Quaternion to Rotation Matrix
Converts a quaternion to a rotation matrix.
Library
MATLAB Command Line
Click to copy the following command line to the clipboard. Then paste it in the MATLAB Command Window:
qc_open_library('quarc_library/Math Operations/Quaternions')Description
The Quaternion to Rotation Matrix block converts a uit quaternion to a 3x3 rotation matrix.
The block assumes the input is a unit quaternion in order to reduce its computation time, particularly since most of the Quaternion blocks deal with unit quaternions. To normalize a quaternion in order to get a unit quaternion, use the Normalize block, which can normalize vectors or quaternions.
Input Ports
q
The input is the unit quaternion to convert to a rotation matrix.
Output Ports
R
The output is a 3x3 rotation matrix. Multiplying this rotation matrix by a vector (i.e. y = Ru) will rotate the vector in the same way as the quaternion when the Quaternion Rotate Vector block is used.
Data Type Support
This block accepts inputs of type double. The block output is
of type double.
Parameters and Dialog Box
The Quaternion to Rotation Matrix block has no parameters.
Targets
|
Target Name |
Compatible* |
Model Referencing |
Comments |
|---|---|---|---|
|
Yes |
Yes |
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|
Yes |
Yes |
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Yes |
Yes |
||
|
Yes |
Yes |
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Yes |
Yes |
||
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Yes |
Yes |
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Yes |
Yes |
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|
Yes |
Yes |
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Yes |
Yes |
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Yes |
Yes |
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|
Yes |
Yes |
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Yes |
Yes |
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Yes |
Yes |
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|
Yes |
Yes |
Last fully supported in QUARC 2018. |
|
|
Rapid Simulation (RSIM) Target |
Yes |
Yes |
|
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S-Function Target |
No |
N/A |
Old technology. Use model referencing instead. |
|
Normal simulation |
Yes |
Yes |
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