METABALL_MOVE_PNT(nged)

💅 METABALL_MOVE_PNT (nged) — or, how to scoot a metaball control point around

okay bestie, welcome to the metaball_move_pnt page from the BRL-CAD User Commands manual. this is a nged command, it moves one single control point of a METABALL primitive, and honestly? it's giving precise. it's giving surgical. let's go 🎀

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✨ NAME ✨

metaball_move_pnt — Move a control point of a METABALL primitive.

that's it. that's the whole job. one point, one move, no drama 💅

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🌸 SYNOPSIS 🌸

metaball_move_pnt metaball pt_i {x y z}
metaball_move_pnt -r metaball pt_i {dx dy dz}

two whole moods, pick your fighter 🫶

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🦋 DESCRIPTION 🦋

so the metaball_move_pnt command moves the control point at index pt_i in the specified METABALL primitive. like, you point at the blob, you point at the index, you hand over the coords, and it moves. iconic behavior, no notes ✨

here's the tea on the two modes tho, because they are NOT the same and you need to know:

• no -r — the point you supply is read as an absolute location in the database's local units. you're saying "put it RIGHT here", periodt.
• with -r — the point you supply is treated as a relative offset from where that control point currently sits. you're saying "nudge it this much from where it's at", iykyk.

also!! the alternate command name mouse_move_metaball_pnt is available too, so if you see that floating around, it's the same thing wearing a different outfit 💜

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🍓 EXAMPLES 🍓

Example 1. Move a metaball control point upward relative to its current position.

mged> metaball_move_pnt -r blob.s 2 {0 0 5}

Moves point index 2 of blob.s five local units in the positive Z direction. five whole units!! upward!! she's ascending 👑 and yeah, the -r is doing the heavy lifting there — it's a relative nudge, not an absolute placement. don't forget it 😭

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🔥 SEE ALSO 🔥

• mouse_move_metaball_pnt(nged)
• mouse_add_metaball_pnt(nged)
• metaball_delete_pnt(nged)

the whole metaball friend group, go say hi 🫶

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🌈 AUTHOR 🌈

BRL-CAD Team — the actual legends who wrote this 💖

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💀 BUG REPORTS 💀

found a bug? a problem? something acting sus? reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org — like, actually email them, don't just suffer in silence bestie 🙈

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and that's the page!! source/version: BRL-CAD, straight from the METABALL_MOVE_PNT(nged) corner of the manual. go move some control points, you absolute main character, and remember: absolute without -r, relative with -r. mwah 💋🌸