Stuart Gralton wrote: > > This is the original vector: > > v.db.connect -p cont > Vector map <c...@permanent> is connected by: > layer <1> table <cont> in database > </home/stuart/grassdata/aawt_mga55/PERMANENT/dbf/> through driver <dbf> with > key <cat> > > > The v.split command and output: > > v.split input=cont output=contSplit length=10000 > > > Proof that there is no attribute table: > > v.db.connect -g contSplit > ERROR: Database connection for map <contsp...@permanent> is not defined in > DB file > > > I hope that this is this what you were after. > That's what I was after.
Umh, I forgot that I fixed that 4 months ago, please use a newer version, preferably the latest weekly snapshot. Markus M > > Markus Metz wrote: >> >> Stuart Gralton wrote: >> > Hello Everyone, >> > >> > I am trying to use v.overlay to clip contour lines for a specific area. >> > The >> > contour lines were imported into GRASS from a shapefile which is about >> > 33Mb. >> > The query was as follows: >> > >> > v.overlay ainput=contour atype=line binput=boundingbox >> > output=contour_clip >> > operator=and >> > >> > The operation took 16 hours to complete, which seems excessive. Is there >> > anything that I can do to speed things up? >> > >> > I am aware of v.split, v.select, v.clean as suggestions from other posts >> > as >> > ways of increasing performance. Unfortunately none of these helped me >> > very >> > much: >> > >> > v.split seems to drop the attribute table (but it has amazing >> > effects on >> > performance). >> >> v.spllt does copy all attribute tables. Can you post the output of >> v.db.connect -p or v.db.connect -g for the original vector and the >> output of v.split? >> >> Markus M >> >> > v.select helps a little, but due to the nature of the data, not many >> > features are removed. >> > v.clean did not have any effect. The data is from the government, >> > and is >> > already of high quality. >> > >> > >> > Is there anything that I am missing? Or is there any way to preserve the >> > attribute table when using v.split? >> > >> > Thanks in advance, >> > Stuart >> > >> > >> > _______________________________________________ >> > grass-user mailing list >> > [email protected] >> > http://lists.osgeo.org/mailman/listinfo/grass-user >> > >> > > > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
