PostGIS  3.7.0dev-r@@SVN_REVISION@@

◆ edge_contains_point()

int edge_contains_point ( const GEOGRAPHIC_EDGE *  e,
const GEOGRAPHIC_POINT *  p 
)

Returns true if the point p is on the minor edge defined by the end points of e.

Definition at line 986 of file lwgeodetic.c.

987 {
988  if ( edge_point_in_cone(e, p) && edge_point_on_plane(e, p) )
989  /* if ( edge_contains_coplanar_point(e, p) && edge_point_on_plane(e, p) ) */
990  {
991  LWDEBUG(4, "point is on edge");
992  return LW_TRUE;
993  }
994  LWDEBUG(4, "point is not on edge");
995  return LW_FALSE;
996 }
LW_FALSE
#define LW_FALSE
Definition: liblwgeom.h:94
LW_TRUE
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:93
edge_point_on_plane
int edge_point_on_plane(const GEOGRAPHIC_EDGE *e, const GEOGRAPHIC_POINT *p)
Returns true if the point p is on the great circle plane.
Definition: lwgeodetic.c:723
edge_point_in_cone
int edge_point_in_cone(const GEOGRAPHIC_EDGE *e, const GEOGRAPHIC_POINT *p)
Returns true if the point p is inside the cone defined by the two ends of the edge e.
Definition: lwgeodetic.c:736
LWDEBUG
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:101

References edge_point_in_cone(), edge_point_on_plane(), LW_FALSE, LW_TRUE, and LWDEBUG.

Referenced by edge_intersection(), lwline_covers_lwline(), and lwline_covers_lwpoint().

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