Function: cart( )

Syntax

cart(<point>{,<projection>,{,<units>}})

Type

point

Returns

The projection of a longitude/latitude point into Cartesian space.

Parameters

•  <point>
  The point (longitude, latitude) to be projected. The values must be in degrees.

• <projection>
  The cartographic projection to use. If omitted, the current projection mapping is used. If the projection has a supplied datum shift, then <point> is assumed to be based on the WGS84 ellipsoid, otherwise it is assumed to be based on the ellipsoid supplied with the projection.

• <units>
  A string value defining the units for the resulting answer. If this is omitted, the value of the system string units is assumed. This cannot be the value "ll" (long/lat degrees).

Examples

point c = cart((150,-25))

point c = cart((150,-25),amg55)

point c = cart((150,-25),mercator,'km')

See Also