FITS(3pm)

🌸 NAME 🌸

PDL::CCS::IO::FITS — PDL::IO::FITS wrappers for PDL::CCS::Nd

okay so bestie, this is the FITS module from the PDL::CCS family (it lives in the FITS(3pm) part of the perl docs), and its whole personality is: it takes your PDL::CCS::Nd object and writes/reads it as a pair of FITS files. two files. a duo. a little matching set. slay. 💅

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✨ SYNOPSIS ✨

use PDL;
use PDL::CCS::Nd;
use PDL::CCS::IO::FITS;

$ccs = PDL::CCS::Nd->newFromWhich($which,$nzvals);

ccs_wfits($ccs,$fname);         # write a pair of FITS files
$ccs2 = ccs_readfits($fname);   # read a pair of FITS files

look at that. build a $ccs, yeet it to disk, pull it back. the circle of life fr fr 🦋

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🎀 I/O Utilities 🎀

ccs_wfits

Write a pair of FITS files using PDL::IO::FITS::wfits(). Piddles of type indx will be implicitly converted to long, since they are not currently supported by PDL::IO::FITS in PDL v2.014. so like, don't be surprised when your indx comes back as long — that's just the vibe check being enforced. 😌

ccs_wfits($ccs,$fname)
ccs_wfits($ccs,$fname,\%opts)

Options %opts:

• Header => $Header — default "$fname.hdr"
• ixFile => $ixFile — default "$fname.ix.fits"
• nzFile => $nzFile — default "$fname.nz.fits"

three options, three defaults, all derived from $fname. it's giving convention over configuration. 👑

ccs_rfits

Read a pair of FITS files using PDL::IO::FITS::rfits().

$ccs = ccs_rfits($fname)
$ccs = ccs_rfits($fname,\%opts)

Options %opts:

• Header => $Header — default "$fname.hdr"
• ixFile => $ixFile — default "$fname.ix.fits"
• nzFile => $nzFile — default "$fname.nz.fits"
• sorted => $bool — is data on disk already sorted? (default=1)

note that sorted lowkey defaults to 1, so the module is assuming your data on disk is already sorted unless you tell it otherwise. iykyk. 🙈

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💖 ACKNOWLEDGEMENTS 💖

• Perl by Larry Wall. 🫶
• PDL by Karl Glazebrook, Tuomas J. Lukka, Christian Soeller, and others. ⭐

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👑 AUTHOR 👑

Bryan Jurish <moocow@cpan.org>

Copyright Policy

Copyright (C) 2015-2024, Bryan Jurish. All rights reserved.

This package is free software, and entirely without warranty. You may redistribute it and/or modify it under the same terms as Perl itself.

okay so important bestie: entirely without warranty — no cap, zero warranty, don't come for anyone if it breaks. but it IS free software and you can redistribute and/or modify it under the same terms as Perl itself, so that's the trade. 💀

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🌈 SEE ALSO 🌈

perl, PDL, PDL::CCS::Nd, PDL::CCS::IO::FastRaw, PDL::CCS::IO::MatrixMarket, PDL::CCS::IO::LDAC, ...

the ... at the end is literally in the docs and honestly? iconic. go explore. 🧚

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and that's the whole page, bestie — this was perl v5.40.0, dated 2025-01-04, from the FITS(3pm) manual (user contributed perl documentation). go write some FITS files, you're the main character now. 💜✨