class TestScalarFieldView(TestCaseQt, ParametricTestCase):
"""Tests of ScalarFieldView widget."""
def setUp(self):
super(TestScalarFieldView, self).setUp()
self.widget = ScalarFieldView()
self.widget.show()
# Commented as it slows down the tests
# self.qWaitForWindowExposed(self.widget)
def tearDown(self):
self.qapp.processEvents()
self.widget.setAttribute(qt.Qt.WA_DeleteOnClose)
self.widget.close()
del self.widget
super(TestScalarFieldView, self).tearDown()
@staticmethod
def _buildData(size):
"""Make a 3D dataset"""
coords = numpy.linspace(-10, 10, size)
z = coords.reshape(-1, 1, 1)
y = coords.reshape(1, -1, 1)
x = coords.reshape(1, 1, -1)
return numpy.sin(x * y * z) / (x * y * z)
def testSimple(self):
"""Set the data and an isosurface"""
data = self._buildData(size=32)
self.widget.setData(data)
self.widget.addIsosurface(0.5, (1., 0., 0., 0.5))
self.widget.addIsosurface(0.7, qt.QColor('green'))
self.qapp.processEvents()
def testNotFinite(self):
"""Test with NaN and inf in data set"""
# Some NaNs and inf
data = self._buildData(size=32)
data[8, :, :] = numpy.nan
data[16, :, :] = numpy.inf
data[24, :, :] = - numpy.inf
self.widget.addIsosurface(0.5, 'red')
self.widget.setData(data, copy=True)
self.qapp.processEvents()
self.widget.setData(None)
# All NaNs or inf
data = numpy.empty((4, 4, 4), dtype=numpy.float32)
for value in (numpy.nan, numpy.inf):
with self.subTest(value=str(value)):
data[:] = value
self.widget.setData(data, copy=True)
self.qapp.processEvents()
class TestScalarFieldView(TestCaseQt, ParametricTestCase):
"""Tests of ScalarFieldView widget."""
def setUp(self):
super(TestScalarFieldView, self).setUp()
self.widget = ScalarFieldView()
self.widget.show()
# Commented as it slows down the tests
# self.qWaitForWindowExposed(self.widget)
def tearDown(self):
self.qapp.processEvents()
self.widget.setAttribute(qt.Qt.WA_DeleteOnClose)
self.widget.close()
del self.widget
super(TestScalarFieldView, self).tearDown()
@staticmethod
def _buildData(size):
"""Make a 3D dataset"""
coords = numpy.linspace(-10, 10, size)
z = coords.reshape(-1, 1, 1)
y = coords.reshape(1, -1, 1)
x = coords.reshape(1, 1, -1)
return numpy.sin(x * y * z) / (x * y * z)
def testSimple(self):
"""Set the data and an isosurface"""
data = self._buildData(size=32)
self.widget.setData(data)
self.widget.addIsosurface(0.5, (1., 0., 0., 0.5))
self.widget.addIsosurface(0.7, qt.QColor('green'))
self.qapp.processEvents()
def testNotFinite(self):
"""Test with NaN and inf in data set"""
# Some NaNs and inf
data = self._buildData(size=32)
data[8, :, :] = numpy.nan
data[16, :, :] = numpy.inf
data[24, :, :] = -numpy.inf
self.widget.addIsosurface(0.5, 'red')
self.widget.setData(data, copy=True)
self.qapp.processEvents()
self.widget.setData(None)
# All NaNs or inf
data = numpy.empty((4, 4, 4), dtype=numpy.float32)
for value in (numpy.nan, numpy.inf):
with self.subTest(value=str(value)):
data[:] = value
self.widget.setData(data, copy=True)
self.qapp.processEvents()
class TestScalarFieldView(TestCaseQt):
"""Tests StatsWidget combined with ScalarFieldView"""
def setUp(self):
super(TestScalarFieldView, self).setUp()
self.scalarFieldView = ScalarFieldView()
self.scalarFieldView.resize(300, 300)
self.scalarFieldView.show()
self.statsWidget = BasicStatsWidget()
self.statsWidget.setPlot(self.scalarFieldView)
# self.qWaitForWindowExposed(self.sceneWidget)
def tearDown(self):
Stats._getContext.cache_clear()
self.qapp.processEvents()
self.scalarFieldView.setAttribute(qt.Qt.WA_DeleteOnClose)
self.scalarFieldView.close()
del self.scalarFieldView
self.statsWidget.setAttribute(qt.Qt.WA_DeleteOnClose)
