def setUpClass(cls):
cls.sim_scattering_data = np.arange(0, 1.5,
0.002).reshape(30, 25).transpose()
cls.scattering_rotated = np.rot90(cls.sim_scattering_data, k=3)
cls.scattering_rotated = np.flipud(cls.scattering_rotated)
cls.e_axis = Axis('DeltaE', -10, 15, 1)
cls.q_axis = Axis('|Q|', 0.1, 3.1, 0.1)
cls.q_axis_degrees = Axis('Degrees', 3, 33, 1)
cls.test_ws = CreateSampleWorkspace(OutputWorkspace='test_ws',
NumBanks=1,
BankPixelWidth=5,
XMin=0.1,
XMax=3.1,
BinWidth=0.1,
XUnit='DeltaE')
for i in range(cls.test_ws.raw_ws.getNumberHistograms()):
cls.test_ws.raw_ws.setY(i, cls.sim_scattering_data[i])
AddSampleLog(workspace=cls.test_ws.raw_ws,
LogName='Ei',
LogText='3.',
LogType='Number',
StoreInADS=False)
cls.test_ws.e_mode = 'Direct'
cls.test_ws.e_fixed = 3
def test_plot_slice_error_handling(self):
slice_widget_presenter = SliceWidgetPresenter(self.slice_view)
slice_widget_presenter.register_master(self.main_presenter)
slice_widget_presenter.set_slice_plotter_presenter(
self.slice_plotter_presenter)
x = Axis('x', '0', '10', '1')
y = Axis('y', '2', '8', '3')
intensity_start = '7'
intensity_end = '8'
norm_to_one = False
smoothing = '10'
colourmap = 'colormap'
selected_workspace = 'workspace1'
self.slice_view.get_slice_x_axis.return_value = x.units
self.slice_view.get_slice_x_start.return_value = x.start
self.slice_view.get_slice_x_end.return_value = x.end
self.slice_view.get_slice_x_step.return_value = x.step
self.slice_view.get_slice_y_axis.return_value = y.units
self.slice_view.get_slice_y_start.return_value = y.start
self.slice_view.get_slice_y_end.return_value = y.end
self.slice_view.get_slice_y_step.return_value = y.step
self.slice_view.get_slice_intensity_start.return_value = intensity_start
self.slice_view.get_slice_intensity_end.return_value = intensity_end
self.slice_view.get_slice_is_norm_to_one.return_value = norm_to_one
self.slice_view.get_slice_smoothing.return_value = smoothing
self.slice_view.get_slice_colourmap.return_value = colourmap
plot_info = ("plot_data", "boundaries", "colormap", "norm")
self.slice_plotter_presenter.plot_slice = mock.Mock(
return_value=plot_info)
self.slice_plotter_presenter.validate_intensity = mock.Mock(
return_value=(7.0, 8.0))
# Test empty workspace, multiple workspaces
self.main_presenter.get_selected_workspaces.return_value = []
slice_widget_presenter.notify(Command.DisplaySlice)
assert self.slice_view.error_select_one_workspace.called
self.main_presenter.get_selected_workspaces.return_value = [
selected_workspace, selected_workspace
]
self.slice_view.error_select_one_workspace.reset_mock()
slice_widget_presenter.notify(Command.DisplaySlice)
assert self.slice_view.error_select_one_workspace.called
# Test invalid axes
self.main_presenter.get_selected_workspaces.return_value = [
selected_workspace
]
self.slice_view.get_slice_y_axis.return_value = x.units
slice_widget_presenter.notify(Command.DisplaySlice)
assert self.slice_view.error_invalid_plot_parameters.called
# Simulate matplotlib error
self.slice_plotter_presenter.plot_slice = mock.Mock(
side_effect=ValueError(
'minvalue must be less than or equal to maxvalue'))
self.slice_view.get_slice_y_axis.return_value = y.units
slice_widget_presenter.notify(Command.DisplaySlice)
