MATLAB: GUI Live Plot Issues

Question

Hi there,

I am attempting to run a GUI that will output a plot of position obtained from a video. There are nested for loops for stepping through a video, then finding points to plot. As these points are found I would like them to all go to the same plot. My issue is that the axes go crazy as they autosize each time I initialize scatter- despite using hold on. Below is a cut down version of my code (I think it should be enough to represent the situation).

axes(handles.axes2)
set(handles.axes2,'Ydir','reverse');
xlim([0,720]);
ylim([0,480]);
grid on
 for i = 1:numframes
       if get(handles.stopper,'UserData')
        pause on
        uiwait
        pause off
       end
       for j:(something relating to bboxes)
       dataxy = calculations
       scatter(datax,datay,'Parent',handles.axes2)
       draw now
       hold on
       end
       for k:(something relating to centroids)
       dataxy = calculations2
       scatter(datax,datay,'Parent',handles.axes2)
       draw now
       hold on
       end
   end

Any help is greatly appreciated.

Best regards,

Will

Answer 1

hold(handles.axes2, 'on')