ScaleStartEvent
ScaleStartEvent
class has the following properties:
focal_point_x
The x component of the focal point of the pointers in contact with the screen.
focal_point_y
The y component of the focal point of the pointers in contact with the screen.
local_focal_point_x
The x component of the focal point of the pointers in contact with the screen.
local_focal_point_y
The y component of the focal point of the pointers in contact with the screen.
pointer_count
The number of pointers being tracked by the gesture recognizer.