How can I increase GUI slider steps?

I have 168 MRI images to scroll. But my slider goes 1,3,5,6,8,10...almost every second image is shown. I've count them and turn out to be that slider has a exactly hundred steps. How can I increase that steps that slider shows one by one image?
Thanks.

2 Comments

Stephen23
Stephen23 on 24 Feb 2019
Edited: Stephen23 on 24 Feb 2019
Note that the accepted answer is incorrect. The actual required limits are:
[1/(maxNumberOfImages-1) , 10/(maxNumberOfImages-1)]
^ ^^^ ^ ^^^ missing in the answer
The general solution is actually:
stepSize/(maxLimit-minLimit)
which should make the mistake in the accepted answer clear. See also:
Good catch Stephen. I've made the change in case someone sees only my answer below and not your correction. Thanks!

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 Accepted Answer

Image Analyst
Image Analyst on 5 Nov 2012
Edited: Image Analyst on 24 Feb 2019
To setup:
maxNumberOfImages = 168;
set(handleToSlider, 'Min', 1);
set(handleToSlider, 'Max', maxNumberOfImages);
set(handleToSlider, 'Value', 1);
set(handleToSlider, 'SliderStep', [1/(maxNumberOfImages-1) , 10/(maxNumberOfImages-1) ]);
To use and find out which value the user is on:
imageNumberSelected = int32(get(handleToSlider, 'Value'));

3 Comments

Works! I didnt have the last line:
set(handleToSlider, 'SliderStep', [1/maxNumberOfImages , 10/maxNumberOfImages ]);
If you have time can you explain why is 1/max and 10/max.
Thank you very much.
The two values for the SliderStep property specify how much the slider moves when you hold and scroll it and how much it moves you click the arrows at the side.
exactly the answer i was looking for!

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More Answers (1)

Andy
Andy on 17 Nov 2017
this ('SliderStep' property) doesn't exist in slider object of the gui designer.

1 Comment

I find that hard to believe. Attach a screenshot of the property inspector with your slider properties showing.

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