[Qgis-user] SEXTANTE - GRASS MASK

[Pekka Hurskainen]

Dear list,

I am also struggling with the same problem. Any solutions?

BR,

Pekka

On Fri, Jul 20, 2012 at 11:49 AM, Pedro Venâncio
<pedrongvenancio at yahoo.com> wrote:
> Hi,
>
> One thing that I still can not understand on Sextant is how to get the Sextant working with the definition of GRASS Region and MASK. GRASS has a structure very rigid and defined in this respect, and now in Sextante I can not find a way of, for example, transform a vector layer into a raster, using another raster acting as Region and MASK, limiting all the processing to the limits and resolution of this raster.
>
> Right now I can not find a solution to achieve this. One way to accomplish this could be by selecting a raster as a reference, which serve as Region and MASK simultaneously, in order to limit all the operations to this area. This is because most of the times the area of interest has a format different from rectangular which is now possible to define by the coordinates of the extremes (BBOX).
>
> Could this be a solution?
>
> Thanks!
>
> Best regards,
> Pedro Venâncio
>
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