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"""
Shows use of PlotWidget to display panning data
"""
import numpy as np
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore
win = pg.GraphicsLayoutWidget(show=True)
win.setWindowTitle('pyqtgraph example: PanningPlot')
plt = win.addPlot()
#plt.setAutoVisibleOnly(y=True)
curve = plt.plot()
data = []
count = 0
def update():
global data, curve, count
data.append(np.random.normal(size=10) + np.sin(count * 0.1) * 5)
if len(data) > 100:
data.pop(0)
curve.setData(np.hstack(data))
count += 1
timer = QtCore.QTimer()
timer.timeout.connect(update)
timer.start(50)
if __name__ == '__main__':
pg.exec()
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