[pstricks] \pscustom | pst-3dplot

[robert.fischer10 at arcor.de]

Hello,

I have tried to draw a section of a sphere. This section should be filled similar to the example in pst-3dplot-doc.pdf for ellipsoid by using \pscustom. But something went wrong and I do not know why... Maybe only a simple mistake by me...

Minimal Example:

\documentclass{minimal}
\usepackage{xkeyval}
\usepackage{pst-pdf}
\usepackage{pst-3dplot}
	\begin{minipage}{0.49\textwidth}
		%Basic Definitions
		\def\MyCenter{0 }%decrease it e.g. to -8 to make surface bigger
		\def\MyRad{\MyCenter -1 mul 2 add }
		\def\MyCI{30 sin \MyRad mul }
		\def\MyRI{30 cos \MyRad mul }
		\def\MyCII{15 sin \MyRad mul }
		\def\MyRII{15 cos \MyRad mul }
		\psset{coorType=2}
		\begin{pspicture}(-3,-3)(5.5,4)
			\psgrid[gridcolor=gray,subgridcolor=lightgray]
			%Axes
			\pstThreeDCoor[linecolor=black,IIIDticks=none,
				arrowinset=0,arrowscale=1.5,
				xMin=0,yMin=0,zMin=0,
				xMax=5,yMax=5,zMax=3,
				nameX=$x$,nameY=$y$,nameZ=$u$]%
			\pscustom[fillstyle=solid,fillcolor=lightgray]{
			\pstThreeDCircle[beginAngle=0,endAngle=30,arrows=->
				](\MyCI,0,\MyCenter)(0,0,\MyRI)(0,\MyRI,0)
			\pstThreeDCircle[SphericalCoor,
				beginAngle=60,endAngle=90,arrows=->
				](\MyCenter,0,90)(\MyRad,0,0)(\MyRad,90,60)
			\pstThreeDCircle[beginAngle=30,endAngle=0,arrows=->
				](0,0,\MyCenter)(0,0,\MyRad)(0,\MyRad,0)
			\pstThreeDCircle[SphericalCoor,
				beginAngle=90,endAngle=60,arrows=->
				](\MyCenter,0,90)(\MyRad,0,0)(\MyRad,0,90)
			}
		\end{pspicture}
	\end{minipage}

Attachments:
a) Fig1.pdf: without pscustom. Looks well
b) Fig2.pdf: strange behaviour with pscustom. The lines drawed by spherical coordinates seems to be shifted

Best Regards,
Robert.
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