Geographic Information System (GIS) formats enable the storage and exchange of spatial data.
Common Formats:
- GeoJSON: JSON-based format for geographic features
- KML: Keyhole Markup Language used by Google Earth
- WKT: Well-Known Text representation of geometry
- Shapefile: ESRI's format for vector data
- GPX: GPS Exchange Format for waypoints and tracks
Coordinate Systems:
- WGS84: World Geodetic System (GPS standard)
- Web Mercator: Used by most web maps
- UTM: Universal Transverse Mercator