Main Content

VR Rotation to Rotation Matrix

(To be removed) Convert array/angle rotation to rotation matrix

expand all in page

VR Rotation to Rotation Matrix will be removed in a future release. For more information, see Version History.

  • VR Rotation to Rotation Matrix block

Libraries:
Simulink 3D Animation / Utilities

Description

The VR Rotation to Rotation Matrix block converts the array / angle rotation representation used for defining rotations in virtual reality to a 3-by-3 rotation matrix

Ports

Input

expand all

Input rotation, specified as a 4-element vector in array/angle notation,. The first three elements specify the array of rotation and the fourth element specifies the angle.

Data Types: single | double

Output

expand all

3D rotation, returned as a 3-by-3 columnwise defined matrix, also known as a direction cosine matrix.

A representation of a three-dimensional spherical rotation as a 3-by-3 real, orthogonal matrix R: RTR = RRT = I, where I is the 3-by-3 identity and RT is the transpose of R. This matrix is also known as the direction cosine matrix (DCM). The DCM is the orientation of the object in space, relative to its parent node.

R=(R11R12R13R21R22R23R31R32R33)=(RxxRxyRxzRyxRyyRyzRzxRzyRzz)

Data Types: single | double

Parameters

expand all

Input signal value is considered to be zero if it is equal to or lower than the value set in this parameter. By default, the parameter is set to ε = 1e-12.

Version History

Introduced in R2019a

collapse all

R2023b: To be removed

The VR Rotation to Rotation Matrix will be removed in a future release. Instead, use sim3d classes and Simulation 3D blocks to interface MATLAB® and Simulink® with the Unreal Engine® 3D simulation environment. To get started, see Create 3D Simulations in Unreal Engine Environment.

See Also