How to formulate the following matrices?

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M
M le 18 Mai 2022
Commenté : M le 19 Mai 2022
How to formulate the following matrices? (which is called the transformation matrices)
Theta is the degree angle which stored in file 'Angles' ,,, x,y is the origins which stored in file origin
T = [cos(theta(i)) -sin(theta(i)) x(i)
sin(theta(i)) cos(theta(i)) y(i)
0 0 1]
  2 commentaires
Image Analyst
Image Analyst le 18 Mai 2022
Modifié(e) : Image Analyst le 18 Mai 2022
You formulated a matrix T. What's the problem? Explain in more detail after reading this:
For example you might include a diagram to show what needs to be rotated.
FYI
Catalytic
Catalytic le 18 Mai 2022
Modifié(e) : Catalytic le 18 Mai 2022
I need help in iterating my thetas and origins into this matrix and storing the results.
You shouldn't. It's a trivial Matlab for-loop exercise.

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Réponse acceptée

Matt J
Matt J le 18 Mai 2022
T=makehgtform('translate',[x(i),y(i),0],'zrotate',theta(i));
T=T([1,2,4],[1,2,4])

Plus de réponses (1)

Catalytic
Catalytic le 18 Mai 2022
Modifié(e) : Catalytic le 18 Mai 2022
Why not just -
T=zeros(3,3,n);
for i=1:n
T(:,:,i) = [cos(theta(i)) -sin(theta(i)) x(i)
sin(theta(i)) cos(theta(i)) y(i)
0 0 1];
end
  1 commentaire
M
M le 19 Mai 2022
@Catalytic, It could be also, but the above answer give you the transormation matrix directly without need to formulate it.

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