[GRASS-user] v.to.rast questions

[Anna Petrášová]

On Wed, May 10, 2023 at 12:34 PM Rich Shepard <rshepard at appl-ecosys.com>
wrote:

> On Wed, 10 May 2023, Anna Petrášová wrote:
>
> > Sounds like the vector geometry was already 3D, that's the case when you
> > use use=z. If the vector would be 2D (see v.info) you would have to use
> the
> > attribute table.
>
> Anna,
>
> When I used the 2D file, regardless of which parameter I used or both,
> v.to.rast told me the file was not 3D. That's why I converted it. When
> 'use=z' failed I tried 'attribute_column=ContourEle' with the same result.
>
> Now I have the rasterized contour map (image attached) and need to learn
> how
> to use it to create flowlines, flow accumulations, and more. It does not
> have the 1'x1' cells each with a color representing the elevation.
>
> Is there an r.* module to interpolate elevations between the contour lines
> so I have cells?
>

There is r.surf.contour, so that sounds like the tool you need.

>
> This is all new to me so I appreciate all the help I get.
>
> Regards,
>
> Rich_______________________________________________
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