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22 lines
1.1 KiB
Plaintext
22 lines
1.1 KiB
Plaintext
Class to transparently deal with the conversion between filters, wavelength,
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frequency and other methods of specifying a location in the electro-magentic
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spectrum.
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Astro::WaveBand tries to determine the natural form of the numbers such that a
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request for a summary of the object when it contains 2.2 microns would return
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the filter name but would return the wavelength if it was not a standard filter.
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In ambiguous cases an instrument name is required to decide what to return. In
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really ambiguous cases the user can specify the unit in which to display the
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numbers on stringification.
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Used mainly as a way of storing a single number in a database table but using
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logic to determine the number that an observer is most likely to understand.
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Numerical comparison operators can be used to compare two Astro::WaveBand
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objects. When checking equality, the "natural" and "instrument" methods are
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used, so if two Astro::WaveBand objects return the same value from those
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methods, they are considered to be equal. When checking other comparisons such
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as greater than, the wavelength is used.
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WWW: https://metacpan.org/release/Astro-WaveBand
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