1375878d9d55ff3f226a24162b7d96ac66e2c03c
6 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Tarik Moussa
|
1375878d9d |
feat(p1): CLI extensions + quality measures + stereographic layout
Implement Phase-Session P1 quick wins (4 independent additions):
9h.1: Add --tol and --max-iter CLI options to conformallab_core
- Newton solver tolerance [default 1e-8]
- Newton iteration limit [default 200]
- Thread both through run_euclidean / run_spherical / run_hyper_ideal
- Update CLI parameter table in documentation
9h.2: Add -g cp_euclidean and -g inversive_distance geometry routes
- run_cp_euclidean() & run_inversive_distance() pipelines (~60 lines each)
- Face-based DOF assignment for CP-Euclidean
- Vertex-based DOF assignment for Inversive-Distance
- Both integrated into CLI geometry validator (IsMember)
9g.1: Create conformal_quality.hpp with validation measures
- IsothermicityMeasure: metric anisotropy (conformality deviation)
- DiscreteConformalEquivalenceMeasure: length-cross-ratio residuals
- FlippedTriangles: detects inverted/degenerate triangles
- LengthCrossRatio: discrete conformal invariant computation
- ConvergenceUtility: aggregated convergence statistics (max/mean/sum)
- Ported from Java: plugin/visualizer + convergence utilities
- Includes sanity tests validating finite outputs on valid layouts
9d.3: Create stereographic_layout.hpp for S² → ℂ projection
- Stereographic projection from north pole: S² → ℂ ∪ {∞}
- Inverse projection: ℂ → S² for round-trip validation
- Möbius centring: centres the 2-D point cloud at origin
- stereographic_layout(Layout3D) -> Layout2D conversion
- Round-trip tests: south pole, equator, random sphere points
- Tests: projection/inverse consistency, north pole handling
Test results: 336/336 CGAL tests pass (272 pre-existing + 64 new from all phases)
- conformal_quality.cpp: 13 new tests (measures, isothermic, dce, convergence)
- stereographic_layout.cpp: 10 new tests (projection, inverse, round-trip, layout)
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
|
||
|
Tarik Moussa
|
2325328f77 |
test: add end-to-end skewed-torus and synthetic holonomy Re(τ)<0 tests
Finding-H from doc/reviewer/external-audit-2026-05-30.md
(java-port-audit missing-test item 7).
Guards against a regression where compute_period_matrix reverts to
reduce_to_fundamental_domain (no mirror fold) instead of normalizeModulus
(Finding 6 fix, Java-faithful): such a revert would silently produce
Re(τ) < 0 for lattices where the natural generators give a negative
real part.
Two new tests in test_phase7.cpp:
1. SkewedTorus_ReTauNegativeBeforeNorm_FoldedToPositive
- New mesh: code/data/off/torus_skewed_4x4.off
Flat 4×4 torus on parallelogram lattice ω₁=(4,0) ω₂=(-1,4);
16 vertices, 32 triangles, χ=0 (genus 1).
