JOINT(nged)

manage kinematic joint and constraint data for articulated models

📅 published 7.44.0, from nixpkgs unstable

💅 JOINT(nged) — bestie's guide to articulated models 💅

okay so this is a BRL-CAD User Commands page, and it's all about the joint command in nged. grab a snack, we're building robots 🦋

✨ SYNOPSIS ✨

joint subcommand [args]

like, that's it. joint, then a subcommand, then whatever args that subcommand wants. iconic. 👑

🌸 DESCRIPTION 🌸

the joint command manages kinematic joint and constraint data — the stuff used to describe articulated geometry models. so: joints define the degrees of freedom between parts (how they move, bestie), and constraints restrict that motion (the rules, the boundaries, the "no ma'am" of it all). 🎀

🫶 Subcommands 🫶

here's the whole roster, no skips, no cuts:

  • ? [commands] — list the available subcommands. the classic "what can u even do" move 💅
  • accept [joints] — accept (commit) a series of joint moves. like hitting send on the group chat, but for motion. ✨
  • debug [hex code] — show or set the debugging bit vector. hex code, pls, we're fancy. 🔥
  • help [commands] — print usage information for the subcommands you named. the built-in "explain urself" 🧚
  • holds [names] — list the currently loaded constraint holds. literally just showing u what's holding on 😭
  • list [names] — list the currently loaded joint objects. the vibe check of loaded joints ngl
  • load file_name — load joint and constraint definitions from a file. bringing ur data in from the outside 🌈
  • mesh — build the kinematic grip mesh from the loaded joints. it's giving construction 💀
  • move joint_name p1 [p2 ... p6] — manually adjust a joint by specifying one or more parameter values. yes, up to p6, go off 👑
  • reject [joint_names] — reject (undo) joint position changes. ctrl+z but make it joints 🙈
  • save file_name — save the current joint and constraint definitions to a file. protect ur work bestie 💖
  • solve constraint — solve one or all loaded constraints. math said "let me cook" ⭐
  • unload — unload all joints and constraints from memory. clean slate, main character energy 🦋

🍓 EXAMPLES 🍓

Example 1. Load a joint file

mged> joint load arm_joints.jnt

loads joint definitions from arm_joints.jnt. boom, arm has joints now. 💅

Example 2. List joints

mged> joint list

lists all currently loaded joints. lil inventory moment ✨

Example 3. Move a joint

mged> joint move elbow_joint 45

sets the elbow_joint position parameter to 45. bend that elbow, slay 🫶

Example 4. Accept the current joint positions

mged> joint accept

commits all pending joint moves to the model. no takesy-backsies... unless u reject, iykyk 😭

🧚 SEE ALSO 🧚

  • constraint(nged) — the bestie to this bestie 💜

👑 AUTHOR 👑

BRL-CAD Team — the icons behind it all 🌟

💀 BUG REPORTS 💀

found a bug? a problem? a little gremlin in the code? report it via electronic mail to devs@brlcad.org — they will see ur email, fr fr 📧

ngl this page is from the BRL-CAD family of docs — JOINT(nged), no cap. 💖 go move some joints bestie, u got this 🔥
📦 where this page comes from