PostGIS  2.5.2dev-r@@SVN_REVISION@@

◆ lw_dist3d_line_poly()

int lw_dist3d_line_poly ( LWLINE line,
LWPOLY poly,
DISTPTS3D dl 
)

line to polygon calculation

Definition at line 665 of file measures3d.c.

References define_plane(), DIST_MAX, lw_dist3d_ptarray_poly(), lw_dist3d_ptarray_ptarray(), LWDEBUG, DISTPTS3D::mode, LWLINE::points, and LWPOLY::rings.

Referenced by lw_dist3d_distribute_bruteforce().

666 {
667  PLANE3D plane;
668  LWDEBUG(2, "lw_dist3d_line_poly is called");
669 
670  if (dl->mode == DIST_MAX)
671  {
672  return lw_dist3d_ptarray_ptarray(line->points, poly->rings[0], dl);
673  }
674 
675  if(!define_plane(poly->rings[0], &plane))
676  {
677  /* Polygon does not define a plane: Return distance line to line */
678  return lw_dist3d_ptarray_ptarray(line->points, poly->rings[0], dl);
679  }
680 
681  return lw_dist3d_ptarray_poly(line->points, poly,&plane, dl);
682 }
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:83
POINTARRAY ** rings
Definition: liblwgeom.h:459
int mode
Definition: measures3d.h:44
int define_plane(POINTARRAY *pa, PLANE3D *pl)
Definition: measures3d.c:1167
#define DIST_MAX
Definition: measures.h:43
int lw_dist3d_ptarray_ptarray(POINTARRAY *l1, POINTARRAY *l2, DISTPTS3D *dl)
Finds all combinations of segments between two pointarrays.
Definition: measures3d.c:864
int lw_dist3d_ptarray_poly(POINTARRAY *pa, LWPOLY *poly, PLANE3D *plane, DISTPTS3D *dl)
Computes pointarray to polygon distance.
Definition: measures3d.c:1074
POINTARRAY * points
Definition: liblwgeom.h:424
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