea +lon_0=0 +lat_ts=30 +x_0=0 +y_0=0 > +ellps=WGS84 +units=m +no_defs NC_GLOBAL#srid=EPSG:3975 > Image Structure Metadata: > INTERLEAVE=BAND > Corner Coordinates: > Upper Left (-17321655.543, 7332251.366) Lower Left > (-17321655.543,-7332251.366) Upper Right (17321655.543, 7332251.366) > Lower Right (17321655.543,-7332251.366) > Center ( 0.0000000, 0.0000000) > Band 1 Block=1388x1 Type=Float64, ColorInterp=Gray > > On computer A (the result I am expecting) : > > Driver: GTiff/GeoTIFF > Files: output.tif > Size is 1355, 657 > Coordinate System is: > GEOGCS["WGS 84", > DATUM["WGS_1984", > SPHEROID["WGS 84",6378137,298.257223563, > AUTHORITY["EPSG","7030"]], > AUTHORITY["EPSG","6326"]], > PRIMEM["Greenwich",0], > UNIT["degree",0.0174532925199433], > AUTHORITY["EPSG","4326"]] > Origin = (-179.524544819822239,87.025797325816669) > Pixel Size = (0.264973369536817,-0.264973369536817) > Metadata: > AREA_OR_POINT=Area > Image Structure Metadata: > INTERLEAVE=BAND > Corner Coordinates: > Upper Left (-179.5245448, 87.0257973) (179d31'28.36"W, 87d > 1'32.87"N) Lower Left (-179.5245448, -87.0617065) (179d31'28.36"W, > 87d 3'42.14"S) Upper Right ( 179.5143709, 87.0257973) > (179d30'51.74"E, 87d 1'32.87"N) Lower Right ( 179.5143709, -87.0617065) > (179d30'51.74"E, 87d 3'42.14"S) > Center ( -0.0050870, -0.0179546) ( 0d 0'18.31"W, 0d 1' 4.64"S) > Band 1 Block=1355x1 Type=Float64, ColorInterp=Gray > > On computer B : > > Driver: GTiff/GeoTIFF > Files: output.tif > Size is 1358, 651 > Coordinate System is: > GEOGCS["WGS 84", > DATUM["WGS_1984", > SPHEROID["WGS 84",6378137,298.257223563, > AUTHORITY["EPSG","7030"]], > AUTHORITY["EPSG","6326"]], > PRIMEM["Greenwich",0], > UNIT["degree",0.0174532925199433], > AUTHORITY["EPSG","4326"]] > Origin = (-179.674959335984454,86.219877359659435) > Pixel Size = (0.264688310439600,-0.264688310439600) > Metadata: > AREA_OR_POINT=Area > Image Structure Metadata: > INTERLEAVE=BAND > Corner Coordinates: > Upper Left (-179.6749593, 86.2198774) (179d40'29.85"W, > 86d13'11.56"N) Lower Left (-179.6749593, -86.0922127) > (179d40'29.85"W, 86d 5'31.97"S) Upper Right ( 179.7717662, > 86.2198774) (179d46'18.36"E, 86d13'11.56"N) Lower Right ( 179.7717662, > -86.0922127) (179d46'18.36"E, 86d 5'31.97"S) > Center ( 0.0484035, 0.0638323) ( 0d 2'54.25"E, 0d 3'49.80"N) > Band 1 Block=1358x1 Type=Float64, ColorInterp=Gray > > Thanks for your help ! > Regards, > Pierre. > This message contains information that may be privileged or > confidential and is the property of the Capgemini Group. 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