PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ ST_SymDifference()

Datum ST_SymDifference ( PG_FUNCTION_ARGS  )

Definition at line 804 of file postgis/lwgeom_geos.c.

805 {
806  GSERIALIZED *geom1;
807  GSERIALIZED *geom2;
809  LWGEOM *lwgeom1, *lwgeom2, *lwresult ;
810  double prec = -1;
811 
812  geom1 = PG_GETARG_GSERIALIZED_P(0);
813  geom2 = PG_GETARG_GSERIALIZED_P(1);
814  if (PG_NARGS() > 2 && ! PG_ARGISNULL(2))
815  prec = PG_GETARG_FLOAT8(2);
816 
817  lwgeom1 = lwgeom_from_gserialized(geom1) ;
818  lwgeom2 = lwgeom_from_gserialized(geom2) ;
819 
820  lwresult = lwgeom_symdifference_prec(lwgeom1, lwgeom2, prec);
821  result = geometry_serialize(lwresult) ;
822 
823  lwgeom_free(lwgeom1) ;
824  lwgeom_free(lwgeom2) ;
825  lwgeom_free(lwresult) ;
826 
827  PG_FREE_IF_COPY(geom1, 0);
828  PG_FREE_IF_COPY(geom2, 1);
829 
830  PG_RETURN_POINTER(result);
831 }
char result[OUT_DOUBLE_BUFFER_SIZE]
Definition: cu_print.c:267
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:239
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1138
LWGEOM * lwgeom_symdifference_prec(const LWGEOM *geom1, const LWGEOM *geom2, double gridSize)

References lwgeom_free(), lwgeom_from_gserialized(), lwgeom_symdifference_prec(), and result.

Referenced by symdifference().

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