public bool IsPlanar(
	ref GePlane plane = null
)

Public Function IsPlanar ( 
	Optional ByRef plane As GePlane = Nothing
) As Boolean

public:
bool IsPlanar(
	GePlane^% plane = nullptr
)

member IsPlanar : 
        ?plane : GePlane byref 
(* Defaults:
        let _plane = defaultArg plane null
*)
-> bool