Move to next and previous iteration in for loop on button press

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Konvictus177
Konvictus177 2021-10-13
编辑： Konvictus177 2021-10-13
Hello,
I am playing a video inside a for loop (for frame = startframe:endframe) and the image updates for each iteration in the for loop.
I want the user to be able to move forward and backward inside the loop depending on which button is pressed. Say "left arrow key" moves to previous iteration and "right arrow key" moves to next iteration.
How can I do this?
Thanks!

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回答（1 个）

KSSV
KSSV 2021-10-13
Ran in:
%Right
for i = 1:10
fprintf('%d\n',i)
end
1 2 3 4 5 6 7 8 9 10
% Left
for i = 10:-1:1
fprintf('%d\n',i)
end
10 9 8 7 6 5 4 3 2 1
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KSSV
KSSV 2021-10-13
When you press the button get the values or some number and then decide whether to go left or right.
Konvictus177
Konvictus177 2021-10-13
How would I change within the loop. Let's say I am at index 40 in my loop and now I want to go left 39,38,37 now I want to go right again 38,39,40, etc.
Can you show an example?
Thanks.

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