assert self.slice_view.error_invalid_intensity_params.called
self.slice_plotter_presenter.plot_slice = mock.Mock(
side_effect=ValueError('something bad'))
self.assertRaises(ValueError, slice_widget_presenter.notify,
Command.DisplaySlice)
def create_cut_cache(self):
axis = Axis("units", "0", "100", "1")
integration_axis = Axis("units", 0.0, 100.0, 0)
return Cut(axis,
integration_axis,
intensity_start=3.0,
intensity_end=11.0,
norm_to_one=True,
width=None)
def test_plot_slice_successful(self):
slice_widget_presenter = SliceWidgetPresenter(self.slice_view)
slice_widget_presenter.register_master(self.main_presenter)
slice_widget_presenter.set_slice_plotter_presenter(
self.slice_plotter_presenter)
x = Axis('x', '0', '10', '1')
y = Axis('y', '2', '8', '3')
intensity_start = '7'
intensity_end = '8'
norm_to_one = False
colourmap = 'colormap'
selected_workspace = 'workspace1'
self.main_presenter.get_selected_workspaces.return_value = [
selected_workspace
]
self.slice_view.get_slice_x_axis.return_value = x.units
self.slice_view.get_slice_x_start.return_value = x.start
self.slice_view.get_slice_x_end.return_value = x.end
self.slice_view.get_slice_x_step.return_value = x.step
self.slice_view.get_slice_y_axis.return_value = y.units
self.slice_view.get_slice_y_start.return_value = y.start
self.slice_view.get_slice_y_end.return_value = y.end
self.slice_view.get_slice_y_step.return_value = y.step
self.slice_view.get_slice_intensity_start.return_value = intensity_start
self.slice_view.get_slice_intensity_end.return_value = intensity_end
self.slice_view.get_slice_is_norm_to_one.return_value = norm_to_one
self.slice_view.get_slice_colourmap.return_value = colourmap
plot_info = ("plot_data", "boundaries", "colormap", "norm")
self.slice_plotter_presenter.plot_slice = mock.Mock(
return_value=plot_info)
self.slice_plotter_presenter.validate_intensity = mock.Mock(
return_value=(7.0, 8.0))
slice_widget_presenter.notify(Command.DisplaySlice)
self.main_presenter.get_selected_workspaces.assert_called_once_with()
self.slice_view.get_slice_x_axis.assert_called_once_with()
self.slice_view.get_slice_x_start.assert_called_once_with()
self.slice_view.get_slice_x_end.assert_called_once_with()
self.slice_view.get_slice_x_step.assert_called_once_with()
self.slice_view.get_slice_y_axis.assert_called_once_with()
self.slice_view.get_slice_y_start.assert_called_once_with()
self.slice_view.get_slice_y_end.assert_called_once_with()
self.slice_view.get_slice_y_step.assert_called_once_with()
self.slice_view.get_slice_intensity_start.assert_called_once_with()
self.slice_view.get_slice_intensity_end.assert_called_once_with()
self.slice_view.get_slice_is_norm_to_one.assert_called_once_with()
self.slice_view.get_slice_colourmap.assert_called_once_with()
self.slice_plotter_presenter.validate_intensity.assert_called_once_with(
'7', '8')
self.slice_plotter_presenter.plot_slice.assert_called_with(
selected_workspace, Axis('x', 0, 10, 1), Axis('y', 2, 8, 3),
float(intensity_start), float(intensity_end), norm_to_one,
colourmap)
def _string_to_integration_axis(string):
"""Allows step to be omitted and set to default value"""
axis_str = string.split(',')
if len(axis_str) < 3:
raise ValueError(
'axis should be specified in format <name>,<start>,<end>')
