[GRASS-user] Re: Limit d.raster with vector map

[Nick Jachowski]

I would do what Daniel said, but use the raster (use command v.to.rast) as a
mask (use command r.mask) to limit the displayed area to the vector map
area.

On Thu, Jun 30, 2011 at 9:40 PM, Daniel Lee <Lee at isi-solutions.org> wrote:

> I would do the following, assuming you've got an area vector that's
> covering
> the raster data you want to show:
>
> 1. Convert the vector to a raster with r.to.vect
> 2. Reclassify it so that it's got only two values: 1 and NoData.
> 3. Multiply the reclassified raster with the raster data that you want to
> limit to the area of the vector. The old values will be preserved in the
> resulting map because x * 1 = x, but everything that's not collocated with
> the vector map will be removed because it's multiplied with NoData.
>
> --
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> http://osgeo-org.1803224.n2.nabble.com/Limit-d-raster-with-vector-map-tp6533406p6533536.html
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