PostGIS  2.5.0dev-r@@SVN_REVISION@@
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 522 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().

523 {
524  POINTARRAY *pa1, *pa2;
525  int type1 = lwg1->type;
526  int type2 = lwg2->type;
527 
528  LWDEBUGF(2, "lw_dist2d_distribute_fast is called with typ1=%d, type2=%d", lwg1->type, lwg2->type);
529 
530  switch (type1)
531  {
532  case LINETYPE:
533  pa1 = ((LWLINE *)lwg1)->points;
534  break;
535  case POLYGONTYPE:
536  pa1 = ((LWPOLY *)lwg1)->rings[0];
537  break;
538  default:
539  lwerror("Unsupported geometry1 type: %s", lwtype_name(type1));
540  return LW_FALSE;
541  }
542  switch (type2)
543  {
544  case LINETYPE:
545  pa2 = ((LWLINE *)lwg2)->points;
546  break;
547  case POLYGONTYPE:
548  pa2 = ((LWPOLY *)lwg2)->rings[0];
549  break;
550  default:
551  lwerror("Unsupported geometry2 type: %s", lwtype_name(type1));
552  return LW_FALSE;
553  }
554  dl->twisted=1;
555  return lw_dist2d_fast_ptarray_ptarray(pa1, pa2, dl, lwg1->bbox, lwg2->bbox);
556 }
#define LINETYPE
Definition: liblwgeom.h:85
GBOX * bbox
Definition: liblwgeom.h:397
#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:1939
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:395
#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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