jared
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- Add project constitution with vision, principles, and autonomy settings - Add 15 feature specifications covering full app scope - Configure agent entry points (AGENTS.md, CLAUDE.md) - Add build prompt and speckit command for spec creation - Include comprehensive .gitignore for iOS development Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
31 lines
1.3 KiB
Markdown
31 lines
1.3 KiB
Markdown
# Contour Service
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## Description
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Service for detecting and scoring wire/line contours from Vision results.
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## Acceptance Criteria
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- [ ] `ContourService` class with methods:
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- `func findBestWireContour(at point: CGPoint, from contours: [VNContour]) -> VNContour?`
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- `func scoreContour(_ contour: VNContour, relativeTo point: CGPoint) -> Float`
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- `func contourToMask(_ contour: VNContour, width: Int, imageSize: CGSize) -> CGImage`
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- [ ] Contour scoring considers:
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- Proximity to tap point (closer = higher score)
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- Aspect ratio (thin and elongated = higher score)
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- Straightness / low curvature (straighter = higher score)
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- Length (longer = higher score)
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- [ ] Configurable mask width: default 6px, range 2-20px
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- [ ] Returns `nil` when no wire-like contour found near tap
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- [ ] Unit tests for contour scoring logic
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## Technical Notes
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- VNContour provides normalized path points
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- Calculate curvature by analyzing angle changes along path
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- Aspect ratio = length / average width
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- Weight scoring factors: proximity (0.3), aspect (0.3), straightness (0.2), length (0.2)
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## Edge Cases
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- No contours detected: return nil
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- All contours score below threshold: return nil
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- Curved wires: allow moderate curvature, don't require perfectly straight
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- Contour very close to tap but not wire-like: score should be low
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