Geocart Projections

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heart

Parameters: Standard parallel, Meridian duplication factor x >> 0

Description

Heart is a modification of the Bonne projection.

Classifications

Pseudoconic
Equal-area

Graticule

Meridians: Complex curves
Parallels: Complex curves
Poles: Points
Symmetry: Symmetric east-west

Parameters

Standard parallel: An arbitrary latitude that controls how much upward curvature the parallels have.
Meridional duplication factor: An arbitrary parameter that controls the spread of the meridians.

Limiting forms

Werner, when Standard parallel = 90° and meridional duplication factor = 1.

Origin

Developed by Daniel “daan” Strebe (1962–) in 1992.

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