Package pysynphot :: Module spectrum :: Class SpectralElement

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Class SpectralElement

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Base class for a Spectral Element (e.g. Filter, Detector...).

Instance Methods

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validate_units(self)
Ensure that waveunits are WaveUnits

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__mul__(self, other)
Permitted to multiply a SpectralElement by another SpectralElement, or by a SourceSpectrum.

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__rmul__(self, other)

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convert(self, targetunits)
Convert to other units.

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ToInternal(self)
Convert wavelengths to the internal representation of angstroms..

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__call__(self, wavelengths)
This is where the throughput array is calculated for a given input wavelength table.

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sample(self, wavelengths)
Provide a more normal user interface to the __call__

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taper(self)
Taper the spectrum by adding zeros to each end.

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writefits(self, filename, clobber=True, trimzero=True, precision=None)
Write the bandpass to a FITS file.

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resample(self, resampledWaveTab)
Interpolate throughput given a wavelength array that is monotonically increasing and the TabularSpectralElement object.

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unitResponse(self)
Is this correct if waveunits != Angstrom?

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GetWaveSet(self)
Return the waveset in the requested units.

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GetThroughput(self)
Return the throughput for the internal wavetable.

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fwhm(self)

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Inherited from Integrator: trapezoidIntegration, validate_fluxtable, validate_wavetable

Inherited from Integrator (private): _columnsFromASCII

Inherited from object: __delattr__, __getattribute__, __hash__, __init__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Properties

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wave
Waveset for bandpass

throughput
Throughput for bandpass

Inherited from object: __class__

Method Details

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mul(self, other)

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Permitted to multiply a SpectralElement by another SpectralElement, or by a SourceSpectrum. In the former case we return a CompositeSpectralElement, while in the latter case a CompositeSourceSpectrum.

convert(self, targetunits)

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Convert to other units. This method actually just changes the wavelength unit objects, it does not recompute the internally kept wave data; these are kept always in internal units. Method getWaveSet does the actual computation.

ToInternal(self)

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Convert wavelengths to the internal representation of angstroms.. Note: This is not yet used, but should be for safety when creating TabularSpectralElements from files. It will also be necessary for the ArraySpectralElement class that we want to create RSN.

call(self, wavelengths)
(Call operator)

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This is where the throughput array is calculated for a given input wavelength table.

Parameters:

wavelengths (ndarray) - an array of wavelengths in Angstroms at which the throughput should be sampled

Property Details

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wave

Waveset for bandpass

Get Method:: GetWaveSet(self) - Return the waveset in the requested units.

throughput

Throughput for bandpass

Get Method:: GetThroughput(self) - Return the throughput for the internal wavetable.

Class SpectralElement

__mul__(self, other)

convert(self, targetunits)

ToInternal(self)

__call__(self, wavelengths) (Call operator)

wave

throughput

mul(self, other)

call(self, wavelengths)
(Call operator)