2019-09-27 20:02:54 +00:00
|
|
|
"""
|
|
|
|
|
HistogramLUTWidget test:
|
|
|
|
|
|
|
|
|
|
Tests the creation of a HistogramLUTWidget.
|
|
|
|
|
"""
|
|
|
|
|
|
|
|
|
|
import pyqtgraph as pg
|
|
|
|
|
from pyqtgraph.Qt import QtGui
|
|
|
|
|
import numpy as np
|
|
|
|
|
|
|
|
|
|
def testHistogramLUTWidget():
|
|
|
|
|
pg.mkQApp()
|
|
|
|
|
|
|
|
|
|
win = QtGui.QMainWindow()
|
|
|
|
|
win.show()
|
|
|
|
|
|
|
|
|
|
cw = QtGui.QWidget()
|
|
|
|
|
win.setCentralWidget(cw)
|
|
|
|
|
|
|
|
|
|
l = QtGui.QGridLayout()
|
|
|
|
|
cw.setLayout(l)
|
|
|
|
|
l.setSpacing(0)
|
|
|
|
|
|
|
|
|
|
v = pg.GraphicsView()
|
|
|
|
|
vb = pg.ViewBox()
|
|
|
|
|
vb.setAspectLocked()
|
|
|
|
|
v.setCentralItem(vb)
|
|
|
|
|
l.addWidget(v, 0, 0, 3, 1)
|
|
|
|
|
|
|
|
|
|
w = pg.HistogramLUTWidget(background='w')
|
|
|
|
|
l.addWidget(w, 0, 1)
|
|
|
|
|
|
|
|
|
|
data = pg.gaussianFilter(np.random.normal(size=(256, 256, 3)), (20, 20, 0))
|
|
|
|
|
for i in range(32):
|
|
|
|
|
for j in range(32):
|
|
|
|
|
data[i*8, j*8] += .1
|
|
|
|
|
img = pg.ImageItem(data)
|
|
|
|
|
vb.addItem(img)
|
|
|
|
|
vb.autoRange()
|
|
|
|
|
|
|
|
|
|
w.setImageItem(img)
|
|
|
|
|
|
|
|
|
|
QtGui.QApplication.processEvents()
|
2021-05-28 14:39:00 +00:00
|
|
|
win.close()
|
