PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ LWGEOM_dfullywithin()

Datum LWGEOM_dfullywithin ( PG_FUNCTION_ARGS  )

Definition at line 764 of file lwgeom_functions_basic.c.

References error_if_srid_mismatch(), LW_FALSE, lwgeom_from_gserialized(), LWGEOM_maxdistance2d_linestring(), lwgeom_maxdistance2d_tolerance(), PG_FUNCTION_INFO_V1(), and LWGEOM::srid.

Referenced by LWGEOM_dwithin().

765 {
766  double maxdist;
767  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
768  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
769  double tolerance = PG_GETARG_FLOAT8(2);
770  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
771  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
772 
773  if ( tolerance < 0 )
774  {
775  elog(ERROR,"Tolerance cannot be less than zero\n");
776  PG_RETURN_NULL();
777  }
778 
779  error_if_srid_mismatch(lwgeom1->srid, lwgeom2->srid);
780 
781  maxdist = lwgeom_maxdistance2d_tolerance(lwgeom1, lwgeom2, tolerance);
782 
783  PG_FREE_IF_COPY(geom1, 0);
784  PG_FREE_IF_COPY(geom2, 1);
785 
786  /*If function is feed with empty geometries we should return false*/
787  if (maxdist>-1)
788  PG_RETURN_BOOL(tolerance >= maxdist);
789 
790  PG_RETURN_BOOL(LW_FALSE);
791 }
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 dfullywithin calculations.
Definition: measures.c:181
void error_if_srid_mismatch(int srid1, int srid2)
Definition: lwutil.c:338
int32_t srid
Definition: liblwgeom.h:401
#define LW_FALSE
Definition: liblwgeom.h:76
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