self.statsWidget.close()
del self.statsWidget
super(TestScalarFieldView, self).tearDown()
def _getTextFor(self, row, name):
"""Returns text in table at given row for column name
:param int row: Row number in the table
:param str name: Column id
:rtype: Union[str,None]
"""
statsTable = self.statsWidget._getStatsTable()
for column in range(statsTable.columnCount()):
headerItem = statsTable.horizontalHeaderItem(column)
if headerItem.data(qt.Qt.UserRole) == name:
tableItem = statsTable.item(row, column)
return tableItem.text()
return None
def test(self):
"""Test StatsWidget with ScalarFieldView"""
data = numpy.arange(64**3, dtype=numpy.float64).reshape(64, 64, 64)
self.scalarFieldView.setData(data)
statsTable = self.statsWidget._getStatsTable()
# Test selection only
self.statsWidget.setDisplayOnlyActiveItem(True)
self.assertEqual(statsTable.rowCount(), 1)
# Test all data
self.statsWidget.setDisplayOnlyActiveItem(False)
self.assertEqual(statsTable.rowCount(), 1)
for column in range(statsTable.columnCount()):
self.assertEqual(float(self._getTextFor(0, 'min')),
numpy.min(data))
self.assertEqual(float(self._getTextFor(0, 'max')),
numpy.max(data))
sum_ = numpy.sum(data)
comz = numpy.sum(
numpy.arange(data.shape[0]) *
numpy.sum(data, axis=(1, 2))) / sum_
comy = numpy.sum(
numpy.arange(data.shape[1]) *
numpy.sum(data, axis=(0, 2))) / sum_
comx = numpy.sum(
numpy.arange(data.shape[2]) *
numpy.sum(data, axis=(0, 1))) / sum_
self.assertEqual(self._getTextFor(0, 'COM'), str(
(comx, comy, comz)))
class TestScalarFieldView(TestCaseQt):
"""Tests StatsWidget combined with ScalarFieldView"""
def setUp(self):
super(TestScalarFieldView, self).setUp()
self.scalarFieldView = ScalarFieldView()
self.scalarFieldView.resize(300, 300)
self.scalarFieldView.show()
self.statsWidget = BasicStatsWidget()
self.statsWidget.setPlot(self.scalarFieldView)
# self.qWaitForWindowExposed(self.sceneWidget)
def tearDown(self):
self.qapp.processEvents()
self.scalarFieldView.setAttribute(qt.Qt.WA_DeleteOnClose)
self.scalarFieldView.close()
del self.scalarFieldView
self.statsWidget.setAttribute(qt.Qt.WA_DeleteOnClose)
self.statsWidget.close()
del self.statsWidget
super(TestScalarFieldView, self).tearDown()
def _getTextFor(self, row, name):
"""Returns text in table at given row for column name
:param int row: Row number in the table
:param str name: Column id
:rtype: Union[str,None]
"""
statsTable = self.statsWidget._getStatsTable()
for column in range(statsTable.columnCount()):
headerItem = statsTable.horizontalHeaderItem(column)
if headerItem.data(qt.Qt.UserRole) == name:
tableItem = statsTable.item(row, column)
return tableItem.text()
return None
def test(self):
"""Test StatsWidget with ScalarFieldView"""
data = numpy.arange(64**3, dtype=numpy.float64).reshape(64, 64, 64)
self.scalarFieldView.setData(data)
statsTable = self.statsWidget._getStatsTable()
# Test selection only
self.statsWidget.setDisplayOnlyActiveItem(True)
self.assertEqual(statsTable.rowCount(), 1)
# Test all data
self.statsWidget.setDisplayOnlyActiveItem(False)
self.assertEqual(statsTable.rowCount(), 1)
for column in range(statsTable.columnCount()):
self.assertEqual(float(self._getTextFor(0, 'min')), numpy.min(data))
self.assertEqual(float(self._getTextFor(0, 'max')), numpy.max(data))
sum_ = numpy.sum(data)
comz = numpy.sum(numpy.arange(data.shape[0]) * numpy.sum(data, axis=(1, 2))) / sum_
comy = numpy.sum(numpy.arange(data.shape[1]) * numpy.sum(data, axis=(0, 2))) / sum_
comx = numpy.sum(numpy.arange(data.shape[2]) * numpy.sum(data, axis=(0, 1))) / sum_
self.assertEqual(self._getTextFor(0, 'COM'), str((comx, comy, comz)))