pyqtgraph/examples/MultiPlotWidget.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
## Add path to library (just for examples; you do not need this)
import initExample
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import numpy as np
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from numpy import linspace
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from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
from pyqtgraph import MultiPlotWidget
try:
from pyqtgraph.metaarray import *
except:
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print("MultiPlot is only used with MetaArray for now (and you do not have the metaarray package)")
exit()
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app = QtGui.QApplication([])
mw = QtGui.QMainWindow()
mw.resize(800,800)
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pw = MultiPlotWidget()
mw.setCentralWidget(pw)
mw.show()
data = np.random.normal(size=(3, 1000)) * np.array([[0.1], [1e-5], [1]])
ma = MetaArray(data, info=[
{'name': 'Signal', 'cols': [
{'name': 'Col1', 'units': 'V'},
{'name': 'Col2', 'units': 'A'},
{'name': 'Col3'},
]},
{'name': 'Time', 'values': linspace(0., 1., 1000), 'units': 's'}
])
pw.plot(ma, pen='y')
## Start Qt event loop unless running in interactive mode.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()