BREP_RANSAC

BREP_RANSAC is the kernel-free analytic recognition leaf prepared for the BREP repository. Its Rust library target is brep_ransac.

It recognizes plane, cylinder, cone, sphere, and torus carriers in neutral indexed triangle meshes. It supports generic recognition, known-type fitting, initial guesses, constrained fitting, and exact-candidate validation. Results contain neutral carrier parameters, support IDs, residuals, observability, confidence evidence, and diagnostics; they contain no BREP topology.

Build and test it independently from the repository root:

cargo test --manifest-path BREP_RANSAC/Cargo.toml

The main entry points are recognize_surfaces and recognize_surfaces_with_unresolved for mesh-wide recognition, plus reconstruct_surface / reconstruct_surface_from_vertices for a selected support. synthetic supplies generated test geometry, and export_debug_obj writes recognition debug geometry.

The package is publishable and versioned 0.1.0, not yet released. Its explicit include list packages source, integration tests, benchmarks, examples, the manifest, README, and license; corpora, caches, oracle tools, generated results, and repository-level validation infrastructure are excluded. The 30 packaged files were read line by line and the extracted tarball compiles — the shipped tests are self-contained, with no fixture read among them. Its only runtime dependency is serde; criterion and serde_json are development dependencies.