Rotating 3D cloud matrix data

2 次查看（过去 30 天）
Kelly
Kelly 2019-6-17
编辑： Jan 2019-6-17
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

请先登录，再回答此问题。

回答（2 个）

Star Strider
Star Strider 2019-6-17
The rotate function could be an option.
Jan
Jan 2019-6-17
编辑：Jan 2019-6-17
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];

类别

在 Help Center 和 File Exchange 中查找有关 Point Cloud Processing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by