Re: [GRASS-user] Extracting non-overlapping lines

2009-07-27 Thread Moritz Lennert
On 22/07/09 01:06, 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.

Re: [GRASS-user] Extracting non-overlapping lines

2009-07-25 Thread Markus Neteler
On Wed, Jul 22, 2009 at 1:06 AM, Dwight Needelsneed...@translucida.com 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

Re: [GRASS-user] Extracting non-overlapping lines

2009-07-24 Thread Dwight Needels
Hi all, Does anybody have a suggestion for subtracting the elements in one line vector from another line vector? -D 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

[GRASS-user] Extracting non-overlapping lines

2009-07-21 Thread Dwight Needels
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