- Kavrayskiy VII projection
The Kavrayskiy VII is a
map projection invented by V. V. Kavrayskiy in 1939 ["Flattening the Earth: Two Thousand Years of Map Projections", John P. Snyder, 1993, ISBN 0-226-76747-7.] for use as a general purpose pseudocylindrical projection. Like theRobinson projection , it is a compromise intended to produce good quality maps with low distortion overall. It scores well in that respect compared to other popular projections, such as theWinkel Tripel [" [http://www.physics.drexel.edu/~goldberg/projections/goldberg_gott.pdf Large-Scale Distortions in Map Projections] ", 2007, David M. Goldberg &J. Richard Gott III, 2007, V42 N4.] , despite straight, evenly-spaced parallels and a simple formulation. It has been used in the former Soviet Union but is almost unknown in the Western world.The projection is defined as:
:x = frac{3 lambda}{2pi} sqrt{frac{pi^2}{3} - phi^2}
:y = phi,
where lambda is the
longitude and phi is thelatitude .ee also
*
Cartography
*Wagner VI References
External links
* [http://www.physics.drexel.edu/~goldberg/projections/ Curvature in Map Projections] , quantification of overall distortion in projections.
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