how to use function to output code to control GUIDE
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In my GUIDE, user can adjust number and then the display item will change.
I have already wrote a code like this:
for i=1:maxnumber
k1=eval(['handles.TD',num2str(i),'X']);
k2=eval(['handles.TD',num2str(i),'Y']);
k3=eval(['handles.TD',num2str(i),'R']);
k4=eval(['handles.TD',num2str(i),'AMP']);
k5=eval(['handles.TD',num2str(i),'CD']);
set(k1,'visible','on');
set(k2,'visible','on');
set(k3,'visible','on');
set(k4,'visible','on');
set(k5,'visible','on');
end
The key is last four "set" statement.
Now I want to write a function so I don't need to type this every time.
The code for function is the same as above.
But how can I use function to output "set" statement to control GUIDE?
Also, I found out I cannot use handles in function....is there a solution?
1 个评论
@herb: using eval is not a good way to achieve this, as the blogs, documentation, and this forum have explained multiple times before:
etc, etc
采纳的回答
Jan
2017-5-21
Of course you can use handles in a function - when you provide it as input argument.
Do not use eval to address a field of a struct. This is such ugly and evil. See https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval and hundrets of corresponding discussions in this forum.
function MySetFcn(maxnumber, handles)
for i=1:maxnumber
H = [handles.(sprintf('TD%dX', i)), ...
handles.(sprintf('TD%dY', i)), ...
handles.(sprintf('TD%dR', i)), ...
handles.(sprintf('TD%dAMP', i)), ...
handles.(sprintf('TD%dCD', i))];
set(H,'visible','on');
end
Call this from your callbacks as:
MySetFcn(maxnumber, handles)
The key is last four "set" statement.
The key for what?
But how can I use function to output "set" statement to control GUIDE?
GUIDE is the tool to create a GUI. Do you want to control GUIDE or the GUI?
Also, I found out I cannot use handles in function....is there a solution?
Please explain this claim. Show your code and the error message.
4 个评论
Mahdie Rezaeian
2017-5-21
编辑：Mahdie Rezaeian
2017-5-21
I have the same problem. What I want to do is plotting a column of an Excel file selected by the user from a popup menu. I've replicated the instructions in this video . the function for updating axes named "updateAxes". I tried calling this function in popup menu callback as follows:
set(handles.popupmenu1,'callback', '@(hObject,eventdata)mainGUI(''updateAxes'',hObject,eventdata,guidata(hObject))');
However, it's not working. how should I call updateAxes? I've attached the code and a sample excel sheet for your reference.
herb
2017-5-21
Jan
2017-5-22
@Mahdie: What about:
set(handles.popupmenu1,'callback', ...
@(hObject,eventdata) updateAxes(hObject, eventdata, guidata(hObject)));
Mahdie Rezaeian
2017-5-26
Hi Jan, Thanks for your reply. it works:) The other option is: set(handles.popupmenu1,'callback', 'mainGUI(''updateAxes'',gcbo,[],guidata(gcbo))')
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