Instance Property

rotation

The orientation, as a vector of Euler angles in radians, of the transform relative to its parent coordinate space.

Declaration

@property(nonatomic, readwrite) vector_float3 rotation;

Discussion

The three components of this vector describe counterclockwise rotation around the corresponding axes. In a coordinate system where the negative z-axis direction is considered “forward”, these components are pitch (rotation about the x-axis), yaw (rotation about the y-axis), and roll (rotation about the z-axis).

Together with the translation, scale, and shear properties, this property defines the local coordinate space for any object affected by the transform, relative to a parent coordinate space. Use the matrix property to work with the complete transform.

If the transform includes time-based information, reading this property returns the rotation as of the earliest time sample (as reported by the minimumTime property). Writing to this property erases any time-sampled data for the rotation factor. To work with time-sampled data from an animated transform, use the rotationAtTime: and setRotation:forTime: methods.

See Also

Using Factors of a Static Transform

translation

The x-, y-, and z-axis offsets of the transform relative to its parent coordinate space.

scale

The x-, y-, and z-axis scale factors of the transform relative to its parent coordinate space.

shear

The x-, y-, and z-axis shear factors of the transform relative to its parent coordinate space.

- setIdentity

Sets all factors of the transform to those of the identity transformation.