How to load .mat into GUI
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Hi everyone, It occurs an error that i can't understand why.
%load button
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)
[filename,pathname] = uigetfile({'*.mat';'*.*'}, 'Load');
file_load = fullfile(pathname,filename);
set(handles.pushbutton1,'enable','on');
load(file_load);
imshow(handles.E,'Parent',handles.axes3);
imshow(handles.D,'Parent',handles.axes4);
guidata(hObject, handles);
the error is:
??? Error using ==> imshow>validateParent at 307
HAX must be a valid axes handle.
Error in ==> imshow at 221
validateParent(specific_args.Parent)
Error in ==> tent>pushbutton3_Callback at 102
imshow(handles.E,'Parent',handles.axes3);
Error in ==> gui_mainfcn at 96
feval(varargin{:});
Error in ==> tent at 43
gui_mainfcn(gui_State, varargin{:});
Error in ==>
@(hObject,eventdata)tent('pushbutton3_Callback',hObject,eventdata,guidata(hObject))
??? Error while evaluating uicontrol Callback
What i have made wrong? I believe that my workspace is successfully loaded.
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Accepted Answer
Titus Edelhofer
on 9 Nov 2011
Hi Edward,
hmm, you load the handles? That will probably fail because each time you start your GUI, handles.axes3 and handles.axes4 will be different. I would do the following instead
im = load(file_load);
handles.D = im.handles.D;
handles.E = im.handles.E;
imshow(handles.E,'Parent',handles.axes3);
imshow(handles.D,'Parent',handles.axes4);
This way you leave your (other) handles untouched ...
Titus
More Answers (2)
Titus Edelhofer
on 8 Nov 2011
Hi,
hmm, I am wondering why it is
imshow(handles.E,'Parent',handles.axes3);
in the error message but
imshow(handles.image1,'Parent',handles.axes3);
in the code. But apart from that: what variable do you read from the .mat file? And where do you use it? I can't see it in the code ...
Titus
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