if/else/then gui?

Question

James Hendren 2013-7-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/82401-if-else-then-gui

So in my gui I have 3 popup menus each with 2 selections. I need to base code on each selection. for example

    if get(popupmenu1.handles,'value')==1
    (insert code here) for value of popupmenu 2
    (insert code here) for value of popupmenu 3
    Inesrt my own function to be run dependent on the three values

I would need code that would get the value from popupmenu2, and then 3. Then I would run my a specific fitting procedure for the selections. By combinatorics there should be 8 combinations, and I would like my code to be simple. Can anyone help with that? Thanks in advance

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Answer 1

Image Analyst 2013-7-17

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https://ww2.mathworks.cn/matlabcentral/answers/82401-if-else-then-gui#answer_92077

在 MATLAB Online 中打开

What's the difficulty? You already know how to get the selections:

popupValue1 = get(popupmenu1.handles,'value');
popupValue2 = get(popupmenu2.handles,'value');
popupValue3 = get(popupmenu3.handles,'value');

And you know how (or should know how) to construct if/then/else blocks, so where are you having trouble?

if popupValue1==1 && popupValue2==1 && popupValue3==1
  % Some code
elseif popupValue1==1 && popupValue2==1 && popupValue3==2
  % Some code
elseif popupValue1==1 && popupValue2==2 && popupValue3==1
  % Some code
elseif popupValue1==1 && popupValue2==2 && popupValue3==2
  % Some code
elseif popupValue1==2 && popupValue2==1 && popupValue3==1
  % Some code
elseif popupValue1==2 && popupValue2==1 && popupValue3==2
  % Some code
elseif popupValue1==2 && popupValue2==2 && popupValue3==1
  % Some code
elseif popupValue1==2 && popupValue2==2 && popupValue3==2
  % Some code
end

There's your eight possible cases, but I think you already knew that, so please clarify.

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Image Analyst 2013-7-17

James comment moved here:

I wanted to know if there was a cleaner way to do it...

So it would retrieve the values of 1,2,and 3 without having to type all the steps per se

I was wondering if it could be done in 3 steps rater than 8

Image Analyst 2013-7-17

You can't retrieve them all without retrieving them all, with get(). I think 3 ifs with ifs nested even deeper is a lot more complicated than the straightforward and easy-to-understand way I gave.

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