void CreatePoint2PointConstraint()
{
cubeRigidBody.LinearFactor = Vector3.Zero;
cubeRigidBody.AngularFactor = Vector3.Zero;
sphereRigidBody.LinearFactor = new Vector3(1, 1, 1);
sphereRigidBody.AngularFactor = new Vector3(1, 1, 1);
currentConstraint = Simulation.CreateConstraint(ConstraintTypes.Point2Point, cubeRigidBody, sphereRigidBody,
Matrix.Identity, Matrix.Translation(new Vector3(4, 0, 0)));
simulation.AddConstraint(currentConstraint);
constraintNameBlock.Text = "Point to Point";
//there are no limits so the sphere will orbit once we apply this
sphereRigidBody.ApplyImpulse(new Vector3(0, 0, 18));
}