Guide handing objects to functions
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Using Guide I have two radiobuttons. When pushing one the other has to be unchecked. So far this is my solution:
function distButton_Callback(hObject, eventdata, handles)
checkThis = get(handles.distButton, 'Value');
checkThat = get(handles.fftButton, 'Value');
if checkThis == checkThat
set(handles.fftButton, 'Value', ~checkThis);
end
Since there are four button pairs a function would save a couple of lines.
Calling the function:
checkThis('distButton', 'fftButton', handles);
However combining handles. with a string does not seem to convert this to 'distButton'
> Reference to non-existent field 'this'.
function checkThis(this, that, handles)
checkThis = get(handles.this, 'Value');
checkThat = get(handles.that, 'Value');
if checkThis == checkThat
set(handles.that, 'Value', ~checkThis);
end
It's probably a simple matter of syntax..
2 个评论
Adam
2018-8-17
Why are you not just placing the radio buttons inside a uibuttongroup which does the mutual exclusivity for you?
Robert Worm
2018-8-17
采纳的回答
ES
2018-8-17
function checkThis(this, that, handles)
checkThis = get(eval(['handles.', this]), 'Value');
checkThat = get(eval(['handles.', that]), 'Value');
if checkThis == checkThat
set(eval(['handles.', that]), 'Value', ~checkThis);
end
3 个评论
Adam
2018-8-17
checkThis = get(handles.( this ), 'Value');
checkThat = get(handles.( that ), 'Value');
would be a lot better. Don't use eval when you don't have to (i.e. never use it!)
Do NOT follow this answer! There is absolutely no point in using ugly eval like that, unless you want to force yourself into writing slow, complex, buggy, hard-to-debug code.
It is so easy to write simpler and much more efficient code:
function checkThis(this, that, handles)
checkThis = get(handles.(this),'Value');
checkThat = get(handles.(that),'Value');
if checkThis==checkThat
set(handles.(that),'Value',~checkThis);
end
Robert Worm
2018-8-17
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