Dear All, I am new to MATLAb GUI and want to create one. My program should work in the following sequence. 1) Select option of polarity from a pop-up menu (total two options are available) 2) load file according to polarity selected 3) execute part

My Matlab script is as follows (which works perfectly but i have to change it to GUI for user readiness)

R_pp=[]; Vf_pp=[];

for i=1:Nmeas_pp

      Vf_pp=vertcat(Vf_pp,x_pp(i),y_pp(i));

      k=B_pp(i)/(2*rigidity); % m^(-1)

      M11_pp=cos(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) + k*sin(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) - cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) - k*cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k);
      M12_pp=cos(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) - (sin(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k + (cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k;
      M13_pp=cos(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) - k*sin(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) + cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) - k*cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l));
      M14_pp=cos(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) + cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) + (sin(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k + (cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k;

      M31_pp=k*sin(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - cos(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) - cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) + k*cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l));
      M32_pp= -cos(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) - cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - (sin(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k - (cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k;
      M33_pp=cos(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) + k*sin(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) - cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) - k*cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k);
      M34_pp=cos(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) - (sin(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k + (cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k;

      Rlinex_pp= [M11_pp, M12_pp, M13_pp, M14_pp];
      Rliney_pp= [M31_pp, M32_pp, M33_pp, M34_pp];

      R_pp=vertcat(R_pp,Rlinex_pp,Rliney_pp);
  end

R_mp=[];
Vf_mp=[];
for i=1:Nmeas_mp

      Vf_mp=vertcat(Vf_mp,x_mp(i),y_mp(i));

      k=B_mp(i)/(2*rigidity); % m^(-1)

      M11_mp=cos(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) - k*sin(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) + cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) - k*cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k);
      M12_mp=cos(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) + cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) + (sin(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k + (cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k;
      M13_mp=cos(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) + k*sin(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) - k*cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l));
      M14_mp=cos(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) - cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - (sin(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k + (cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k;

      M31_mp=cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) - k*sin(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - cos(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) + k*cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l));
      M32_mp=cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) - cos(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) + (sin(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k - (cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k;
      M33_mp=cos(k*l)^2*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)) - k*sin(k*l)^2*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) + cos(k*l)*sin(k*l)*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2) - k*cos(k*l)*sin(k*l)*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k);
      M34_mp=cos(k*l)^2*(D*cos(k*l)^2 + (cos(k*l)*sin(k*l))/k) + cos(k*l)*sin(k*l)*(sin(k*l)^2/k + D*cos(k*l)*sin(k*l)) + (sin(k*l)^2*(cos(k*l)*sin(k*l) - D*k*sin(k*l)^2))/k + (cos(k*l)*sin(k*l)*(cos(k*l)^2 - D*k*cos(k*l)*sin(k*l)))/k;

      Rlinex_mp= [M11_mp, M12_mp, M13_mp, M14_mp];
      Rliney_mp= [M31_mp, M32_mp, M33_mp, M34_mp];

      R_mp=vertcat(R_mp,Rlinex_mp,Rliney_mp);
  end

lsqr(R_pp, Vf_pp)
lsqr(R_mp, Vf_mp)

Answer 1

[Adam Danz]

Hello Sumera,

If you've already got the code, the hard part is done :) To start with the GUI, I'll recommend using guide().

From matlab command window, run

guide

which will open a window. Select the "Create new GUI' tab, the select "Blank GUI", then "OK" button. This will open an untitled figure where you can drag and drop GUI components and design your GUI. Hover your mouse over the GUI components on the left to see what they are. You'll see pop-up Menu and others. Once you drag them to the figure space, right click on the component and open "property inspector". Here you'll have all of the options available for that component. You can search for answers on google or within this forum to learn about those options.

When you save the figure it will produce code with callback functions etc. If you get stuck, feel free to ask follow-up questions.

[Adam Danz]

[response to deleted comment]

You'll need to be more specific. What's not working? Is there an error? Is there unexpected behavior?

One thing to keep in mind is that once the pushbutton1_Callback() is finished running, you'll lose the values to all variables within that function (unless they are global which I don't recommend).

Instead of loading the file into the caller workspace, do you intend to load it into the base workspace?

[Sumera Yamin]

I managed to deal with file loading. My next question is if i want to display output of the .m file in GUI panel, should i use a static or edit text and then set the handles using "num2str" for the display. How to link and display the result from .m file to GUI?

[Adam Danz]

It depends on whether or not you want the user to interact with the text.

A static text will display in the GUI but the user will not be able to edit it. An edit text box will also display and you have the option to allow the user to edit it.

I'm not sure what you mean by 'set the handles'. The object will already have a handle when it's created. You'll use the handle to write text within that object.

For example, if your edit box has the handle 'edit1'

edit1.String = 'hello world'; 
edit1.String = sprintf('c/d = %.2f', pi); 
edit1.String = sprintf('line 1\nline2');
edit1.String = num2str(42);

[Sumera Yamin]

I see...so i do not want user to edit it. can you please explain what following lines in your answer means? i do not understood it.

edit1.String = sprintf('c/d = %.2f', pi); 
edit1.String = sprintf('line 1\nline2');

[Adam Danz]

help sprintf

sptrinf() formats numbers.

pi = 3.141592653.... but I only want to display the first 2 decimal places. Run that line of code to see the result.

The '\n' part of the 2nd example makes a new row of text. Run that line to see the result.

[Adam Danz]

Question copied here: Hi, but how would i link the result of my code in .m file (lsqr(R_pp, Vf_pp) in my original code) to the GUI?

You have to use the handle to the object. In my code above, 'edit1' is the handle to the object. If you're using GUIDE, use the 'handles' structure.

handles.edit1.String = 'blah';

Answer 2

[Sumera Yamin]

Thank you very much for the clarification.

[Sumera Yamin]

Hi, but how would i link the result of my code in .m file (lsqr(R_pp, Vf_pp) in my original code) to the GUI?