Color change finish lock stitches now look FORWARD (Loop C) instead of
backward, aligning the knot with the stop event data for correct tension
when the machine halts for thread color changes.
Lock stitch direction breakdown:
- Loop A (Jump/Entry): Look forward - hides knot under upcoming stitches
- Loop B (End/Cut): Look backward - hides knot inside previous stitches
- Loop C (Color Change): Look forward - aligns with stop event data
Added detailed comments documenting which loop corresponds to each
lock stitch location in the code.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Change let to const for variables that are never reassigned
- Fix React Hook dependency array warnings in useBrotherMachine
- Remove unused refreshPatternInfo dependency from uploadPattern
- Add missing refreshPatternInfo dependency to startMaskTrace
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- 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>
