CONV-VG2G(1)

📦
version 7.44.0 · 2 versions
, in nixpkgs unstable

💖 conv-vg2g — upgrade ur old binary MGED databases to version 4, bestie 💖

okay so real talk, this is conv-vg2g from the BRL-CAD manual, section 1 (general commands). she's a little vintage-converter icon and honestly? she ate. let me walk u through it 🫶

✨ SYNOPSIS ✨

conv-vg2g file.vg file.g

two files in, one glow-up out. that's the whole vibe check 💅

🦋 DESCRIPTION 🦋

so conv-vg2g converts older forms of binary mged(1) databases into the version 4 format. glow-up central, no cap ✨

the conversion from version 3 to version 4? pretty straightforward, lowkey chill. but conversion from older versions needs extra info, and that's where she gets chatty — the user is interactively prompted. ur gonna be asked to specify:

  • the database units — 1=mm, 2=cm, 3=meters, 4=inches, 5=feet
  • and a title for the database

so yeah, bring ur answers to the group chat 💬

fr fr: if ur input is ancient, this is interactive. not a background job moment. don't walk away from the terminal 😭

🎀 EXAMPLES 🎀

Example 1. Convert an old database and inspect the result

conv-vg2g old_model.vg new_model.g
mged new_model.g

so what's happening here: she converts the old binary database old_model.vg into the version 4 format, saving the output to new_model.g, and then u open the converted database in mged(1). ✨ iconic two-step ✨

and here's the tea 🍓 — if the input predates version 3, conv-vg2g interactively prompts u for the original units (1=mm, 2=cm, 3=meters, 4=inches, 5=feet) plus a title, so the geometry can be scaled to the millimeter base units used internally. she's not just being nosy, she NEEDS it 💀

🌈 SEE ALSO 🌈

besties in the same friend group:

go say hi 👋

💀 DIAGNOSTICS 💀

the error messages are intended to be self-explanatory, and they usually indicate errors in the input database. periodt. 💅

and here's the wild part — it may be possible to rescue a damaged old database by suitably modifying the source code to the converter. yes, really. goblin-mode engineering. u didn't hear it from me 🙈🔧

👑 AUTHOR 👑

Keith A. Applin — the mastermind, the main character. we stan 🫶

This software is Copyright (c) 1989-2026 by the United States Government as represented by U.S. Army Research Laboratory. legal slay, ngl ⚖️✨

🧚 BUG REPORTS 🧚

found a bug? a problem? a cursed little glitch? 🐛 reports of bugs or problems should be submitted via electronic mail to:

devs@brlcad.org

they're literally waiting for ur email, iykyk 📬💖

lowkey remember: this converter will interactively prompt u for old-version databases, so it's not a set-it-and-forget-it situation. be present. hydrate. answer the prompts. 💧

k that's the whole page!! 🌸 this was CONV-VG2G(1) from the BRL-CAD collection — same name at the top and bottom of the original, so like, symmetry 💫 — and the copyright rolls all the way to 1989-2026. go convert something gorgeous, bestie, mwah 🎀💋

📦 where this page comes from