On 26.11.2008, at 11:15, Georg Pacher wrote: > Good idea, yet I forgot to mention that the outer line should be > thicker (like a wall), than the inner line (pit). An 'asymmetric > pen' could solve that, but I dont know if that is possible...
I'm affraid that this is unpossible in MetaPost - PostScript use only the central line on path. Maybe somebody else knows another trick. m.
