ST_CurveToLine()

Datum ST_CurveToLine

(

PG_FUNCTION_ARGS

)

Definition at line 101 of file lwgeom_sqlmm.c.

References geometry_serialize(), lwcurve_linearize(), lwgeom_free(), lwgeom_from_gserialized(), LWGEOM_line_desegmentize(), and PG_FUNCTION_INFO_V1().

Referenced by LWGEOM_curve_segmentize().

{
        GSERIALIZED *geom = PG_GETARG_GSERIALIZED_P(0);
        double tol = PG_GETARG_FLOAT8(1);
        int toltype = PG_GETARG_INT32(2);
        int flags = PG_GETARG_INT32(3);
        GSERIALIZED *ret;
        LWGEOM *igeom = NULL, *ogeom = NULL;

        POSTGIS_DEBUG(2, "ST_CurveToLine called.");

        POSTGIS_DEBUGF(3, "tol = %g, typ = %d, flg = %d", tol, toltype, flags);

        igeom = lwgeom_from_gserialized(geom);
        ogeom = lwcurve_linearize(igeom, tol, toltype, flags);
        lwgeom_free(igeom);

        if (ogeom == NULL)
                PG_RETURN_NULL();

        ret = geometry_serialize(ogeom);
        lwgeom_free(ogeom);
        PG_FREE_IF_COPY(geom, 0);
        PG_RETURN_POINTER(ret);
}

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