On 25/01/14 12:52, Markus Metz wrote:
On Sat, Jan 25, 2014 at 12:27 PM, Markus Neteler <[email protected]> wrote:
On Sat, Jan 25, 2014 at 12:08 PM, Markus Metz
<[email protected]> wrote:
On Sat, Jan 25, 2014 at 12:10 AM, Milton Ribeiro
<[email protected]> wrote:
Dear all,
I have a polygon vector, and need to add point in the center of mass of each
one.
I used v.centroid, but it adds just a centroid, but not in the central
position of the polygon area.
v.centerpoint from addons [0] does that.
Markus M
[0] http://grasswiki.osgeo.org/wiki/AddOns/GRASS7/vector#v.centerpoint
Right, I forgot about this nice addon!
Perhaps its functionality might be merged into v.centroids [1]?
No, because the center of mass is not always within the area.
But couldn't that be a documented flag (e.g. something like this:
'always place centroid within the area (for GRASS polygon)').
Personally, I support MarkusN's idea of merging the two, if that's
possible from the code point of view. I find it more intuitive to look
for a module creating centroids...
Moritz
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