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

TimNorwey timmy_weyrer at live.at
Wed Mar 23 14:35:32 EDT 2011

> Your point cloud was imported in 3d vector mode but not yet connected to
> an attribute table. Do this this way :
> v.db.addtable map=lidar columns='cat integer,x double precision,y double
> precision, z double precision'

--> worked fine

> To that point a table is connected to your vector and necessary fields
> were added to the table. So you can upload x,y,z values to the table :
> v.to.db map=lidar type=point option=coor columns=x,y,z

--> Unfortunately, this executed with an error. Only in the first row of the
attribute table the coordinates are added. 
It is said that there are 43 categories that have "more elements" and so the
coordinates are not loaded (see below)


Thank you very much for your assistance!


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