Kavrayskiy VII projection

Kavrayskiy VII projection of the Earth.
The Kavrayskiy VII projection with Tissot's indicatrix of deformation

The Kavrayskiy VII projection is a map projection invented by Vladimir V. Kavrayskiy in 1939[1] for use as a general purpose pseudocylindrical projection. Like the Robinson 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 the Winkel Tripel,[2][3] despite straight, evenly spaced parallels and a simple formulation.

The projection is defined as:

x = \frac{3 \lambda}{2} \sqrt{\frac{1}{3} - \left( \frac{\varphi}{\pi} \right)^2}
y = \varphi\,

where λ is the longitude and φ is the latitude in radians.

See also

References

  1. ↑ Snyder, John P. (1993). Flattening the Earth: Two Thousand Years of Map Projections. Chicago: University of Chicago Press. p. 202. ISBN 0-226-76747-7. Retrieved 2014-11-05.
  2. ↑ Goldberg, David M.; Gott III, J. Richard (2007). "Flexion and Skewness in Map Projections of the Earth" (PDF). Cartographica 42 (4): 297–318. doi:10.3138/carto.42.4.297. Retrieved 2014-11-05.
  3. ↑ Capek, Richard (2001). "Which is the best projection for the world map?". Proceedings of the 20th International Cartographic Conference (Beijing, China) 5: 3084–93. Retrieved 2014-11-05.

External links

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