Create task task-028

backlog/tasks/task-028 - OSM-Canvas-Integration-Foundation.md

@@ -0,0 +1,39 @@
+---
+id: task-028
+title: OSM Canvas Integration Foundation
+status: To Do
+assignee: []
+created_date: '2025-12-04 21:12'
+labels:
+  - feature
+  - mapping
+  - foundation
+dependencies: []
+priority: high
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+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.
+
+Core components:
+- Geographic coordinate system (lat/lng to canvas x/y transforms)
+- OSM tile layer rendering (raster tiles as background)
+- Zoom level handling that respects geographic scale
+- Pan/zoom gestures that work with map context
+- Basic marker/shape placement with geographic coordinates
+- Vector tile support for interactive OSM elements
+
+This is the foundation that task-024 (Route Planning) and other spatial features build upon.
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [ ] #1 OSM raster tiles render as canvas background layer
+- [ ] #2 Coordinate transformation functions (geo ↔ canvas) working accurately
+- [ ] #3 Zoom levels map to appropriate tile zoom levels
+- [ ] #4 Pan/zoom gestures work smoothly with tile loading
+- [ ] #5 Shapes can be placed with lat/lng coordinates
+- [ ] #6 Basic MapLibre GL or Leaflet integration pattern established
+<!-- AC:END -->