One of the callbacks for a uicontrol in my code executes a loop until
another button is pressed. This works fine if no axes modifications
(e.g., plots, fills) are in the loop.
But, if there are axes modifications, then they are NOT executed until
I use a keyboard interrupt. The present solution is to introduce a
pause(fraction_of_second). This doesn't seem very clean.
Is there any way to prevent the loop from repeating until the axes