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docs: add StereographicUnwrapper + CircleDomainUnwrapper to roadmap

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Audit found that 2 of the 4 Java-port candidates from the conformal-
mapping discussion were missing from the documentation:

* StereographicUnwrapper (266 Java LoC) — projects spherical layout
  S² → ℂ via stereographic projection + Möbius centring.  Closes the
  visualisation gap from discrete_conformal_map_spherical() which
  currently returns Point_3 on S²; downstream uses typically want a
  2-D atlas.  Suggested phase: 10b' (alternative methods, parallel
  to Hyperbolic / Quasi-isothermic).  Effort: small (~3 days).

* CircleDomainUnwrapper (570 Java LoC) — conformal map of a
  multiply-connected planar region onto a disk-with-holes (Koebe's
  general uniformization theorem 1909).  A use-case class
  conformallab++ does not currently cover (annulus, slit torus,
  fluid flow around obstacles, electrostatics with multiple
  conductors).  Suggested phase: 11c.  Effort: large (~2 weeks).

Added to all three roadmap documents:

* doc/roadmap/java-parity.md      — worth-porting table extended
* doc/roadmap/research-track.md   — Java-backlog summary extended
* doc/roadmap/phases.md           — Phase 10b' bullet + new
                                    Phase 11c block with full math
                                    context (Koebe 1909 reference,
                                    classical complex-analysis use cases).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Tarik Moussa
2026-05-22 13:12:22 +02:00
parent b7e837815f
commit ff9c9ec11b
3 changed files with 30 additions and 3 deletions
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2
doc/roadmap/research-track.md
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@@ -294,6 +294,8 @@ These are tracked separately in
| `HyperbolicCyclicFunctional` | 530 | 10b–c | 2 weeks |
| `QuasiisothermicUtility` + `SinConditionApplication` | ~1 200 | 10b | 3 weeks |
| `KoebePolyhedron` | 321 | 10c | 2 weeks |
| `StereographicUnwrapper` | 266 | 10b' (Sphere→ℂ atlas) | small (~3 days) |
| `CircleDomainUnwrapper` | 570 | 11+ (multiply-connected planar regions) | large (~2 weeks) |
| `MobiusCenteringFunctional`, `ElectrostaticSphereFunctional` | 289 + 127 | 10c (optional) | small |
Total identified backlog: ~6 500 Java lines, estimated ~5 months of work