Dylan Beaudette wrote: > After some frustration with the GRASS-R functionality as implemented > via temp shapefiles, I realized that the source of the problem was > features missing cat values.
I've just added a note about this to vectorintro.html as it is an unobvious feature of GRASS vector processing. > I poked around with v.edit, but did not see any simple way to ID or > remove features missing a cat value. The '-c' option in v.out.ogr was > a temporary fix, but I would like to be able to identify / remove > cat-less features without using v.out.ogr . > > Any tips on how to do this / or where work would need to be done? to add category numbers use v.category or v.centroids. you might give all newly categorized features a cat number of 99999 (cat=99999 step=0) then extract those to another map with v.extract and compare. ? Hamish _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
