On 07/08/10 08:33, Nikos Alexandris wrote:
"v.distance" is slow (for the impatient user) with very large vectors (from my memory I estimate that it took ~20h for ~600.000 features). Trying to get the "dmax=" first in order to tell "v.distance" to look for features within a certain radius, might _not_ be very efficient as well. It takes time to get results from "v.distance -pa" and, depending on the vector(s), the addition of the _real_ v.distance can be a deal-breaker.
Just an innocent question (partly directed to Markus M): could this be linked to the spatial index ? And is v.distance faster with spatial index on file in grass7 ?
Which version are you using ? Moritz _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
