PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ lw_dist3d_distribute_bruteforce()

int lw_dist3d_distribute_bruteforce ( const LWGEOM lwg1,
const LWGEOM lwg2,
DISTPTS3D dl 
)

This function distributes the brute-force for 3D so far the only type, tasks depending on type.

Definition at line 480 of file measures3d.c.

References LINETYPE, lw_dist3d_line_line(), lw_dist3d_line_poly(), lw_dist3d_point_line(), lw_dist3d_point_point(), lw_dist3d_point_poly(), lw_dist3d_poly_poly(), LW_FALSE, LWDEBUGF, lwerror(), lwtype_name(), POINTTYPE, POLYGONTYPE, DISTPTS3D::twisted, and LWGEOM::type.

Referenced by lw_dist3d_recursive().

481 {
482 
483  int t1 = lwg1->type;
484  int t2 = lwg2->type;
485 
486  LWDEBUGF(2, "lw_dist3d_distribute_bruteforce is called with typ1=%d, type2=%d", lwg1->type, lwg2->type);
487 
488  if ( t1 == POINTTYPE )
489  {
490  if ( t2 == POINTTYPE )
491  {
492  dl->twisted=1;
493  return lw_dist3d_point_point((LWPOINT *)lwg1, (LWPOINT *)lwg2, dl);
494  }
495  else if ( t2 == LINETYPE )
496  {
497  dl->twisted=1;
498  return lw_dist3d_point_line((LWPOINT *)lwg1, (LWLINE *)lwg2, dl);
499  }
500  else if ( t2 == POLYGONTYPE )
501  {
502  dl->twisted=1;
503  return lw_dist3d_point_poly((LWPOINT *)lwg1, (LWPOLY *)lwg2,dl);
504  }
505  else
506  {
507  lwerror("Unsupported geometry type: %s", lwtype_name(t2));
508  return LW_FALSE;
509  }
510  }
511  else if ( t1 == LINETYPE )
512  {
513  if ( t2 == POINTTYPE )
514  {
515  dl->twisted=(-1);
516  return lw_dist3d_point_line((LWPOINT *)lwg2,(LWLINE *)lwg1,dl);
517  }
518  else if ( t2 == LINETYPE )
519  {
520  dl->twisted=1;
521  return lw_dist3d_line_line((LWLINE *)lwg1,(LWLINE *)lwg2,dl);
522  }
523  else if ( t2 == POLYGONTYPE )
524  {
525  dl->twisted=1;
526  return lw_dist3d_line_poly((LWLINE *)lwg1,(LWPOLY *)lwg2,dl);
527  }
528  else
529  {
530  lwerror("Unsupported geometry type: %s", lwtype_name(t2));
531  return LW_FALSE;
532  }
533  }
534  else if ( t1 == POLYGONTYPE )
535  {
536  if ( t2 == POLYGONTYPE )
537  {
538  dl->twisted=1;
539  return lw_dist3d_poly_poly((LWPOLY *)lwg1, (LWPOLY *)lwg2,dl);
540  }
541  else if ( t2 == POINTTYPE )
542  {
543  dl->twisted=-1;
544  return lw_dist3d_point_poly((LWPOINT *)lwg2, (LWPOLY *)lwg1,dl);
545  }
546  else if ( t2 == LINETYPE )
547  {
548  dl->twisted=-1;
549  return lw_dist3d_line_poly((LWLINE *)lwg2,(LWPOLY *)lwg1,dl);
550  }
551  else
552  {
553  lwerror("Unsupported geometry type: %s", lwtype_name(t2));
554  return LW_FALSE;
555  }
556  }
557  else
558  {
559  lwerror("Unsupported geometry type: %s", lwtype_name(t1));
560  return LW_FALSE;
561  }
562 }
#define LINETYPE
Definition: liblwgeom.h:85
int lw_dist3d_line_poly(LWLINE *line, LWPOLY *poly, DISTPTS3D *dl)
line to polygon calculation
Definition: measures3d.c:662
#define POLYGONTYPE
Definition: liblwgeom.h:86
int lw_dist3d_poly_poly(LWPOLY *poly1, LWPOLY *poly2, DISTPTS3D *dl)
polygon to polygon calculation
Definition: measures3d.c:682
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition: lwutil.c:218
#define LW_FALSE
Definition: liblwgeom.h:76
int lw_dist3d_point_poly(LWPOINT *point, LWPOLY *poly, DISTPTS3D *dl)
Computes point to polygon distance For mindistance that means: 1)find the plane of the polygon 2)proj...
Definition: measures3d.c:619
int twisted
Definition: measures3d.h:45
int lw_dist3d_point_line(LWPOINT *point, LWLINE *line, DISTPTS3D *dl)
point to line calculation
Definition: measures3d.c:597
#define POINTTYPE
LWTYPE numbers, used internally by PostGIS.
Definition: liblwgeom.h:84
int lw_dist3d_point_point(LWPOINT *point1, LWPOINT *point2, DISTPTS3D *dl)
point to point calculation
Definition: measures3d.c:581
uint8_t type
Definition: liblwgeom.h:398
int lw_dist3d_line_line(LWLINE *line1, LWLINE *line2, DISTPTS3D *dl)
line to line calculation
Definition: measures3d.c:649
#define LWDEBUGF(level, msg,...)
Definition: lwgeom_log.h:88
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190
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