Hi Daniel, On Fri, Nov 10, 2017 at 11:03 AM, Daniel Victoria <[email protected]> wrote: > Hi list, > > I want to calculate a cost of getting from any cell in my raster to some > ports, considering roads network, and I though r.cost could solve this. > > What I have is: > 1) Cost raster map with cost per cell (10 for normal cells, 1 if it's a > road) > 2) vector map containing several ports > 3) start_raster has the same extent of the cost raster, but all cells == 1 > > This is the command I'm using > r.cost input=cost_map output=cum_cost stop_points=ports > start_raster=my_region > > However, my results is a map will all values equal zero. Is it because the > stop_points in ports lay inside my start_raster? Thus r.cost reaches the > stop point right from the start? > > My final result should be a map of distance to ports considering the roads > network.
I think it should be r.cost input=cost_map output=cum_cost start_points=ports your ports are the starting points. Anna > > Cheers > Daniel > > _______________________________________________ > grass-user mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/grass-user _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
