[EMAIL PROTECTED] pisze:
Hello,
I have a set of points and would like to compute the concave hull of it.
Is it possible within grass and has anybody done it before.
(Not tested idea:)
Connect all points with v.distance. Get rid of doubled lines with
v.clean tool=rmdupl. Turn lines into boundaries with v.type - this
creates areas without centroids. Add a centroid to each area. Make sure
each centroid has the same category (use v.category if needed). Dissolve
areas (v.dissolve) - you should get a single area with nodes only at the
most outer points you had in your input dataset.
Let me know if this works.
Maciek
--
Maciej Sieczka
www.sieczka.org
_______________________________________________
grass-user mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-user
