ST_Split()

Datum ST_Split

(

PG_FUNCTION_ARGS

)

Definition at line 3340 of file postgis/lwgeom_geos.c.

{
        GSERIALIZED *in, *blade_in, *out;
        LWGEOM *lwgeom_in, *lwblade_in, *lwgeom_out;
 
        in = PG_GETARG_GSERIALIZED_P(0);
        blade_in = PG_GETARG_GSERIALIZED_P(1);
        gserialized_error_if_srid_mismatch(in, blade_in, __func__);
 
        lwgeom_in = lwgeom_from_gserialized(in);
        lwblade_in = lwgeom_from_gserialized(blade_in);
 
        if (!lwgeom_isfinite(lwgeom_in))
        {
                lwpgerror("Input Geometry contains invalid coordinates");
                PG_RETURN_NULL();
        }
 
        if (!lwgeom_isfinite(lwblade_in))
        {
                lwpgerror("Blade Geometry contains invalid coordinates");
                PG_RETURN_NULL();
        }
 
 
        lwgeom_out = lwgeom_split(lwgeom_in, lwblade_in);
        lwgeom_free(lwgeom_in);
        lwgeom_free(lwblade_in);
 
        if ( ! lwgeom_out )
        {
                PG_FREE_IF_COPY(in, 0); /* possibly referenced by lwgeom_out */
                PG_FREE_IF_COPY(blade_in, 1);
                PG_RETURN_NULL();
        }
 
        out = geometry_serialize(lwgeom_out);
        lwgeom_free(lwgeom_out);
        PG_FREE_IF_COPY(in, 0); /* possibly referenced by lwgeom_out */
        PG_FREE_IF_COPY(blade_in, 1);
 
        PG_RETURN_POINTER(out);
}

References gserialized_error_if_srid_mismatch(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_isfinite(), and lwgeom_split().

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