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#!/usr/bin/env python
# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2016-2019 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
"""
Example to show the use of :class:`~silx.gui.plot.ScatterView.ScatterView` widget.
"""
from __future__ import division
__license__ = "MIT"
import logging
from silx.gui.plot.ScatterView import ScatterView
from silx.gui import qt
import numpy
import scipy.signal
logging.basicConfig()
logger = logging.getLogger(__name__)
def createData():
nbPoints = 200
nbX = int(numpy.sqrt(nbPoints))
nbY = nbPoints // nbX + 1
# Motor position
yy = numpy.atleast_2d(numpy.ones(nbY)).T
xx = numpy.atleast_2d(numpy.ones(nbX))
positionX = numpy.linspace(10, 50, nbX) * yy
positionX = positionX.reshape(nbX * nbY)
positionX = positionX + numpy.random.rand(len(positionX)) - 0.5
positionY = numpy.atleast_2d(numpy.linspace(20, 60, nbY)).T * xx
positionY = positionY.reshape(nbX * nbY)
positionY = positionY + numpy.random.rand(len(positionY)) - 0.5
# Diodes position
lut = scipy.signal.gaussian(max(nbX, nbY), std=8) * 10
yy, xx = numpy.ogrid[:nbY, :nbX]
signal = lut[yy] * lut[xx]
diode1 = numpy.random.poisson(signal * 10)
diode1 = diode1.reshape(nbX * nbY)
return positionX, positionY, diode1
def main(argv=None):
"""Display an image from a file in an :class:`ImageView` widget.
:param argv: list of command line arguments or None (the default)
to use sys.argv.
:type argv: list of str
:return: Exit status code
:rtype: int
:raises IOError: if no image can be loaded from the file
"""
import argparse
import os.path
global app # QApplication must be global to avoid seg fault on quit
app = qt.QApplication([])
sys.excepthook = qt.exceptionHandler
mainWindow = ScatterView()
mainWindow.setAttribute(qt.Qt.WA_DeleteOnClose)
xx, yy, value = createData()
mainWindow.setData(x=xx, y=yy, value=value)
mainWindow.show()
mainWindow.setFocus(qt.Qt.OtherFocusReason)
return app.exec()
if __name__ == "__main__":
import sys
sys.exit(main(argv=sys.argv[1:]))
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