Degrafa swc

[Michael]

Hi,

I have downloaded the degrafa Flex 3 swc-file and wanted to use
NaturalCubicSpline, AdvancedQuadraticBezier or BezierUtils but these
classes could not be found.

These classes are included in the docs, but cannot be found when I try
to use them.
Is this normal? Did I download the wrong package? How can I solve
this so that I can use these classes?

thanks,
Michael