MATLAB: How to update axes in a GUI properly in a while loop

3d plotsanimationaxesaxisfigureguiimage analysislooploopsplotplottingwhile loop

Hello there,
Im currently trying to animate some data in a GUI. Since i interrupt the animation by hand i created an endless while loop updating all 5 axes like this
while true
      plotting_index = plotting_index+1;
      axes(handles.axes1)
      scatter3(scatter data);
      axis([xmin xmax ymin ymax zmin zmax])
      view(azimuth,elevation);
      axes(handles.axes2)
      scatter3(scatter data);
      axis([xmin xmax ymin ymax zmin zmax])
      view(azimuth2,elevation2);
      .
      .
      .
      interrupting condition
  end;
Since Im updating 5 Axes this way, the plotting gets pretty slow. Matlab recommended initializing the axes ouside the loop, but then I dont know how to assign the Data1(view,axes_lim) for axes1 and Data2 for axes2…etc. Coueld someone help me on that?
Thanks in advance ! 🙂

Best Answer

Remove the "axes(handles.axes1)" lines and use:
scatter3(..., 'Parent', handles.axes1);
Or even better: Create the scatter plot once only and adjust the data afterwards:
scatterH1 = [];
while true
   ...
   if isempty(scatterH1)
      scatterH1 = scatter3(scatter data);
   else
      set(scatterH1, 'XData', ..., 'YData', ..., 'ZData', ...);
   end
   ...
end
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