[Gdal-dev] gdaladdo for large RPF
even.rouault at mines-paris.org
Thu Jul 30 13:14:47 EDT 2009
sorry for the late answer.
Given the dimension of the RPF dataset, 366028x 466944, the overview file
should be around 57 GB ( the total size of the overviews of factor 1/2, 1/4,
1/8, 1/2^n .... is the size of the full resolution dataset divided by 3),
which cannot fit into a traditionnal TIFF file because of the 4 GB
Support for creating external BigTIFF overview files has been added in trunk
(GDAL 1.7.0dev). If you use a recent fwtools or osgeo4w package, you should
benefit from it. But be prepared to wait for several hours / days !
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