[GRASSLIST:4821] Re: v.out.ogr
Radim Blazek
blazek at itc.it
Sat Nov 13 07:58:45 EST 2004
Eliot Cline wrote:
> Hello all,
>
> I am using Grass57 to convert some raster maps to vector. I used the r.to.vect command to generate some polygons from one of the categories in a raster layer. I then wanted to export these polys to a shapefile to clean them up in another software package. For some reason v.out.ogr runs very slowly when exporting areas and after a while stops processing altogether. No such problems when exporting area boundaries, but I would really like to create a polygon shapefile. Has anyone seen this problem before? Any suggestions for an alternative way to get the data out of Grass and into a shapefile?
>
> Thanks in advance,
>
> Eliot Cline
Probably because areas were created as WKT and then converted to WKB,
I have changed that to create directly WKB and it reduced time
form 16s to 1s for my test data. Try CVS.
Radim
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