[GRASS-dev] [GRASS GIS] #3319: v.overlay: incorrect results with "not" operator

[GRASS GIS]

#3319: v.overlay: incorrect results with "not" operator
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 Reporter:  sbl          |      Owner:  grass-dev@…
     Type:  defect       |     Status:  new
 Priority:  major        |  Milestone:  7.2.1
Component:  Vector       |    Version:  svn-releasebranch72
 Keywords:  v.overlay    |        CPU:  Unspecified
 Platform:  Unspecified  |
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 In a project I want to clip away the sections from a river network that
 are within lakes.

 Unfortunately, some streams vanished from the result completely (which
 should not)...

 Data is here (sorry it is 5-11 MB):
 http://vm-srv-finstad.vm.ntnu.no/vpack/

 The failing command I tried was:
 v.overlay --overwrite --verbose ainput=Streams_WR14695_merge
 binput=Lakes_WR14695_erings operator=not output=Streams_WR14695_test

 Tested on three different boxes, with GRASS 7.2.1svn, 7.0.6svn and trunk.

 Lines that disappear are e.g.:
 cat
 8725
 15481

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3319>
GRASS GIS <https://grass.osgeo.org>