Rotating 3D cloud matrix data
3 views (last 30 days)
Show older comments
Hi,
I have a 3D cloud point matrix (x,y,z) (39600x3) and I am trying to rotate all the points by a few degrees clockwise. I have been attempting to use 'makeghtform' however I keep getting errors and I have been doing trial and error to try and work out how to complete this task however I seem to be failing. Can anyone please help me?
Thanks
Answers (2)
Jan
on 17 Jun 2019
Edited: Jan
on 17 Jun 2019
Multiplacte the data with a rotation matrix, e.g. obtained by: https://www.mathworks.com/matlabcentral/fileexchange/66446-rotation-matrix
R = RotMatrix(alpha, axisOfRotation);
RotatedPoints = R * Points;
Or without this function:
% Normalized vector:
u = u(:);
u = u ./ sqrt(u.' * u);
% 3D rotation matrix:
x = u(1);
y = u(2);
z = u(3);
mc = 1 - c;
R = [c + x * x * mc, x * y * mc - z * s, x * z * mc + y * s; ...
x * y * mc + z * s, c + y * y * mc, y * z * mc - x * s; ...
x * z * mc - y * s, y * z * mc + x * s, c + z * z .* mc];
0 Comments
See Also
Categories
Find more on Point Cloud Processing 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!