← etc / geometor • etc

changelog¶

0.2.0¶

Added the 4-triangle exact symbolic reference engine (triangles.py) and persistent symbolic evaluation cache (symbolic_cache.py: CenterSymbolicRegistry, SymbolicCenterRecord) over 5, 6, 7, 3, 4, 5, Kepler, and Kimberling triangles.
Expanded ops.py with exact Euclidean construction primitives and CANONICAL_CENTER_CONCORDANCE operators built on geometor.model v0.6.0 targeted DAGs and Rational Trigonometry invariants.
Established the 5-act X_1 Book Codex center template, multi-panel Explorer-styled SVG diagrams (01_primary through 05_four_triangles), exact symbolic HUD metadata, and synchronized videos/x-00001/script.scr studio choreography.
Updated GitHub Actions deployment workflow to install geometor/model before geometor/etc with contents: write permissions.

Replaced generic local point/triangle symbols (A’, B’, C’, X, Y, Z, X’, Y’, Z’, I_aI_bI_c) in enunciations and notes with their canonical special point labels (T_a, T_b, T_c, H_a, H_b, H_c, M_a, M_b, M_c, N_a, N_b, N_c, J_a, J_b, J_c, I_a, I_b, I_c, Tan_a, Tan_b, Tan_c, K_a, K_b, K_c, Sym_a, Sym_b, Sym_c, Eu_a, Eu_b, Eu_c, Ref_a, Ref_b, Ref_c, Cm_a, Cm_b, Cm_c, O_A, O_B, O_C, Nap_a, Nap_b, Nap_c) whenever bound to a known special triangle or vertex triple.
Removed redundant side-by-side (denoted …) and (:g:`A’ <T_a>)` alias annotations from Constructed Elements blocks across all 3,000 center pages.

Expanded coordinate, incidence, and functional relation resolution to X₁ through X₃₀₀₀ (100% resolved across all 4 reference triangles: 5, 6, 7, 3, 4, 5, Kepler, and Kimberling).
Added preamble transformation handlers (Orion transforms, Eigentransforms, Gibert-Simson transforms, Rigby-Simson and Simson-Rigby points, Simson-Moses points, Tangential/Medial/Anticomplementary-Isogonal conjugates, Dual Center DC(X) / CD(X) mappings, and $X_i$-isoconjugates), Steiner inellipse constant $K$, and multi-clause cyclic helper expansion (h(a,b,c), k(a,b,c)).
Added a continuous-limit perturbation pass for removable $0/0$ singularities at $C = 90^circ$ on right and Kepler triangles.
Added 14 new thematic collections (c-02001-02054 through c-02967-03000, bringing the total to 52 thematic collections) with 4-triangle constellation graphics (c-XXXXX-YYYYY.svg).

Expanded coordinate and geometric construction resolution to X₁ through X₂₀₀₀ (100% resolved across all 4 reference triangles: 5, 6, 7, 3, 4, 5, Kepler, and Kimberling).
Added preamble transformation handlers (Saragossa points, Collings transforms, Brisse transforms, Orthojoin points, TCC-perspectors), x:y:z = X_k trilinear coordinate substitutions, and seeded roots (X₁₃₄, X₁₈₀, X₁₁₄₄).
Organized X₁–X₂₀₀₀ into 38 thematic collections (docsrc/centers/c-XXXXX-YYYYY/) aligned with Kimberling’s section preambles and geometric families so docs/centers/index.html loads instantaneously (~54 KB instead of ~30 MB).
Generated multi-center constellation graphics (c-XXXXX-YYYYY.svg across all 4 reference triangles) for each thematic collection using an editorial selection of 11–16 spatially separated landmark centers with interactive hover labels and click-to-navigate center dots.

Standardized triangle center identifiers and references from X_n to subscripted X_n (X₁, X₂, …, rendered as X<sub>n</sub> in HTML and <tspan> subscripts in SVG).
Added contextual A’B’C’ classical triangle resolution in prose so :g: roles bind A’, B’, C’ to their model IDs (M_a, H_a, T_a, I_a, etc.) when constructed on the canvas.
Rendered underscore point labels (M_a, H_a, I_a, X_n) with <tspan> subscripts and font-relative 0.15em strokes in Explorer-styled SVGs.
Redesigned center page headings as two centered lines (X_n over bold non-italic subtitle rubric, with position: absolute headerlink alignment).

Added semantic math normalization and :g: geometric element roles across parsed center descriptions, notes, and glossary entries.

Adopted the Book Codex layout (:layout: book) across docsrc/centers/ and the scholarly apparatus (glossary.rst, persons.rst, bibliography.rst).
Added a 2-track companion switcher (Overview | Code) generating per-center code.rst pages alongside index.rst.
Extracted primary geometric definitions into .. enunciation:: banners (powering collection excerpts and :ref: tooltips) and consolidated primary coordinates into a compact .. signature:: center card.
Organized secondary apparatus into collapsible .. collapse:: sections (Alternate Coordinates, Linear Combinations, Incident Central Lines, and Functional Relations) with count badges.

Simplified initial center graphics into a focused primary construction layer showing only the specific defining geometric relationship (and the golden Euler line whenever $X_n$ lies on the Euler line).
Added a Lines toolbar toggle button to show/hide incident central lines {i, j} and their defining centers across all 4 reference triangle tabs.
Escaped XML special characters (<, >, &) as JSON unicode sequences in embedded SVG metadata so collection page <img> thumbnails pass strict XML validation.
Expanded coordinate/incidence resolution and generated documentation and interactive graphics for X₁ through X₁₀₀₀.

Added interactive Explorer-styled SVG controls (zoom, pan, reset, label/guide toggles) and native topmost element hover highlighting with named points, lines, circles, and triangles.
Scaled point radii and label typography $1.5times$ for legibility.
Unified reference triangle graphics into a 4-tab graphics panel (5, 6, 7, 3, 4, 5, Kepler, and Kimberling) on center pages while keeping static thumbnails on collection pages.
Added projective limit fallback evaluation and coincident point handling for right triangles (3, 4, 5 and Kepler).

Added semantic parser, glossary/person/citation registries, composable triangle construction operators (ops.py), and per-center folders with model.py, x-NNNNN.json, and x-NNNNN.svg.