Instance Property

altitudeAngle

The altitude (in radians) of the stylus.

Declaration

@property(nonatomic, readonly) CGFloat altitudeAngle;

Discussion

A value of 0 radians indicates that the stylus is parallel to the surface. The value of this property is Pi/2 when the stylus is perpendicular to the surface.

See Also

Getting Touch Attributes

tapCount

The number of times the finger was tapped for this given touch.

timestamp

The time when the touch occurred or when it was last mutated.

type

The type of the touch.

UITouchType

The type of touch received.

phase

The phase of the touch.

UITouchPhase

The phase of a finger touch.

force

The force of the touch, where a value of 1.0 represents the force of an average touch (predetermined by the system, not user-specific).

maximumPossibleForce

The maximum possible force for a touch.

- azimuthAngleInView:

Returns the azimuth angle (in radians) of the stylus.

- azimuthUnitVectorInView:

Returns a unit vector that points in the direction of the azimuth of the stylus.