[pstricks] cubic b-spline package?

[Herbert Voss]

Carsten Vogel schrieb:
> Michael Sharpe schrieb:
>> Does anyone know of a PSTricks package that would allow one render a  
>> curve determined by a sequence of B-spline control points, as a  
>> sequence of cubic B\'ezier curves? Even the simplest case (uniform,  
>> relaxed) or the uniform, periodic case?
>>
>>   
> http://www.tn-home.de/Tobias/Soft/TeX/home.html#PSTricks
> 
> The package *pst-bezier* provides LaTeX-macros for Bezier splines

why is this package not on CTAN??

pst-func also has a \psBezierX with X=1..9, the number of
control points

Herbert