[GRASSLIST:7548] Re: vectorisation - vertex limit?
Markus Neteler
neteler at itc.it
Thu Jul 14 10:22:23 EDT 2005
Hi Martin,
> The Problem is the vectorisation with r.to.vect: The resulting vector (lines) I
> get is not "finished" when displaying it (bottom part is missing). Further
> analysis are not possible with this vector - always getting the error:
> ERROR: Cannot open old vector mwin_vector1 at schlesi on level 2.
No, there is no such limit in the vector model. I just tried
to split the Spearfish roads map into 1m segments:
GRASS 6.1.cvs (spearfish60): > v.split in=roads out=roads_split length=1
100%
Erzeuge Topologie ...
392579 primitives registriert
Building areas: 100%
0 Flächen erstellt
0 Inselflächen erstellt
Füge Inselflächen hinzu:
Füge Zentroide hinzu: 100%
Die Topologie wurde erstellt.
Anzahl von Knoten : 392430
Anzahl von Primitives : 392579
Anzahl von Punkten : 0
Anzahl von Linien : 392579
Anzahl von Boundaries : 0
Anzahl von Zentroiden : 0
Anzahl von Flächen : 0
Anzahl von Inseln : 0
No problem (not even slow :-).
Probably your disk is full and GRASS doesn't report this properly?
Please post the full ourput of r.to.vect to better understand
the problem.
Markus
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