45 lines
894 B
Python
45 lines
894 B
Python
"""
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HistogramLUTWidget test:
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Tests the creation of a HistogramLUTWidget.
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"""
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import pyqtgraph as pg
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from pyqtgraph.Qt import QtGui
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import numpy as np
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def testHistogramLUTWidget():
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pg.mkQApp()
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win = QtGui.QMainWindow()
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win.show()
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cw = QtGui.QWidget()
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win.setCentralWidget(cw)
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l = QtGui.QGridLayout()
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cw.setLayout(l)
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l.setSpacing(0)
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v = pg.GraphicsView()
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vb = pg.ViewBox()
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vb.setAspectLocked()
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v.setCentralItem(vb)
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l.addWidget(v, 0, 0, 3, 1)
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w = pg.HistogramLUTWidget(background='w')
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l.addWidget(w, 0, 1)
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data = pg.gaussianFilter(np.random.normal(size=(256, 256, 3)), (20, 20, 0))
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for i in range(32):
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for j in range(32):
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data[i*8, j*8] += .1
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img = pg.ImageItem(data)
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vb.addItem(img)
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vb.autoRange()
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w.setImageItem(img)
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QtGui.QApplication.processEvents()
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win.close()
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