blockly > Events > ViewportChange > (constructor)

Events.ViewportChange.(constructor)

Constructs a new instance of the ViewportChange class

Signature:

constructor(opt_top?: number, opt_left?: number, opt_scale?: number, opt_workspaceId?: string, opt_oldScale?: number);

Parameters

Parameter	Type	Description
opt_top	number	(Optional) Top-edge of the visible portion of the workspace, relative to the workspace origin. Undefined for a blank event.
opt_left	number	(Optional) Left-edge of the visible portion of the workspace relative to the workspace origin. Undefined for a blank event.
opt_scale	number	(Optional) The scale of the workspace. Undefined for a blank event.
opt_workspaceId	string	(Optional) The workspace identifier for this event. Undefined for a blank event.
opt_oldScale	number	(Optional) The old scale of the workspace. Undefined for a blank event.