The trouble is, I want to fit the surface dimensions to a specific audio
buffer size, so I need the number of control points to fit a certain
number, rather than the other way around.
if you build the sphere using (build-nurbs-sphere h r) then pdata-size
will be (h + 3) * r.
if you only want to work with the horizontal segments as you did in the
example you just make the sphere horizontal segments three less than the
audio buffer size.
if you want to fit each element of the audio buffer to a separate nurbs
knot, knowing the audio buffer size, and provided that h = r, this is a
quadratic equation: x^2 + 3x = buffersize.
hope this helps.
gabor
