Feature
Offline maps are not screenshots. They are a field decision tool.
YuanShan uses offline vector maps as the base layer for current position, teammate positions, tracks, routes, and elevation context in the same decision surface.
Design goals
- Stay usable with no internet.
- Support terrain, route, track, and teammate overlays.
- Clearly distinguish current position from last trusted position.
Searchable topic signals
Offline map download, vector map packs, field team map sharing, last trusted position, track replay, elevation context, and no-signal navigation.