Hi, If your raster are mutually exclusive (that is nodata value have data in the other raster) your could use gdal_merge found in processing. Nicolas
> Le 10 avr. 2019 à 07:01, Wouter Impens <[email protected]> a écrit : > > Hi Vivien, > > The tool ''r.patch'' should do the trick. More info on > https://grass.osgeo.org/grass76/manuals/r.patch.html > > Greetings > Wouter > > > Op wo 10 apr. 2019 om 11:55 schreef [email protected] > <[email protected]>: >> Hello everyone, >> >> I'm going to introduce myself quickly. I'm a french researcher in Geology >> and I use a lot Qgis for my work. I don't know if it's the good forum to ask >> for support on Qgis so tell me if another forum is more appropriate. >> >> I have a DEM with a dame lake in the middle. I need to have the topography >> under the lake level so I built another DEM with the topography under the >> lake level. This new DEM has the same projection than the first one but not >> the same resolution. >> >> I want to change the elevation values of the fist DEM using the values of >> the new DEM. I have already drawn a polygone of the area where I want change >> the values (the lake). >> >> How can I do this? Can I use a raster calculator? >> >> Thank you in advance for your answers. >> >> >> Vivien >> >> >> >> -- >> Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html >> _______________________________________________ >> Qgis-user mailing list >> [email protected] >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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