CoordinateAxis 
A class representing a coordinate system axis within the NWU coordinate system.

CoordinateSystem 
A helper class that converts Pose3d objects between different standard coordinate frames.

Pose2d 
Represents a 2D pose containing translational and rotational elements.

Pose3d 
Represents a 3D pose containing translational and rotational elements.

Quaternion 

Rotation2d 
A rotation in a 2D coordinate frame represented by a point on the unit circle (cosine and sine).

Rotation3d 
A rotation in a 3D coordinate frame represented by a quaternion.

Transform2d 
Represents a transformation for a Pose2d in the pose's frame.

Transform3d 
Represents a transformation for a Pose3d in the pose's frame.

Translation2d 
Represents a translation in 2D space.

Translation3d 
Represents a translation in 3D space.

Twist2d 
A change in distance along a 2D arc since the last pose update.

Twist3d 
A change in distance along a 3D arc since the last pose update.
