7629bca34d
- converted most old-style signals into new-style for PySide compatibility (beware: API changes) - removed ObjectWorkaround, now just using QGraphicsWidget - performance enhancements, particularly in ROI.getArrayRegion - numerous bugfixes
27 lines
716 B
Python
27 lines
716 B
Python
# -*- coding: utf-8 -*-
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import sys, os
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## Add path to library (just for examples; you do not need this)
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', '..'))
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from PyQt4 import QtGui, QtCore
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import pyqtgraph as pg
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import numpy as np
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app = QtGui.QApplication([])
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mw = QtGui.QMainWindow()
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cw = pg.PlotWidget()
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mw.setCentralWidget(cw)
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mw.show()
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s1 = pg.ScatterPlotItem(size=10, pen=QtGui.QPen(QtCore.Qt.NoPen), brush=QtGui.QBrush(QtGui.QColor(255, 255, 255, 20)))
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pos = np.random.normal(size=(2,3000))
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spots = [{'pos': pos[:,i]} for i in range(3000)]
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s1.addPoints(spots)
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cw.addDataItem(s1)
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## Start Qt event loop unless running in interactive mode.
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if sys.flags.interactive != 1:
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app.exec_()
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