1 2 3 4 5 6
\begin{pspicture}[showgrid](4,4) \psRing[linecolor=red](2,2)[30,60]{1}{2} \psRing[opacity=0.5,fillstyle=solid, fillcolor=red](2,2)[60,30]{1}{2} \psdot(2,2) \end{pspicture}