- Shift your 3D data so that its centroid is at the origin.
- Use “rotm” to rotate this centered data.
- Calculate the specific 3D Cartesian coordinates on the surface of the sphere that correspond to your given “sphereRadius”, “azimuth”, and “elevation”.
- Shift the entire rotated dataset by adding these calculated target coordinates to every point.
Translate and rotate data on a sphere
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I am working on a problem to rotate a 3D dataset of a plane and place it on the surface of a sphere at a certain elevation and azimuth angle. Here is a pseudo code in MATLAB - any suggestions?
data = rand(100,3);
sphereRadius = 10; azimuth = -70; elevation = 25;
rotm = eul2rotm([azimuth 90-elevation 0]*pi/180)
dataNew = (data-mean(data) + [0 0 sphereRadius])*rotm
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Prathamesh
le 6 Juin 2025
I understand that you want to rotate a 3D dataset and place it on a sphere at a certain elevation and angle.
You can try these steps:
This moves the plane from the origin to its final desired location on the sphere's surface.
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