> On 11/05/2010 09:59 PM, Bryan Keith wrote: >>> On 10/19/2010 11:17 PM, Bryan Keith wrote: >>> >>>> Hello, >>>> >>>> I have a vector line file that has lots of two-vertex lines. Many of >>>> these two-vertex lines share endpoints and really just make parts of >>>> one >>>> longer line. I'd like to dissolve these lines into one line when they >>>> have the same end point. It looks like v.dissolve only works for >>>> areas. >>>> Is there somewhere else I should be looking? Thank you. >>>> >>>> >>>> >>> Did you have a look at v.build.polylines ? >>> Additional note: line vectors have a direction. Two line segments with >>> an equivalent node (end point) will *not* connect if they are in >>> opposite directions. In this case you can try the v.edit tool=flip >>> option (on those segments only) >>> >> Thank you for the response. I finally got around to looking at this >> today. I made a simple example and tested with v.build.polylines, and >> it >> works great. Thank you. >> >> However, it turns out that I have many duplicate lines in my dataset. I >> created a simple example where there are duplicate lines, and >> v.build.polylines doesn't work in that case. What do I need to look at >> to >> get rid of duplicate lines? >> >> > > v.clean tool=rmdupl > Might do it if the lines exactly overlap.
Yes, that worked in my case. Thanks so much, Micha! Bryan _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user