Le vendredi 20 juillet 2012 20:58:08, Sven Geggus a écrit : > Even Rouault <even.roua...@mines-paris.org> wrote: > > Testing with larger areas, like whole France or Europe, shows sluggish > > performance when ways are built from nodes, but that's perhaps expected. > > I didn't compare with other tools to know if the indexing or request > > strategy is particularly bad. > > Hm, would it be possible with this to e.g. convert all the forests > from a complete planetfile to a polygon shapefile while discarding > all the rest?
Yes, this should be possible by specifying the appropriate -where clause to ogr2ogr. However this will have roughly the same performance as completely converting the whole planetfile, so it will take some time... Hum, actually while writing this, I see that the attribute filter is evaluated after having reconstructed the geometry. So there's perhaps something I can do to speed that up a bit, in order to evaluate the attribute filter before and skip the geometry building if the attribute filter rejects the filter. > > Sven _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
