2014-02-09 14:42:04 +00:00
|
|
|
# -*- coding: utf-8 -*-
|
|
|
|
|
"""
|
|
|
|
|
Simple example using BarGraphItem
|
|
|
|
|
"""
|
|
|
|
|
import initExample ## Add path to library (just for examples; you do not need this)
|
|
|
|
|
|
|
|
|
|
import pyqtgraph as pg
|
|
|
|
|
from pyqtgraph.Qt import QtCore, QtGui
|
|
|
|
|
import numpy as np
|
|
|
|
|
|
|
|
|
|
win = pg.plot()
|
|
|
|
|
win.setWindowTitle('pyqtgraph example: BarGraphItem')
|
|
|
|
|
|
|
|
|
|
x = np.arange(10)
|
|
|
|
|
y1 = np.sin(x)
|
|
|
|
|
y2 = 1.1 * np.sin(x+1)
|
|
|
|
|
y3 = 1.2 * np.sin(x+2)
|
|
|
|
|
|
|
|
|
|
bg1 = pg.BarGraphItem(x=x, height=y1, width=0.3, brush='r')
|
|
|
|
|
bg2 = pg.BarGraphItem(x=x+0.33, height=y2, width=0.3, brush='g')
|
|
|
|
|
bg3 = pg.BarGraphItem(x=x+0.66, height=y3, width=0.3, brush='b')
|
|
|
|
|
|
|
|
|
|
win.addItem(bg1)
|
|
|
|
|
win.addItem(bg2)
|
|
|
|
|
win.addItem(bg3)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Final example shows how to handle mouse clicks:
|
|
|
|
|
class BarGraph(pg.BarGraphItem):
|
|
|
|
|
def mouseClickEvent(self, event):
|
2014-02-09 15:38:29 +00:00
|
|
|
print("clicked")
|
2014-02-09 14:42:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
bg = BarGraph(x=x, y=y1*0.3+2, height=0.4+y1*0.2, width=0.8)
|
|
|
|
|
win.addItem(bg)
|
|
|
|
|
|
|
|
|
|
## 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_()
|
