[pstricks] pst-plot version 1.68 makes my grid gets incomplete

[Donut E. Knot]

Dear folks,

After upgrading my TeX Live, I noticed that my grid which was correct (see the attached Correct-Result.png) becomes incomplete (see the attached Incorrect-Result.png).


The code (after simplification) is as follows,

\documentclass[pstricks,border=0pt,12pt,dvipsnames]{standalone}

\usepackage{pst-plot}

\usepackage[nomessages]{fp}

% THIS BOMBASTIC SETTING IS NOT TRIVIAL !

\FPeval\XMin{0-2*pi}
\FPeval\XMax{2*pi}
\FPeval\YMin{0-pi}
\FPeval\YMax{5*pi/3}

\FPeval\XOL{0-1/3} % of DeltaX
\FPeval\XOR{1/3} % of DeltaX
\FPeval\YOB{0-1/3} % of DeltaY
\FPeval\YOT{1/3} % of DeltaY

\FPset\TrigLabelBase{3}
\FPeval\DeltaX{pi/TrigLabelBase}
\FPeval\DeltaY{pi/TrigLabelBase}

\FPeval\AxisL{XMin+DeltaX*XOL}
\FPeval\AxisR{XMax+DeltaX*XOR}
\FPeval\AxisB{YMin+DeltaY*YOB}
\FPeval\AxisT{YMax+DeltaY*YOT}

\newlength\Width\Width=12cm
\newlength\Height\Height=8cm

\newlength\llx\llx=-5pt
\newlength\urx\urx=15pt
\newlength\lly\lly=-5pt
\newlength\ury\ury=15pt


\psset
{
    llx=\llx,
    lly=\lly,
    urx=\urx,
    ury=\ury,
    xtrigLabels=true,
    ytrigLabels=true,
    trigLabelBase=\TrigLabelBase,
    labelFontSize=\scriptstyle,
    xAxisLabel=$x$,
    yAxisLabel=$y$,
    algebraic,
    plotpoints=500,
}

\def\f{Pi*sin(x)}


\begin{document}

\begin{psgraph}
    [
        dx=\DeltaX,
        dy=\DeltaY,
        linecolor=gray,
        tickcolor=gray,
        ticksize=-3pt 3pt,
        axespos=top,
    ]{<->}(0,0)(\AxisL,\AxisB)(\AxisR,\AxisT){\dimexpr\Width-\urx+\llx}{!}
    \psaxes
    [
        dx=\DeltaX,
        dy=\DeltaY,
        labels=none,
        subticks=5,
        tickwidth=.4pt,
        subtickwidth=.2pt,
        tickcolor=Red!30,
        subtickcolor=ForestGreen!30,
        xticksize=\YMin\space \YMax,
        yticksize=\XMin\space \XMax,
        subticksize=1,
    ](0,0)(\XMin,\YMin)(\XMax,\YMax)
    \psplot[linecolor=NavyBlue]{\XMin}{\XMax}{\f}
\end{psgraph}
\end{document}


The code is also attached to this e-mail (see My-Code.tex).

The bugs are

- The grid  becomes incomplete.
- The attached plot has arrows (that should not) whenever I use arrows for the psgraph.


Thanks.
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