change GUI result automatically

Hii... I need help about GUI, because I am just a beginner in MATLAB. I have a simple calculation, say a+b=c. I use slider to change the value of "a" and "b". Here I want the value of "c" changes automatically when I press left arrow or right one of the slider ( either "a" or "b"), without clicking a button.

Thank you very much Muammar

[Jan]

Asnwering is easier, if you ask an explicit question. What have you done so far?

[Muammar]

I did like a water flow in a tank, from 2 sources. The water volume should be the 'c', 2 sources should be 'a' and 'b', and i used a push button to recalculate the volume, but i change 'a' and 'b' used slider. that i want is, when i change the value of 'a' and 'b' using slider, the value of 'c' will automatically change.

Thank you very much,

Muammar

Answer 1

[jeff wu]

did u make it with guide or did you write the gui? you have do give the element that shall change something a callback function like

uicontrol('style','pushbutton',... %some other options,...

[Muammar]

I used 3 edit text for a,b,c and 2 slider for a and b. I have made another push button to calculate that, but is it possible get the result without the pressbutton? I dont know about uicontrol.

Thank you

Answer 2

[jeff wu]

i wast finischt there actually,

..., 'Callback',@myfunction);

then you write somewhere else the function:

function myfunction(~,~) here you write the code for the sum c = a+b; and then with the set method you change the valu in the uicontrol where c is written in end

i hope this was understandable,

i would need your code to be more explicit

best regards, jeff

Answer 3

[Jan]

You can insert the callback of the pushbutton as callback of the sliders also. The slider callbacks are called, when the slider position changes. Then you can update the value of "a" or "b" at first and afterwards call the function, which triggers the calculation.