Thanks. This does seem more in line with what I want to do. What is the difference between operation=connect and operation=nodes?
Moritz Lennert-2 wrote: > > On 29/09/08 01:44, Ryan R. Rosario wrote: >> I have one vector map consisting of 30831 points, and another consisting >> of a >> road network. I have used the v.distance function followed by v.clean to >> connect each point to the nearest road. I used the errors from v.clean to >> obtain the intersections: basically, each point's projection onto a road. >> >> #v.distance -p from=incidents to=roads out=connect upload=dist >> column=dist >> #v.patch roads,connect,points out=patched >> #v.clean patched output=patched_clean err=intersections tool=break,snap >> >> The problem is, the error layer (intersections) only contains 6715 points >> but for my next step I need to have the same number of intersections as >> data >> points. >> >> (In the next step, I want to take this layer of intersections (points) >> and >> locate the nearest point in another layer along a road, so I need to have >> the same number of intersections as I have data points) >> >> What am I misunderstanding about the v.clean process? Is there some way I >> can fix this? > > Don't have an answer to your question concerning v.clean, but you could > also use v.net with operation=connect. > > Moritz > > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > > -- View this message in context: http://www.nabble.com/Snapping-Points-to-Nodes-along-Lines-tp19716703p19735421.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
