Luigi Ponti wrote on 08/23/2007 05:07 PM: > Dear list, > > Is there a way to "extrude" 2D vector points to 3D points based on > attribute column values, similar to what I have read v.extrude can do > with lines? I have tried to use v.extrude with points but an empty 3D > vector was created. ciao Luigi:
1. use 'v.db.addcol' to add also an x and y column 2. then upload also x and y to attribute table with 'v.to.db' (so you have x,y,z there as *attribute*) 3. run 'v.in.db' to re-generate the point map as 3D map, indicating x=xcol y=ycol z=zcol 4. with 'v.db.dropcol' you could now remove the xcol, ycol, zcol columns from the new 3D map attribute table as no longer needed Cheers markus PS: it would be great to have such functionality in v.transform: a new parameter "column" which reads z from the attribute table. ------------------ ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler ITC -> since 1 March 2007 Fondazione Bruno Kessler ------------------ _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
