[Boost-bugs] [Boost C++ Libraries] #13444: boost::geometry::buffer returns only partial result (regression over 1.63.0)

Subject: [Boost-bugs] [Boost C++ Libraries] #13444: boost::geometry::buffer returns only partial result (regression over 1.63.0)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2018-02-09 10:44:56

#13444: boost::geometry::buffer returns only partial result (regression over
1.63.0)
------------------------------+----------------------------
 Reporter:  andre.meyer@…     |      Owner:  Barend Gehrels
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  geometry
  Version:  Boost 1.66.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+----------------------------
 using boost::geometry::buffer with multilinestring, only 1 of expected 3
 polygons are returned.

 The fix ist to buffer each linestring separately and union_ them into one
 multipolygon.
 This also turned out to be much faster.

 I do not have a simple example, but a rather complex one, which I will
 attach.

 Version 1.63.0 returned all 3 polygons, but was also rather slow when
 compared with the workaround.

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Ticket URL: <https://svn.boost.org/trac10/ticket/13444>
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