[pstricks] psaxes

[Denis Vergès]

Hello,
I have a big problem with \psaxes :

%%%%%%%%%%%%%%%%%%%With
\psset{xunit=1cm,yunit=.000007cm}
\begin{pspicture}(-1,700000)(10,2500000) 
\psaxes[linewidth=1.5pt,Oy=750000,Dy=250000]{->}(0,750000)
(-1,725000)(10,2500000)
\end{pspicture}
%%%%%%%%%%%%%%%%%% no y-axis

%%%%%%%%%%%%%%%%%%%%%%%%%% With
\psset{xunit=1cm,yunit=.000008cm}
\begin{pspicture}(-1,700000)(10,2500000) 
\psaxes[linewidth=1.5pt,Oy=750000,Dy=250000]{->}(0,750000)
(-1,725000)(10,2500000)
\end{pspicture}
%%%%%%%%%%%%%%%%%%%%%%%%%
the y-axis is toolong.
In fact I want 7cm = 1 750 000 units.
Thanks for help

Denis Vergès