42 lines
1.6 KiB
Python
42 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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This example demonstrates some of the plotting items available in pyqtgraph.
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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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from pyqtgraph.Qt import QtGui, QtCore
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import numpy as np
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import pyqtgraph as pg
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app = pg.mkQApp("InfiniteLine Example")
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win = pg.GraphicsLayoutWidget(show=True, title="Plotting items examples")
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win.resize(1000,600)
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# Enable antialiasing for prettier plots
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pg.setConfigOptions(antialias=True)
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# Create a plot with some random data
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p1 = win.addPlot(title="Plot Items example", y=np.random.normal(size=100, scale=10), pen=0.5)
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p1.setYRange(-40, 40)
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# Add three infinite lines with labels
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inf1 = pg.InfiniteLine(movable=True, angle=90, label='x={value:0.2f}',
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labelOpts={'position':0.1, 'color': (200,200,100), 'fill': (200,200,200,50), 'movable': True})
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inf2 = pg.InfiniteLine(movable=True, angle=0, pen=(0, 0, 200), bounds = [-20, 20], hoverPen=(0,200,0), label='y={value:0.2f}mm',
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labelOpts={'color': (200,0,0), 'movable': True, 'fill': (0, 0, 200, 100)})
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inf3 = pg.InfiniteLine(movable=True, angle=45, pen='g', label='diagonal',
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labelOpts={'rotateAxis': [1, 0], 'fill': (0, 200, 0, 100), 'movable': True})
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inf1.setPos([2,2])
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p1.addItem(inf1)
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p1.addItem(inf2)
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p1.addItem(inf3)
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# Add a linear region with a label
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lr = pg.LinearRegionItem(values=[70, 80])
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p1.addItem(lr)
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label = pg.InfLineLabel(lr.lines[1], "region 1", position=0.95, rotateAxis=(1,0), anchor=(1, 1))
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if __name__ == '__main__':
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pg.mkQApp().exec_()
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