本文整理汇总了Python中mantid.kernel.CompositeValidator类的典型用法代码示例。如果您正苦于以下问题：Python CompositeValidator类的具体用法？Python CompositeValidator怎么用？Python CompositeValidator使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了CompositeValidator类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: PyInit
def PyInit(self):
# State
self.declareProperty(PropertyManagerProperty('SANSState'),
doc='A property manager which fulfills the SANSState contract.')
# Input workspaces
workspace_validator = CompositeValidator()
workspace_validator.add(WorkspaceUnitValidator("Wavelength"))
self.declareProperty(MatrixWorkspaceProperty("TransmissionWorkspace", '',
optional=PropertyMode.Optional, direction=Direction.Input,
validator=workspace_validator),
doc='The calculated transmission workspace in wavelength units.')
self.declareProperty(MatrixWorkspaceProperty("NormalizeToMonitorWorkspace", '',
optional=PropertyMode.Mandatory, direction=Direction.Input,
validator=workspace_validator),
doc='The monitor normalization workspace in wavelength units.')
allowed_detector_types = StringListValidator([DetectorType.to_string(DetectorType.HAB),
DetectorType.to_string(DetectorType.LAB)])
self.declareProperty("Component", DetectorType.to_string(DetectorType.LAB),
validator=allowed_detector_types, direction=Direction.Input,
doc="The component of the instrument which is currently being investigated.")
# Output workspace
self.declareProperty(MatrixWorkspaceProperty("OutputWorkspaceWavelengthAdjustment", '',
direction=Direction.Output),
doc='A wavelength adjustment output workspace.')
self.declareProperty(MatrixWorkspaceProperty("OutputWorkspacePixelAdjustment", '',
direction=Direction.Output),
doc='A pixel adjustment output workspace.')示例2: PyInit
def PyInit(self):
"""Initialize the input and output properties of the algorithm."""
mandatoryInputWorkspaces = CompositeValidator()
mandatoryInputWorkspaces.add(StringArrayMandatoryValidator())
mandatoryInputWorkspaces.add(StringArrayLengthValidator(1, 4))
self.declareProperty(StringArrayProperty(Prop.INPUT_WS,
values=[],
validator=mandatoryInputWorkspaces),
doc='A set of polarized workspaces, in wavelength.')
self.declareProperty(WorkspaceGroupProperty(Prop.OUTPUT_WS,
defaultValue='',
direction=Direction.Output),
doc='A group of polarization efficiency corrected workspaces.')
self.declareProperty(Prop.SUBALG_LOGGING,
defaultValue=SubalgLogging.OFF,
validator=StringListValidator([SubalgLogging.OFF, SubalgLogging.ON]),
doc='Enable or disable child algorithm logging.')
self.declareProperty(Prop.CLEANUP,
defaultValue=common.WSCleanup.ON,
validator=StringListValidator([common.WSCleanup.ON, common.WSCleanup.OFF]),
doc='Enable or disable intermediate workspace cleanup.')
self.declareProperty(FileProperty(Prop.EFFICIENCY_FILE,
defaultValue='',
action=FileAction.Load),
doc='A file containing the polarization efficiency factors.')示例3: PyInit
def PyInit(self):
"""Initialize the input and output properties of the algorithm."""
mandatoryInputRuns = CompositeValidator()
mandatoryInputRuns.add(StringArrayMandatoryValidator())
lenValidator = StringArrayLengthValidator()
lenValidator.setLengthMin(1)
mandatoryInputRuns.add(lenValidator)
self.declareProperty(StringArrayProperty(Prop.RUNS,
values=[],
validator=mandatoryInputRuns),
doc='A list of run numbers or workspace names for the input runs. '
'Multiple runs will be summed before reduction.')
self.declareProperty(StringArrayProperty(Prop.FIRST_TRANS_RUNS,
values=[]),
doc='A list of run numbers or workspace names for the first transmission run. '
'Multiple runs will be summed before reduction.')
self.declareProperty(StringArrayProperty(Prop.SECOND_TRANS_RUNS,
values=[]),
doc='A list of run numbers or workspace names for the second transmission run. '
'Multiple runs will be summed before reduction.')
