Markus Neteler wrote: > Hi, > > I came across this question: > > http://gis.stackexchange.com/questions/71734/how-to-calculate-mean-coordinates-from-big-point-datasets
Please try the new addon v.centerpoint [0]. It calculates various center points for point clouds, lines, and areas. Standard options are the geometric mean (center of gravity) and geometric median (more robust for outliers). There are additional options to calculate center points for points, lines and areas, explained in the manual. The geometric medians (points of minimum distance to all other points) are approximations, but fairly accurate and very fast. I would be surprised if any other GIS software can calculate these center points. Markus M [0] http://grasswiki.osgeo.org/wiki/AddOns/GRASS7/vector#v.centerpoint _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
