Dear Leandro, Two steps I do: 1. Create a vrt of all the DEM files (gdalbuildvrt). 2. Extract contour from the VRT file (gdal_contour).
Both tools are available in the Raster menu. You can also script this and run the process for each DEM file but you will have separate contour layers that stops at the edge of your DEM tile. I want to avoid this which I why I use the VRT file. A CLI version of this process I posted here: http://epsg4253.wordpress.com/2013/02/08/building-contour-elevation-lines-with-gdal-and-postgis/ On Wed, Mar 12, 2014 at 10:13 PM, Leandro Girardin <[email protected]> wrote: > Hello. I need to perform a contorur extract of 41 raster hgt files, all with > the same configuration. Is there any way of doing this automatically? Thank > you in advance. Leandro. > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user -- cheers, maning ------------------------------------------------------ "Freedom is still the most radical idea of all" -N.Branden wiki: http://esambale.wikispaces.com/ blog: http://epsg4253.wordpress.com/ ------------------------------------------------------ _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
