27.08.2011
It is not possible to map from a curved surface like a sphere or ellipsoid to a plane
without
distortion.
There are different possibilities for describing the properties and characteristics
of map projections.
- mathematical or geometrical properties:
- extrinsics
(e.g. shape and aspect of the mapping surface)
- intrinsics
(e.g. distortion behaviour as conformity, equal area condition, equidistant lines
...)
- applying map projection methods for
specific purposes (e.g. area of usage
(dimension, position
on the earth, shape of the region...):
- choosing the optimized map projection
parameters covering the needs best