zoomIn(_:)
Zooms in by increasing the scaling factor.
Declaration
@IBAction func zoomIn(_ sender: Any?)Discussion
Each invocation of zoomIn muliplies the scaling factor by the square root of 2.
Zooms in by increasing the scaling factor.
@IBAction func zoomIn(_ sender: Any?)Each invocation of zoomIn muliplies the scaling factor by the square root of 2.