Hi, I have a huge set of tiffs rasters. Any single tiff is a geotiff tiled (256x256) and as an internal overview.
To can use this raster dataset to lower scales (full extension) I need to create a single simplified tiff raster of all this dataset. Now I need to create a single simplified tiff raster . I don't know how is the better way to produce this simplified raster. This because the original huge set of rasters are about 2 TB. Every raster is about 15000 x 15000 px. SO I start creating a catalog named "cat_fogli.vrt" using gdalbuildvrt. And after this was create, I tryed to produce an external overview of this catalog. using this command: gdaladdo -r average -ro --config BIGTIFF_OVERVIEW YES cat_fogli.vrt 256 512 1024 2048 4096 Unfortunately gdaladdo seem to be lock. It is take really many time and is always on 0%. I don't know if is only a bug time due to the huge size of original raster dataset or I'm using the wrong way. Thx, -- ----------------- Andrea Peri . . . . . . . . . qwerty àèìòù -----------------
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