We cannot help you with your physics engine: but see the tutorials for attaching simple portrayals to the ContinuousPortrayal2D. Sean Tehseen Zia wrote: > Dear all, > > I want to attach SimplePortrayal2D object within the physics engine with > ContinuousPortrayal2D. > > Thanks in advance. > > > > .............................................................. > > **Tehseen Zia** > > PhD Student > > Institute of Computer Technology(ICT) > > Technical University of Vienna(TU-Wien) > > Gusshausstrasse 27-29/384, 1040 Vienna, > > Austria > > Tel:+43-1-58801-38431 > > Fax:+43 1 58801 38499 > > [log in to unmask] <mailto:[log in to unmask]> > > ................................................................. > > >