Werner projection

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The Werner projection is a pseudoconical equal-area map projection, sometimes called the Stabius-Werner or the Stab-Werner projection. Because it is heart shaped, it is sometimes called a cordiform projection.

Its name is derived from the surnames of two scientists. Johannes Werner (1466 – 1528), a parish priest in Nuremberg, refined and promoted this projection that had been developed earlier by Johannes Stabius (Stab) of Vienna around 1500.

Each point is the correct distance from the north pole so the north-south scale is the same everywhere at the central meridian. Away from the central meridian and the north pole, distances and shapes are distorted.

In a sense the Werner projection wraps the east and west parts of a sinusoidal projection around the north pole. The Bonne and Bottomley projections are intermediate between the Werner and the sinusoidal.

[edit] External links

• Cybergeo article(PDF file)
• Table of examples and properties of all common projections, from radicalcartography.net