The example for using splines given by Wolfgang Ortman
http://pandora.inf.uni-jena.de/offen/noo/povsp/spteach4.pov
does not work. WinMegaPov 0.4 gives an error on the radius of the sphere:
Float expected but vector or colour expression found.
According to his documentation 
http://pandora.inf.uni-jena.de/p/e/noo/povsp/use.html
and the MegaDoc a float can be used instead of vector.

Ingo

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