[PostGIS] #5782: TopoGeo_addLinestring corrups topology: adjacent edges 33 and -32 bind different face (1 and 0)
PostGIS
trac at osgeo.org
Wed Sep 25 11:24:47 PDT 2024
#5782: TopoGeo_addLinestring corrups topology: adjacent edges 33 and -32 bind
different face (1 and 0)
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Reporter: Lars Aksel Opsahl | Owner: strk
Type: defect | Status: new
Priority: high | Milestone: PostGIS 3.4.4
Component: topology | Version:
Resolution: | Keywords:
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Comment (by mdavis):
It seems problematic to rely on distance calculation to determine
topology, since it's inherently less precise than the actual geometric
situation.
Perhaps the fundamental problem is treating nearly-identical linestrings
as distinct edges. Would it be possible to specify a distance tolerance,
and raise an error if lines contain distinct sections which are closer
than the tolerance?
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5782#comment:20>
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