[GRASS-user] Clipping Very Large Vector Map

Carlos Grohmann carlos.grohmann at gmail.com
Mon Oct 8 16:31:36 PDT 2012

maybe gdalwarp can do it? it has a clipping option where you give
coordinates of a rectangle.



On Mon, Oct 8, 2012 at 8:28 PM, Rich Shepard <rshepard at appl-ecosys.com>wrote:

>   I have a map of streams and rivers that is about 474M for the coor file
> and 65M for the topo file; very large. The area of interest is very much
> smaller and I tried using v.overlay with the 'and' (intersect) operator to
> clip the huge line map with the small area map. After about 1/2-hour of
> processing the system shut down because the CPU overheated (at it's only
> 20C
> here today).
>   Are there other modules, or ways of using v.overlay, that will allow me
> to
> trim off smaller chunks of the line file?
> TIA,
> Rich
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Prof. Carlos Henrique Grohmann
Institute of Geosciences - Univ. of São Paulo, Brazil
- Digital Terrain Analysis | GIS | Remote Sensing -

Can’t stop the signal.
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