PostGIS  2.5.0dev-r@@SVN_REVISION@@
static int _lwt_EdgeRingContainsPoint ( LWT_EDGERING ring,
POINT2D p 
)
static

Definition at line 6607 of file lwgeom_topo.c.

References _lwt_EdgeRingCrossingCount(), _lwt_EdgeRingIterator_begin(), and lwfree().

Referenced by _lwt_FindFaceContainingRing().

6608 {
6609  int cn = 0;
6610 
6612  cn = _lwt_EdgeRingCrossingCount(p, it);
6613  lwfree(it);
6614  return (cn&1); /* 0 if even (out), and 1 if odd (in) */
6615 }
void lwfree(void *mem)
Definition: lwutil.c:244
static int _lwt_EdgeRingCrossingCount(const POINT2D *p, LWT_EDGERING_POINT_ITERATOR *it)
Definition: lwgeom_topo.c:6555
static LWT_EDGERING_POINT_ITERATOR * _lwt_EdgeRingIterator_begin(LWT_EDGERING *er)
Definition: lwgeom_topo.c:6316

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