[GRASS-user] snap point to line/break line at given points

Moritz Lennert mlennert at club.worldonline.be
Fri Apr 22 07:22:23 EDT 2011


On 22/04/11 11:34, Johannes Radinger wrote:
> About my situation: I've got a river network, which
> is a polylinefeature set with 43 lines (43 IDs) included (tree-like shape of a rivernet)
> all with the same cat-value (1).
>
> Now I would like to unite/merge the lines to one feature (1 ID) if that is possible
> and break that single element at given points with v.edit...Because if I break
> now at around 40 positions I get over 80 segements (40 old segements and which
> are broken again at different positions) but there should  be only
> 41 or so...
>
> so how can I handle that and assign unique cat values for each segment...(at the
> moment the don't have to be the same like the breakpoints, just unique values)
>
> any suggestions?

v.edit tool=catadd id= ?

Moritz


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