[GRASS-user] v.to.rast: advice needed

[Maris Nartiss]

I think you need to interpolate and not simply convert vector lines to
raster lines. Make sure lines have an attribute with elevation (or z
coordinate) and use e.g. v.surf.rst module.

Māris.

trešd., 2023. g. 10. maijs, plkst. 17:29 — lietotājs Rich Shepard
(<rshepard at appl-ecosys.com>) rakstīja:
>
> I need to convert a vector contour map to a raster so I can apply the
> hydrologic models modules.
>
> Reading the v.to.rast manual page I learned that I needed to add categories
> to the input contour map. Running v.category added no categories: "0
> features added."
>
> v.info does not tell me anything about the elevation values of the contour
> lines. Looking at the v.* modules, and trying v.univar, didn't help. I could
> try v.to.3d, but I need information about the vector map's contents.
>
> Which v.db* should I use to find the elevation colum associated with each
> contour line?
>
> TIA,
>
> Rich
>
>
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/grass-user