Hi, I am trying to intersect a line with a polygon however it is extremely slow in QGIS (note i need intersect to save attributes rather than CLIP) taking 15mins compared to 30seconds in ArcGIS9.3 so I was wondering if anyone had any recommendations or experienced similar slowdowns? I may need to add a spatial index? - although how do i do this within a sequence of processes defined in either a model or a script?
I've heard that GRASS Overlay may be quicker but unfortunately sextante(processing) does not accept "atype" to be a line although I think it should be possible if i read the docs correctly at http://grass.osgeo.org/grass64/manuals/v.overlay.html? Cheers, Bjorn -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Intersect-Performance-tp5077130.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
