Leica GPS1200+ Technical Reference Manual page 286

CSCS field file
Manage...\Coordinate Systems
of CSCS models are supported by GPS1200+. Their conversion process is as explained in
the following table. Any suitable geoid model can be combined with a geodetic CSCS model.
Refer to the online help of LGO for more information on CSCS models.
Type Description
Grid 1. Determination of preliminary grid coordinates by applying the specified
transformation, ellipsoid and map projection.
2. Determination of the final local grid coordinates by applying a shift in
Easting and Northing interpolated in the grid file of the CSCS model.
Cartesian 1. Performing the specified transformation.
2. Determination of local cartesian coordinates by applying a 3D shift inter-
polated in the grid file of the CSCS model.
3. Determination of the final local grid coordinates by applying the specified
local ellipsoid and map projection.
Geodetic 1. Determination of local geodetic coordinates by applying a correction in
latitude and longitude interpolated from the file of the CSCS model.
2. Determination of the final local grid coordinates by applying the local
map projection.
Using a geodetic CSCS model excludes the use of a transformation in
a coordinate system.
CSCS field files may be used in the field. They are extracted from the main CSCS model,
which may be too big to fit on the instrument.
GPS1200+ 286