Specifies the type of coordinate system to place. Select one of the following options:
Grids
Uses East, North, and Elevation to define the three coordinate system axes. Coordinate system can only be rotated with respect to the Elevation axis (Z-axis). Naming rules for the elevation and grid plane names generally use E, N, and EL. Grid lines are placed by default.
MHGrids
Uses East, North, and Elevation to define the three coordinate system axes. Coordinate system can be rotated about the East, North, or Elevation axis. Naming rules for the elevation and grid plane names generally use E, N, and EL. Grid lines are placed by default.
Ship
Uses X, Y, and Z to define the three coordinate system axes. Naming rules for the elevation (Z) and grid plane names generally use F, L, and D. Grid lines are not placed by default but can be placed if you want.