Hi Markus, Yes - that works but requires downstream hacks because of the different resolutions. Still, it is a workable solution I didn't think of. Thank you!
-k. On 2022-02-09 at 12:52 -08, Markus Neteler <[email protected]> wrote: > Hi Ken, > > On Tue, Feb 8, 2022 at 4:44 AM Ken Mankoff <[email protected]> wrote: >> >> Hello List, >> >> I'm interested in working with hexagonal rasters. I know I can make >> hexagon vectors with "v.mkgrid -h", but is there any way to then work >> with these in raster space? I'd like to use r.walk and r.cost to >> estimate costs to move around the hex grid. > > I am sure you considered v.to.rast? > > # North Carolina sample dataset > g.region raster=elevation res=5000 -pa > > # create vector hexagons > v.mkgrid map=hexagons -h > v.info -c hexagons > > # convert to raster model, requires the resolution to be increased > (example: 5000m -> 250m) > g.region res=250 -p > v.to.rast input=hexagons output=hexagons use=cat > > # viz > d.rast hexagons > d.vect hexagons type=boundary > > Now you may turn them into cost surfaces. > > Best, > Markus _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
