Hi Luis, Not sure I understand, but What if you draw a large polygon that covers both rivers, then you clip against the rivers and calculate the area of the resulting polygon. Does that help?
Kind regards, Inviato da iPhone > Il giorno 20 dic 2019, alle ore 16:40, Luis Moreira <lfsmmore...@gmail.com> > ha scritto: > > Hello everyone, > > I'd like to obtain the area between two drainage networks. The difference > between them is due to different calculation methods. > > <http://osgeo-org.1560.x6.nabble.com/file/t385794/photo5181593200849168458.jpg> > > The image above illustrates the methodology of mesuring the "error" between > two drainage networks. > > Each one of the drainage networks is in a shapefile, and I need the sum of > all the areas between the segments of the drainage networks, so that I can > mesure the difference between them. > > How could I do that with GRASS? > > Thanks in advance. > > > > > > -- > Sent from: http://osgeo-org.1560.x6.nabble.com/Grass-Users-f3884509.html > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/grass-user _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user
