[GRASS-user] limit Voronoi or other vector programs

Maris Nartiss maris.gis at gmail.com
Wed Oct 1 14:03:13 EDT 2008


Hello,
currently there is no MASK support for vector data. Only solution is
to extract a subset of whole dataset into new vector map/layer with
existing GRASS tools (i.e. v.extract and others).

Also MASK concept for vector data is easy to implement for vector
points but it gets tricky with lines/areas. What should happen to
line/area that crosses MASK border?
Also as MASK normally is applied "on fly", it could be real show
stopper when working with large datasets (i.e. LiDAR data).

WBR,
Maris.

2008/10/1 William L. Baker <bakerwl at uwyo.edu>:
> Hello,
> It would be useful to be able to use something similar to r.mask to be able
> to limit the area that v.voronoi (or other programs) use. Is there a way to
> mask out particular areas?
>
> Bill B.
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