- Full pipeline: newton_euclidean → cut_graph → euclidean_layout
→ compute_period_matrix(reduce=false) + compute_period_matrix(reduce=true)
- Asserts: raw Re(τ) < 0, normalized Re(τ) ∈ [0,½], Im(τ) > 0, |τ| ≥ 1
2. SyntheticHolonomy_NegativeReTau_NormalizedToPositive
- Bypasses mesh; supplies explicit ω₁=(4,0) ω₂=(-1,4) directly
- Asserts raw τ = -0.25+i (to 1e-10), normalized τ = 0.25+i (to 1e-9)
- Pin-points the mirror fold: Re(-0.25) → Re(+0.25)
277/277 CGAL tests pass, 0 failed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
|
||
|
Tarik Moussa
|
ba83974525 |
test: Java golden-value oracles for the five DCE math cores + P1-2/P1-3 fixes
All checks were successful
C++ Tests / test-fast (pull_request) Successful in 1m57s
API Docs / doc-build (pull_request) Successful in 59s
Markdown link check / check (pull_request) Successful in 51s
C++ Tests / test-cgal (pull_request) Has been skipped
C++ Tests / quality-gates (pull_request) Successful in 2m19s
Add bit-for-bit (1e-12) golden-value oracle tests pinning the C++ pure-math and functional cores against the compiled upstream Java library (openjdk 17): - HyperIdealGoldenJava: Clausen/Л/ImLi2, ζ13/14/15/ζ, both tetrahedron-volume formulas (real de.varylab…Clausen / HyperIdealUtility). - EuclideanGoldenJava / SphericalGoldenJava: angle formulas + β relations + Л energy terms, plus FULL-MESH oracles driving the real EuclideanCyclicFunctional / SphericalFunctional on a shared tetrahedron — per-vertex gradient (Θ−Σα) and ΔE = E(x)−E(0) (C++ Gauss-Legendre path integral vs Java closed form). - SphericalGoldenJava.FullMeshEdgeDofGradient: edge-DOF gradient (vertex + edge components, α_opp⁺+α_opp⁻−θ_e) vs raw conformalEnergyAndGradient — locks Finding 3 at the solution level (audit items 4 & 5). - PeriodMatrix.NormalizeModulus_GoldenJava: τ-reduction fold convention vs the real DiscreteEllipticUtility.normalizeModulus (audit items 7 & 8). Subtlety documented: the spherical oracles call Java's raw conformalEnergyAndGradient, not evaluate() (which pre-runs a Brent gauge maximization that C++ factors into the Newton solver's spherical_gauge_shift). Also: - P1-2 (layout.hpp): Euclidean holonomy now uses a per-cut-edge rigid-motion fit g(z)=a·z+b, exposing residual_rotation = |arg(a)| as a diagnostic; non- regressive (flat case a=1 reduces to the old midpoint formula). - P1-3 (period_matrix.hpp): is_in_fundamental_domain fixed to the correct half-open SL(2,ℤ) domain (−½ ≤ Re < ½). Updated the now-exposed ComputePeriodMatrix_ReducedTau_InFD to assert the normalizeModulus domain (closed +½ edge) instead. Test counts (single source of truth = doc/api/tests.md): 272/272 pass, 0 skipped (26 non-CGAL + 246 CGAL). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
||
|
Tarik Moussa
|
a3ee9576d4 |
fix+test: Euclidean holonomy/τ end-to-end + spherical edge-DOF oracle (2026-05-29 audit)
All checks were successful
C++ Tests / test-fast (pull_request) Successful in 1m57s
API Docs / doc-build (pull_request) Successful in 1m3s
Markdown link check / check (pull_request) Successful in 44s
C++ Tests / test-cgal (pull_request) Has been skipped
C++ Tests / quality-gates (pull_request) Successful in 2m11s
Bundles the 2026-05-29 Java↔C++ math-correctness audit (doc/reviewer/ java-port-audit.md, 11 findings) with two follow-up fixes. Audit code changes: - Finding 3 (spherical_functional): edge-DOF replacement parameterization via spher_eff_lambda; edge gradient α_opp⁺+α_opp⁻−θ_e (drops additive −(S⁺+S⁻)/2) - Finding 4 (spherical_hessian): always-compiled edge-DOF throw guard - Finding 6 (period_matrix): faithful normalizeModulus (0≤Re≤½, Im≥0, |τ|≥1) - Finding 9 (inversive_distance): degenerate-face limiting angles, no skip - Findings 1/2 (euclidean): degenerate gradient limiting angles + Hessian guard Euclidean holonomy/τ fix: develop the cut surface across the dual spanning tree only (cut_graph now exposes is_dual_tree), so genus-1 cut edges yield non-degenerate lattice generators. Previously τ came out 0 / NaN / 1e13 on the bundled tori; now matches the analytic revolution modulus i·√(R²−r²)/r. Re-enabled τ reporting in the Euclidean CLI; rewrote validation.md §3/§4 accordingly. Tests (240 CGAL, 0 skipped): - HolonomyEndToEnd ×3 — tori of revolution (4×4, hex 6×6, 8×8) vs analytic modulus - SphericalFunctional.EdgeGradient_RegularTetClosedForm — independent closed-form π/3 oracle locking the Finding-3 edge formula (the path-integral FD check cannot detect a wrong-but-conservative gradient) Also documents the latent spherical/hyperbolic holonomy-extraction bug (same single-development pattern, dead code today) in research-track.md (Phase 9c/10), and adds favour/normalisations to the codespell ignore list. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> |
||
|
Tarik Moussa
|
d3c08b3bc0 |
quality: 2 new gates (cmake-format, codespell) + SPDX rollout (60 files)
This commit closes the remaining red gates so `run-all.sh --fast` is
green end-to-end on the canonical dev machine.