self._declareSliceAlgorithmProperties()
self._declareReductionAlgorithmProperties()
self.declareProperty(WorkspaceProperty(Prop.OUTPUT_WS, '',
optional=PropertyMode.Optional,
direction=Direction.Output),
doc='The output workspace, or workspace group if sliced.')
self.declareProperty(WorkspaceProperty(Prop.OUTPUT_WS_BINNED, '',
optional=PropertyMode.Optional,
direction=Direction.Output),
doc='The binned output workspace, or workspace group if sliced.')
self.declareProperty(WorkspaceProperty(Prop.OUTPUT_WS_LAM, '',
optional=PropertyMode.Optional,
direction=Direction.Output),
doc='The output workspace in wavelength, or workspace group if sliced.')示例4: test_creation_with_add_succeeds_correctly_in_algorithm
def test_creation_with_add_succeeds_correctly_in_algorithm(self):
"""
Tests that a composite validator created with the add
method validates correctly
"""
validation = CompositeValidator()
validation.add(FloatBoundedValidator(lower=5))
validation.add(FloatBoundedValidator(upper=10))
self._do_validation_test(validation)示例5: PyInit
def PyInit(self):
inputWorkspaceValidator = CompositeValidator()
inputWorkspaceValidator.add(InstrumentValidator())
inputWorkspaceValidator.add(WorkspaceUnitValidator('TOF'))
positiveFloat = FloatBoundedValidator(lower=0)
self.declareProperty(MatrixWorkspaceProperty(
name=common.PROP_INPUT_WS,
defaultValue='',
validator=inputWorkspaceValidator,
optional=PropertyMode.Mandatory,
direction=Direction.Input),
doc='A workspace to be integrated.')
self.declareProperty(WorkspaceProperty(name=common.PROP_OUTPUT_WS,
defaultValue='',
direction=Direction.Output),
doc='The integrated workspace.')
self.declareProperty(name=common.PROP_CLEANUP_MODE,
defaultValue=common.CLEANUP_ON,
validator=StringListValidator([
common.CLEANUP_ON,
common.CLEANUP_OFF]),
direction=Direction.Input,
doc='What to do with intermediate workspaces.')
self.declareProperty(name=common.PROP_SUBALG_LOGGING,
defaultValue=common.SUBALG_LOGGING_OFF,
validator=StringListValidator([
common.SUBALG_LOGGING_OFF,
common.SUBALG_LOGGING_ON]),
direction=Direction.Input,
doc='Enable or disable subalgorithms to ' +
'print in the logs.')
self.declareProperty(ITableWorkspaceProperty(
name=common.PROP_EPP_WS,
defaultValue='',
direction=Direction.Input,
optional=PropertyMode.Mandatory),
doc='Table workspace containing results from the FindEPP algorithm.')
self.declareProperty(name=common.PROP_DWF_CORRECTION,
defaultValue=common.DWF_ON,
validator=StringListValidator([
common.DWF_ON,
common.DWF_OFF]),
direction=Direction.Input,
doc='Enable or disable the correction for the Debye-Waller factor for ' + common.PROP_OUTPUT_WS + '.')
self.declareProperty(name=common.PROP_TEMPERATURE,
defaultValue=Property.EMPTY_DBL,
validator=positiveFloat,
direction=Direction.Input,
doc='Vanadium temperature in Kelvin for Debye-Waller correction, ' +
'overrides the default value from the sample logs.')
self.setPropertySettings(common.PROP_TEMPERATURE, EnabledWhenProperty(common.PROP_DWF_CORRECTION,
PropertyCriterion.IsDefault))示例6: PyInit
def PyInit(self):
"""Initialize the algorithm's input and output properties."""
inputWorkspaceValidator = CompositeValidator()
inputWorkspaceValidator.add(InstrumentValidator())
inputWorkspaceValidator.add(WorkspaceUnitValidator('TOF'))
scalingFactor = FloatBoundedValidator(lower=0, upper=1)
# Properties.
self.declareProperty(MatrixWorkspaceProperty(
name=common.PROP_INPUT_WS,
defaultValue='',
validator=inputWorkspaceValidator,
direction=Direction.Input),
doc='A workspace to which to apply the corrections.')
self.declareProperty(WorkspaceProperty(name=common.PROP_OUTPUT_WS,
defaultValue='',
direction=Direction.Output),
doc='The corrected workspace.')
