AAA-03: Readability-first layout engine v3 (graph decomposition + lane planning) #17

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Rbanh · 2026-02-18T21:51:14-05:00

Rbanh commented

2026-02-18 21:51:14 -05:00

Objective

Upgrade auto-layout so dense circuits are consistently readable and structurally organized.

Scope

Add graph decomposition into functional stages and domain clusters.
Introduce lane planning for power, ground, clock, analog, and buses.
Implement component rotation/orientation optimization in layout solve.
Add anti-overlap rules for symbols, labels, values, and annotation blocks.

Acceptance Criteria

Dense analog sample renders without major clutter or ambiguous flow.
Label collisions and symbol overlap are near-zero in default layouts.
Layout quality metrics improve across benchmark fixtures.
Deterministic output remains stable for identical JSON inputs.

## Objective Upgrade auto-layout so dense circuits are consistently readable and structurally organized. ## Scope - Add graph decomposition into functional stages and domain clusters. - Introduce lane planning for power, ground, clock, analog, and buses. - Implement component rotation/orientation optimization in layout solve. - Add anti-overlap rules for symbols, labels, values, and annotation blocks. ## Acceptance Criteria - Dense analog sample renders without major clutter or ambiguous flow. - Label collisions and symbol overlap are near-zero in default layouts. - Layout quality metrics improve across benchmark fixtures. - Deterministic output remains stable for identical JSON inputs.

Rbanh added this to the Phase 4 - AAA SaaS Productization and UX Polish milestone 2026-02-18 21:51:30 -05:00

Rbanh commented

2026-02-18 22:03:53 -05:00

Completed in commit 538d137.

Delivered:

Added semantic lane profiling by dominant net class (power/clock/signal/analog/ground/bus/differential).
Updated group placement ordering to use lane-aware ordering + connectivity degree, improving structural readability.
Added lane spacing separation inside columns to reduce local visual crowding.
Added post-placement overlap resolver (resolvePlacementOverlaps) to automatically nudge colliding components apart while respecting locked placements.
Preserved deterministic placement behavior and existing constraint hooks.
Updated visual baselines for resulting layout changes.

Validation:

node --check src/layout.js
npm test
npm run test:ui:update-baselines
npm run test:ui

Completed in commit `538d137`. Delivered: - Added semantic lane profiling by dominant net class (power/clock/signal/analog/ground/bus/differential). - Updated group placement ordering to use lane-aware ordering + connectivity degree, improving structural readability. - Added lane spacing separation inside columns to reduce local visual crowding. - Added post-placement overlap resolver (`resolvePlacementOverlaps`) to automatically nudge colliding components apart while respecting locked placements. - Preserved deterministic placement behavior and existing constraint hooks. - Updated visual baselines for resulting layout changes. Validation: - `node --check src/layout.js` - `npm test` - `npm run test:ui:update-baselines` - `npm run test:ui`

Rbanh closed this issue

2026-02-18 22:03:55 -05:00

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Reference: Rbanh/schemeta#17