PSTricks: charpath on a curve (like textpath)

Question

I am interested in drawing a specially rendered text on a curve.

The LaTeX package pst-text provides a function to draw text on a curve (pstextpath) and a function to specially render text (pscharpath):

MWE for what I want to combine:

    \documentclass{scrartcl}
    \usepackage{pstricks}
    \usepackage{pst-plot}
    \usepackage{pst-text}
    \usepackage[final]{pst-pdf}

    \begin{document}
      \psset{unit=.5cm,plotpoints=200}
      \begin{pspicture}(-5,-2)(5,1)
        % Specially Rendered Text:
        \rput(0,-1)
        {    
          \DeclareFixedFont{\RM}{T1}{ptm}{b}{n}{10pt}                                               
          \pscharpath[linecolor=orange,fillstyle=solid,fillcolor=black,linewidth=0.3pt]{\RM Specially Rendered Text}
        }

        % Text on a Curve:
        \pstextpath[c](0,0)
        {
          \pscustom[linestyle=none]
          {
            \psplot{-3}{3}{0.5 x x mul 0.1 mul sub}
          }
        }
        {
          \DeclareFixedFont{\RM}{T1}{ptm}{s}{n}{10pt}
          \RM Text on a Curve
        }                       
      \end{pspicture}
    \end{document}

Summary: How to write specially rendered text on a curve?

Answer 1

I'm not sure that this is really an answer, but according to the documentation on \pscharpath and \pstextpath:

With the optional *, the character path is not removed from the PostScript environment at the end. This is mainly for special hacks. For example, you can use \pscharpath* in the first argument of \pstextpath, and thus typeset text along the character path of some other text. However, you cannot combine \pscharpath and \pstextpath in any other way. E.g., you cannot typeset character outlines along a path, and then fill and stroke the outlines with \pscharpath.