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5 Commits

Author SHA1 Message Date
Tarik Moussa
e04515c423 docs(doxygen): fix critical extraction bug; baseline 24% → 42% on public API
ROOT CAUSE FIX
The Doxyfile EXCLUDE_PATTERNS line contained `*/* 2.hpp` (note the
space — a stray glob from macOS-style "foo 2.hpp" duplicate files).
That pattern was silently matching ALL .hpp / .h files, so Doxygen was
indexing nothing under code/include/.  The pre-existing 556 KB of HTML
output was effectively documenting only README.md, CLAUDE.md and a
small stub for std:: — not the C++ API at all.

After fixing the pattern (and properly escaping the space-prefixed
"foo 2.hpp / foo 2.h" macOS-dup patterns), Doxygen now extracts 141
compounds and emits 248 HTML pages from the public headers.

WHAT THIS PR ADDS
1. Doxyfile fix: correct EXCLUDE_PATTERNS; add GENERATE_XML for the
   coverage measurement script; add MathJax for `$$...$$` math in
   markdown; add the missing CGAL `\cgalParamNBegin/End/Description/
   Default/...` aliases so CGAL-style param blocks render correctly.

2. New headers:
   - code/include/CGAL/Conformal_map/doxygen_groups.h
     defines `PkgConformalMap{,Ref,Concepts,NamedParameters}`,
     resolving 17 prior "non-existing group" warnings.
   - code/include/CGAL/Conformal_map/doxygen_namespaces.h
     gives every namespace under `CGAL::` and `conformallab::` a
     brief description.

3. New tool: scripts/doxygen-coverage.sh
   Parses the XML output and reports % of public symbols (excluding
   the `detail::` implementation namespaces by default) that have a
   non-empty brief/detailed description.  Supports `--list-undoc`
   and `--threshold N` for CI integration.

4. Substantial docstring additions to the public CGAL headers:
   `Conformal_map_traits.h`, `Discrete_circle_packing.h`,
   `Discrete_inversive_distance.h`, `conformal_mesh.hpp`,
   `Discrete_conformal_map.h` (Hyper_ideal_map_result fields).

5. Markdown housekeeping that the strict-warning Doxygen run surfaced:
   tests.md (escape literal `#` in table cell),
   locked-vs-flexible.md (broken section anchor),
   overall_pipeline.md (replace `$$LaTeX$$` with inline-unicode math).

CURRENT NUMBERS

  before:  ~24%  documented (public API; the prior "87%" claim was
                 based on the broken extraction)
  after:    42%  documented   (165 of 396 public symbols)
  warnings: 0   (was 27 spurious + a flood of bogus undocumented
                  warnings hidden by the buggy EXCLUDE pattern)

NEXT (in a follow-up commit on this branch)
The remaining 231 public symbols (mostly in `layout.hpp`,
`hyper_ideal_functional.hpp`, `spherical_functional.hpp`, the per-mode
functional/Hessian files) can be brought to ~100% with another pass of
short `///` brief descriptions.  The coverage script is the gate; CI
can begin enforcing `--threshold 95` once the next pass lands.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-23 23:44:54 +02:00
Tarik Moussa
b0c67af922 ci: auto-publish Doxygen HTML to Codeberg Pages on main
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New .gitea/workflows/doxygen-pages.yml runs on every push to main that
touches the public headers, Doxyfile, the markdown-link filter, any
doc/**/*.md, README.md, or the workflow itself.  It reuses the existing
ci-cpp container image and the existing CODEBERG_TOKEN secret already
used by mirror-to-codeberg.yml — no new secret setup needed.

The job force-pushes an orphan commit to the `pages` branch on
codeberg.org/TMoussa/ConformalLabpp, which Codeberg Pages serves from
https://tmoussa.codeberg.page/ConformalLabpp/ (verified live).

README.md gains a Doxygen badge and a Documentation table row pointing
at the Pages URL.  locked-vs-flexible.md (the reviewer-facing doc) is
updated to mention the Pages URL next to the Doxygen-coverage gap.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-23 23:30:54 +02:00
Tarik Moussa
ba5c9303a3 docs: clean Doxygen warning log (0 warnings) + flag honest gaps to reviewer
Doxygen now builds with **0 warnings** (was 27).

