[GRASS-user] Extracting non-overlapping lines
needels at translucida.com
Fri Jul 24 12:15:19 EDT 2009
Does anybody have a suggestion for subtracting the elements in one
line vector from another line vector?
On Jul 21, 2009, at 7:06 PM, Dwight Needels wrote:
> Hi all,
> I have two nearly identical line vectors, and I would like to
> extract the lines that differ between the two vectors into a third
> vector. Specifically, I want to isolate the connecting lines that
> were generated by v.net operation=connect. Something like:
> [map_C = map_A NOT map_B] for line features.
> I thought I would be able to use v.overlay with operator=not, but it
> it appears to require that btype=area. It also appears that v.select
> allows only operator=overlap.
> Can someone point me in the right direction?
> I am using William Kyngesburye's 6.4.0RC3 on MacOS 10.5.7.
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