Charles C wrote:

> 
> I hadn't realised that a transform could be pre-defined.  That sounds a lot
> more convienient. Thanks
> 
> 
Welcome.
After re-reading your post I also remembered this that I sometimes use:

Say I wanted to position some points along a spline, (say ultimately to 
position fish bones along a fish's sinuous spine.)  The Reorient_Trans 
macro comes to mind, but it is used for objects and I just want the points.

You can do something like this:

#macro Reorient(Axis)
         transform { Reorient_Trans ( x, Axis )}
#end

then with
spline Spl defined:


vtransform ( P, Reorient( Spl(clock)-Spl(clock-delta) )

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