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"""
This example demonstrates the different auto-ranging capabilities of ViewBoxes
"""
import time
import numpy as np
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore
app = pg.mkQApp("Plot Auto Range Example")
win = pg.GraphicsLayoutWidget(show=True, title="Plot auto-range examples")
win.resize(800,600)
win.setWindowTitle('pyqtgraph example: PlotAutoRange')
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()
t0 = time.time()
def update():
t = time.time() - t0
data = np.ones(100) * np.sin(t)
data[50:60] += np.sin(t)
curve.setData(data)
timer = QtCore.QTimer()
timer.timeout.connect(update)
timer.start(50)
if __name__ == '__main__':
pg.exec()
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