309195ceea
* set environment variables before starting QApp * fix-422 * Better support of hidpi * Fix Typo in App-Name * Remove fontScaleFactor bits * Add documenation for hidpi displays * Fix pg not defined
51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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This example demonstrates the ability to link the axes of views together
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Views can be linked manually using the context menu, but only if they are given
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names.
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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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#QtGui.QApplication.setGraphicsSystem('raster')
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app = pg.mkQApp("Linked Views Example")
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#mw = QtGui.QMainWindow()
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#mw.resize(800,800)
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x = np.linspace(-50, 50, 1000)
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y = np.sin(x) / x
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win = pg.GraphicsLayoutWidget(show=True, title="pyqtgraph example: Linked Views")
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win.resize(800,600)
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win.addLabel("Linked Views", colspan=2)
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win.nextRow()
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p1 = win.addPlot(x=x, y=y, name="Plot1", title="Plot1")
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p2 = win.addPlot(x=x, y=y, name="Plot2", title="Plot2: Y linked with Plot1")
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p2.setLabel('bottom', "Label to test offset")
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p2.setYLink('Plot1') ## test linking by name
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## create plots 3 and 4 out of order
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p4 = win.addPlot(x=x, y=y, name="Plot4", title="Plot4: X -> Plot3 (deferred), Y -> Plot1", row=2, col=1)
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p4.setXLink('Plot3') ## Plot3 has not been created yet, but this should still work anyway.
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p4.setYLink(p1)
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p3 = win.addPlot(x=x, y=y, name="Plot3", title="Plot3: X linked with Plot1", row=2, col=0)
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p3.setXLink(p1)
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p3.setLabel('left', "Label to test offset")
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#QtGui.QApplication.processEvents()
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## Start Qt event loop unless running in interactive mode or using pyside.
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if __name__ == '__main__':
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import sys
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if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
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QtGui.QApplication.instance().exec_()
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