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- detect and ignore triangles with duplicate nodes after converting

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CGAL arbitrary precision numbers to double
This commit is contained in:
Peter Sadrozinski 2014-01-02 19:32:15 -05:00
parent c9074ab45c
commit 2aff051ea7
1 changed files with 5 additions and 1 deletions
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6
src/Lib/terragear/tg_polygon_tesselate.cxx
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@ -11,6 +11,7 @@
#include <simgear/debug/logstream.hxx>
#include "tg_polygon.hxx"
#include "tg_misc.hxx"
/* determining if a face is within the reulting poly */
struct FaceInfo2
@ -142,7 +143,10 @@ void tgPolygon::Tesselate( const std::vector<SGGeod>& extra )
SGGeod p1 = SGGeod::fromDeg( to_double(tri.vertex(1).x()), to_double(tri.vertex(1).y()) );
SGGeod p2 = SGGeod::fromDeg( to_double(tri.vertex(2).x()), to_double(tri.vertex(2).y()) );
AddTriangle( p0, p1, p2 );
/* Check for Zero Area before inserting */
if ( !SGGeod_isEqual2D( p0, p1 ) && !SGGeod_isEqual2D( p1, p2 ) && !SGGeod_isEqual2D( p1, p2 ) ) {
AddTriangle( p0, p1, p2 );
}
++count;
}