- Add lock stitch rotation based on movement direction (matches C# PesxToPen.cs)
- Calculate direction by accumulating vectors up to 5 stitches or 8.0 units
- Scale direction vectors from magnitude 8.0 down to 0.4 for proper lock stitch size
- Generate 8 lock stitches (not 4) alternating between +dir and -dir
- Remove PyStitch duplicate position stitches during color changes
- Add long jump detection with automatic lock stitches and cut commands
- Improve color change sequence: finish locks, cut, jump, COLOR_END, start locks
- Parse PEN data to get actual stitches for rendering (fixes jump stitch colors)
- Add encodeStitchPosition() helper function for coordinate encoding
- Improve pattern info refresh timing after mask trace
- Add detailed logging for PEN encoding and pattern info responses
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit addresses multiple critical issues in pattern rendering and coordinate handling:
1. Fixed Y-axis offset accumulation in penParser.ts
- Corrected sign extension logic for 16-bit signed coordinates
- Changed to interpret full 16-bit value as signed before shifting
- Prevents coordinate drift and offset accumulation
2. Fixed color assignment for tack stitches in patternConverter.worker.ts
- Added detection for small finishing stitches after COLOR_CHANGE commands
- Assigns tack stitches to correct (previous) color instead of new color
- Uses conservative pattern matching (< 1.0 unit, followed by JUMP)
3. Made jump stitches visible in pattern preview (KonvaComponents.tsx)
- Render jump stitches in thread color instead of gray
- Use dashed pattern [8, 4] to distinguish from regular stitches
- Set appropriate opacity (0.8 completed, 0.5 not completed)
- Fixed critical bug: include previous position in jump groups to create proper line segments
4. Updated konvaRenderers.ts for consistency
- Applied same jump stitch rendering logic
- Ensures consistent behavior across rendering methods
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Move Pyodide/PyStitch pattern conversion to a dedicated Web Worker for
non-blocking UI performance. Pyodide now loads in the background on app
startup with real-time progress indicator showing download and initialization
status.
Key changes:
- Create patternConverter.worker.ts with full PES to PEN conversion logic
- Add patternConverterClient.ts singleton for worker management
- Implement progress tracking (0-100%) with step descriptions
- Add inline progress bar in FileUpload component with contextual messaging
- Configure COEP headers for Electron to support Web Workers
- Pass dynamic asset URLs to worker for file:// protocol support
- Update UIStore with progress state management
- Simplify pystitchConverter.ts to delegate to worker client
Benefits:
- Truly non-blocking UI (heavy Python/WASM runs off main thread)
- Real progress feedback during 15MB Pyodide download
- Works in both browser and Electron (dev and production)
- Faster app startup perception with background loading
- Better UX with "waiting" state if user clicks before ready
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
