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On 27/09/2011 13:31, giannis Nj wrote:
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Hi,<br>
<br>
is it possible to crop a shapefile at some coordinates inside
grass? I have a bigger area than what i want and i must limit
the boundaries of this in some coordinates. If it isn't
possible, any other program (open source of course) to do this
job and then import the limited file in grass? <br>
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<br>
</blockquote>
<br>
In GRASS it can be done with 2 steps: <br>
First set the current region to the boundaries of the smaller region
with g.region:<br>
g.region -p e-<east bound> w=<west bound>
n=<north> s=<south><br>
Now create a polygon of the region extents:<br>
v.in.region out=small_region<br>
and finally with v.overlay you can clip the original to the smaller
region:<br>
v.overlay ain=<original shape> bin=small_region
out=clipped_shape<br>
<br>
There are tools in the QGIS Vector (fTools) plugin to do the same...<br>
<br>
<blockquote cite="mid:DUB106-W3BEBA9E8DFF4050EC0ED6AFF00@phx.gbl"
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</blockquote>
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