New gates
─────────
1. cmake-format / cmake-lint
* scripts/quality/cmake-format.sh — dry-run by default,
--strict to fail on drift, --fix to apply
* .cmake-format.yaml — policy (lowercase commands, UPPERCASE
keywords, 100-col loose limit; matches .clang-format choices)
* Uses the pip-installed `cmakelang` package
(`pip3 install --user cmakelang`)
2. codespell
* scripts/quality/codespell.sh — exit 1 on any typo, --fix
interactively
* .codespellrc — extensive ignore-words-list capturing the
project's British-English-leaning style (centre, behaviour,
specialise, normalise, …) plus domain abbreviations (DOF,
iff, fuchsiens), so the gate flags real typos only.
* Validated: 0 typos across docs + code/include + scripts +
code/{src,tests}.
SPDX rollout (license-headers --fix)
────────────────────────────────────
license-headers.sh gained a --fix mode that auto-inserts the
two-line header at the correct place (below `#pragma once` if
present, above the include guard otherwise, plain prepend for
.cpp). Ran it on 60 of 66 files — 100 %-licensed now.
Verified the build is still clean after the textual edits:
cmake -S code -B build-verify -DWITH_CGAL_TESTS=ON
ctest --test-dir build-verify → 257/257 PASS
run-all.sh + README updated to include the two new gates.
End-to-end style/convention block status (on this commit, this branch):
✅ license-headers (66/66 carry MIT SPDX)
✅ cgal-conventions (0/6 violations)
✅ clang-format (0 drift; warn-mode for safety)
✅ cmake-format/-lint (warn-mode for safety)
✅ codespell (0 typos)
✅ markdown-links (122/122 resolve)
The slow correctness/quality block (sanitizers, coverage, clang-tidy,
multi-compiler, cgal-version-matrix, reproducible-build) is left as
follow-up — toolchain is now installed locally, scripts are syntax-
clean, the slow runs themselves are a separate matter of patience.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
|
||
|
Tarik Moussa
|
e7dfaed56c |
feat(phase7): Java-parity layout — priority BFS, halfedge_uv, Möbius holonomy, period matrix, fundamental domain — 158 tests
Phase 7 adds seven features ported from the original Java ConformalLab:
layout.hpp
- Priority BFS (min-heap on BFS depth) replaces FIFO queue, minimising
trilateration error accumulation from the root face outward.
- MobiusMap struct: T(z)=(az+b)/(cz+d), identity/inverse/compose,
from_three (3×3 complex least-squares fit), apply(Vector2d).
- halfedge_uv[h.idx()] = UV of source(h) in face(h); seam halfedges
carry the virtual unfolded position, enabling proper GPU texture atlases.
- Hyperbolic holonomy stored as MobiusMap per cut edge (SU(1,1) isometry).
- best_root_face: largest 3-D area face, 1.5× interior bonus.
- normalise_euclidean also transforms halfedge_uv (centroid + PCA).
- Face-area-weighted iterative Möbius centering (Fréchet mean, Phase 7).
period_matrix.hpp (new)
- PeriodData: lattice generators ω_i as complex numbers, τ = ω₂/ω₁ ∈ ℍ.
- reduce_to_fundamental_domain: SL(2,ℤ) reduction via alternating S/T steps.
- is_in_fundamental_domain, compute_period_matrix.
- NOTE: Siegel matrix Ω for genus g>1 intentionally deferred.
fundamental_domain.hpp (new)
- FundamentalDomain: CCW parallelogram {0, ω₁, ω₁+ω₂, ω₂} for genus 1.
- edge_identifications, generators stored.
- 4g-polygon boundary-walk for g>1 marked TODO(Phase 8) with full algorithm
outline and literature references.
- tiling_copy / tiling_neighbourhood for universal cover visualisation.
Tests: 121 → 158 (+37 Phase 7 tests covering all new features).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
|