pyqtgraph/examples/PlotAutoRange.py
KIU Shueng Chuan 61616ffad9 remove calls to setGraphicsSystem
in fact all are no-ops
2021-02-22 19:17:53 +08:00

50 lines
1.2 KiB
Python

# -*- coding: utf-8 -*-
"""
This example demonstrates the different auto-ranging capabilities of ViewBoxes
"""
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
app = pg.mkQApp("Plot Auto Range Example")
#mw = QtGui.QMainWindow()
#mw.resize(800,800)
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()
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_()