73 lines
1.9 KiB
Python
73 lines
1.9 KiB
Python
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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## Add path to library (just for examples; you do not need this)
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import sys, os
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', '..'))
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from PyQt4 import QtGui, QtCore
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import numpy as np
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import pyqtgraph as pg
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#QtGui.QApplication.setGraphicsSystem('raster')
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app = QtGui.QApplication([])
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#mw = QtGui.QMainWindow()
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#mw.resize(800,800)
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win = pg.GraphicsWindow(title="Basic plotting examples")
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win.resize(800,600)
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p1 = win.addPlot(title="Basic array plotting", y=np.random.normal(size=100))
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p2 = win.addPlot(title="Multiple curves")
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p2.plot(np.random.normal(size=100), pen=(255,0,0))
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p2.plot(np.random.normal(size=100)+5, pen=(0,255,0))
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p2.plot(np.random.normal(size=100)+10, pen=(0,0,255))
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p3 = win.addPlot(title="Drawing with points")
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p3.plot(np.random.normal(size=100), pen=(200,200,200), symbolBrush=(255,0,0), symbolPen='w')
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win.nextRow()
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p4 = win.addPlot(title="Parametric")
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x = np.cos(np.linspace(0, 2*np.pi, 1000))
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y = np.sin(np.linspace(0, 4*np.pi, 1000))
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p4.plot(x, y)
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p5 = win.addPlot(title="Scatter plot with labels")
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x = np.random.normal(size=1000) * 1e-5
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y = x*1000 + 0.005 * np.random.normal(size=1000)
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p5.plot(x, y, pen=None, symbol='t', symbolPen=None, symbolSize=10, symbolBrush=(100, 100, 255, 50))
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p5.setLabel('left', "Y Axis", units='A')
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p5.setLabel('bottom', "Y Axis", units='s')
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p6 = win.addPlot(title="Updating plot")
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curve = p6.plot(pen='y')
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data = np.random.normal(size=(10,1000))
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ptr = 0
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def update():
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global curve, data, ptr, p6
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curve.setData(data[ptr%10])
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if ptr == 0:
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p6.enableAutoRange('xy', False)
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ptr += 1
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timer = QtCore.QTimer()
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timer.timeout.connect(update)
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timer.start(50)
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win.nextRow()
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p7 = win.addPlot(title="Filled plot")
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y = np.sin(np.linspace(0, 10, 1000)) + np.random.normal(size=1000, scale=0.1)
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p7.plot(y, fillLevel=-0.3, brush=(50,50,200,100))
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## Start Qt event loop unless running in interactive mode.
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if sys.flags.interactive != 1:
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app.exec_()
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