86 lines
2.2 KiB
Python
86 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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ViewBox is the general-purpose graphical container that allows the user to
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zoom / pan to inspect any area of a 2D coordinate system.
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This example demonstrates many of the features ViewBox provides.
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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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x = np.arange(1000, dtype=float)
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y = np.random.normal(size=1000)
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y += 5 * np.sin(x/100)
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win = pg.GraphicsLayoutWidget(show=True)
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win.setWindowTitle('pyqtgraph example: ____')
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win.resize(1000, 800)
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win.ci.setBorder((50, 50, 100))
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sub1 = win.addLayout()
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sub1.addLabel("<b>Standard mouse interaction:</b><br>left-drag to pan, right-drag to zoom.")
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sub1.nextRow()
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v1 = sub1.addViewBox()
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l1 = pg.PlotDataItem(y)
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v1.addItem(l1)
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sub2 = win.addLayout()
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sub2.addLabel("<b>One-button mouse interaction:</b><br>left-drag zoom to box, wheel to zoom out.")
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sub2.nextRow()
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v2 = sub2.addViewBox()
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v2.setMouseMode(v2.RectMode)
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l2 = pg.PlotDataItem(y)
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v2.addItem(l2)
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win.nextRow()
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sub3 = win.addLayout()
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sub3.addLabel("<b>Locked aspect ratio when zooming.</b>")
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sub3.nextRow()
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v3 = sub3.addViewBox()
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v3.setAspectLocked(1.0)
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l3 = pg.PlotDataItem(y)
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v3.addItem(l3)
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sub4 = win.addLayout()
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sub4.addLabel("<b>View limits:</b><br>prevent panning or zooming past limits.")
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sub4.nextRow()
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v4 = sub4.addViewBox()
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v4.setLimits(xMin=-100, xMax=1100,
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minXRange=20, maxXRange=500,
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yMin=-10, yMax=10,
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minYRange=1, maxYRange=10)
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l4 = pg.PlotDataItem(y)
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v4.addItem(l4)
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win.nextRow()
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sub5 = win.addLayout()
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sub5.addLabel("<b>Linked axes:</b> Data in this plot is always X-aligned to<br>the plot above.")
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sub5.nextRow()
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v5 = sub5.addViewBox()
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v5.setXLink(v3)
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l5 = pg.PlotDataItem(y)
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v5.addItem(l5)
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sub6 = win.addLayout()
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sub6.addLabel("<b>Disable mouse:</b> Per-axis control over mouse input.<br>"
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"<b>Auto-scale-visible:</b> Automatically fit *visible* data within view<br>"
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"(try panning left-right).")
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sub6.nextRow()
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v6 = sub6.addViewBox()
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v6.setMouseEnabled(x=True, y=False)
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v6.enableAutoRange(x=False, y=True)
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v6.setXRange(300, 450)
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v6.setAutoVisible(x=False, y=True)
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l6 = pg.PlotDataItem(y)
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v6.addItem(l6)
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if __name__ == '__main__':
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pg.exec()
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