Exemple #1
0
    def test_unit_conversion(self):
        import mantid.simpleapi as mantid
        eventWS = mantid.CloneWorkspace(self.base_event_ws)
        ws = mantid.Rebin(eventWS, 10000, PreserveEvents=False)
        tmp = mantidcompat.convert_Workspace2D_to_data_array(ws)
        target_tof = tmp.coords['tof']
        ws = mantid.ConvertUnits(InputWorkspace=ws,
                                 Target="Wavelength",
                                 EMode="Elastic")
        converted_mantid = mantidcompat.convert_Workspace2D_to_data_array(ws)

        da = mantidcompat.convert_EventWorkspace_to_data_array(
            eventWS, load_pulse_times=False)
        da.realign({'tof': target_tof})
        da = sc.histogram(da)
        d = sc.Dataset(da)
        converted = sc.neutron.convert(d, 'tof', 'wavelength')

        self.assertTrue(
            np.all(np.isclose(converted_mantid.values, converted[""].values)))
        self.assertTrue(
            np.all(
                np.isclose(
                    converted_mantid.coords['wavelength'].values,
                    converted.coords['wavelength'].values,
                )))
Exemple #2
0
    def test_Workspace2D_not_common_bins_masks(self):
        import mantid.simpleapi as mantid
        eventWS = mantid.CloneWorkspace(self.base_event_ws)
        ws = mantid.Rebin(eventWS, 10000, PreserveEvents=False)
        ws = mantid.ConvertUnits(ws,
                                 "Wavelength",
                                 EMode="Direct",
                                 EFixed=0.1231)

        # these X values will mask different number of bins
        masked_ws = self._mask_bins_and_spectra(ws, -214, -192, num_spectra=3)

        self.assertFalse(masked_ws.isCommonBins())

        ds = mantidcompat.convert_Workspace2D_to_data_array(masked_ws)

        # bin with 3 masks
        np.testing.assert_array_equal(ds.masks["bin"].values[0],
                                      [True, True, False, False, False])

        # bin with only 2
        np.testing.assert_array_equal(ds.masks["bin"].values[31],
                                      [True, True, True, False, False])

        np.testing.assert_array_equal(ds.masks["spectrum"].values[0:3],
                                      [True, True, True])
Exemple #3
0
    def test_unit_conversion(self):
        import mantid.simpleapi as mantid
        eventWS = mantid.CloneWorkspace(self.base_event_ws)
        ws = mantid.Rebin(eventWS, 10000, PreserveEvents=False)
        tmp = mantidcompat.convert_Workspace2D_to_dataarray(ws)
        target_tof = tmp.coords[sc.Dim.Tof]
        ws = mantid.ConvertUnits(InputWorkspace=ws,
                                 Target="Wavelength",
                                 EMode="Elastic")
        converted_mantid = mantidcompat.convert_Workspace2D_to_dataarray(ws)

        da = mantidcompat.convertEventWorkspace_to_dataarray(
            eventWS, False)
        da = sc.histogram(da, target_tof)
        d = sc.Dataset(da)
        converted = sc.neutron.convert(d, sc.Dim.Tof, sc.Dim.Wavelength)

        self.assertTrue(
            np.all(np.isclose(converted_mantid.values, converted[""].values)))
        self.assertTrue(
            np.all(
                np.isclose(
                    converted_mantid.coords[sc.Dim.Wavelength].values,
                    converted.coords[sc.Dim.Wavelength].values,
                )))