PostGIS  2.4.9dev-r@@SVN_REVISION@@

◆ lw_dist2d_point_line()

int lw_dist2d_point_line ( LWPOINT *  point,
LWLINE *  line,
DISTPTS *  dl 
)

point to line calculation

Definition at line 589 of file measures.c.

References getPoint2d_cp(), lw_dist2d_pt_ptarray(), LWDEBUG, LWPOINT::point, and LWLINE::points.

Referenced by lw_dist2d_distribute_bruteforce().

590 {
591  const POINT2D *p;
592  LWDEBUG(2, "lw_dist2d_point_line is called");
593  p = getPoint2d_cp(point->point, 0);
594  return lw_dist2d_pt_ptarray(p, line->points, dl);
595 }
LWDEBUG
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:83
LWPOINT::point
POINTARRAY * point
Definition: liblwgeom.h:411
getPoint2d_cp
const POINT2D * getPoint2d_cp(const POINTARRAY *pa, int n)
Returns a POINT2D pointer into the POINTARRAY serialized_ptlist, suitable for reading from...
Definition: lwgeom_api.c:373
lw_dist2d_pt_ptarray
int lw_dist2d_pt_ptarray(const POINT2D *p, POINTARRAY *pa, DISTPTS *dl)
search all the segments of pointarray to see which one is closest to p1 Returns minimum distance betw...
Definition: measures.c:1049
LWLINE::points
POINTARRAY * points
Definition: liblwgeom.h:422
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