[GRASS-user] partial vector copy to smaller territory

Stefan Blumentrath Stefan.Blumentrath at nina.no
Wed Oct 31 05:53:52 PDT 2018

Hei Frank,

Did you try the “spatial” option in v.in.ogr (or the r-flag) (if your data is in a shape-file to start with):
https://grass.osgeo.org/grass74/manuals/v.in.ogr.html ?

And is v.clip slower than v.overlay (that could be used as well)?


From: grass-user <grass-user-bounces at lists.osgeo.org> On Behalf Of Frank David
Sent: onsdag 31. oktober 2018 13:14
To: Veronica Andreo <veroandreo at gmail.com>
Cc: grass-user <grass-user at lists.osgeo.org>
Subject: Re: [GRASS-user] partial vector copy to smaller territory

Hello Vero,

Thanks for your reply. It took almost one hour to extract my area (I guess because of topology). I do the same with Qgis from a shape in less than 10 minutes (but with several operations)... it's may be a bad idea to have a so heavy vector map in Grass...


Le 31/10/2018 à 11:26, Veronica Andreo a écrit :
Check v.extract or v.clip


El mié., 31 oct. 2018 7:20, Frank David <frank.david at geophom.fr<mailto:frank.david at geophom.fr>> escribió:

What is the best and fast way to make a copy of a part of vector map
(national) to get a smaller territory ? (partial copy).
Thank you for your advice !

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