How to draw Output Data in realtime fo NIDAQ?

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Sergey Makovkin
Sergey Makovkin 2016-9-7
编辑： Sergey Makovkin 2016-9-7
I use a code:
Session = daq.createSession('ni');
addAnalogOutputChannel(Session, 'Dev2', 0:1, 'Voltage');
Session.IsContinuous = true;
Session.Rate = 10000;
data(:, 1) = [linspace(-1, 5, 5000) linspace(5, -1, 5000)]';
data(:, 2) = [linspace(-1, 10, 5000) linspace(10, -1, 5000)]';
lh2 = addlistener(Session, 'DataRequired', @(src, event) src.queueOutputData(data));
queueOutputData(Session, data);
subplot(2, 2, 1);
plot(data(:, 1))
subplot(2, 2, 2);
plot(data(:, 2))
startBackground(Session);
And I need to draw in realtime on plot point by point. How can I do it via listener?

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