[geos-devel] [GEOS] #1064: Topology preserve simplify: unexpected behavior on similar polygons

GEOS geos-trac at osgeo.org
Sat Nov 28 13:49:17 PST 2020


#1064: Topology preserve simplify: unexpected behavior on similar polygons
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 Reporter:  uclaros     |       Owner:  geos-devel@…
     Type:  defect      |      Status:  new
 Priority:  minor       |   Milestone:  3.9.0
Component:  Default     |     Version:  master
 Severity:  Unassigned  |  Resolution:
 Keywords:              |
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Comment (by komzpa):

 Generally speaking Douglas-Peucker should be replaced with Visvalingam-
 Whyatt when doing anything about area. It is easily adaptable for rings.
 The epsilon will be an area then, it is usually ok to square the DP
 epsilon and run VW instead on areas.

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Ticket URL: <https://trac.osgeo.org/geos/ticket/1064#comment:7>
GEOS <http://trac.osgeo.org/geos>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).


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