self.declareProperty(name=common.PROP_CLEANUP_MODE,
defaultValue=common.CLEANUP_ON,
validator=StringListValidator([
common.CLEANUP_ON,
common.CLEANUP_OFF]),
direction=Direction.Input,
doc='What to do with intermediate workspaces.')
self.declareProperty(name=common.PROP_SUBALG_LOGGING,
defaultValue=common.SUBALG_LOGGING_OFF,
validator=StringListValidator([
common.SUBALG_LOGGING_OFF,
common.SUBALG_LOGGING_ON]),
direction=Direction.Input,
doc='Enable or disable subalgorithms to ' +
'print in the logs.')
self.declareProperty(MatrixWorkspaceProperty(
name=common.PROP_EC_WS,
defaultValue='',
validator=inputWorkspaceValidator,
direction=Direction.Input,
optional=PropertyMode.Optional),
doc='An empty container workspace for subtraction from the input workspace.')
self.declareProperty(name=common.PROP_EC_SCALING,
defaultValue=1.0,
validator=scalingFactor,
direction=Direction.Input,
doc='A multiplier (transmission, if no self ' +
'shielding is applied) for the empty container.')
self.declareProperty(MatrixWorkspaceProperty(
name=common.PROP_SELF_SHIELDING_CORRECTION_WS,
defaultValue='',
direction=Direction.Input,
optional=PropertyMode.Optional),
doc='A workspace containing the self shielding correction factors.')示例7: PyInit
def PyInit(self):
""" Declare properties
"""
validator = CompositeValidator()
validator.add(WorkspaceUnitValidator("TOF"))
validator.add(InstrumentValidator())
self.declareProperty(MatrixWorkspaceProperty("InputWorkspace", "", direction=Direction.Input, validator=validator),
doc="Input workspace.")
self.declareProperty(ITableWorkspaceProperty("EPPTable", "", direction=Direction.Input),
doc="Input EPP table. May be produced by FindEPP algorithm.")
self.declareProperty(MatrixWorkspaceProperty("OutputWorkspace", "", direction=Direction.Output),
doc="Name of the workspace that will contain the results")
return示例8: PyInit
def PyInit(self):
"""Declare properties
"""
wsValidators = CompositeValidator()
# X axis must be a NumericAxis in energy transfer units.
wsValidators.add(WorkspaceUnitValidator("DeltaE"))
# Workspace must have an Instrument
wsValidators.add(InstrumentValidator())
self.declareProperty(MatrixWorkspaceProperty(name="InputWorkspace", defaultValue="", direction=Direction.Input,
validator=wsValidators), doc="Workspace name for input")
self.declareProperty(FileProperty(name="Filename", defaultValue="", action=FileAction.Save, extensions=""),
doc="The name to use when writing the file")示例9: PyInit
def PyInit(self):
# ----------
# INPUT
# ----------
# State
self.declareProperty(PropertyManagerProperty('SANSState'),
doc='A property manager which fulfills the SANSState contract.')
# Main workspace
workspace_validator = CompositeValidator()
workspace_validator.add(WorkspaceUnitValidator("Wavelength"))
self.declareProperty(MatrixWorkspaceProperty("InputWorkspace", '',
optional=PropertyMode.Mandatory, direction=Direction.Input,
validator=workspace_validator),
doc='The main input workspace.')
# Adjustment workspaces
self.declareProperty(MatrixWorkspaceProperty("InputWorkspaceWavelengthAdjustment", '',
optional=PropertyMode.Optional, direction=Direction.Input,
validator=workspace_validator),
doc='The workspace which contains only wavelength-specific adjustments, ie which affects '
'all spectra equally.')
self.declareProperty(MatrixWorkspaceProperty("InputWorkspacePixelAdjustment", '',
optional=PropertyMode.Optional, direction=Direction.Input),
doc='The workspace which contains only pixel-specific adjustments, ie which affects '
'all bins within a spectrum equally.')
self.declareProperty(MatrixWorkspaceProperty("InputWorkspaceWavelengthAndPixelAdjustment", '',
optional=PropertyMode.Optional, direction=Direction.Input,
validator=workspace_validator),
doc='The workspace which contains wavelength- and pixel-specific adjustments.')
self.declareProperty('OutputParts', defaultValue=False,
direction=Direction.Input,
doc='Set to true to output two additional workspaces which will have the names '
'OutputWorkspace_sumOfCounts OutputWorkspace_sumOfNormFactors. The division '
'of _sumOfCounts and _sumOfNormFactors equals the workspace returned by the '
'property OutputWorkspace (default is false).')
