write transformation matrix in matlab

To write a transformation matrix in MATLAB, you can use the built-in function affine3d in the Image Processing Toolbox.

Here's an example of how to create a 3D transformation matrix using affine3d:

main.m
% Define transformation parameters
translation = [1, 2, 3]; % translation vector
rotation = [0.5, 0.2, 0.1]; % rotation angles in radians
scaling = [1.2, 1.2, 1.2]; % scaling factors

% Create the 3D transformation matrix
T = compose(affine3d(), translation, rotation, scaling);
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In the above example, we define the translation, rotation, and scaling parameters. Then we use the compose function to create the transformation matrix T using the affine3d object. The resulting matrix T can be applied to a point or a set of points using the transformPointsForward method of the affine3d object.

Note that if you only need a 2D transformation matrix, you can use the affine2d object instead.

I hope this helps!