Otto Dassau-3 wrote > Hi, > > v.net.allpairs could be a starting pioint: > https://grass.osgeo.org/grass70/manuals/v.net.allpairs.html > > Regards, > Otto > > Am Sat, 12 Dec 2015 14:31:48 -0800 (PST) > schrieb Helmut Kudrnovsky <
> hellik@ > >: > >> Hi, >> >> given following data : >> >> - data 1 point vector , e.g. sample points along a river >> - data 2 point vector, e.g. point pollution Inputs in a river >> - data 3 line vector, e. g. rivers or streams >> >> Any ideas how to calculate the distance between the points of data 1 and >> data 2 along the vector lines in data 2? >> >> >> >> ----- >> best regards >> Helmut thanks. after some testing: v.net.distance [1] does the job quite nicely. - step 1: v.net operation=connect input=line points=samplepoints output=line_samplepoints node_layer=3 - step 2: v.net operation=connect input=line_samplepoints points=pollution_points output=line_samplepoints_pollutionpoints node_layer=4 - step3: v.net.distance input=line_samplepoints_pollutionpoints output=calculated_distance from_layer=3 to_layer=4 [1] https://grass.osgeo.org/grass71/manuals/v.net.distance.html ----- best regards Helmut -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Calculating-distance-between-2-point-vectors-along-a-line-vector-tp5241048p5241104.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
