Azimuthal Equidistant Projection

Classification: Azimuthal

Available forms: Forward and inverse, spherical and ellipsoidal

Defined area: Global

Alias: aeqd

Domain: 2D

Input type: Geodetic coordinates

Output type: Projected coordinates

Projection String

+proj=aeqd
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Required Parameters

None

Optional Parameters

• guam: Use Guam ellipsoidal formulas (accurate near Guam: $λ ≈ 144.5°$, $φ ≈ 13.5°$)
• lat0: Latitude of origin
• lon0: Longitude of origin
• x0: False easting
• y0: False northing
• ellps: Ellipsoid name
• R: Radius of sphere