Werner projection

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Werner projection of the world Werner projection SW.jpg
Werner projection of the world
Woodcut from 1536 by Oronce Fine showing the Werner projection Map-heart-054.jpg
Woodcut from 1536 by Oronce Finé showing the Werner projection

The Werner projection is a pseudoconic equal-area map projection sometimes called the Stab-Werner or Stabius-Werner projection. Like other heart-shaped projections, it is also categorized as cordiform. Stab-Werner refers to two originators: Johannes Werner (14661528), a parish priest in Nuremberg, refined and promoted this projection that had been developed earlier by Johannes Stabius (Stab) of Vienna around 1500.

Contents

The projection is a limiting form of the Bonne projection, having its standard parallel at one of the poles (90°N/S). [1] [2] Distances along each parallel and along the central meridian are correct, as are all distances from the north pole.

See also

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Johannes Werner German mathematician

Johann(es) Werner was a German mathematician. He was born in Nuremberg, Germany, where he became a parish priest. His primary work was in astronomy, mathematics, and geography, although he was also considered a skilled instrument maker.

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Bonne projection map projection

The Bonne projection is a pseudoconical equal-area map projection, sometimes called a dépôt de la guerre, modified Flamsteed, or a Sylvanus projection. Although named after Rigobert Bonne (1727–1795), the projection was in use prior to his birth, in 1511 by Sylvano, Honter in 1561, De l'Isle before 1700 and Coronelli in 1696. Both Sylvano and Honter's usages were approximate, however, and it is not clear they intended to be the same projection.

Lambert cylindrical equal-area projection

In cartography, the Lambert cylindrical equal-area projection, or Lambert cylindrical projection, is a cylindrical equal-area projection. This projection is undistorted along the equator, which is its standard parallel, but distortion increases rapidly towards the poles. Like any cylindrical projection, it stretches parallels increasingly away from the equator. The poles accrue infinite distortion, becoming lines instead of points.

Johannes Stabius (1450–1522) was an Austrian cartographer of Vienna who developed, around 1500, the heart-shape (cordiform) projection map later developed further by Johannes Werner. It is called the Werner map projection, but also the Stabius-Werner or the Stab-Werner projection.

Werner may refer to:

Loximuthal projection

In cartography, the loximuthal projection is a map projection introduced by Karl Siemon in 1935, and independently in 1966 by Waldo R. Tobler, who named it. It is characterized by the fact that loxodromes from one chosen central point are shown straight lines, correct in azimuth from the center, and are "true to scale" in the sense that distances measured along such lines are proportional to lengths of the corresponding rhumb lines on the surface of the earth. It is neither an equal-area projection nor conformal.

References

  1. Snyder, John P (1993), Flattening the Earth: Two Thousand Years of Map Projections, pp. 60–2, ISBN   0-226-76747-7 .
  2. (1987), "Map Projections—A Working Manual", Professional Paper, United States Geological Survey, pp. 138–0.