MATLAB: Did I get the same value from radio button in a buttongroup

gui

When I click the button OK, it displays same value, while RGB is selected, value is 1, and HSV should be 0, but I can get the same value. I have attached the .m file and .fig file above

Best Answer

You are always asking for the Selected object's 'Value'. This will always return 1 because it is the selected object.

You should compare SelectedObject against handles.rgb instead, e.g.

method_selection = get(handles.uibuttongroup1,'SelectedObject') == handles.rgb;

or you could just check the RGB button itself for its value e.g.

method_selection = get( handles.rgb, 'Value' )

though this only works if you have only two options so you can interpret it as a boolean. Otherwise you would need a switch statement to compare SelectedObject against each of your buttons (or use the 'Tag' from the SelectedObject, but it still needs a switch statement or if-else block)

Related Solutions

MATLAB: GUIDE and buttongroup

Yes, the 'SelectedObject' is a handle. You could do this:

h=get(handles.BW_buttongroup,'SelectedObject');
get(h,'Tag')

MATLAB: GUI Popup Menu and Listbox Default

Scott - if you want the (default or user-selected) values from the list box and popup menu to be used in the code/program, then use the handles for these two controls/widgets to get that data. If you are using GUIDE to design your GUI, then use the handles structure which "manages" handles to all of the controls to obtain the data. For example, if you have a push button that executes some code based on the selections in the listbox (tagged as listbox1) and the popup menu (tagged as popupmenu1), then your push button callback could look something like

 function pushbutton1_Callback(hObject,eventdata,handles)
 % get the selection from the listbox
 lbItems     = get(handles.listbox1,'String');
 lbSelection = lbItems{get(handles.listbox1,'Value')}
 % get the selection from the popup menu
 pmItems     = get(handles.popupmenu1,'String');
 pmSelection = pmItems{get(handles.popupmenu1,'Value')}
 % do something with the selections

Note that since you are selecting items from a cell array of strings (either lbItems or pmItems) then if you are expecting numeric data, you would have to convert it accordingly.

If you are not using GUIDE, then you can just follow the above using the appropriate handles from when you created the controls.

Try the above and see what happens!

Best Answer

Related Solutions

MATLAB: GUIDE and buttongroup

MATLAB: GUI Popup Menu and Listbox Default

Related Question