PostGIS  2.1.10dev-r@@SVN_REVISION@@
static int gserialized_datum_predicate_2d ( Datum  gs1,
Datum  gs2,
box2df_predicate  predicate 

Support function.

Based on two datums return true if they satisfy the predicate and false otherwise.

Definition at line 593 of file gserialized_gist_2d.c.

References gserialized_datum_get_box2df_p(), LW_FALSE, LW_SUCCESS, and LW_TRUE.

Referenced by gserialized_above_2d(), gserialized_below_2d(), gserialized_contains_2d(), gserialized_left_2d(), gserialized_overabove_2d(), gserialized_overbelow_2d(), gserialized_overlaps_2d(), gserialized_overleft_2d(), gserialized_overright_2d(), gserialized_right_2d(), gserialized_same_2d(), and gserialized_within_2d().

594 {
595  BOX2DF b1, b2, *br1=NULL, *br2=NULL;
596  POSTGIS_DEBUG(3, "entered function");
598  if (gserialized_datum_get_box2df_p(gs1, &b1) == LW_SUCCESS) br1 = &b1;
599  if (gserialized_datum_get_box2df_p(gs2, &b2) == LW_SUCCESS) br2 = &b2;
601  if ( predicate(br1, br2) )
602  {
603  POSTGIS_DEBUGF(3, "got boxes %s and %s", br1 ? box2df_to_string(&b1) : "(null)", br2 ? box2df_to_string(&b2) : "(null)");
604  return LW_TRUE;
605  }
606  return LW_FALSE;
607 }
#define LW_SUCCESS
Definition: liblwgeom.h:55
#define LW_FALSE
Definition: liblwgeom.h:52
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:51
static int gserialized_datum_get_box2df_p(Datum gsdatum, BOX2DF *box2df)
Peak into a GSERIALIZED datum to find the bounding box.

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