nu-Eden: Sundered Skies

PROJECT .NE // STATUS: IN DEVELOPMENT // BUILD: 0.4.3

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.NEL[CCC5]

nu-Edenian Language

CONSTRUCTED LANGUAGE // SPEC: CCC5 // TYPE: ISOLATE // SCRIPTS: KANJI + KANA + HANGUL + ZHUYIN

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EDENIAN TECHLANGUAGE SYSTEMS

nu-Edenian Technical Archive

GLYPH ENGINE, GENERATION LOGIC, DESIGN RATIONALE, AND CCC5 MATERIAL

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kage_system_spec.ne

//KAGE System

This article is about the technical KAGE engine architecture. For , see .

▸Overview

The KAGE (Kanji Automatic Glyph Engine) is a stroke-based vector glyph rendering system ported from JavaScript to TypeScript. It converts stroke data strings into SVG polygon outlines suitable for display on the web.

▸Stroke Data Format

Each stroke is encoded as an 11-tuple:

data_block

type:startOpt:endOpt:x1:y1:x2:y2:x3:y3:x4:y4

Multiple strokes are concatenated with $ delimiters to form complete glyph data:

data_block

1:0:0:10:20:190:20:0:0:0:0$1:0:0:100:10:100:190:0:0:0:0

Stroke Types

Type	Name	Description
1	STRAIGHT	Line from (x1,y1) to (x2,y2)
2	CURVE	Quadratic Bézier with control point
3	BENDING	Two connected straight segments
4	BENDING_ROUND	Rounded bending stroke
6	BEZIER	Cubic Bézier curve
7	VCURVE	Vertical curve with control points
99	REFERENCE	Component reference (buhin lookup)

Start/End Decorations

Start and end options control how stroke terminals are rendered — connecting lines to adjacent strokes, corner treatments, sweep directions, and stop marks.

▸Rendering Pipeline

data_block

Stroke data string
  → Parse (split by $, extract 11-tuples)
  → StrokeData arrays
  → Font renderer (Mincho or Gothic)
  → Polygon outlines
  → SVG path data
  → Inline <svg> element

▸Font Renderers

Mincho (Default)

Variable-width calligraphic renderer (~850 lines). Produces strokes with traditional brush-style decoration:

▪Uroko (鱗) — Fish-scale serifs at stroke ends
▪Kakato (踵) — Heel marks at corners
▪Hane (跳ね) — Upward flicks
▪Mage (曲げ) — Decorative bends

Supports 4 size presets and 5 named weights. The default renderer for all edenji display.

Gothic

Uniform-width stroke renderer. Produces clean, even strokes without calligraphic decoration. Used for technical display, small sizes, and UI elements.

▸Component System (Buhin)

The Buhin (部品) system stores reusable stroke components. When a stroke with type 99 (REFERENCE) is encountered, the engine:

▪Looks up the referenced component name
▪Retrieves its stroke data
▪Applies bounding-box transformation (scale + translate) to fit the reference into the target region
▪Recursively processes the referenced strokes

This enables efficient component reuse — a radical defined once can appear at any size in any layout slot.

▸Coordinate System

All glyph coordinates exist in a 200×200 grid. Stroke positions, control points, and bounding boxes are specified in this coordinate space. The final SVG is scaled to display size.

▸Key Modules

Module	Purpose
`kage.ts`	Main engine class — `makeGlyph`, stroke parsing, buhin resolution
`mincho.ts`	Mincho font renderer with calligraphic decoration
`gothic.ts`	Gothic font renderer with uniform strokes
`polygons.ts`	Polygon collection with SVG generation
`polygon.ts`	Individual polygon path builder
`buhin.ts`	Component storage and lookup
`fontcanvas.ts`	Drawing primitives (~25 geometric operations)
`bezier.ts`	Variable-width Bézier stroke outlines
`fitcurve.ts`	Schneider's least-squares cubic curve fitting
`2d.ts`	Line intersection and crossing detection
`util.ts`	Math utilities, seeded random, hashing
`pointmaker.ts`	Vector/direction helpers for stroke construction
`types.ts`	Core type definitions