Module shared 

Shared detection back-half plus the geometry-only grid-growth engine.

The topological strategy’s only job is to build connected components; everything after — local component merge (merge), geometric validation (validate), and the per-component lattice fit (fit) — is shared here.

This module also hosts the pattern-agnostic grid-growth primitives and the geometry-only recovery schedule that powers the topological synthesized-axis (Evidence::Positions / Evidence::Oriented1) path:

• grow — the SquareAttachPolicy contract, candidate search, ambiguity resolution, and the per-edge cardinal gate.
• grow_extend / extension / fill — boundary-extension and interior-fill engines built on those primitives.
• recovery_schedule — the RecoverySchedule fixed-point that composes extension + fill + revalidation + drop filters.

A crate-private geometry-first attach policy for synthesized-axis evidence backs the recovery schedule. The undirected-angle helpers it needs live in crate::cluster (the single source of truth for wrap_pi / angular_dist_pi).

The chessboard crate composes grow / fill / extension / grow_extend directly for its own topological recovery path.

Re-exports

pub use recovery_schedule as recovery;

Modules

extension

Boundary extension of a labelled grid via fitted homography.

fill

Post-grow fill pass: interior holes + line extrapolation.

grow

Shared square-lattice growth primitives: candidate search, ambiguity resolution, the per-cell boundary decision, and the SquareAttachPolicy contract.

grow_extend

Cardinal-BFS extension from an existing labelled grid.

merge

Local-geometry-only component merge.

recovery_schedule

Geometry-only post-convergence recovery schedule (advanced tier).

validate

Post-growth validation for a labelled square grid.