valid_axis = Axis(axis_str[0], axis_str[1], axis_str[2], 0)
try:
valid_axis.step = axis_str[3]
except IndexError:
valid_axis.step = valid_axis.end - valid_axis.start
return valid_axis
def test_plot_interactive_cut(self, draw_interact_mock, plot_cut_impl_mock,
compute_cut_mock, get_ws_handle_mock):
mock_ws = mock.MagicMock()
mock_ws.name = 'workspace'
get_ws_handle_mock.return_value = mock_ws
cut_axis = Axis("units", "0", "100", "1")
integration_axis = Axis("units", 0.0, 100.0, 0)
self.cut_plotter_presenter.plot_interactive_cut(
'workspace', cut_axis, integration_axis, False)
self.assertEqual(1, compute_cut_mock.call_count)
self.assertEqual(1, plot_cut_impl_mock.call_count)
self.assertEqual(1, draw_interact_mock.call_count)
def PyExec(self):
workspace = self.getProperty('InputWorkspace').value
cut_dict = self.getProperty('CutAxis').value
cut_axis = Axis(cut_dict['units'].value, cut_dict['start'].value,
cut_dict['end'].value, cut_dict['step'].value)
int_dict = self.getProperty('IntegrationAxis').value
int_axis = Axis(int_dict['units'].value, int_dict['start'].value,
int_dict['end'].value, int_dict['step'].value)
e_mode = self.getProperty('EMode').value
PSD = self.getProperty('PSD').value
norm_to_one = self.getProperty('NormToOne').value
cut = compute_cut(workspace, cut_axis, int_axis, e_mode, PSD,
norm_to_one)
self.setProperty('OutputWorkspace', cut)
def _string_to_axis(string):
axis = string.split(',')
if len(axis) != 4:
raise ValueError(
'axis should be specified in format <name>,<start>,<end>,<step_size>'
)
return Axis(axis[0], axis[1], axis[2], axis[3])
def test_success_int(self):
axis = Axis('x', 0, 5, 1)
self.assertEqual(axis.start, 0.0)
assert (isinstance(axis.start, float))
self.assertEqual(axis.end, 5.0)
assert (isinstance(axis.end, float))
self.assertEqual(axis.step, 1.0)
assert (isinstance(axis.end, float))
def PyExec(self):
workspace = self.getProperty('InputWorkspace').value
x_dict = self.getProperty('XAxis').value
x_axis = Axis(x_dict['units'].value, x_dict['start'].value,
x_dict['end'].value, x_dict['step'].value)
y_dict = self.getProperty('YAxis').value
y_axis = Axis(y_dict['units'].value, y_dict['start'].value,
y_dict['end'].value, y_dict['step'].value)
norm_to_one = self.getProperty('NormToOne')
if self.getProperty('PSD').value:
slice = self._compute_slice_PSD(workspace, x_axis, y_axis,
norm_to_one)
else:
e_mode = self.getProperty('EMode').value
slice = self._compute_slice_nonPSD(workspace, x_axis, y_axis,
e_mode, norm_to_one)
self.setProperty('OutputWorkspace', slice)
def test_success_string(self):
axis = Axis('x', '0', '5', '1')
self.assertEqual(axis.start, 0.0)
assert (isinstance(axis.start, float))
self.assertEqual(axis.end, 5.0)
assert (isinstance(axis.end, float))
self.assertEqual(axis.step, 1.0)
assert (isinstance(axis.end, float))
def _parse_input(self):
"""Gets values entered by user. Validation is performed by the CutCache object."""
cut_axis = Axis(self._cut_view.get_cut_axis(),
self._cut_view.get_cut_axis_start(),
self._cut_view.get_cut_axis_end(),
self._cut_view.get_cut_axis_step())
integration_axis = Axis(self._cut_view.get_integration_axis(),
self._cut_view.get_integration_start(),
self._cut_view.get_integration_end(), 0.)
