> On Aug 18, 2017, at 1:08 AM, Moritz Lennert <mlenn...@club.worldonline.be> > wrote: > > On 18/08/17 07:36, Jeshua Lacock wrote: >> Greetings, >> I have huge vector databases (~50 million records) that I need to export as >> many tens of thousands of tiles. >> Is it possible to use ogr2ogr’s spat argument when exporting with v.out.ogr, >> perhaps using its’ dsco or lco arguments? > > AFAIK, no. > > Seems like an interesting thing to have. Maybe you could make an enhancement > request for this in the bug tracker ?
Hi Moritz, OK, thanks for the suggestion. >> Otherwise, is there a faster (more efficient) way than creating a new vector >> with v.select? v.select seems several magnitudes slower than if I export to >> a huge sqlite database and the use ogr2ogr’s -spat argument, but I would >> prefer to keep it in GRASS. > > See https://trac.osgeo.org/grass/ticket/3361 for a report of the slow > v.select. This is mostly when using the GEOS operators, not when using the > native overlap operator. Is this what you are doing ? It would be good if you > could add your experience to the above enhancement request. My apologies, I had used v.overlay, not v.select. I just tried v.select and it was very fast. Still though, I think it would be very nice to be able to specify the extents when exporting with v.out.ogr so I will make an enhancement request. Best, Jeshua Lacock Founder/Engineer <3DTOPO.com> GlassPrinted.com _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user
