void Zoom(
	MoveDirection zoom,
	bool continuousMove = true,
	double sec = 0
)

Sub Zoom ( 
	zoom As MoveDirection,
	Optional continuousMove As Boolean = true,
	Optional sec As Double = 0
)

void Zoom(
	MoveDirection zoom, 
	bool continuousMove = true, 
	double sec = 0
)

abstract Zoom : 
        zoom : MoveDirection * 
        ?continuousMove : bool * 
        ?sec : float 
(* Defaults:
        let _continuousMove = defaultArg continuousMove true
        let _sec = defaultArg sec 0
*)
-> unit