Jan Tosovsky <j.tosovsky <at> email.cz> writes: > > Dear All, > > when producing GeoTiff tiles from large GeoTiff that contains Corner > Coordinates: > Upper Left ( 1558426.488, 6800200.793) ( 13d59'58.50"E, 52d 0' 1.50"N) > Lower Left ( 1558426.488, 6446209.776) ( 13d59'58.50"E, 49d59'58.63"N) > Upper Right ( 2003776.864, 6800200.793) ( 18d 0' 0.84"E, 52d 0' 1.50"N) > Lower Right ( 2003776.864, 6446209.776) ( 18d 0' 0.84"E, 49d59'58.63"N) > > I am getting tiles with Corner Coordinates: > Upper Left ( 0.0, 0.0) > Lower Left ( 0.0, 256.0) > Upper Right ( 256.0, 0.0) > Lower Right ( 256.0, 256.0) > > I would expect that every tile contains a subset of the original coords. > > My command (GDAL 1.11.0): > gdal2tiles.py -v -z 6-7 warped.tif D:\OUTPUT > > How can I fix this?
Hi, You have wrong assumption about how gdal2tiles work. It does not create tiles which are individually georeferenced. Instead, it creates images and saves them to a directory structure which is well defined and whose metadata is published. In the documentation http://www.gdal.org/gdal2tiles.html it is written as "This utility generates a directory with small tiles and metadata, following the OSGeo Tile Map Service Specification". Similarly this OpenStreetMap tile is not georeferenced http://a.tile.openstreetmap.org/9/281/172.png. However, the tiling schema is known and because of that it is possible to know where tile number 9/281/172.png belongs. -Jukka Rahkonen- _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
