[GRASS-user] How to extract z-coordiante and write it into attribute table?

Vincent Bain bain at toraval.fr
Wed Mar 23 09:33:42 EDT 2011

If your map is a 3d vector, v.db.connect will do the job.
First create 3 new numeric fields in the table (x,y,z), run v.db.connect
with the coord option : it will feed these attributes. 
Then you can drop x,y columns if you don't need them anymore.


Le mercredi 23 mars 2011 à 06:29 -0700, TimNorwey a écrit :
> Hey,
> I have a point cloud and I would need the z-coordinate of each point as
> attribute. Is there a possibility to extract the z-coordinate and write the
> corresponding value into the attribute table of each point?
> Thanks, 
> Tim
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