Hi, a while ago I wrote an application using gdal_translate to translate tags in a geotiff image. I used the following command: gdal_translate -a_srs $tagfn $infn $outfn where $tagfn is the file used to modify the tags, $infn is the input filename and $outfn is the output file name (with the tags required). I am running the same program with FWTools 2-0.6 on a new host. I noticed by running the gdalinfo that there are significant differences in Coordinate System between the 2 versions. I am no expert on the Geotiff area so, I cannot comprehend what changes done to GDAL might be affecting this translation. Any idea on how to resolve this issue would be apreciated.
Thanks Isidora [email protected] * With 1.1.3*: *Driver: GTiff/GeoTIFF Files: WO_SATIR_00_21Z.tif_denwxp1 Size is 7479, 3033 Coordinate System is: GEOGCS["unnamed", DATUM["unknown", SPHEROID["unretrievable - using WGS84",6378137,298.257223563]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925199433]] Origin = (-179.999899999999997,73.000000000000000) Pixel Size = (0.048132577673166,-0.048139266469396) Metadata: AREA_OR_POINT=Area Image Structure Metadata: INTERLEAVE=BAND * *With 2-0.6* *Driver: GTiff/GeoTIFF Files: WO_SATIR_00_21Z.tif Size is 7479, 3033 Coordinate System is: LOCAL_CS["unnamed", UNIT["metre",1, AUTHORITY["EPSG","9001"]]] Origin = (-179.999899999999997,73.000000000000000) Pixel Size = (0.048132577673166,-0.048139266469396) Metadata: AREA_OR_POINT=Area Image Structure Metadata: INTERLEAVE=BAND* *This is $tagfn:* *Geotiff_Information: Version: 1 Key_Revision: 1.0 Tagged_Information: ModelTiepointTag (2,3): 0 0 0 -179.9999 73 0 ModelPixelScaleTag (1,3): 0.0481125224 0.0481125224 0 End_Of_Tags. Keyed_Information: GTModelTypeGeoKey (Short,1): ModelTypeGeographic GTRasterTypeGeoKey (Short,1): RasterPixelIsArea GTCitationGeoKey (Ascii,8): "unnamed" GeographicTypeGeoKey (Short,1): GCS_WGS_84 GeogCitationGeoKey (Ascii,8): "unnamed" GeogAngularUnitsGeoKey (Short,1): Angular_Degree ProjectedCSTypeGeoKey (Short,1): User-Defined ProjectionGeoKey (Short,1): User-Defined ProjCoordTransGeoKey (Short,1): CT_Equirectangular ProjLinearUnitsGeoKey (Short,1): User-Defined ProjLinearUnitSizeGeoKey (Double,1): 0.0174532925 ProjFalseEastingGeoKey (Double,1): 0 ProjFalseNorthingGeoKey (Double,1): 0 ProjCenterLongGeoKey (Double,1): 142 ProjCenterLatGeoKey (Double,1): 30 End_Of_Keys. End_Of_Geotiff. Projection Method: CT_Equirectangular ProjCenterLatGeoKey: 30.000000 ( 30d 0' 0.00"N) ProjCenterLongGeoKey: 142.000000 (142d 0' 0.00"E) ProjFalseEastingGeoKey: 0.000000 m ProjFalseNorthingGeoKey: 0.000000 m GCS: 4326/WGS 84 Datum: 6326/World Geodetic System 1984 Ellipsoid: 7030/WGS 84 (6378137.00,6356752.31) Prime Meridian: 8901/Greenwich (0.000000/ 0d 0' 0.00"E) Corner Coordinates: Upper Left ( -180.000, 73.000) (141d59'53.28"E, 0d 0' 2.36"N) Lower Left ( -180.000, -73.022) (141d59'53.28"E, 0d 0' 2.36"S) Upper Right ( 179.978, 73.000) (142d 0' 6.72"E, 0d 0' 2.36"N) Lower Right ( 179.978, -73.022) (142d 0' 6.72"E, 0d 0' 2.36"S) Center ( -0.011, -0.011) (141d60' 0.00"E, 0d 0' 0.00"S)*
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