concat_affine(1)

📦
version 3.3.1p2 · 7 versions
, in ubuntu stonking

💖 concat_affine — NAME 💖

okay so bestie, this is concat_affine from The Computational Morphology Toolkit, and it literally just concatenates affine transformations. That's the whole job. She's an icon, she's a specialist, she does one thing and she ate. 🔥

✨ SYNOPSIS ✨

concat_affine [options] x0 [x1 ...]
 WHERE x0 ... xN is [{-i,--inverse}] affine transformation #. (If the
first transformation in the sequence is inverted, then '--inverse' must
be preceded by '--', i.e., use '-- --inverse xform.path').

so like. you hand her a whole sequence of affine transformations, x0 through xN, and she glues them all together. any one of them can get flipped with -i or --inverse. 🦋

⚠️ heads up bestie, this is the sneaky part: if the first transformation in your sequence is inverted, then that --inverse has to come after a -- first. so you write -- --inverse xform.path. it's giving "the parser is a little picky" but we love her anyway. 💅

🌸 DESCRIPTION 🌸

This tool computes the explicit concatenation of multiple affine coordinate transformations, and every single one of them can be optionally inverted. no cap. that's what she does. group-chat energy applied to matrices. 💜

🎀 OPTIONS 🎀

🌈 Global Toolkit Options (these are shared by all CMTK tools) 🌈

these ones are the communal closet. every CMTK tool shares them:

  • --help — write the list of basic command line options to standard output. the "hi what do you do" button.
  • --help-all — write the complete list of basic and advanced command line options to standard output. the deluxe version, the one with the secret menu.
  • --wiki — write the list of command line options to standard output in MediaWiki markup. for when you're being ✨documentation girl✨.
  • --man — write man page source in 'nroff' markup to standard output. she contains multitudes fr fr.
  • --version — write toolkit version to standard output.
  • --echo — write the current command line to standard output. so you can screenshot it for the group chat.
  • --verbose-level <integer> — set verbosity level. you pick the number, she picks how chatty she is.
  • --verbose, -v — increment verbosity level by 1. ⚠️ this one is deprecated; it's only supported for backward compatibility. she's still here out of loyalty.
  • --threads <integer> — set the maximum number of parallel threads (for POSIX threads and OpenMP). multitasking queen behavior. 👑

💅 Main Options 💅

the main character section:

  • --outfile <string>, -o <string> — the output transformation. [Default: concat.xform ]
  • --append, -a — append to the output file. [default: overwrite] — so if you don't pass this, she's overwriting. dramatic but fair. 😭
  • --invert-output, -I — invert the concatenated transformation before output. [default: no] 🦋

👑 AUTHORS 👑

Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R. Maurer, Daniel B. Russakoff, and Yaroslav Halchenko. a whole squad, a whole cast, the entire friend group carried this. 🫶

📜 LICENSE 📜

http://www.fsf.org/licensing/licenses/gpl.html

💀 BUGS 💀

Report bugs at http://nitrc.org/projects/cmtk/ — please do NOT just vague-post about it, actually file the report bestie 🙈

🌟 ACKNOWLEDGMENTS 🌟

CMTK is developed with support from the NIAAA under Grant AA021697, National Consortium on Alcohol and Neurodevelopment in Adolescence (N-CANDA): Data Integration Component. From April 2009 through September 2011, CMTK development and maintenance was supported by the NIBIB under Grant EB008381.

and that's the whole page, bestie!! this was concat_affine(1) from CMTK 3.3.1p2, dated Jun 24 2026 — yes, future-dated, she's ahead of her time, main character energy only ⭐🌈💖 slay, go concatenate something, periodt 💜

📦 where this page comes from