First, instead of using GDAL 1.6.0 from December 2008, why not use GDAL 1.7.2 from April 2010? Second, since your objective is to create a tiled GeoTIFF, you can do that with one gdal_translate command. $ gdal_translate --version GDAL 1.7.2, released 2010/04/23 $ gdal_translate -of GTiff -ot Byte -co Compress=NONE \ -co TILED=YES -co BLOCKXSIZE=256 -co BLOCKXSIZE=256 \ 18stj940125.if 18stj940125_gdal_translate.tif Input file size is 5000, 5000 0...10...20...30...40...50...60...70...80...90...100 - done. Greg
On Jul 29, 2010, at 2:50 AM, Brett Walker wrote: > I’m trying to produce a tile matrix set from geocoded tiffs using > gdal2tiles.py but I am having trouble with the last step in the process. > > As an example I have a BSB file from NOAA which is a navigational map of Lake > Pend Oreille in Idaho. The map has a SRS of WGS84 and a Mercator projection. > > I initially translate the file from BSB format to GTiff format using the > following command: > > > gdal_translate -of GTiff noaa\18554_1.kap noaa.tif > > I can view this GTiff file using Paint Shop Pro quite fine. I then translate > the file from GTiff format to VRT format using the following command: > > > gdal_translate -of vrt –expand rgba noaa\noaa.tif noaa\noaa.vrt > > I then try to generate a tile matrix set using the following command: > > > gdal2tiles.py noaa\noaa.vrt noaa > > But get the follwoing error: > > > ERROR 1: failed to load NAD27-83 correction file > > ERROR 1: GDALSuggestedWarpOutput() failed because the passed > > transformer failed. > > usage: Usage: gdal2tiles.py [options] input_file(s) [output] > > > > gdal2tiles.py: error: Size of the pixel in the output differ for X and Y > > axes. > > Am I missing something? > > My system is Windows Vista (32-bit). I’m using GDAL v1.6.0 win32 binary, GDAL > v1.6.0 python package, PROJ4 v4.4.6 win32 binary, NumPy v1.2.1 for win32 and > Python v2.4.1 > I have set all the appropriate system variables and copied files to > approprate locations. This was done following the guidelinse > athttp://www.gis.usu.edu/~chrisg/python/2009/docs/gdal_win.pdf except that I > omitted steps 3f and 3g. > > Hope you can help. > Brett
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