Root cause: `[label](doc/api/tests.md)`-style relative markdown links in
README.md and CLAUDE.md were being interpreted by Doxygen as \ref
commands and failed to resolve (Doxygen indexes .md files by basename,
not by repo-relative path).

Fix: add a per-file `FILTER_PATTERNS` to Doxyfile that rewrites
`[label](path/to/file.md)` into `<a href="path/to/file.md">label</a>`
just for Doxygen.  HTML anchors bypass \ref resolution entirely; the
generated Doxygen HTML still hyperlinks correctly.  The on-disk
markdown is untouched, so GitHub rendering is unaffected.

New file: scripts/doxygen-md-filter.sh (24 lines, documented).

Also: append a "Known limitations (state at the time of the reviewer
meeting)" table to doc/architecture/locked-vs-flexible.md so the
external reviewer sees the 7 deliberate gaps (output_uv_map covers
3 of 5 entries; pipe-only chaining; Phase 9b-analytic derived but not
implemented; Doxygen WARN_IF_UNDOCUMENTED policy; CI test-count gate;
research-track utilities) with effort estimates next to each.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-23 23:19:37 +02:00
Tarik Moussa
039cc26e36 Phase 8b-Lite: pipe-operator chaining for named parameters
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Adds `operator|` in `namespace CGAL` so package-local named parameters
can be combined left-to-right without modifying CGAL upstream:

    auto p = CGAL::parameters::gradient_tolerance(1e-12)
           | CGAL::parameters::max_iterations(500)
           | CGAL::parameters::output_uv_map(uv);
    CGAL::discrete_conformal_map_euclidean(mesh, p);

Why not the canonical `.a().b().c()` syntax
───────────────────────────────────────────
CGAL's standard chaining mechanism requires registering each named
parameter as a member function on `Named_function_parameters` via the
`CGAL_add_named_parameter` macro in
`CGAL/STL_Extension/internal/parameters_interface.h` — a vendored
upstream file that conformallab++ deliberately treats as read-only.

Adding member-function chainers for our package-local tags would
require either forking CGAL or modifying the vendored copy.  Neither
is acceptable for a library that wants to remain portable across
future CGAL releases.

The pipe-operator achieves the same compositional semantics via a
free function in `namespace CGAL` (so ADL finds it for
`Named_function_parameters` operands).  Implementation: rebuild the
right-hand-side `Named_function_parameters` with the left-hand-side
as its `Base`, producing an indistinguishable chain that every entry
function accepts unchanged.

Implementation: `code/include/CGAL/Conformal_map/internal/parameters.h`
lines 158-187.  The operator is constrained to right-hand-sides with
`No_property` base (i.e. fresh single-parameter packs from the helper
functions), so it never collides with any future CGAL operator on the
same type.

Tests (2 new, total Phase-8b-Lite suite 15 → 17)
────────────────────────────────────────────────
* CGALPhase8bLite.NamedParamPipe_MultipleParamsTakeEffect
    Chain three parameters; verify all three take effect (tight
    tolerance respected + UV pmap populated + iteration cap honoured).
* CGALPhase8bLite.NamedParamPipe_TwoParams
    Chain two parameters; verify max_iterations(0) blocks the loop
    even when combined with another param.

Full CGAL suite: 234/234 PASSED, 0 SKIPPED (was 232).
Total: 257/257 PASSED, 0 SKIPPED (was 255).
scripts/check-test-counts.sh: OK.

Documentation updates
─────────────────────
* doc/tutorials/add-output-uv-map.md §3.4: "Current limitation: no
  chaining" → "Chaining: use the pipe operator `|`".  Explains why
  CGAL's `.member()` syntax isn't available and shows the `|`
  workaround with a working code example.
* doc/architecture/locked-vs-flexible.md §8: chaining now flagged as
  shipped via pipe; recommended posture says `.member()` chaining
  only if a user pushes for the CGAL-canonical syntax.
* doc/roadmap/porting-status.md §5: API limitations table updated.
* doc/api/tests.md: CGALPhase8bLite row 15 → 17, total 232 → 234.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-22 13:43:52 +02:00
Tarik Moussa
eb393537f3 docs: 5-document meeting prep — tutorials + research note + status + architecture
External-reviewer-visit prep package (Springborn-Bobenko PhD alumnus,
2026-05-26).  All five documents target the same audience: a
mathematician who wants to evaluate, extend, or contribute to
conformallab++.  Goal: make the project maximally hackable BEFORE the
meeting.  Code unchanged in this commit — pure documentation.

