Post by Frantz Maerten

𝐎𝐧𝐞 𝐂++ 𝐥𝐢𝐛𝐫𝐚𝐫𝐲, 𝐟𝐢𝐯𝐞 𝐥𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 — 𝐳𝐞𝐫𝐨 𝐡𝐚𝐧𝐝–𝐰𝐫𝐢𝐭𝐭𝐞𝐧 𝐰𝐫𝐚𝐩𝐩𝐞𝐫𝐬. Today, 𝐫𝐨𝐬𝐞𝐭𝐭𝐚 (built on C++26 reflection, P2996) is used to bind Bruno Lévy's 𝐆𝐞𝐨𝐠𝐫𝐚𝐦 (INRIA) — one of the best geometry-processing libraries out there — to 𝐏𝐲𝐭𝐡𝐨𝐧, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐖𝐞𝐛𝐀𝐬𝐬𝐞𝐦𝐛𝐥𝐲, 𝐋𝐮𝐚 and 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭. The whole binding surface is described in a single manifest.json. Rosetta reflects over 𝐆𝐞𝐨𝐠𝐫𝐚𝐦's own headers and emits the pybind11 / N-API / embind / sol2 projects automatically — without touching a line of 𝐆𝐞𝐨𝐠𝐫𝐚𝐦's source. What's exposed today: • CSG — evaluate OpenSCAD-style programs • Exact boolean operations (union, intersection, difference) • Isotropic CVT remeshing, repair, hole filling • UV-atlas generation (LSCM + xatlas) with texture-coordinate read-back • Co3Ne surface reconstruction from bare point clouds The same demo pipeline runs in every language and prints the same numbers — from a 𝐏𝐲𝐭𝐡𝐨𝐧 𝐝𝐞𝐬𝐤𝐭𝐨𝐩 𝐯𝐢𝐞𝐰𝐞𝐫 remeshing a 55k-triangle model in 0.4 s, to the identical workflow running fully in the 𝐛𝐫𝐨𝐰𝐬𝐞𝐫 𝐯𝐢𝐚 𝐰𝐚𝐬𝐦. The point isn't 𝐆𝐞𝐨𝐠𝐫𝐚𝐦 specifically: it's that with static reflection, multi-language bindings become a build artifact, not a maintenance burden. 🔗 Geogram: https://lnkd.in/eT5iaJuR 🔗 Rosetta: https://lnkd.in/e5jDSTeT 🔗 Geogram-Rosetta: https://lnkd.in/ejKBnUrh #cpp #reflection #geometryprocessing #python #webassembly #lua #node #javascript #opensource #geogram #rosetta