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-# coding: utf-8
-# /*##########################################################################
-#
-# Copyright (c) 2018 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.
-#
-# ###########################################################################*/
-"""Basic tests for ScatterView"""
-
-__authors__ = ["T. Vincent"]
-__license__ = "MIT"
-__date__ = "06/03/2018"
-
-
-import unittest
-
-import numpy
-
-from silx.gui.plot.items import Axis, Scatter
-from silx.gui.plot import ScatterView
-from silx.gui.plot.test.utils import PlotWidgetTestCase
-
-
-class TestScatterView(PlotWidgetTestCase):
- """Test of ScatterView widget"""
-
- def _createPlot(self):
- return ScatterView()
-
- def test(self):
- """Simple tests"""
- x = numpy.arange(100)
- y = numpy.arange(100)
- value = numpy.arange(100)
- self.plot.setData(x, y, value)
- self.qapp.processEvents()
-
- data = self.plot.getData()
- self.assertEqual(len(data), 5)
- self.assertTrue(numpy.all(numpy.equal(x, data[0])))
- self.assertTrue(numpy.all(numpy.equal(y, data[1])))
- self.assertTrue(numpy.all(numpy.equal(value, data[2])))
- self.assertIsNone(data[3]) # xerror
- self.assertIsNone(data[4]) # yerror
-
- # Test access to scatter item
- self.assertIsInstance(self.plot.getScatterItem(), Scatter)
-
- # Test toolbar actions
-
- action = self.plot.getScatterToolBar().getXAxisLogarithmicAction()
- action.trigger()
- self.qapp.processEvents()
-
- maskAction = self.plot.getScatterToolBar().actions()[-1]
- maskAction.trigger()
- self.qapp.processEvents()
-
- # Test proxy API
-
- self.plot.resetZoom()
- self.qapp.processEvents()
-
- scale = self.plot.getXAxis().getScale()
- self.assertEqual(scale, Axis.LOGARITHMIC)
-
- scale = self.plot.getYAxis().getScale()
- self.assertEqual(scale, Axis.LINEAR)
-
- title = 'Test ScatterView'
- self.plot.setGraphTitle(title)
- self.assertEqual(self.plot.getGraphTitle(), title)
-
- self.qapp.processEvents()
-
- # Reset scatter data
-
- self.plot.setData(None, None, None)
- self.qapp.processEvents()
-
- data = self.plot.getData()
- self.assertEqual(len(data), 5)
- self.assertEqual(len(data[0]), 0) # x
- self.assertEqual(len(data[1]), 0) # y
- self.assertEqual(len(data[2]), 0) # value
- self.assertIsNone(data[3]) # xerror
- self.assertIsNone(data[4]) # yerror
-
- def testAlpha(self):
- """Test alpha transparency in setData"""
- _pts = 100
- _levels = 100
- _fwhm = 50
- x = numpy.random.rand(_pts)*_levels
- y = numpy.random.rand(_pts)*_levels
- value = numpy.random.rand(_pts)*_levels
- x0 = x[int(_pts/2)]
- y0 = x[int(_pts/2)]
- #2D Gaussian kernel
- alpha = numpy.exp(-4*numpy.log(2) * ((x-x0)**2 + (y-y0)**2) / _fwhm**2)
-
- self.plot.setData(x, y, value, alpha=alpha)
- self.qapp.processEvents()
-
- alphaData = self.plot.getScatterItem().getAlphaData()
- self.assertTrue(numpy.all(numpy.equal(alpha, alphaData)))
-
-
-def suite():
- test_suite = unittest.TestSuite()
- loadTests = unittest.defaultTestLoader.loadTestsFromTestCase
- test_suite.addTest(loadTests(TestScatterView))
- return test_suite
-
-
-if __name__ == '__main__':
- unittest.main(defaultTest='suite')