id summary reporter owner description type status priority milestone component version resolution keywords cc cpu platform 2669 v.net.iso: different results depending on direction mlennert grass-dev@… "Testing v.net.* modules to see whether the number of vertices in lines makes a difference for results (for info: it doesn't), I came upon a weird bug. I digitized three +/- parallel lines (with different number of vertices) and start points at more or less similar positions on these lines. Then: {{{ v.net test_lines points=test_points op=connect thresh=500 out=network v.db.update network col=cost qcol=""length/(speed*1000/60)"" v.net.iso input=network@isochrones output=isos center_cats=1-3 costs=5,10,15,20,25,30,35,40 arc_column=cost }}} So cost is the same in both directions. However, the result I get is very different depending on the direction from the starting point (cf attached image - numbers are the categories from v.net.iso, blue circles are the start points)." defect closed normal 7.0.4 Vector svn-trunk invalid network v.net.iso direction cost Unspecified Unspecified