# ----------
# Output
# ----------
self.declareProperty(MatrixWorkspaceProperty("OutputWorkspace", '',
optional=PropertyMode.Mandatory, direction=Direction.Output),
doc="The reduced workspace")示例10: PyInit
def PyInit(self):
validators = CompositeValidator()
validators.add(HistogramValidator(True))
validators.add(CommonBinsValidator())
self.declareProperty(MatrixWorkspaceProperty(name='InputWorkspace', defaultValue='', direction=Direction.Input, validator=validators),
doc='Input MatrixWorkspace containing the reduced inelastic neutron spectrum in (Q,E) space.')
self.declareProperty(name='Temperature', defaultValue=300., validator=FloatBoundedValidator(lower=0),
doc='Sample temperature in Kelvin.')
self.declareProperty(name='MeanSquareDisplacement', defaultValue=0., validator=FloatBoundedValidator(lower=0),
doc='Average mean square displacement in Angstrom^2.')
self.declareProperty(name='QSumRange', defaultValue='0,Qmax',
doc='Range in Q (in Angstroms^-1) to sum data over.')
self.declareProperty(name='EnergyBinning', defaultValue='0,Emax/50,Emax*0.9',
doc='Energy binning parameters [Emin, Estep, Emax] in meV.')
self.declareProperty(name='Wavenumbers', defaultValue=False,
doc='Should the output be in Wavenumbers (cm^-1)?')
self.declareProperty(name='StatesPerEnergy', defaultValue=False,
doc='Should the output be in states per unit energy rather than mb/sr/fu/energy?\n'+
'(Only for pure elements, need to set the sample material information)')
self.declareProperty(MatrixWorkspaceProperty(name='OutputWorkspace', defaultValue='', direction=Direction.Output),
doc='Output workspace name.')示例11: PyInit
def PyInit(self):
""" Declare properties
"""
validator = CompositeValidator()
validator.add(WorkspaceUnitValidator("TOF"))
validator.add(InstrumentValidator())
self.declareProperty(
MatrixWorkspaceProperty("InputWorkspace", "", direction=Direction.Input, validator=validator),
doc="Input Sample workspace",
)
# Optional but required if tof_elastic must be taken from fitted Vanadium or sample data
self.declareProperty(
ITableWorkspaceProperty("EPPTable", "", direction=Direction.Input, optional=PropertyMode.Optional),
"Input EPP table (optional). May be produced by FindEPP algorithm.",
)
self.declareProperty(
WorkspaceProperty("OutputWorkspace", "", direction=Direction.Output),
"Name of the workspace that will contain the result",
)
return示例12: PyInit
def PyInit(self):
self.declareProperty(FileProperty('CalibrationRun', '', action=FileAction.Load, extensions=['nxs']),
doc='File path of calibration run. Must be a detector scan.')
self.declareProperty(FileProperty('CalibrationFile', '', action=FileAction.OptionalLoad, extensions=['nxs']),
doc='Optional file containing previous calibration constants.')
self.declareProperty(name='CalibrationMethod',
defaultValue='Median',
validator=StringListValidator(['Median', 'Mean', 'MostLikelyMean']),
doc='The method of how the calibration constant of a '
'pixel relative to the neighbouring one is derived.')
self.declareProperty(name='InterpolateOverlappingAngles', defaultValue=False,
doc='Wheter to interpolate 2theta values for overlapping regions between neighbouring cells.')
self.declareProperty(name='NormaliseTo',
defaultValue='None',
validator=StringListValidator(['None', 'Monitor', 'ROI']),
doc='Normalise to time, monitor or ROI counts before deriving the calibration.')
thetaRangeValidator = FloatArrayOrderedPairsValidator()
self.declareProperty(FloatArrayProperty(name='ROI', values=[0,100.], validator=thetaRangeValidator),
doc='Regions of interest for normalisation [in scattering angle in degrees].')
