Hello, can You, please, send in a graphical example or put for download sample data set?
Maris. 2010/11/15, Patrick_schirmer <[email protected]>: > Thanks Markus and Hamish, > > Unfortunately v.clean rmdangle will not work for me. With Threshhold<0 > it deletes more or less all lines, otherwise none. I guess it is because > the "nests" of lines consist of 4-20 lines and are all seperated from > each other. > Per defintion a line "is considered to be a dangle if no other line of > given /type/ is on at least one end node" (documentation v.clean > rmdangle). As I am searching for lines that have exactly one line as sum > of all connecting node, this tool doesn't help. > > I will try to solve the problem by creating points out of the line > (nodes), buffering the points and delete the ones intersecting only one > line. But I still hope that there is a more direct solution to delete > the line as a geometry. > > So if there are any other suggestions I would be happy about. > I'll keep you up to date in case I find a solution. > > Cheers, Patrick > > > > On 11/12/2010 09:51 PM, Hamish wrote: >> Patrick_schirmer wrote: >> >>> I have a lot of lines that are linked to another >>> forming various nets. Several of those lines are >>> deadends. Now I search for a option to delete >>> "dead-ends" within those networks. It would be >>> perfect to delete the lines, or to search for the >>> nodes that link to more than one line. >>> I was searching in v.generalize, v.net, >>> v.to.point, v.to.db but won't find the proper >>> approach. >>> >> not a v.net specific thing, but in general for >> vector maps you can use v.clean to remove (or isolate) >> line "dangles" with the 'rmdangle' (or 'chdangle') >> tools. >> >> >> maybe that helps, >> Hamish >> >> >> >> >> >> > > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
