[GRASSLIST:7531] vectorisation - vertex limit?

[Martin Rutzinger]

Hi all!

I try to vectorize a thinned (r.thin) raster map with r.to.vect. After that I
build the topology and create polygons with v.build. This works fine for small
regions, but if I choose a larger one the vectorisation is not finished
properly. It seems like r.to.vect starts at the top of the region and finishes
if a certain value of vetices was made. I can visualise the result, but I can't
built the topology with this vector (ERROR: Cannot open old vector
mwin_vector1 at schlesi on level 2).

I zoomed into the extent of the unfinished vector and tryed again:

Building topology ...
42238 primitives registered
Building areas:  100%
0 areas built
0 isles built
Attaching islands:
Attaching centroids:  100%
Topology was built.
Number of nodes     :   37573
Number of primitives:   42238
Number of points    :   0
Number of lines     :   42238
Number of boundaries:   0
Number of centroids :   0
Number of areas     :   0
Number of isles     :   0

Is there a limit of primitives around 42238 in the vector format?
Is it possible to handle larger vectors?

thank you
Martin

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