A web map is a view over coordinate, query, permission, and interaction contracts. This track follows facility inspections through point validation, tiled viewport changes, nearby search, and optional device location. It preserves a text list when location is denied or tiles fail, and it keeps the server responsible for private facility scope.
Topics in this track
- Coordinate Validation, Projection, and the Antimeridian — Keep latitude, longitude, map projection, and geographic distance in their own units.
- Map Viewport Tiles and Request Lifecycle — Load only visible map work and stop stale requests when the viewport changes.
- Nearby Spatial Search and Tenant Filter — Use indexed candidate selection, exact distance checks, and authorization in one query contract.
- Location Consent, Precision, and Map Alternatives — Ask for device location only when useful and keep a keyboard-ready list route.
Prerequisite paths
Geolocation Accuracy, Cancellation, and Retention; Application Search and Retrieval; Inclusive Interface Engineering.
Practice path
Build Project: authorized facility map and nearby search and check decisions in Web Development: geospatial decisions quiz.