[pstricks] axes labels missing

[Herbert Voss]

Markus schrieb:

> Without any warning the labels disappeared. But only for y and z and 
> negative x. Looks strange.
> 
> \listfiles
> \documentclass{article}
> \usepackage{pst-3dplot,pstricks-add}
> \begin{document}
> 
> \centering
> \begin{pspicture}(-8,-8)(8,8)
> \pstThreeDCoor[xMin=-6,yMin=-9,zMin=-1,
>                 xMax=10,yMax=8,zMax=12,
>                 nameX=$x_1$,nameY=$x_2$,nameZ=$x_3$,
>                 IIIDticks=true,IIIDxticksep=-1,

                  IIIDlabels,

>                 ,linewidth=1pt,drawing=true,linecolor=black]
> \end{pspicture}
> \end{document}


there was a missing \if for the positive x labels, the reason why
it was printed without a IIIDlabels.

Herbert