# -*- coding: utf-8 -*- import initExample ## Add path to library (just for examples; you do not need this) import pyqtgraph as pg from pyqtgraph.Qt import QtCore, QtGui plt = pg.plot() l = pg.LegendItem((100,60), (60,10)) # args are (size, position) l.setParentItem(plt.graphicsItem()) # Note we do NOT call plt.addItem in this case c1 = plt.plot([1,3,2,4], pen='r') c2 = plt.plot([2,1,4,3], pen='g') l.addItem(c1, 'red plot') l.addItem(c2, 'green plot') ## Start Qt event loop unless running in interactive mode or using pyside. import sys if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'): QtGui.QApplication.instance().exec_()