Hi, Unfortunately the nearest neighbour sampling of internal overviews of Rasterlite tables yields pretty poor quality and no other sampling methods are supported. While trying external overviews I found two troubles. First one is that it isimpossible to build external overviews if there has been internal overviews in the table. Removing them with "gdaladdo -clean" does not help, the message is still: ERROR 6: Cannot add external overviews to a dataset with internal overviews Overview building failed. Another problem is not big. Gdaladdo just gives a faulty error message first but it still creates external overviews. This is what gets printed on the screen:
gdaladdo -ro RASTERLITE:addotest3.sqlite,table=t8000 2 4 8 ERROR 4: `addotest3.sqlite_t8000' does not exist in the file system, and is not recognised as a supported dataset name. 0...10...20...30...40...50...60...70...80...90...100 - done. It would be really good to have at least average method also for internal overviews. -Jukka Rahkonen- _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
