Kavrayskiy VII projection
Encyclopedia
The Kavrayskiy VII projection is a map projection
invented by Vladimir V. Kavrayskiy
in 1939 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, 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:
where
is the longitude
and
is the latitude
.
Map projection
A map projection is any method of representing the surface of a sphere or other three-dimensional body on a plane. Map projections are necessary for creating maps. All map projections distort the surface in some fashion...
invented by Vladimir V. Kavrayskiy
Vladimir V. Kavrayskiy
Vladimir Vladimirovich Kavrayskiy was a Soviet geodesist and cartographer.- Scientific research :In 1939, Vladimir V. Kavrayskiy invented the Kavrayskiy VII projection....
in 1939 for use as a general purpose pseudocylindrical projection. Like the Robinson projection
Robinson projection
The Robinson projection is a map projection of a world map, which shows the entire world at once. It was specifically created in an attempt to find a good compromise to the problem of readily showing the whole globe as a flat image....
, 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, 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:
where
is the longitudeLongitude
Longitude is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees, minutes and seconds, and denoted by the Greek letter lambda ....
and
is the latitudeLatitude
In geography, the latitude of a location on the Earth is the angular distance of that location south or north of the Equator. The latitude is an angle, and is usually measured in degrees . The equator has a latitude of 0°, the North pole has a latitude of 90° north , and the South pole has a...
.
External links
- Curvature in Map Projections, quantification of overall distortion in projections.