[geos-devel] [GEOS] #434: Invalid (?) buffer output

[GEOS]

#434: Invalid (?) buffer output
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 Reporter:  yabo        |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:                            
Component:  Default     |     Version:  svn-trunk                 
 Severity:  Unassigned  |    Keywords:                            
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 Hi,

 I'm facing a case where a buffer returns an empty polygon while I believe
 it shouldn't.

 I attached a C++ program demonstrating the problem. I tried it against
 geos 3.2.2 and geos-svn r2999.

 The problem is in the negative buffer of a polygon. For a given value it
 works perfectly (image attached) but if in increase this value by one it
 returns an empty polygon which, given the picture, it shouldn't (or I
 believe so at least).

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Ticket URL: <http://trac.osgeo.org/geos/ticket/434>
GEOS <http://geos.refractions.net/>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).