Hi, One more suggestion, have you tried the -fl option "Name one or more “fixed levels” to extract"? Requires some writing but only once if you save the list into an optfile https://gdal.org/programs/raster_common_options.html. I haven't tried the option with hundreds of fixed levels, though.
-Jukka- Jukka, Thanks! After trying shapefile and exceeding 2GB, I switched to postgres and deleted the elevation as you suggested. I'm working with a global relief model the includes both elevation and bathymetry depth over the whole world at about 15 arc-sec/pixel. I generates a lot of contour lines between 8,000 and -10,000 meters, I was think it would be handy to gdal_dem had a few more options to control the range and direction of contour generation. I also have played with gdal_calc to create an elevation and bathymetry only files. Thanks, I think I have workarounds for the moment. -Steve W -- Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev