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trails/openspec/changes/osm-overlays/specs/map-display/spec.md
Ullrich Schäfer 0a330e4466
Break up route-features into focused specs, add new changes 
Archive the monolithic route-features spec and replace with 9 focused
OpenSpec changes: multi-day-routes, waypoint-notes (with POI snapping),
undo-redo, local-dev-stack, route-sharing, route-discovery,
activity-photos, osm-overlays, plus the existing changelog and
komoot-import.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 09:53:41 +02:00

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MODIFIED Requirements

Requirement: Base layer switching

The map SHALL support switching between multiple base tile layers, and SHALL support toggling overlay tile layers independently.

Scenario: Switch to OpenTopoMap

  • WHEN a user selects "OpenTopoMap" from the layer switcher
  • THEN the map tiles change to topographic tiles from OpenTopoMap

Scenario: Available base layers

  • WHEN a user opens the layer switcher
  • THEN the options include OpenStreetMap, OpenTopoMap, and CyclOSM

Scenario: Available overlay layers

  • WHEN a user opens the layer switcher
  • THEN overlay checkboxes are shown for Hillshading, Cycling Routes, Hiking Routes, and MTB Routes

Scenario: Toggle overlay

  • WHEN a user checks an overlay checkbox in the layer switcher
  • THEN the overlay tiles are rendered on top of the current base layer