Le lundi 14 novembre 2011 18:17:38, Ethan Alpert a écrit : > Curious if the Shapefile driver uses .qix files if they're available > when performing SetSpatialFitler.
Ethan, Quoting http://gdal.org/ogr/drv_shapefile.html : """ The spatial indexing uses the same .qix quadtree spatial index files that are used by UMN MapServer. [...]. Spatial indexing can accelerate spatially filtered passes through large datasets to pick out a small area quite dramatically. """ Best regards, Even _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
