PostGIS  2.2.8dev-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 982 of file lwgeodetic.c.

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

Referenced by edge_distance_to_point(), and edge_intersection().

983 {
984  if ( edge_point_in_cone(e, p) && edge_point_on_plane(e, p) )
985  /* if ( edge_contains_coplanar_point(e, p) && edge_point_on_plane(e, p) ) */
986  {
987  LWDEBUG(4, "point is on edge");
988  return LW_TRUE;
989  }
990  LWDEBUG(4, "point is not on edge");
991  return LW_FALSE;
992 }
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:50
#define LW_FALSE
Definition: liblwgeom.h:62
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:61
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:738
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:725
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