NCGM2CGM(1NCARG)

📦 version 6.6.2.dfsg.1, in debian bookworm, debian trixie, ubuntu jammy, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 NCGM2CGM — the 1NCARG era, NCAR GRAPHICS 💖

okay bestie, sit down, hydrate, and let me tell you about two lil filter programs that are basically the translators of the vintage graphics world 🫶 they live in the 1NCARG manual, they're part of NCAR GRAPHICS, and they do exactly one job each and they do it well. iconic behaviour, honestly. 💅

✨ NAME ✨

  • ncgm2cgm — filter NCAR CGM to vanilla CGM 🍦
  • cgm2ncgm — filter NCAR CGM from vanilla CGM 🍦➡️🌸

like. they're a matched set. soulmates, even. 😭

🌈 SYNOPSIS 🌈

ncgm2cgm [ -s output block size ] [ -V ]

cgm2ncgm [ -s input block size ] [ -V ]

look at them. symmetrical. we love to see it. ✨

🦋 DESCRIPTION 🦋

so ncgm2cgm and cgm2ncgm are filters — and what they filter is the conversion back and forth between NCAR Computer Graphics Metafile (CGM) and vanilla CGM. no cap, that's the whole gig. 🎀

here's the tea:

  • ncgm2cgm strips the wrapper from NCAR CGM records 🧚
  • cgm2ncgm restores it 💜

and I/O? it's done from standard in / standard out respectively. so you pipe in, you pipe out, you don't touch a single file path, it's giving main character energy on the command line. periodt. 🔥

💅 OPTIONS 💅

both of them take these, and the vibes are immaculate:

  • -s size — set the block size in bytes for reads/writes of vanilla CGM. the default blocking factor is 1024. ⭐ (yes bestie, one thousand twenty-four, write it down.)
  • -V — print the version number and then exit. that's it. that's the option. she's short, she's sweet, she slays. 👑

🌸 SEE ALSO 🌸

  • ISO/DIS 8632 CGM Functional Specification (Nov. 1985) — the OG source material, the blueprint, the blueprint-est. if you want the real lore, go here. 📚✨

💀 BUGS 💀

okay so this is the part where we get real, because the drama is real:

Some vanilla metafile interpretors take advantage of shortcuts provided by their CGM generators. In effect, they are not true CGM interpretors. 😭

read that again. not true CGM interpretors. the audacity. 🙈

so here's what that means for you, fr fr:

  • it will still be possible to convert these metafiles to NCAR format, and those may be interpreted by NCAR Graphics translators. 🫶
  • but it may not be the case that the aforementioned interpreters will be able to translate true vanilla metafiles — such as those produced by ncgm2cgm. 💀

so like. the shortcut-takers can receive, but can they give? unclear. possibly not. lowkey a red flag ngl. 🚩

Copyright (C) 1987-2009 University Corporation for Atmospheric Research

The use of this Software is governed by a License Agreement.

(put some respect on it, it's been around since 1987 and it's still here 💜)

and that's the whole page bestie!! 🎀 this beauty comes to you from the NCARG manual, dated January 1993 — a true vintage queen — and the source line says NCGM2CGM(1NCARG) at the bottom, so you know exactly where to find her again. mwah. 💖✨🦋🌸🫶

📦 where this page comes from