PostGIS  2.2.7dev-r@@SVN_REVISION@@
Datum LWGEOM_dfullywithin ( PG_FUNCTION_ARGS  )

Definition at line 745 of file lwgeom_functions_basic.c.

References error_if_srid_mismatch(), LW_FALSE, lwgeom_from_gserialized(), lwgeom_maxdistance2d_tolerance(), and LWGEOM::srid.

746 {
747  double maxdist;
748  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
749  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
750  double tolerance = PG_GETARG_FLOAT8(2);
751  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
752  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
753 
754  if ( tolerance < 0 )
755  {
756  elog(ERROR,"Tolerance cannot be less than zero\n");
757  PG_RETURN_NULL();
758  }
759 
760  error_if_srid_mismatch(lwgeom1->srid, lwgeom2->srid);
761 
762  maxdist = lwgeom_maxdistance2d_tolerance(lwgeom1, lwgeom2, tolerance);
763 
764  PG_FREE_IF_COPY(geom1, 0);
765  PG_FREE_IF_COPY(geom2, 1);
766 
767  /*If function is feed with empty geometries we should return false*/
768  if (maxdist>-1)
769  PG_RETURN_BOOL(tolerance >= maxdist);
770 
771  PG_RETURN_BOOL(LW_FALSE);
772 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
double lwgeom_maxdistance2d_tolerance(const LWGEOM *lw1, const LWGEOM *lw2, double tolerance)
Function handling max distance calculations and dfyllywithin calculations.
Definition: measures.c:167
void error_if_srid_mismatch(int srid1, int srid2)
Definition: lwutil.c:341
int32_t srid
Definition: liblwgeom.h:383
#define LW_FALSE
Definition: liblwgeom.h:62

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