nbsp;<span class=graph>set</span>(h.plot1.handler,<span class=quotes>'XData'</span>,h.plot1.time,<span class=quotes>'YData'</span>,h.plot1.topps,<span class=quotes>'Visible'</span>,<span class=quotes>'on'</span>);<br>
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=comment>%&nbsp;erase&nbsp;old&nbsp;ellipse,&nbsp;compute&nbsp;and&nbsp;plot&nbsp;new&nbsp;one</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=graph>set</span>(h.ellipse.center,<span class=quotes