On Fri, Nov 2, 2018 at 11:58 AM Frank David <[email protected]> wrote: > > Le 31/10/2018 à 20:57, Markus Metz a écrit : > > Hi Frank, > > On Wed, Oct 31, 2018 at 1:39 PM Frank David <[email protected]> wrote: > > > > 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... > > this kind of operation could be much faster in latest GRASS 7.4 than in any previous versions. Which GRASS version are you using? > > Hello Markus, > > I'm using 7.4.1 on debian9 > > But my grass db folder is on a small server (Synology NAS), so may be the network makes slow down the operation ?
This is possible, but it should not slow it down that much: 10 min vs 1 hour Can you provide a link to the vector from which you want to extract a small area, and the command you used to extract a small area? Maybe there is scope for optimization. Markus M > > Cheers, > Frank > > > Markus M > > > > Cheers, > > > > Frank > > > > Le 31/10/2018 à 11:26, Veronica Andreo a écrit : > > > > Check v.extract or v.clip > > > > Cheers, > > Vero > > > > El mié., 31 oct. 2018 7:20, Frank David <[email protected]> escribió: > >> > >> Hello, > >> > >> 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 ! > >> > >> Frank > >> _______________________________________________ > >> grass-user mailing list > >> [email protected] > >> https://lists.osgeo.org/mailman/listinfo/grass-user > > > > _______________________________________________ > > grass-user mailing list > > [email protected] > > https://lists.osgeo.org/mailman/listinfo/grass-user
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