MATLAB: Limitrate of drawnow limitrate not recognized

drawnowlimitrateMATLAB

I'm trying to use the optional command limitrate like in the following:

    drawnow limitrate;

and am getting the following error every time:

I'm using matlab R2014b. Am I making a simple mistake or is limitrate no longer a valid command?

Best Answer

The 'limitrate' option for the drawnow function was introduced in release R2015a as documented by the first item in the Graphics section of the Release Notes for MATLAB in that release.

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It looks like your x data never changes. That should mean your number of y points also remains constant. One thing to try is to just update the YData rather than creating a new plot.

As for how to stop it manually, you could attach a callback to your figure to detect either a key press or a click in an empty part of the figure window. You can read more about the available callbacks here.

t3=linspace(0, 500, 2000);
x2=linspace(0, 10, 100);
y2=3*sin(0.5*x2-0.1*t3(1)-0.3);
stopAnimation=0;
fig = figure('Visible',"on",...
    'KeyPressFcn',@keyPress, ...
    'ButtonDownFcn',@buttonPress)
                         
h = plot(x2, y2);
xlabel('x(m)','FontSize',15)
ylabel('y(t, x) (m)','FontSize',15)
for i=2:length(t3)
    if stopAnimation
        break
    end
    y2=3*sin(0.5*x2-0.1*t3(i)-0.3);
    h.YData = y2;
    drawnow limitrate
    pause(0.01)
end
function  keyPress(H,E)    
    assignin('base','a',1)
end
function buttonPress(H,E)
    assignin('base','a',1)
end

Best Answer

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