Any help on this would be much aprpeciated as it is the final part I am stuck on for a project, and have next to no help as teaching is 100% online. Thanks!
Dot indexing is not supported for variables of this type when trying to write value into static text box
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Samuel Leeney
il 16 Ott 2020
Risposto: Image Analyst
il 17 Ott 2020
function text7_CreateFcn(hObject, eventdata, handles)
value=1;
set(handles.text7, 'String', num2str(value))
I am trying to add a value that will be determined by a slider in my GUI into the text of a static text box, but recieve the error message 'Dot indexing is not supported for variables of this type'
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Image Analyst
il 17 Ott 2020
Do not put anything into the CreateFcn() functions of controls. If you want something to be initialized with a value, then put that value into the String property of the control in GUIDE, not in the CreateFcn.
Now, to get the value of a slider and put it in the text box as you move the slider, you'd put it into the callback function of the slider, not the callback of the text box.
function slider1_CallbackFcn(hObject, eventdata, handles)
value = handles.slider1.Value;
textLabel = sprintf('Slider = %.3f', value);
% Update text box
handles.text7.String = textLabel;
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Più risposte (2)
Fangjun Jiang
il 16 Ott 2020
Modificato: Fangjun Jiang
il 16 Ott 2020
set(hObject, 'String', num2str(value))
see this comment ?
% hObject handle to edit1 (see GCBO)
% handles empty - handles not created until after all CreateFcns called
4 Commenti
Rik
il 17 Ott 2020
No, set(hObject,'String',num2str(value)).
Using a programmatic GUI (and not AppDesigner) offers a wide variety of benefits. I would encourage you to check out the thread I linked in my previous comment.
Walter Roberson
il 17 Ott 2020
function text7_CreateFcn(hObject, eventdata, handles)
value = 1;
set(hObject, 'String', num2str(value))
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