How to formulate the following matrices?

1 Ansicht (letzte 30 Tage)
M
M am 18 Mai 2022
Kommentiert: M am 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 Kommentare
Image Analyst
Image Analyst am 18 Mai 2022
Bearbeitet: Image Analyst am 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 am 18 Mai 2022
Bearbeitet: Catalytic am 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.

Melden Sie sich an, um zu kommentieren.

Akzeptierte Antwort

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

Weitere Antworten (1)

Catalytic
Catalytic am 18 Mai 2022
Bearbeitet: Catalytic am 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 Kommentar
M
M am 19 Mai 2022
@Catalytic, It could be also, but the above answer give you the transormation matrix directly without need to formulate it.

Melden Sie sich an, um zu kommentieren.

Kategorien

Mehr zu Read, Write, and Modify Image finden Sie in Help Center und File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by