A projection is
|“||a mathematical means of transferring information from the Earth's three-dimensional, curved surface onto a two-dimensional map or computer screen.||”|
|“||[a] method for representing the surface of a sphere or other shape on a flat two-dimensional plane.||”|
- ↑ Geospatial Information and Geographic Information Systems (GIS): An Overview for Congress, at 3.
- ↑ California Technology Agency, Enterprise Architecture Glossary 6 (Apr. 2011) (full-text).