[GRASS-user] LIDAR Data

[Dr. Manuel Seeger]

Hello again,

yesterday it was the laser day:
we have obtained huge airborne laserscanner data, and want to try out 
the modules in GRASS.
after importing the xyz-data into vector-file we apply v.lidar.edgedetection
second step should be v.lidar growing. but it does not work

GRASS 6.3.cvs (Morbach):~ > v.lidar.growing 
input=morbach55156_edge at PERMANENT output=morbach55156_grow 
input_first=morbach55156 
database=/home/seeger/Documents/GRASSDATA/Morbach/PERMANENT/dbf/ 
driver=dbf tj=0.2 td=0.6
dbmi: Protocol error
ERROR: It was impossible open table

well, this is the error I get. I dont know how to handle with this.

Any suggestions?

Another question. How many points can be handled with grass and these 
modules (or grass vector files in general)?

Manuel

(thanks for the first help with terrestrial laserscanning data, I will 
go deeper into this!)


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_______________________________________________________________________
Dr. Manuel Seeger
Wiss. Assistent 			Scientific Assistant
Physische Geographie 			Dpt. of Physical Geography
FB VI - Geographie/Geowissenschaften 	Geography/Geosciences
Universität Trier			University of Trier
D - 54286 Trier
Tel.:	+49-651-201 4557
Fax:	+49-651-201 3976
Web:	http://www.uni-trier.de/uni/fb6/geographie/mitarbeiter/Seeger/