WINDOW_FRAME(1)

📦
version 7.44.0 · 2 versions
, in nixpkgs unstable

💅 window_frame(1) — the rounded-window-frame generator, bestie edition ✨

okay so real quick before we dive in: this is a page from the BRL-CAD manual, section 1, and it's literally all about a tiny little program called window_frame that makes you geometry. yes queen. let's get into it 🫶

✨ NAME ✨

window_frame — creates a BRL-CAD geometry database full of rounded window frames. that's it. that's the whole gig 💖

🎀 SYNOPSIS 🎀

window_frame [-f_name.g_] [-n_#_] [-H_#_] [-w_#_] [-d_#_] [-r_#_] [-i_#_]

ngl the synopsis looks like it's having a moment, but it's fine, we'll walk through every single flag below. no frame left behind 💅

🦋 DESCRIPTION 🦋

so window_frame creates a BRL-CAD .g geometry database containing one or more window frames with rounded edges and corners. iconic behavior honestly. each frame is built from four arb8s and eight cylinders — like, that's the recipe, that's the whole build 🧚

the front face of a frame is centered at the origin (0, 0, 0), and the frame extends in the negative X direction by its depth. yes, negative. it's giving "backwards" but it's correct, trust. ⭐

up to 256 identically sized frames can be generated in a single run. all dimensions are in millimeters (metric slay 🌈). if you invoke it with no arguments, window_frame prints usage info and then prompts you interactively for each parameter — very "tell me about yourself" energy. otherwise the values come from the command-line options below.

⚠️ huge heads up bestie: each option's value must be attached directly to its flag with no intervening space. so it's -H1618, not -H 1618. the space will ruin the vibe and also the parse. 😭

unspecified numeric values default to zero. so if you forget something, you get a zero, and a zero-sized frame is lowkey not the moment you wanted.

the resulting geometry can be inspected or rendered with the usual BRL-CAD tools such as mged(1) and rt(1). we love a program that plays nice with its friends 💜

🌸 OPTIONS 🌸

  • -fname.g — name of the BRL-CAD .g database to create (256 characters max). keep it short-ish, she's got limits.
  • -n# — number of window frames to create (up to 256). more frames = more frame.
  • -H# — height of the window frame in millimeters.
  • -w# — width of the window frame in millimeters.
  • -d# — depth of the window frame in millimeters.
  • -r# — radius of the rounded corners in millimeters. this is the cute part, do not skip her 🎀
  • -i# — actual width of the frame material itself, in millimeters.
  • -h, -? — print a help/usage message and exit. the "wait what" escape hatch 🫶

🔥 EXAMPLES 🔥

Example 1. Generate a window frame and raytrace it

window_frame -fwin.g -n1 -H1618 -w1000 -d100 -r50 -i75
rt -o win.png -s 1024 win.g wfra

okay so the first command writes win.g containing a single 1618 mm by 1000 mm frame, 100 mm deep, with 50 mm rounded corners and 75 mm of frame material. chef's kiss, no notes. 💅

the second command raytraces the generated group wfra (that's the first frame's group, iykyk) into a 1024x1024 image called win.png. and then you look at it. and it's beautiful. 😭✨

💖 SEE ALSO 💖

brlcad(1), mged(1), rt(1), window(1), gastank(1), handle(1), bolt(1)

(the whole friend group showed up, we love to see it 🫶)

👑 AUTHOR 👑

BRL-CAD Team

This software is Copyright (c) 1989-2026 by the United States Government as represented by U.S. Army Research Laboratory.

🙈 BUG REPORTS 🙈

Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org

like, if something's weird, tell the devs, don't suffer in silence bestie 💀💜

and that's the whole page!! mwah 💋

this little love letter came to you from the BRL-CAD manual — window_frame(1), so you always know where to find her again 🌸🎀💖

📦 where this page comes from