On Tue, 2011-01-18 at 10:06 -0700, Kyle Shannon wrote:
> Gavin, > Is GDAL_DATA environment variable set on the Fedora system? yip: GDAL_DATA=/opt/gdal_data > > > > On Tue, Jan 18, 2011 at 04:15, Gavin <ga...@afrispatial.co.za> wrote: > > gdalwarp with -t_srs 'EPSG:3857' produces expected output on > one system but not on another. It seems gdal can't find the > projection definition on System 2 (below). System 2 is the one > where I need it to work and where I ultimately need to publish > as 900913 through geoserver. > > What am I missing? > > This command was run on both systems (both have gdal 1.7 and > proj 4.9.1): > > gdalwarp -s_srs "+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=0 > +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs" -t_srs > 'EPSG:3857' -r near -multi -dstnodata "0 0 0" -dstnodata "0 0 > 0" -dstalpha -co COMPRESS="DEFLATE" -co "TILED=YES" -of GTiff > 2627BB_05_1117_RGB_RECT.TIF /tmp/test900913.tif > > Geotiff header output: > > System1 (Ubuntu 10.10): > > > Driver: GTiff/GeoTIFF > Files: /tmp/test.tif > Size is 10749, 11713 > Coordinate System is: > PROJCS["WGS 84 / Pseudo-Mercator", > 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"]], > PROJECTION["Mercator_1SP"], > PARAMETER["central_meridian",0], > PARAMETER["scale_factor",1], > PARAMETER["false_easting",0], > PARAMETER["false_northing",0], > AUTHORITY["EPSG","3857"], > EXTENSION["PROJ4","+proj=merc +a=6378137 > +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 > +k=1.0 +units=m +nadgrids=@null +wktext +no_defs"], > UNIT["metre",1, > AUTHORITY["EPSG","9001"]]] > Origin = > (3111167.042467535007745,-2998912.428198689594865) > Pixel Size = (0.557611099232479,-0.557611099232479) > Metadata: > AREA_OR_POINT=Area > Image Structure Metadata: > COMPRESSION=DEFLATE > INTERLEAVE=PIXEL > Corner Coordinates: > Upper Left ( 3111167.042,-2998912.428) > ( 27d56'53.12"E, 25d59'55.10"S) > Lower Left ( 3111167.042,-3005443.727) > ( 27d56'53.12"E, 26d 3'4.90"S) > Upper Right ( 3117160.804,-2998912.428) ( 28d > 0'6.95"E, 25d59'55.10"S) > Lower Right ( 3117160.804,-3005443.727) ( 28d > 0'6.95"E, 26d 3'4.90"S) > Center ( 3114163.923,-3002178.078) > ( 27d58'30.04"E, 26d 1'30.01"S) > > > System 2 (Fedora 10): > > > Driver: GTiff/GeoTIFF > Files: test3857.tif > Size is 10749, 11713 > Coordinate System is: > PROJCS["unnamed", > GEOGCS[, > DATUM["unknown", > SPHEROID["unretrievable - using > WGS84",6378137,298.257223563]], > PRIMEM["Greenwich",0], > UNIT["degree",0.0174532925199433]], > UNIT["metre",1, > AUTHORITY["EPSG","9001"]], > AUTHORITY["EPSG","3857"]] > Origin = > (3111167.042467534542084,-2998912.428198689594865) > Pixel Size = (0.557611099232459,-0.557611099232459) > Metadata: > AREA_OR_POINT=Area > Image Structure Metadata: > COMPRESSION=DEFLATE > INTERLEAVE=PIXEL > Corner Coordinates: > Upper Left ( 3111167.042,-2998912.428) > Lower Left ( 3111167.042,-3005443.727) > Upper Right ( 3117160.804,-2998912.428) > Lower Right ( 3117160.804,-3005443.727) > Center ( 3114163.923,-3002178.078) > > > > thanks > > Gavin > > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > >
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