normaliseToROI = VisibleWhenProperty('NormaliseTo', PropertyCriterion.IsEqualTo, 'ROI')
self.setPropertySettings('ROI', normaliseToROI)
self.declareProperty(FloatArrayProperty(name='ExcludedRange', values=[], validator=thetaRangeValidator),
doc='2theta regions to exclude from the computation of relative calibration constants '
'[in scattering angle in degrees]. ')
pixelRangeValidator = CompositeValidator()
greaterThanOne = IntArrayBoundedValidator()
greaterThanOne.setLower(1)
lengthTwo = IntArrayLengthValidator()
lengthTwo.setLength(2)
orderedPairsValidator = IntArrayOrderedPairsValidator()
pixelRangeValidator.add(greaterThanOne)
pixelRangeValidator.add(lengthTwo)
pixelRangeValidator.add(orderedPairsValidator)
self.declareProperty(IntArrayProperty(name='PixelRange', values=[1,3072], validator=pixelRangeValidator),
doc='Range of the pixel numbers to compute the calibration factors for. '
'For the other pixels outside the range, the factor will be set to 1.')
self.declareProperty(MatrixWorkspaceProperty('OutputResponseWorkspace', '',
optional=PropertyMode.Optional, direction=Direction.Output),
doc='Output workspace containing the summed diffraction patterns of all the pixels.')
self.declareProperty(MatrixWorkspaceProperty('OutputWorkspace', '',
direction=Direction.Output),
doc='Output workspace containing the detector efficiencies for each pixel.')示例13: PyInit
def PyInit(self):
validator = CompositeValidator()
validator.add(WorkspaceUnitValidator('Wavelength'))
validator.add(HistogramValidator())
validator.add(InstrumentValidator())
self.declareProperty(MatrixWorkspaceProperty('InputWorkspace', defaultValue='',
validator = validator,
direction = Direction.Input),
doc='The input workspace in wavelength')
self.declareProperty('BeamRadius', 0.1, FloatBoundedValidator(lower=0.), 'The radius of the beam [m]')
self.declareProperty(MatrixWorkspaceProperty('OutputWorkspace',
defaultValue='',
direction = Direction.Output),
doc='The output workspace')示例14: PyInit
def PyInit(self):
"""Initialize the algorithm's input and output properties."""
PROPGROUP_SIMULATION_INSTRUMENT = 'Simulation Instrument Settings'
greaterThanOneInt = IntBoundedValidator(lower=2)
greaterThanTwoInt = IntBoundedValidator(lower=3)
inputWorkspaceValidator = CompositeValidator()
inputWorkspaceValidator.add(InstrumentValidator())
inputWorkspaceValidator.add(WorkspaceUnitValidator('TOF'))
# Properties.
self.declareProperty(MatrixWorkspaceProperty(
name=common.PROP_INPUT_WS,
defaultValue='',
validator=inputWorkspaceValidator,
optional=PropertyMode.Optional,
direction=Direction.Input),
doc='A workspace for which to simulate the self shielding.')
self.declareProperty(MatrixWorkspaceProperty(name=common.PROP_OUTPUT_WS,
defaultValue='',
direction=Direction.Output),
doc='A workspace containing the self shielding correction factors.')
self.declareProperty(name=common.PROP_CLEANUP_MODE,
defaultValue=common.CLEANUP_ON,
validator=StringListValidator([
common.CLEANUP_ON,
common.CLEANUP_OFF]),
direction=Direction.Input,
doc='What to do with intermediate workspaces.')
self.declareProperty(name=common.PROP_SUBALG_LOGGING,
defaultValue=common.SUBALG_LOGGING_OFF,
validator=StringListValidator([
common.SUBALG_LOGGING_OFF,
common.SUBALG_LOGGING_ON]),
direction=Direction.Input,
doc='Enable or disable subalgorithms to ' +
'print in the logs.')
self.declareProperty(name=common.PROP_SIMULATION_INSTRUMENT,
defaultValue=common.SIMULATION_INSTRUMEN_SPARSE,
validator=StringListValidator([
common.SIMULATION_INSTRUMEN_SPARSE,
common.SIMULATION_INSTRUMENT_FULL]),
direction=Direction.Input,
doc='Select if the simulation should be performed on full or approximated instrument.')
