\documentclass[12pt,a4paper]{article}
\usepackage{pstricks}
\usepackage{multido}
\usepackage{pst-3dplot}
\usepackage{pst-grad}
\usepackage{pstricks-add}
\makeatletter
\let\modulo\pst@mod
\makeatother
\pagestyle{empty}

\begin{document}

\begin{pspicture}(-6,-2.25)(6,5)
  \pstThreeDCoor[xMin=-3,xMax=5,yMin=-1,yMax=5,zMin=-1,zMax=5,drawCoor=false]%
  \multido{\iA=0+30,\iB=30+30,\iC=1+1}{12}{%
    \modulo{\iC}{7}{\iCTemp}%
    \ifcase\iCTemp\psset{fillcolor=black,gradend=black}%
      \or\psset{fillcolor=red,gradend=red}%
      \or\psset{fillcolor=green,gradend=green}%
      \or\psset{fillcolor=blue,gradend=blue}%
      \or\psset{fillcolor=cyan,gradend=cyan}%
      \or\psset{fillcolor=magenta,gradend=magenta}%
      \or\psset{fillcolor=yellow,gradend=yellow}%
    \fi%
    \pstThreeDLine[SphericalCoor=true,%
%    fillstyle=solid,linestyle=none]%
       fillstyle=gradient,gradbegin=white,gradmidpoint=0]%
       (0,0,0)(1,\iA,60)(2,\iA,50)(3,\iA,40)(4,\iA,30)(5,\iA,20)(6,\iA,10)%
       (6,\iB,10)(5,\iB,20)(4,\iB,30)(3,\iB,40)(2,\iB,50)(1,\iB,60)(0,0,0)
  }%
  \pstThreeDLine[linecolor=black](0,0,0)(0,0,5)%
\end{pspicture}

\end{document}
