Karttaprojektiojärjestelmät
Karttaprojektiojärjestelmät, often translated as Map Projection Systems, are methods used to represent the spherical surface of the Earth onto a flat two-dimensional map. Since a sphere cannot be perfectly flattened without distortion, all map projections introduce some degree of alteration in shape, area, distance, or direction. The choice of projection system depends on the intended use of the map and the specific distortions that can be tolerated or minimized.
Common types of projections include cylindrical, conical, and azimuthal (or planar) projections. Cylindrical projections, such as
Different projections are designed to preserve certain properties while distorting others. For example, equal-area (or equivalent)