[pstricks] Problem setting up the correct labels

[Frank Gansert]

Hi,


I have a simple problem.
I want a graph starting at -3.5, ending at 0.5 (from left to right) on
both axes and the labels in steps of 1, as -3.5, -2.5, -1.5, -0.5 and
0.5.
Changing the spread from 1 to 0.5 gets me into trouble as I do not
want to increase the size of the picture.

This causes trouble however as the labels I get are: -3.5, -2, -1, 0, 1.
The data, however is shown in respect to the labels as I want them.

Is it, that the 0 as a label has to appear?

Example:
\documentclass{scrartcl}

\usepackage{pst-all}
\usepackage{pstricks-add}

\begin{document}
\begin{figure}
\begin{center}
	\psgraph[Ox=-3.5,Oy=-3.5,Dx=1,Dy=1]{-}(-3.5,-3.5)(-3.5,-3.5)(0.5,0.5){5cm}{5cm}
		\psdots[dotstyle=o, dotsize=6pt](-3.5,-3.5)(0.5,0.5)
		\psdots[dotstyle=*, dotsize=6pt](0,0)
	\endpsgraph
\end{center}
\end{figure}
\end{document}

For me the points (-3.5,-3.5) and (0.5,0.5)  appear at the labels -3.5
and 1, respectively.
The point (0,0) appears at (0.5,0.5).

So the data is at the correct position, but the labels are wrong.


Inverting the axes, in going from 0.5 to -3.5, does not help.
In fact I get the labels 0.5, -0.3, -2, -3, -4.

\documentclass{scrartcl}

\usepackage{pst-all}
\usepackage{pstricks-add}

\begin{document}
\begin{figure}
\begin{center}
	\psgraph[Ox=0.5,Oy=0.5,Dx=-1,Dy=-1]{-}(0.5,0.5)(-3.5,-3.5){5cm}{5cm}
		\psdots[dotstyle=o, dotsize=6pt](-3.5,-3.5)(0.5,0.5)
		\psdots[dotstyle=*, dotsize=6pt](0,0)
	\endpsgraph
\end{center}
\end{figure}
\end{document}

The points appear at the correct position.

Kind regards Frank