MATLAB: Hi. i have two guis main and sub . i have stored inputs from all the edit boxes in sub in a variable, var. i need to tranfer var to main gui.and use it for further logic.kindly help.

guipassing variables

function data_Callback(hObject, eventdata, handles)
% hObject    handle to data (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
points.T=str2double(get(handles.edit1,'userdata'));
points.ES=str2double(get(handles.edit2,'userdata'));
points.ISlower=str2double(get(handles.edit3,'userdata'));
points.ISupper=str2double(get(handles.edit4,'userdata'));
points.G=str2double(get(handles.edit5,'userdata'));
set(handles.data,'userdata',points);
close(details);

this is the call back of a pushbutton in sub.

i need to transfer the variable 'points' to main function pushbutton callback.

Best Answer

Hi Alankrita, you can use assignin command to save the variables in base workspace and use evalin command to access them from the main gui

Related Solutions

MATLAB: Get variables to Workspace

Each function has its own workspace, because this is (one of) the intention(s) of a function. Therefore this line must fail:

save('Variables.m', Total, Individual, defaultval)

It tries to save the variables, whose names are stores as Strings to the variables Total, Individual, and defaultval to the file 'Variables.m'. This contains several problems:

The variables Total, Individual, and defaultval are not defined in the current workspace, which is the workspace of the subfunction checkbox1_Callback.
Saving to an M-file is a bad idea, because the resulting file will not have a proper Matlab-Syntax. Use save to write binary files.
You do not want to write the variable whose name is store in the variable Total, but the variable called 'Total'. Then you need the name as a string:

save('Variables.mat', 'Total')

There are more problems in the posted code: The callbacks of the buttons do not store the values permanently, but only in their current workspace, which vanishes as soon as the function is left. I do not think that close is useful in the buttons callbacks, because it prevents any further activities with the selected values.

Please explain what you want to happen with the variables. "Save in the workspace" requires too much guessing for an answer.

MATLAB: Create a popup menu based on dynamic data

Hi I spoke to someone and eventually figured it out so thank for your reply anyway. The data is stored in a cell array and i had a push button to select the data. But the problem was in defining the string to be used and not putting the correct thing in the callback part of the code. The code below is what seems to work.

% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB


% handles    structure with handles and user data (see GUIDATA)

% Extract curve information
ci = handles.wlog.curve_info(2:end, 1);
handles.ci = ci;
% Update handles structure
guidata(handles.figure1, handles);
% Set popupmenu1 string for list
set(handles.popupmenu1,'string',ci)
% --- Executes on selection change in popupmenu1.
function popupmenu1_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)

% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% Hints: contents = cellstr(get(hObject,'String')) returns popupmenu1 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from popupmenu1
%data = evalin('base','ci');
data = guidata(handles.figure1);
set(hObject, 'String', data.handles.ci)
% --- Executes during object creation, after setting all properties.
function popupmenu1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called
% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

Best Answer

Related Solutions

MATLAB: Get variables to Workspace

MATLAB: Create a popup menu based on dynamic data

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