Hufnagel XI

Classifications

pseudocylindric
equal-area

Graticule

Meridians: Complex curves. Central meridian is straight and half the length of the equator.
Parallels: Straight parallel lines.
Poles: Points.
Symmetry: About the central meridian and the equator.

Scale

Correct along the 36°20′N/S parallels.

Distortion

Free of distortion only at 36°20′N/S on the central meridian.

Similar projections

Hyperelliptical can be configured similarly, such as:.
Alpha = –0.16, gamma = 1.193, k = 2.7.

Origin

Presented by Herbert Hufnagel, 1989, who devised the base projection to be highly configurable while always yielding equal-area results. Hufnagel detailed many specializations of the base projection. This is one of those specializations, parameterized as follows:.
ψ[max]: 90°.
A: 0.
B: –1/9.
Aspect ratio: ½.

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