Phase 7.5: Doxygen infrastructure + Phase 8 design freeze
Adds the Doxygen documentation pipeline as the bridge from Phase 7
(porting complete) to Phase 8 (CGAL package). Also captures the
strategic Phase 8 decisions taken on 2026-05-19.
Infrastructure
──────────────
* Doxyfile — CGAL-style minimal configuration, HTML-only,
INPUT=code/include + doc/, excludes deps/ and
macOS Finder duplicates
* code/CMakeLists — `doc` target via find_package(Doxygen QUIET);
silently disabled if Doxygen is not installed
* README — `cmake --build build --target doc` instructions
* .gitignore — exclude doc/doxygen/ output
Phase 8 strategic decisions (recorded in doc/api/cgal-package.md)
────────────────────────────────────────────────────────────────
* Submission to CGAL: pre-submission-ready, 12+ months horizon, MIT preserved
* Mesh-type flexibility: generic FaceGraph + HalfedgeGraph
* Parameter style: CGAL Named Parameters
* Default kernel: Simple_cartesian<double> (status quo)
* Architecture: 3-layer wrapper, no algorithm duplication
* Acceptance test: Phase 9a (Inversive-Distance) as first new client
CLAUDE.md updated with a compact Phase 8 decision table.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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CLAUDE.md
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CLAUDE.md
@@ -249,7 +249,23 @@ Expected results: **36 non-CGAL tests pass**, **176 CGAL tests pass, 0 skipped**
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## Release state
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Current release: **v0.7.0** (tag on `origin/dev`, PR to `main` open).
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Phase 7 is complete. Phase 8 (CGAL package) is next.
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Phase 7 is complete. Phase 7.5 (Doxygen) and Phase 8 (CGAL package) are next.
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## Phase 8 strategic decisions (2026-05-19)
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The CGAL-package architecture was frozen on 2026-05-19 after the end-of-Phase-7
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docstring audit. Full design: [`doc/api/cgal-package.md`](doc/api/cgal-package.md).
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Key decisions:
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| Decision | Choice |
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|---|---|
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| Submission to upstream CGAL | **Pre-submission-ready, not bound.** 12+ months horizon. |
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| License | **MIT preserved** (no LGPL switch). |
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| Mesh-type flexibility | **Generic `FaceGraph + HalfedgeGraph`** — Surface_mesh, Polyhedron_3, OpenMesh-adapter, pmp. |
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| Parameter style | **Named Parameters** (`CGAL::parameters::...`). |
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| Default kernel | **`Simple_cartesian<double>`** (status quo). |
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| Backward compatibility | **Dual-layer wrapper** — `code/include/*.hpp` stays as implementation, `include/CGAL/*.h` is thin wrapper. No algorithm duplication. |
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| Phase-8a acceptance test | **Phase 9a (Inversive-Distance)** as the first new client of the new traits API. |
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Root-level files added at v0.7.0:
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- `CITATION.cff` — machine-readable citation (Sechelmann 2016, Springborn 2020, Bobenko–Springborn 2004)
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