ST_WrapX()

Datum ST_WrapX

(

PG_FUNCTION_ARGS

)

Definition at line 1074 of file lwgeom_functions_basic.c.

{
        Datum gdatum;
        GSERIALIZED *geom_in;
        LWGEOM *lwgeom_in, *lwgeom_out;
        GSERIALIZED *geom_out;
        double cutx;
        double amount;
 
        POSTGIS_DEBUG(2, "ST_WrapX called.");
 
        gdatum = PG_GETARG_DATUM(0);
        cutx = PG_GETARG_FLOAT8(1);
        amount = PG_GETARG_FLOAT8(2);
 
        // if ( ! amount ) PG_RETURN_DATUM(gdatum);
 
        geom_in = ((GSERIALIZED *)PG_DETOAST_DATUM(gdatum));
        lwgeom_in = lwgeom_from_gserialized(geom_in);
 
        lwgeom_out = lwgeom_wrapx(lwgeom_in, cutx, amount);
        geom_out = geometry_serialize(lwgeom_out);
 
        lwgeom_free(lwgeom_in);
        lwgeom_free(lwgeom_out);
        PG_FREE_IF_COPY(geom_in, 0);
 
        PG_RETURN_POINTER(geom_out);
}

References geometry_serialize(), lwgeom_free(), lwgeom_from_gserialized(), and lwgeom_wrapx().

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