39 lines
895 B
Python
39 lines
895 B
Python
# -*- coding: utf-8 -*-
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"""
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Simple example using BarGraphItem
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"""
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import initExample ## Add path to library (just for examples; you do not need this)
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import pyqtgraph as pg
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from pyqtgraph.Qt import QtCore, QtGui
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import numpy as np
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win = pg.plot()
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win.setWindowTitle('pyqtgraph example: BarGraphItem')
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x = np.arange(10)
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y1 = np.sin(x)
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y2 = 1.1 * np.sin(x+1)
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y3 = 1.2 * np.sin(x+2)
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bg1 = pg.BarGraphItem(x=x, height=y1, width=0.3, brush='r')
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bg2 = pg.BarGraphItem(x=x+0.33, height=y2, width=0.3, brush='g')
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bg3 = pg.BarGraphItem(x=x+0.66, height=y3, width=0.3, brush='b')
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win.addItem(bg1)
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win.addItem(bg2)
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win.addItem(bg3)
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# Final example shows how to handle mouse clicks:
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class BarGraph(pg.BarGraphItem):
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def mouseClickEvent(self, event):
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print("clicked")
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bg = BarGraph(x=x, y=y1*0.3+2, height=0.4+y1*0.2, width=0.8)
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win.addItem(bg)
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if __name__ == '__main__':
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pg.exec()
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