38 lines
938 B
Python
38 lines
938 B
Python
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# -*- coding: utf-8 -*-
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"""
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Shows use of PlotWidget to display panning data
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"""
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import initExample ## Add path to library (just for examples; you do not need this)
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import pyqtgraph as pg
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from pyqtgraph.Qt import QtCore, QtGui
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import numpy as np
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win = pg.GraphicsWindow()
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win.setWindowTitle('pyqtgraph example: PanningPlot')
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plt = win.addPlot()
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#plt.setAutoVisibleOnly(y=True)
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curve = plt.plot()
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data = []
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count = 0
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def update():
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global data, curve, count
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data.append(np.random.normal(size=10) + np.sin(count * 0.1) * 5)
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if len(data) > 100:
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data.pop(0)
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curve.setData(np.hstack(data))
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count += 1
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timer = QtCore.QTimer()
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timer.timeout.connect(update)
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timer.start(50)
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## Start Qt event loop unless running in interactive mode or using pyside.
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if __name__ == '__main__':
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import sys
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if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
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QtGui.QApplication.instance().exec_()
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