Start & stop opeartions using single push button

i need to plot values from 1:100 like plot(1:100) only when i press the push button .

like i will press push button & plot only first 50 values then i will stop using the same push button & again start for plotting remaining 50 values

thanks in advance

[Jan]

What have you tried so far and which problems occurred? How can we assist you to solve your problem?

Answer 1

[Ryan G]

You could set a flag when you hit start, for example

   isRunning = 1;
   setappdata(handles.myPushbutton,'isRunning',isRunning);

and also change the text of the pushbutton to stop

   set(handles.myPushbutton,'String','Stop');

Finally you could implement a timer object to easily implement the start/stop functionality of the plot.

So the final callback would be something like:

   isRunning = getappdata(hObject,'isRunning')
   if isRunning
     stop(myTimerObject);
     isRunning = 0;
     setappdata(hObject,'isRunning',isRunning);
   else
     %setup and start timer
     isRunning = 1;
     setappdata(hObject,'isRunning',isRunning);
   end

In fact you don't really need the isRunning variable as you can find that out directly from the timer object. I'm just to lazy to redo this post.

[shaz]

sorry ...i need a single push button performing both start & stop actions

start means plotting values & stop means stop plotting the values

Start(1st press)-----plot values-->stop(2nd press)---stop plotting values---->Start(3rd press)----continue plotting again from where it was left till data is available

[Ryan G]

What I described does that. You would have to define what goes in each section of the code to start/stop/create the timer.