intensity_start = self._cut_view.get_intensity_start()
intensity_end = self._cut_view.get_intensity_end()
norm_to_one = bool(self._cut_view.get_intensity_is_norm_to_one())
width = self._cut_view.get_integration_width()
return Cut(cut_axis, integration_axis, intensity_start, intensity_end,
norm_to_one, width)
def get_cut_parameters(self, pos1, pos2):
start = pos1[not self.horizontal]
end = pos2[not self.horizontal]
units = self._canvas.figure.gca().get_xaxis().units if self.horizontal else \
self._canvas.figure.gca().get_yaxis().units
step = get_limits(get_workspace_handle(self._ws_title), units)[2]
ax = Axis(units, start, end, step)
integration_start = pos1[self.horizontal]
integration_end = pos2[self.horizontal]
return ax, integration_start, integration_end
def test_powder_line(self, ws_handle_mock):
from mslice.models.axis import Axis
ws_handle_mock.return_value.e_fixed = 20
x, y = compute_powder_line('ws_name', Axis('|Q|', 0.1, 9.1, 0.1),
'Copper')
self.assertEqual(len(x), len(y))
self.assertAlmostEqual(x[0], 3.010539, 6)
self.assertAlmostEqual(x[10], 5.764743, 6)
self.assertTrue(np.isnan(x[29]))
self.assertEqual(y[0], 1)
self.assertEqual(y[1], -1)
def plot_cut(self, x1, x2, y1, y2, store=False):
if x2 > x1 and y2 > y1:
ax, integration_start, integration_end = self.get_cut_parameters(
(x1, y1), (x2, y2))
units = self._canvas.figure.gca().get_yaxis().units if self.horizontal else \
self._canvas.figure.gca().get_xaxis().units
integration_axis = Axis(units, integration_start, integration_end,
0)
self._cut_plotter_presenter.plot_interactive_cut(
str(self._ws_title), ax, integration_axis, store)
self._cut_plotter_presenter.store_icut(self._ws_title, self)
def test_plot_slice_success(self, compute_slice_mock, sample_temp_mock,
get_workspace_handle_mock, create_slice_mock,
plot_cached_slice_mock):
workspace_mock = mock.MagicMock()
name = mock.PropertyMock(return_value='workspace')
type(workspace_mock).name = name
slice_mock = mock.MagicMock()
slice_name = mock.PropertyMock(return_value='__workspace')
type(slice_mock).name = slice_name
get_workspace_handle_mock.return_value = workspace_mock
sample_temp_mock.return_value = 5
compute_slice_mock.return_value = slice_mock
x_axis = Axis('x', 0, 1, 0.1)
y_axis = Axis('y', 0, 1, 0.1)
slice_presenter = SlicePlotterPresenter()
slice_presenter.plot_slice('workspace', x_axis, y_axis, 7, 8, False,
DEFAULT_CMAP)
self.assertTrue('workspace' in slice_presenter._slice_cache)
create_slice_mock.assert_called_once()
plot_cached_slice_mock.assert_called_once()
def test_powder_line_degrees(self, ws_handle_mock):
from mslice.models.axis import Axis
ws_handle_mock.return_value.e_fixed = 20
x, y = compute_powder_line('ws_name', Axis('Degrees', 3, 93, 1),
'Copper')
self.assertEqual(len(x), len(y))
self.assertAlmostEqual(x[0], 57.9614, 4)
self.assertAlmostEqual(x[4], 68.0383, 4)
self.assertTrue(np.isnan(x[5]))
self.assertEqual(y[0], 1)
self.assertEqual(y[1], -1)
def _process_axis(axis,
fallback_index,
input_workspace,
string_function=_string_to_axis):
available_axes = get_available_axes(input_workspace)
if axis is None:
axis = available_axes[fallback_index]
# check to see if axis is just a name e.g 'DeltaE' or a full binning spec e.g. 'DeltaE,0,1,100'
if ',' in axis:
axis = string_function(axis)
elif axis in available_axes:
range = get_axis_range(input_workspace, axis)
range = list(map(float, range))
axis = Axis(units=axis, start=range[0], end=range[1], step=range[2])
else:
raise RuntimeError(
"Axis '%s' not recognised. Workspace has these axes: %s " %
(axis, ', '.join(available_axes)))
return axis
def test_invalid_string_step(self):
with self.assertRaises(ValueError):
Axis('x', '0', '1', 'aa')
def test_invalid_start_greater_than_end(self):
with self.assertRaises(ValueError):
Axis('x', '1', '0', '.1')
def _y_axis(self):
return Axis(self._slice_view.get_slice_y_axis(),
self._slice_view.get_slice_y_start(),
self._slice_view.get_slice_y_end(),
self._slice_view.get_slice_y_step())
def get_axis_from_dimension(workspace, ws_name, id):
dim = workspace.raw_ws.getDimension(id).getName()
min, max, step = workspace.limits[dim]
return Axis(dim, min, max, step)
def test_invalid_string_end(self):
with self.assertRaises(ValueError):
Axis('x', '0', 'aa', '.1')