Re: [Boost-bugs] [Boost C++ Libraries] #10890: Problem with collinear point/segment and rtree

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #10890: Problem with collinear point/segment and rtree
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-12-22 03:38:28

#10890: Problem with collinear point/segment and rtree
------------------------------------------------+--------------------------
  Reporter:  jon brookshire <jon.brookshire@…>  |      Owner:
      Type:  Bugs                               |  barendgehrels
 Milestone:  To Be Determined                   |     Status:  new
   Version:  Boost 1.57.0                       |  Component:  geometry
Resolution:                                     |   Severity:  Problem
                                                |   Keywords:
------------------------------------------------+--------------------------

Comment (by jon brookshire <jon.brookshire@…>):

 Better still:

 {{{
  static inline return_type relate_one_degenerate(
             DegenerateSegment const& degenerate_segment
             , RobustType d
             , RobustType s1, RobustType s2
             , bool a_degenerate
             )
     {
         // Calculate the ratios where ds starts in s
         //         a1--------->a2         (2..6)
         //              b1/b2      (4..4)
         // Ratio: (4-2)/(6-2)

         RatioType const ratio(d - s1, s2 - s1);

         if ( !ratio.on_segment() )
           return Policy::disjoint();

         return Policy::one_degenerate(degenerate_segment, ratio,
 a_degenerate);
     }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10890#comment:1>
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