PostGIS  2.2.7dev-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 508 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().

509 {
510  POINTARRAY *pa1, *pa2;
511  int type1 = lwg1->type;
512  int type2 = lwg2->type;
513 
514  LWDEBUGF(2, "lw_dist2d_distribute_fast is called with typ1=%d, type2=%d", lwg1->type, lwg2->type);
515 
516  switch (type1)
517  {
518  case LINETYPE:
519  pa1 = ((LWLINE *)lwg1)->points;
520  break;
521  case POLYGONTYPE:
522  pa1 = ((LWPOLY *)lwg1)->rings[0];
523  break;
524  default:
525  lwerror("Unsupported geometry1 type: %s", lwtype_name(type1));
526  return LW_FALSE;
527  }
528  switch (type2)
529  {
530  case LINETYPE:
531  pa2 = ((LWLINE *)lwg2)->points;
532  break;
533  case POLYGONTYPE:
534  pa2 = ((LWPOLY *)lwg2)->rings[0];
535  break;
536  default:
537  lwerror("Unsupported geometry2 type: %s", lwtype_name(type1));
538  return LW_FALSE;
539  }
540  dl->twisted=1;
541  return lw_dist2d_fast_ptarray_ptarray(pa1, pa2, dl, lwg1->bbox, lwg2->bbox);
542 }
#define LINETYPE
Definition: liblwgeom.h:71
GBOX * bbox
Definition: liblwgeom.h:382
#define POLYGONTYPE
Definition: liblwgeom.h:72
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:1928
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition: lwutil.c:188
#define LW_FALSE
Definition: liblwgeom.h:62
int twisted
Definition: measures.h:28
uint8_t type
Definition: liblwgeom.h:380
#define LWDEBUGF(level, msg,...)
Definition: lwgeom_log.h:55
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:74

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