[Gmsh] spline interpolation

[adam.r.hunt at gmx.net]

I have been looking around lately for some code to do some quintic spline 
interpolation on an arbitrary number of axis (three or more).  I have been
asking 
the few people that might know where I could find such a thing but nobody
has 
been able to help.  I have found numerous cubic interpolaters but I have had
no 
luck with anything higher.  When I was reading LWN.net I saw the
announcement 
for Gmsh I figured that because of the mathematical nature of Gmesh you
might 
know where I could find such a library/class/function/code-snippet. 
 
Thanks. 
 
--adam  
 
BTW - My actual application is a motion controller. 

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