gleScrew(3GLE)

gleScrew 💅✨

okay bestie, welcome to gleScrew(3GLE) — this one lives in the GLE manual, section 3GLE, and it's literally just: draws screw-type shapes. that's the whole vibe. 🌀

🎀 SYNTAX 🎀

here's the summoning circle, copy it exactly or the compiler will simply not know you:

void gleScrew (int ncp,
               gleDouble contour[][2],
               gleDouble cont_normal[][2],
               gleDouble up[3],
            gleDouble startz,
            gleDouble endz,
            gleDouble twist);

🦋 ARGUMENTS 🦋

• ncp — how many points are in your contour. the count. the headcount. 🔢
• contour — the 2D contour itself.
• cont_normal — the 2D contour normals. (its little perpendicular besties, they ride along.)
• up — the up vector for the contour.
• startx — start of segment. (yes, the manpage really writes startx here while the syntax says startz — iconic inconsistent queen behavior, we simply report it as written 👑)
• endz — end of segment.
• twist — number of rotations. 🌀

💖 DESCRIPTION 💖

so what does it do. it draws screw-type shapes. you hand it a contour, and it extrudes that contour along the z-axis, starting at a z value of startz and running all the way to an end z-value of endz.

and during that extrusion? it spins. the contour gets spun along the contour origin by twist degrees. so you're not just pulling a shape upward, you're twisting it as it goes — that's the screw energy, that's the whole point, that's the main character move fr fr. 🍓

ngl, quick heads up: the DESCRIPTION says twist is measured in degrees, while the ARGUMENTS list calls it number of rotations. both of those are in the original page, we are not picking a side. iykyk 😭

🌸 SEE ALSO 🌸

• gleExtrusion — go look at that one too, they're cousins 🫶

⭐ AUTHOR ⭐

Linas Vepstas (linas@linas.org) — thank you for the screws, king 💜

and that's the page!! this was GLE version 3.0, gleScrew(3GLE), and yeah we're done here. slay, go twist something. 💅🌈✨