man(7)

💖 cgalsimp2 — the man page, but make it cute 💖

okay so bestie, this is the man(7) page for cgalsimp2, and no cap it's giving triangular surface mesh simplification energy. sit down, grab a strawberry 🍓, and let's get into it.

---

✨ NAME ✨

cgalsimp2 — triangular surface mesh simplification. that's the whole vibe. 💅

---

🌸 SYNOPSIS 🌸

cgalsimp2 input.off keepratio

literally just two things and you're done, iykyk. 🫶

---

🦋 DESCRIPTION 🦋

okay so cgalsimp2 is a surface mesh simplification utility, and it's built on the CGAL library (that's http://cgal.org if you wanna go look, which you should, it's iconic).

this tool uses the Lindstrom–Turk algorithm and decimates a surface mesh into a coarser, downsampled surface. like, it takes your mesh and it ate down to something smaller. periodt.

the output mesh gets stored in a file named "out.off". that's the name, don't fight it. 💖

if you want the whole lore on the underlying algorithm, please see https://doc.cgal.org/latest/Surface_mesh_simplification/. go read it, it's a whole thing. 📖✨

---

💅 OPTIONS 💅

this program accepts the following input parameters (yes, both of them, both required, no you can't skip one):

• input.off | (required) — the input surface mesh, in the OFF format. it's required bestie, you can't just not bring it.
• keepratio | (required) — a 0–1 floating point number denoting the percentage of edges that will be preserved. and yes, 1-keepratio is the percentage of edges that will be decimated, so the math is mathing. now here's the tea: if keepratio is negative, it triggers the "LindstromTurk placement" policy; otherwise, it uses a mid-point placement policy, by clapsing an edge to its mid-point. so like, negative = one vibe, everything else = the mid-point vibe. 👑

---

🔥 SEE ALSO 🔥

cgalmesh(7), cgalsurf(7), cgalpoly(7), cork(7), meshfix(7), jmeshlib(7)

the whole friend group, go say hi. 🫶✨

---

🎀 AUTHOR 🎀

Qianqian Fang (fangqq@gmail.com), Fernando Cacciola and Andreas Fabri

---

and that's the page!! 💖 version 1.0, dated 30 June 2020, straight from the cgalsimp2 man page. slay, go simplify something, mwah 💋🌈