50 lines
1.0 KiB
Python
50 lines
1.0 KiB
Python
# -*- coding: utf-8 -*-
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## Add path to library (just for examples; you do not need this)
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import sys, os
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sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..'))
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from pyqtgraph.GraphicsView import *
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from pyqtgraph.graphicsItems import *
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from numpy import random
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from PyQt4 import QtCore, QtGui
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from scipy.ndimage import *
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app = QtGui.QApplication([])
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## Create window with GraphicsView widget
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win = QtGui.QMainWindow()
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view = GraphicsView()
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win.setCentralWidget(view)
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win.show()
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## Allow mouse scale/pan
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view.enableMouse()
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## ..But lock the aspect ratio
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view.setAspectLocked(True)
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## Create image item
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img = ImageItem()
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view.scene().addItem(img)
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## Set initial view bounds
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view.setRange(QtCore.QRectF(0, 0, 200, 200))
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def updateData():
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global img
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## Create random image
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data = random.random((200, 200))
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## Display the data
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img.updateImage(data)
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# update image data every 20ms (or so)
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t = QtCore.QTimer()
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QtCore.QObject.connect(t, QtCore.SIGNAL('timeout()'), updateData)
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t.start(20)
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app.exec_()
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