How to change a plot's graph with radiobutton and drawnow?

Hello!

So i have an antenna which receives a signal and then plots the signal. I have a problem on how to make so that when i click on a radiobutton, the graph changes what to plot, i.e, make the signal amplitude bigger.

Here is the code:

    figure;

    %%%%%Buttons%%%
    global h;
    h = uibuttongroup('visible','off','Position',[0 0 .2 1]);
% Create two radio buttons in the button group.
u0 = uicontrol('Style','radiobutton','String','Option 1',...
    'pos',[10 350 100 30],'parent',h,'HandleVisibility','off');
u1 = uicontrol('Style','radiobutton','String','Option 2',...
    'pos',[10 250 100 30],'parent',h,'HandleVisibility','off');

 set(h,'SelectionChangeFcn',@(source,eventdata,handles)selcbk);
set(h,'SelectedObject',[]);  % No selection
set(h,'Visible','on');

    %%%%Buttons end%%%

    h = line(1:numCounters, frame);   

    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    % Read and plot data from the radar
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    % Continue reading frames as long as the plot window is valid
    while(ishandle(h))
        tic;

        global c;
        c = double(radar.GetFrameNormalizedDouble()); %Here we get the values from the antenna

        set(h,'ydata',c);
        drawnow

So the problem is, that how to make that the program plots the graph with the new values, i.e, c=c*2 when I click the second radiobutton and change back to the original signal when I click on the first one? I can't figure out how to use the callback function:

 function selcbk(source,eventdata,handles)

 set(h,'YData', c*2);

Answer 1

[Geoff Hayes]

Raitis - I would avoid using the callback to the radio button and just check the state of the radio button in the while loop. If it is enabled, then multiply c by two. For example

    % Continue reading frames as long as the plot window is valid
    while(ishandle(h))
        tic;
        c = double(radar.GetFrameNormalizedDouble()); %Here we get the values from the antenna
        if get(u1,'Value')
            c = c*2;
        end
        set(h,'ydata',c);
        drawnow;
    end

Try the above and sees what happens!