PostGIS  2.5.1dev-r@@SVN_REVISION@@

◆ lw_dist2d_distribute_fast()

int lw_dist2d_distribute_fast ( LWGEOM lwg1,
LWGEOM lwg2,
DISTPTS dl 
)

Here the geometries are distributed for the new faster distance-calculations.

Definition at line 526 of file measures.c.

References LWGEOM::bbox, LINETYPE, lw_dist2d_fast_ptarray_ptarray(), LW_FALSE, LWDEBUGF, lwerror(), lwtype_name(), POLYGONTYPE, DISTPTS::twisted, and LWGEOM::type.

Referenced by lw_dist2d_recursive().

527 {
528  POINTARRAY *pa1, *pa2;
529  int type1 = lwg1->type;
530  int type2 = lwg2->type;
531 
532  LWDEBUGF(2, "lw_dist2d_distribute_fast is called with typ1=%d, type2=%d", lwg1->type, lwg2->type);
533 
534  switch (type1)
535  {
536  case LINETYPE:
537  pa1 = ((LWLINE *)lwg1)->points;
538  break;
539  case POLYGONTYPE:
540  pa1 = ((LWPOLY *)lwg1)->rings[0];
541  break;
542  default:
543  lwerror("Unsupported geometry1 type: %s", lwtype_name(type1));
544  return LW_FALSE;
545  }
546  switch (type2)
547  {
548  case LINETYPE:
549  pa2 = ((LWLINE *)lwg2)->points;
550  break;
551  case POLYGONTYPE:
552  pa2 = ((LWPOLY *)lwg2)->rings[0];
553  break;
554  default:
555  lwerror("Unsupported geometry2 type: %s", lwtype_name(type1));
556  return LW_FALSE;
557  }
558  dl->twisted=1;
559  return lw_dist2d_fast_ptarray_ptarray(pa1, pa2, dl, lwg1->bbox, lwg2->bbox);
560 }
#define LINETYPE
Definition: liblwgeom.h:85
GBOX * bbox
Definition: liblwgeom.h:400
#define POLYGONTYPE
Definition: liblwgeom.h:86
int lw_dist2d_fast_ptarray_ptarray(POINTARRAY *l1, POINTARRAY *l2, DISTPTS *dl, GBOX *box1, GBOX *box2)
The new faster calculation comparing pointarray to another pointarray the arrays can come from both p...
Definition: measures.c:1943
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 twisted
Definition: measures.h:52
uint8_t type
Definition: liblwgeom.h:398
#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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