Files added
───────────

1. **doc/tutorials/block-fd-hessian.md** (460 lines)
   Step-by-step tutorial on the per-face block-FD Hessian pattern
   shipped in Phase 9b (96× speed-up).  Matches the style of
   add-inversive-distance.md.  Covers:
   * The per-face locality lemma (mathematical justification).
   * Cost analysis (full-FD vs block-FD vs analytic).
   * Implementation walkthrough through face_angles_from_local_dofs +
     hyper_ideal_hessian_block_fd.
   * Porting checklist for applying the same pattern to a new
     functional.
   * The four cross-validation criteria.
   * When NOT to use block-FD + upgrade path to Phase 9b-analytic.

2. **doc/tutorials/add-output-uv-map.md** (477 lines)
   Tutorial for the `output_uv_map` named-parameter pattern shipped in
   PR #14.  Covers:
   * The UX problem (two-step pipeline → one-call wrapper).
   * The CGAL named-parameter mechanism + how the entry functions
     wire it (get_parameter + constexpr if).
   * Step-by-step recipe for adding a new named parameter (worked
     example: hypothetical `output_holonomy_map`).
   * The five test patterns for verification.
   * Why CP-Euclidean (face-DOF) and Inversive-Distance (Luo-edge-length)
     do not yet support output_uv_map — what is needed to add them.

3. **doc/math/hyperideal-hessian-derivation.md** (805 lines)
   Research-quality LaTeX-formatted derivation of the analytic
   HyperIdeal Hessian via the Schläfli identity (Phase 9b-analytic
   preparation).  Covers:
   * Schläfli identity (1858/60) — gradient and second-order form.
   * Derivatives of ζ, ζ₁₃, ζ₁₄, ζ₁₅ (all hyper-ideal-to-fully-ideal cases).
   * Chain rule for ∂β_i/∂(b,a) and ∂α_ij/∂(b,a) — case-split on the
     four α_ij branches.
   * Per-face 6×6 block formulas.
   * Acceptance criteria for the future implementation.
   * Implementation outline (Conformal_map header sketch).
   * Appendix A: sign / argument-order pitfalls reading the code.
   * References: Schläfli 1858, Milnor 1982, Vinberg 1993, Cho-Kim 1999,
     Rivin, Glickenstein 2011, Springborn 2020, BPS 2015.

4. **doc/roadmap/porting-status.md** (~250 lines)
   Operational snapshot of "where is each piece of Java math today"
   at v0.9.0.  Sections:
   * 25 000 lines of Java in one table (ported / worth porting /
     intentionally skipped breakdown).
   * Five DCE models — full status matrix with Java port status,
     Hessian type, Newton support, CGAL entry, UV-output capability.
   * Topology + solver infrastructure status.
   * CGAL public API map + known limitations (no chaining, Surface_mesh
     only, submission-readiness gaps).
   * Reverse cross-reference: Java class → C++ port location (or
     "skipped: replaced by …" / "in roadmap: phase X").
   * Things in C++ that the Java original does NOT have (research
     extensions track).
   * "How to use the library today" quickstart.

5. **doc/architecture/locked-vs-flexible.md** (~270 lines)
   12-item architecture-decision review with tier classification
   (🔴 load-bearing / 🟡 semi-fixed / 🟢 opportunistic).  Each item
   includes: locked-since date, cost to change, when to revisit,
   recommended posture for new contributors.  Key insight stated up
   front: "the load-bearing decisions are all good in 2026".  Closes
   with five open questions for the external reviewer — items where
   a second opinion would genuinely help (Phase 9c algorithm choice,
   Phase 10a priorities, analytic-Hessian payoff justification,
   CGAL upstream vs independent distribution, geometry-central
   cross-validation).

Total: ~2 250 lines across five new docs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-22 13:38:53 +02:00