Markus M,

I know this is still very fresh, but I was excited about seeing your addition to v.voronoi allowing to calculate skeletons and longest lines for areas. Amongst others, this could be useful for calculating some shape parameters of polygons for region-based classification.

So, just a quick feedback. I ran the module on the entire urbanarea map, in order to test scalability. The results are really nice and I haven't found evident errors, yet. It takes quite a while, though:

time v.voronoi -s --overwrite input=urbanarea@PERMANENT output=area_length

real    67m21.294s
user    66m37.228s
sys     0m30.684s


time v.voronoi -s --overwrite input=urbanarea@PERMANENT output=area_length_thin2000 thin=2000

real    56m56.732s
user    56m15.180s
sys     0m17.268s

Next, I'll try it on the results of an i.segment run.

Moritz

_______________________________________________
grass-dev mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-dev

Reply via email to