The longitudinal orientation of the emission angle. Animatable.
- iOS 5.0+
- macOS 10.6+
- Mac Catalyst 13.0+
- tvOS 9.0+
The emission longitude is the orientation of the emission angle in the xy-plane. it is also often referred to as the azimuth.
The default value of this property is
Setting Emitter Cell Motion Attributes
The rotational velocity, measured in radians per second, to apply to the cell. Animatable.
The amount by which the spin of the cell can vary over its lifetime. Animatable.
The angle, in radians, defining a cone around the emission angle. Animatable.