[GRASS-user] v.build.polylines strange behaviour

[Jarosław Jasiewicz]

Hi
When v.build.polylines is splied on file with islands ie: small areas 
inside lareger ones:


_________
|   ___     |
|   |   |     |
|   |__|     |
|________|

the boundary of island doubles.
It happens in spite of centeroits are added or not (if centeroids are 
added they also doubles)
If centeroids are not added duplicate lines can be removed width v.clean 
but if they are v.clean do not remove duplicate boundaries.

regards
Jarek