[GRASS-user] topological error

GRASS GRASS user
1

Hi all,
I have a little topological error on a GRASS vector (that I linked to
the mail).
It is an example square vector with a topological error in the left top
angle.

I try to clean it with the various options of v.clean but without
results and v.digit doesn't show it with a different color when I edit
the vector.

How can remove this type of error?

Thank you very much!

Regards
Leonardo

(attachments)

errore.zip (1.55 KB)

2

Hi,

2008/1/17, Leonardo Lami <lami@faunalia.it>:

I have a little topological error on a GRASS vector (that I linked to
the mail).
It is an example square vector with a topological error in the left top
angle.

I try to clean it with the various options of v.clean but without
results and v.digit doesn't show it with a different color when I edit
the vector.

How can remove this type of error?

v.clean in=errore out=errore_clean tool=break,rmarea thresh=0,0.5 --o

first to break (split line on each intersection) lines/boundaries then
to remove small areas. Take care about threshold value used for
removing small areas.

Martin

--
Martin Landa <landa.martin@gmail.com> * http://gama.fsv.cvut.cz/~landa *