Gauss-Kruger (GK)

The projection name is "gk" for a Gauss-Kruger zone. The zone is specified:

• Explicitly by using then "zone=num" option string

• Implicitly by using the "lon_0=lon" option string, to determine the correct zone from the longitude (lon).

The "zoned" option string will add a False Easting equal to the zone number times 1,000,000 meters.

If units other than meters are used, then the "units=abbr" option is required.

The default ellipsoid is the Krassovsky 1940 ellipsoid. To indicate another ellipsoid, either use the "ellps=abbr" option string for a recognized ellipsoid or define a custom ellipsoid.

Example

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{"Projection", "gk", {"a=6378137", "es=.0066943800229", "zone=2", "zoned"}}

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