A Body is a special Object, which has physical properties such as mass. A localPosition can be measured w.r.t.the reference point of the body
.. toctree:: :maxdepth: 2 ObjectGround.rst ObjectMassPoint.rst ObjectMassPoint2D.rst ObjectMass1D.rst ObjectRotationalMass1D.rst ObjectRigidBody.rst ObjectRigidBody2D.rst