[map projections]
A geometric transformation of the earth's spherical or ellipsoidal surface onto a flat map surface—also known as a developable surface. A projection generally requires a systematic mathematical transformation of the earth's graticule of lines of longitude and latitude onto a plane. Every map projection distorts distance, area, shape, direction, or some combination thereof.
[map projections]
The conversion of a spherical surface (a globe) to a flat map surface using one of many mathematical models.
