pyqtgraph/examples/PlotAutoRange.py

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# -*- coding: utf-8 -*-
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"""
This example demonstrates the different auto-ranging capabilities of ViewBoxes
"""
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import initExample ## Add path to library (just for examples; you do not need this)
from pyqtgraph.Qt import QtGui, QtCore
import numpy as np
import pyqtgraph as pg
#QtGui.QApplication.setGraphicsSystem('raster')
app = QtGui.QApplication([])
#mw = QtGui.QMainWindow()
#mw.resize(800,800)
win = pg.GraphicsWindow(title="Plot auto-range examples")
win.resize(800,600)
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win.setWindowTitle('pyqtgraph example: PlotAutoRange')
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d = np.random.normal(size=100)
d[50:54] += 10
p1 = win.addPlot(title="95th percentile range", y=d)
p1.enableAutoRange('y', 0.95)
p2 = win.addPlot(title="Auto Pan Only")
p2.setAutoPan(y=True)
curve = p2.plot()
def update():
t = pg.time()
data = np.ones(100) * np.sin(t)
data[50:60] += np.sin(t)
global curve
curve.setData(data)
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_()
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