Base

Base is MachineModeling.Connections.Base:
    .doc: """
This is the connection base to use when connecting the TrackSystem to your Vehicle.
Note that there are several Traits that extend this Base so it could be used for
TrackSystem with two or more TrackWheels.

Example:
In the example bellow we assume the four connectors are created in the system
and that we have four TrackWheels.
E.g.
    sprocket is Vehicles.TrackSystem.Components.TrackWheels.Sprocket
    ...

    sprocket_connector is Physics3D.Interactions.RedirectedMateConnector
    ...

    track_system is Vehicles.TrackSystem.Base:
        ...
        track_wheels: [sprocket, idler, road_wheel_1, road_wheel_2]

    tracks_connection is Vehicles.TrackSystem.Connections.Base with Vehicles.TrackSystem.Connections.Traits.FourWheels:
        track_system : track_system_instance
        chassis_connectors: [track_system.sprocket_connector,
                             track_system.idler_connector,
                             track_system.wheel_connector_1
                             track_system.wheel_connector_2]
"""
    hinge_1 is MachineModeling.Connections.Pivot.Hinge:
        from: connectors[0]
        to: track_system.track_wheels[0].center_connector

    connectors is Physics3D.Interactions.MateConnector[]

    track_system is TrackSystem.Base reference