Calling Additional Functions in GUI

Hello Everyone!

Thanks for your attention.

I've created a GUI using GUIDE with lots of edit boxes, what I do in the edit call backs is to check if the input value is valid or not.

I've 3 push buttons, I want to acquire the edit boxes value in the push buttons call back, so I thought of creating a function to do that, also there is a series of plots. So I defined 2 functions at the end of the GUI m file, "Plotter" and "ValueCollector", to plot on the axes which is on the form, and second is to read all the edit boxes values at once.

PROBLEM is: "ValueCollector" does not work in push buttons call back, but it works in the dropdown menu call back, buttons are off until user pick a choice from the dropdown menu, then they will be on, to dropdown menu runs the "ValueCollector" for the first time (I don't know if it's related or not)

% Probe Selector is the popup menu
function Probe_Selector_Callback(hObject, eventdata, handles)
  handles = valueCollector(handles);
  handles.CurrentProbe.X = handles.probe.info(handles.CurrentProbe.Num,2);
  handles.CurrentProbe.Y = handles.probe.info(handles.CurrentProbe.Num,3);
   % some processing based on values collecter by ValueCollector which is 
        % correct
  plotter(handles);      %   Plots everything
  set(handles.arb_button,'Enable','on');
  guidata(hObject,handles);

function arb_button_Callback(hObject, eventdata, handles)
   handles = valueCollector(handles); % this is not working!!
   plotter(handles);
   % some processing
   guidata(hObject,handles);

function [handles] = valueCollector (handles)
  % this collects all the property values of the edits
  handles.initial.Fs = str2num(get(handles.ArbFs_edit,'String'));
  handles.initial.cycles = str2num(get(handles.cycles_edit,'String'));
  handles.initial.fc = str2num(get(handles.fc_edit,'String'));
  handles.initial.radSize = str2num(get(handles.pattern_edit,'String'))/2;
  handles.initial.phaseShift=str2num(get(handles.phaseShift_edit,'String'))*pi/180;
 handles.initial.Mu = str2num(get(handles.Mu_edit,'String'));
 handles.initial.G = str2num(get(handles.G_edit,'String'));
 handles.CurrentProbe.Num = get(handles.Probe_Selector,'Value');
 demo = get(handles.checkbox1,'Value');
 if demo == 1
      handles.initial.demo = 'demo';
  else
      handles.initial.demo = 'non';
  end

"ValueCollector" works file in the popup_callback but it does not work in 2 push buttons that I have! the variable handles that returned by ValueCollector function is not updated!

I used guidata(hObject,handles) at the end of the ValueCollector but the problem is still remains!

I tried ValueCollector(hObject,eventdata,handles) nothing chande, I add a guidata(ho...) after calling ValueCollector in the push buttons, still not working! I'm running out of ideas.

Thanks for your help in advance!

Answer 1

[Joseph Cheng]

Not sure what is going on since i can't reproduce it not updating. Here is a quick test i did using a few edit boxes and pushbuttons. the first one gets and stores whats inside the edit boxes. the second buttons displays whats in handles into the static text fields.

[Salaheddin Hosseinzadeh]

Dear Joseph,

Thanks for the test, I change your test code as follows, and yet it works! It does what I exactly want to do, I'll try to see if I can fix my particular problem according to this instance!

I have a guidata(hObject,handles) at the end of one of the popup should I disable that?! I'm gonna give it a try :(

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
handles = ValueCollector(handles);
set(handles.text3,'String',handles.X);
% guidata(hObject,handles);

function handles = ValueCollector(handles)
handles.X = get(handles.edit1,'String');
handles.Y = get(handles.edit2,'String');
% guidata(hObject,handles);

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
handles = ValueCollector (handles);
set(handles.text3,'String',handles.X)
% set(handles.text4,'String',handles.Y)

[Joseph Cheng]

I don't think the guidata() at the end of the popup would do anything strangely. Maybe put some breakpoints in the code to and see where the handles update breaks down.

Answer 2

[Image Analyst]

Get the string value of edit boxes, not the value, even if what's in there is a number:

handles.X = str2double(get(handles.edit1,'String'));
handles.Y = str2double(get(handles.edit2,'String'));

but that's still not very robust since you are not checking if the user put in some non-numerical text instead of a number.

[Salaheddin Hosseinzadeh]

Hi Image Analyst

Thanks for your answer

I wrote the code roughly, definitely I do this :(

I'll change the code to what exactly (almost) it is