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