[GRASS-dev] vector dissolve problems

Hamish hamish_nospam at yahoo.com
Sun Nov 12 03:38:26 EST 2006


Michael Barton wrote:
> Let me know if you get any good tips. We have a similar  problem. One
> of my students is trying to turn a series of soil maps in DXF format
> into soil areas. The boundaries cut across soil areas. We've tried
> v.clean with snap to no avail so far. She needs to close a LOT of
> polygons in order to turn them to areas.


maybe this works as a work around to get rid of the lines:

v.mkgrid
v.overlay ain=polygons bin=grid op=not
v.clean


or before patching,

v.in.ogr
g.region vect=
v.in.region
v.overlay ain=polygons bin=vect_box op=not


Hamish




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