[gdal-dev] gdal2tiles tile origin differences

2015-05-05 Thread Matt Briggs
Hi, I am getting different X and Y values for tiles from gdal2tiles.py when in a PC (OSGeo4W - GDAL 1.9.2) environment and Linux (GDAL 1.10.1).  It seems to me that the newer 1.10.2 x's and y's are wrong (not respecting the specified origin). Is this a bug, which result is correct, and how

Re: [gdal-dev] GDAL slow to write GeoTIFF?

2015-05-05 Thread Graeme B. Bell
Gdal doesn't do well with ultra-large rasters in my experience. Locally we split our rasters up into tiles, process tiles in parallel with Gnu Parallel, then use gdal_merge or gdalwarp to join them back together (usually gdal_merge is faster). This usually brings our processing times on high re