There is a similar problem with the intersection algorithm, which I filed here:
https://svn.boost.org/trac/boost/ticket/9206
Regards
Volker
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From: Geometry
[mailto:geometry-bounces@lists.boost.org] On Behalf Of Volker Schöch
Sent: Mittwoch, 3. April 2013 18:31
To: Boost.Geometry library mailing list (geometry@lists.boost.org)
Subject: [geometry] New tickets for old issues: difference/sym_difference and multi-polygons
Hi,
Not sure if this belongs on the mailing list at all, but I filed a couple of Trac tickets today for old issues (1.48) that are still present in 1.52.
sym_difference of non-closed polygons returns closed polygon
https://svn.boost.org/trac/boost/ticket/8375
http://lists.boost.org/geometry/2012/02/1857.php
difference of non-closed polygons returns closed polygon
https://svn.boost.org/trac/boost/ticket/8376
http://lists.boost.org/geometry/2012/02/1829.php
sym_difference yields bad result for large numbers
https://svn.boost.org/trac/boost/ticket/8380
http://lists.boost.org/geometry/2012/02/1849.php
Regards
Volker