Augm. Univ. Transverse Mercator
// Specification of Object Reference Model (ORM)
SRM_HORIZONTAL_DATUM_ENUM horizontal_datum
SRM_VERTICAL_DATUM_ENUM vertical_datum
// Specification of Projection Basis
SRM_UINT8 zone // [1 … 60]
// Coordinate System Units
SRM_DISTANCE_UNITS_ENUM z_units // feet or meters
// Origin Displacement of Coordinate System
SRM_FLOAT64 x_offset // origin relative displacement in X
SRM_FLOAT64 y_offset // origin relative displacement in Y
SRM_HEMISPHERE_ENUM hemisphere
SRM_FLOAT64 x // meters; positive eastward
SRM_FLOAT64 y // meters; positive northward
SRM_FLOAT64 z // Elevation or height; positive along XY surface normal