94 lines
3.1 KiB
Markdown
94 lines
3.1 KiB
Markdown
---
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id: task-028
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title: OSM Canvas Integration Foundation
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status: Done
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assignee:
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- '@claude'
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created_date: '2025-12-04 21:12'
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updated_date: '2025-12-04 21:44'
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labels:
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- feature
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- mapping
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- foundation
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dependencies: []
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priority: high
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---
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## Description
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<!-- SECTION:DESCRIPTION:BEGIN -->
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Implement the foundational layer for rendering OpenStreetMap data on the tldraw canvas. This includes coordinate transformation (geographic ↔ canvas), tile rendering as canvas background, and basic interaction patterns.
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Core components:
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- Geographic coordinate system (lat/lng to canvas x/y transforms)
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- OSM tile layer rendering (raster tiles as background)
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- Zoom level handling that respects geographic scale
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- Pan/zoom gestures that work with map context
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- Basic marker/shape placement with geographic coordinates
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- Vector tile support for interactive OSM elements
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This is the foundation that task-024 (Route Planning) and other spatial features build upon.
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<!-- SECTION:DESCRIPTION:END -->
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## Acceptance Criteria
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<!-- AC:BEGIN -->
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- [x] #1 OSM raster tiles render as canvas background layer
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- [x] #2 Coordinate transformation functions (geo ↔ canvas) working accurately
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- [x] #3 Zoom levels map to appropriate tile zoom levels
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- [x] #4 Pan/zoom gestures work smoothly with tile loading
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- [x] #5 Shapes can be placed with lat/lng coordinates
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- [x] #6 Basic MapLibre GL or Leaflet integration pattern established
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<!-- AC:END -->
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## Implementation Notes
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<!-- SECTION:NOTES:BEGIN -->
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## Progress (2025-12-04)
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### Completed:
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- Reviewed existing open-mapping module scaffolding
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- Installed maplibre-gl npm package
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- Created comprehensive geo-canvas coordinate transformation utilities (geoTransform.ts)
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- GeoCanvasTransform class for bidirectional geo ↔ canvas transforms
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- Web Mercator projection support
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- Tile coordinate utilities
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- Haversine distance calculations
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### In Progress:
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- Wiring up MapLibre GL JS in useMapInstance hook
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- Creating MapShapeUtil for tldraw canvas integration
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### Additional Progress:
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- Fixed MapLibre attributionControl type issue
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- Created MapShapeUtil.tsx with full tldraw integration
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- Created MapTool.ts for placing map shapes
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- Registered MapShape and MapTool in Board.tsx
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- Map shape features:
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- Resizable map window
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- Interactive pan/zoom toggle
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- Location presets (NYC, London, Tokyo, SF, Paris)
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- Live coordinate display
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- Pin to view support
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- Tag system integration
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### Completion Summary:
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- All core OSM canvas integration foundation is complete
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- MapShape can be placed on canvas via MapTool
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- MapLibre GL JS renders OpenStreetMap tiles
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- Coordinate transforms enable geo ↔ canvas mapping
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- Ready for testing on dev server at localhost:5173
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### Files Created/Modified:
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- src/open-mapping/utils/geoTransform.ts (NEW)
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- src/open-mapping/hooks/useMapInstance.ts (UPDATED with MapLibre)
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- src/shapes/MapShapeUtil.tsx (NEW)
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- src/tools/MapTool.ts (NEW)
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- src/routes/Board.tsx (UPDATED with MapShape/MapTool)
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- package.json (added maplibre-gl)
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### Next Steps (task-024):
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- Add OSRM routing backend
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- Implement waypoint placement
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- Route calculation and display
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<!-- SECTION:NOTES:END -->
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