DetectorCurve#

class lsst.meas.algorithms.DetectorCurve(wavelength, efficiency, metadata)#

Subclass of Curve that represents a single curve per detector.

Parameters#

wavelengthastropy.units.Quantity: Wavelength values for this curve
efficiencyastropy.units.Quantity: Quantum efficiency values for this curve
metadatadict: Dictionary of metadata for this curve

Attributes Summary

Methods Summary

`evaluate`(detector, position, wavelength[, ...])	Interpolate the curve at the specified position and wavelength.
`fromTable`(table)	Class method for constructing a `Curve` object.
`toTable`()	Convert this `Curve` object to an `astropy.table.QTable`.

Attributes Documentation

Methods Documentation

evaluate(detector, position, wavelength, kind='linear', bounds_error=False, fill_value=0)#

Interpolate the curve at the specified position and wavelength.

detectorlsst.afw.cameraGeom.Detector: Is used to find the appropriate curve given the position for curves that vary over the detector. Ignored in the case where there is only a single curve per detector.
positionlsst.geom.Point2D: The position on the detector at which to evaluate the curve.
wavelengthastropy.units.Quantity: The wavelength(s) at which to make the interpolation.
kindstr, optional: The type of interpolation to do (default is ‘linear’). See documentation for scipy.interpolate.interp1d for accepted values.
bounds_errorbool, optional: Raise error if interpolating outside the range of x? (default is False)
fill_valuefloat, optional: Fill values outside the range of x with this value (default is 0).

valueastropy.units.Quantity: Interpolated value(s). Number of values returned will match the length of wavelength.

ValueError: If the bounds_error is changed from the default, it will raise a ValueError if evaluating outside the bounds of the curve.

classmethod fromTable(table)#

Class method for constructing a Curve object.

tableastropy.table.QTable: Table containing metadata and columns necessary for constructing a Curve object.

curveCurve: A Curve subclass of the appropriate type according to the table metadata

toTable()#

Convert this Curve object to an astropy.table.QTable.

tableastropy.table.QTable: A table object containing the data from this Curve.