38 lines
938 B
Python
38 lines
938 B
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
Shows use of PlotWidget to display panning data
|
|
|
|
"""
|
|
import initExample ## Add path to library (just for examples; you do not need this)
|
|
|
|
import pyqtgraph as pg
|
|
from pyqtgraph.Qt import QtCore, QtGui
|
|
import numpy as np
|
|
|
|
win = pg.GraphicsWindow()
|
|
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)
|
|
|
|
## Start Qt event loop unless running in interactive mode or using pyside.
|
|
if __name__ == '__main__':
|
|
import sys
|
|
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
|
|
QtGui.QApplication.instance().exec_()
|