ReadonlyscaleChange in scale relative to initial span of gesture.
ReadonlytouchesAll the normalized 2D screen position of the user's touches during a pinch gesture. The normalized coordinates range from ([0-1], [0-1]), (0,0) being top-left and (1,1) being bottom-right.
Returns the name of this object's type.
Returns true if the object matches or derives from the passed in type.
Returns true if this object is the same as other. Useful for checking if two references point to the same thing.
Arguments used with the InteractionComponent#onPinchMove event.