 27.08.2011
27.08.2011It 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