Re: [Boost-bugs] [Boost C++ Libraries] #12439: Problems with 180 and -180 meridian, using bg::cs::geographic<bg::degree>

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12439: Problems with 180 and -180 meridian, using bg::cs::geographic<bg::degree>
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-01-03 17:06:15

#12439: Problems with 180 and -180 meridian, using bg::cs::geographic<bg::degree>
-------------------------------+----------------------------------------
  Reporter:  ostroukhov@…      |      Owner:  barendgehrels
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  geometry
   Version:  Boost 1.61.0      |   Severity:  Problem
Resolution:                    |   Keywords:  geographic return_envelope
-------------------------------+----------------------------------------

Comment (by awulkiew):

 It's because degrees `-180` and `180` are the same longitude. The Ring you
 created is segment-like Polygon (invalid, with area = 0) lying on
 antimeridian so the envelope of this Ring should be `BOX(180 -85, 180 0)`.

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/12439#comment:1>
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