Second thought, perhaps I would just delete unnecessary contour lines afterwards instead of flattening the DEM.
gdal_contour -f gpkg -a elev -off -121.92 -i 1.524 bathy-value/crm_vol2.nc.tif bathy-contours/crm_vol2.nc-5.gpkg ogrinfo -sql "delete from crm_vol2.nc-5 where elev>0" bathy-contours/crm_vol2.nc-5.gpkg ogrinfo -sql "VACUUM" bathy-contours/crm_vol2.nc-5.gpkg -Jukka- jratike80 wrote > Hi, > > I believe I would use gdal_calc https://gdal.org/programs/gdal_calc.html > and > make the terrain above the sea level flat before creating the contours. > And > I would avoid shapefiles and use GeoPackage as output format. > > There is a button "Edit on GitHub" in the top-right corner on page > https://gdal.org/programs/gdal_contour.html, feel free to test it. > > -Jukka Rahkonen- -- Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html _______________________________________________ gdal-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/gdal-dev
