This is about the spline type by Wolfgang Ortmann. (Splines with variables.)

The documentation says that it can handle both vectors and floats, but
whenever I use floats they are converted to vectors, as the code below
shows.


#version unofficial MegaPov 0.6;
#declare MySpline = spline {cubic_spline
   0.0, 0.2,
   0.5, 0.3,
   1.0, 0.1,
}
#debug str(MySpline(0),7,4)


Is there any way around this problem?

Using MySpline(0).x is not an option, because I use the same macro to handle
floats and vectors, and I don't want my vectors to be converted to floats.

Rune
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