[geos-devel] [GEOS] #531: UnaryUnion of an line collapsed to a point returns EMPTY

[GEOS]

#531: UnaryUnion of an line collapsed to a point returns EMPTY
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 Reporter:  strk        |       Owner:  geos-devel@…
     Type:  defect      |      Status:  closed
 Priority:  major       |   Milestone:  3.8.0
Component:  Default     |     Version:  3.3.3
 Severity:  Unassigned  |  Resolution:  wontfix
 Keywords:              |
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Changes (by pramsey):

 * status:  new => closed
 * resolution:   => wontfix


Comment:

 JTS does this too. Philosophically you can swing either way. Taken in
 isolation, returning a point makes perfect sense. But if I union a
 collection of linestrings, I probably want the not-a-line entries to just
 disappear (think, zero-length lines at the nodes of other real lines). I'm
 going to 'wontfix' this as it is long-standing behaviour and not obviously
 wrong, nor different from our reference base (JTS).

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Ticket URL: <https://trac.osgeo.org/geos/ticket/531#comment:6>
GEOS <http://trac.osgeo.org/geos>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).