[GRASS-user] Intersections on World Map

[Martin Bley]

Hi Ivan,
thanks for your answer

On Fri, Nov 02, 2007 at 12:51:50PM +0100, ivan marchesini wrote:
> hmmm 
> really strange...
> did you verify the topology of the world map?
> 
> v.build map=$map
GRASS 6.0.2 (World):~ > v.build map=World
Building topology ...
4010 primitives registered      
Building areas:  100%
1983 areas built      
1953 isles built
Attaching islands:  100%
Attaching centroids:  100%
Topology was built.
Number of nodes     :   3980
Number of primitives:   4010
Number of points    :   0
Number of lines     :   0
Number of boundaries:   2042
Number of centroids :   1968
Number of areas     :   1983
Number of isles     :   1953
Number of areas without centroid :   15
GRASS 6.0.2 (World):~ >

don't know what to do with this information. What about the 15 "areas
without centroid"? 

I just started a new v.overlay operation after building ithe topology 
using v.build - same effect. 

Thanks,
Martin



-- 
Martin Bley