Product Manual

Coordinate Systems Item of the Job Configuration

MAGNET Tools ver 1.0

NOTE: The application supports the following two datums for

projections with NAD-83 as the reference datum:

- NAD83 has the following transformation parameters (shifts,

rotations and scale) to WGS-84 datum:

- NAD83 _NO_TRANS has zero values of transformation

parameters (shifts, rotations and scale) to WGS-84 datum.

See Adding a custom datum to the datum list

• Geoid - displays the current geoid for the opened job. You can

manually select a corresponding geoid type from the geoid list, if

the list contains the given geoid. Also you can add a geoid to the

list (see Adding geoid to the job

). After importing a MAGNET

Field job into the opened job, the geoid which was selected in the

MAGNET Field job will be automatically set as current in the

application job, if the geoid list contains this geoid file.

Note 1: A geoid transforms the ellipsoidal heights measured

by GPS to heights based on a physical reference surface, if

the geoid covers the area where the file’s points are located.

Note 2: The orthometric heights will be equal to ellipsoidal

heights if a geoid file is not downloaded to the application

and/or the geoid does not cover the area where the file’s

points are located.

• Coordinate type

- displays the current type of coordinates of the

opened job. You can select a type from the list: