How to formulate the following matrices?

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M
M il 18 Mag 2022
Commentato: M il 19 Mag 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 Commenti
Image Analyst
Image Analyst il 18 Mag 2022
Modificato: Image Analyst il 18 Mag 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 il 18 Mag 2022
Modificato: Catalytic il 18 Mag 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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Risposta accettata

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

Più risposte (1)

Catalytic
Catalytic il 18 Mag 2022
Modificato: Catalytic il 18 Mag 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 Commento
M
M il 19 Mag 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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