Applying 3D Rotation Matrix
5 views (last 30 days)
Show older comments
I have 2 sets of 3D axes in Matlab. I have a list of points in the first set of 3D axes that I want to apply a rotation matrix to in order to convert them to the same location in the second set of axes. I am a bit rusty with applying rotation matrices, any help is appreciated.
2 Comments
James Tursa
on 13 Dec 2018
Edited: James Tursa
on 13 Dec 2018
You need to form the direction cosine (rotation) matrix that goes from one coordinate frame to the other coordinate frame. You can get the elements of this matrix with the dot products of the coordinate axes that you have. How are these coordinate axes stored?
Accepted Answer
James Tursa
on 13 Dec 2018
Edited: James Tursa
on 13 Dec 2018
You can use this FEX submission by Matt J with your coordinate axes as the inputs to get the rotation matrix R:
Then just multiply your points with that rotation matrix R.
2 Comments
James Tursa
on 14 Dec 2018
Yes. Just give it the three coordinate axes directions in the two sets as the inputs to get the rotation matrix R as the output. Then just multiply all of your other points by R.
More Answers (0)
See Also
Categories
Find more on Graphics Object Programming in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!