\begin{xy}
% \xyShowAllMarkedPoints{}{\Fname}{\grExt}%
 \xyWARMprocessMoEPS{\Fname}{\grExt}
 \xyMarkedImport{\Fname}
 \xyMarkedPos{U}*+!DL{U}
 \xyMarkedPos{wT}*+!U!L(.4){w_0(T)}
 \xyMarkedPos{h}*++!L{h}
 \xyMarkedPos{p1}*++!LD{p\ne 0}
 \xyMarkedPos{p0}*+!UR{p=0}
 \xyMarkedPos{w0}*+!R{w_0}
\end{xy}