self.setPropertyGroup(common.PROP_SIMULATION_INSTRUMENT, PROPGROUP_SIMULATION_INSTRUMENT)
self.declareProperty(name=common.PROP_SPARSE_INSTRUMENT_ROWS,
defaultValue=5,
validator=greaterThanTwoInt,
direction=Direction.Input,
doc='Number of detector rows in sparse simulation instrument.')
self.setPropertyGroup(common.PROP_SPARSE_INSTRUMENT_ROWS, PROPGROUP_SIMULATION_INSTRUMENT)
self.setPropertySettings(common.PROP_SPARSE_INSTRUMENT_ROWS, EnabledWhenProperty(common.PROP_SIMULATION_INSTRUMENT,
PropertyCriterion.IsEqualTo, common.SIMULATION_INSTRUMEN_SPARSE))
self.declareProperty(name=common.PROP_SPARSE_INSTRUMENT_COLUMNS,
defaultValue=20,
validator=greaterThanOneInt,
direction=Direction.Input,
doc='Number of detector columns in sparse simulation instrument.')
self.setPropertyGroup(common.PROP_SPARSE_INSTRUMENT_COLUMNS, PROPGROUP_SIMULATION_INSTRUMENT)
self.setPropertySettings(common.PROP_SPARSE_INSTRUMENT_COLUMNS, EnabledWhenProperty(common.PROP_SIMULATION_INSTRUMENT,
PropertyCriterion.IsEqualTo, common.SIMULATION_INSTRUMEN_SPARSE))
self.declareProperty(name=common.PROP_NUMBER_OF_SIMULATION_WAVELENGTHS,
defaultValue=Property.EMPTY_INT,
validator=greaterThanTwoInt,
direction=Direction.Input,
doc='Number of wavelength points where the simulation is performed (default: all).')示例15: PyInit
def PyInit(self):
"""Initialize the input and output properties of the algorithm."""
threeNonnegativeInts = CompositeValidator()
threeNonnegativeInts.add(IntArrayLengthValidator(3))
nonnegativeInts = IntArrayBoundedValidator(lower=0)
threeNonnegativeInts.add(nonnegativeInts)
nonnegativeFloatArray = FloatArrayBoundedValidator(lower=0.)
inWavelength = WorkspaceUnitValidator('Wavelength')
self.declareProperty(
MatrixWorkspaceProperty(
Prop.INPUT_WS,
defaultValue='',
direction=Direction.Input,
validator=inWavelength),
doc='A reflected beam workspace (units wavelength).')
self.declareProperty(
MatrixWorkspaceProperty(
Prop.OUTPUT_WS,
defaultValue='',
direction=Direction.Output),
doc='The summed foreground workspace.')
self.declareProperty(
Prop.SUBALG_LOGGING,
defaultValue=SubalgLogging.OFF,
validator=StringListValidator([SubalgLogging.OFF, SubalgLogging.ON]),
doc='Enable or disable child algorithm logging.')
self.declareProperty(
Prop.CLEANUP,
defaultValue=utils.Cleanup.ON,
validator=StringListValidator([utils.Cleanup.ON, utils.Cleanup.OFF]),
doc='Enable or disable intermediate workspace cleanup.')
self.declareProperty(
Prop.SUM_TYPE,
defaultValue=SumType.IN_LAMBDA,
validator=StringListValidator([SumType.IN_LAMBDA, SumType.IN_Q]),
doc='Type of summation to perform.')
self.declareProperty(
MatrixWorkspaceProperty(
Prop.DIRECT_FOREGROUND_WS,
defaultValue='',
direction=Direction.Input,
optional=PropertyMode.Optional,
validator=inWavelength),
doc='Summed direct beam workspace (units wavelength).')
self.declareProperty(
IntArrayProperty(
Prop.FOREGROUND_INDICES,
values=[Property.EMPTY_INT, Property.EMPTY_INT, Property.EMPTY_INT],
validator=threeNonnegativeInts),
doc='A three element array of foreground start, centre and end workspace indices.')
self.declareProperty(
MatrixWorkspaceProperty(
Prop.DIRECT_WS,
defaultValue='',
direction=Direction.Input,
optional=PropertyMode.Optional,
validator=inWavelength),
doc='The (not summed) direct beam workspace (units wavelength).')
self.declareProperty(
FloatArrayProperty(
Prop.WAVELENGTH_RANGE,
values=[0.],
validator=nonnegativeFloatArray),
doc='The wavelength bounds.')