pyqtgraph/examples/GradientEditor.py

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# -*- coding: utf-8 -*-
## Add path to library (just for examples; you do not need this)
import sys, os
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', '..'))
import numpy as np
from PyQt4 import QtGui, QtCore
import pyqtgraph as pg
app = QtGui.QApplication([])
mw = pg.GraphicsView()
mw.resize(800,800)
mw.show()
#ts = pg.TickSliderItem()
#mw.setCentralItem(ts)
#ts.addTick(0.5, 'r')
#ts.addTick(0.9, 'b')
ge = pg.GradientEditorItem()
mw.setCentralItem(ge)
## Start Qt event loop unless running in interactive mode.
if sys.flags.interactive != 1:
app.exec_()