Here is the final version of the #macro I did last
week; the smoother keyword is now working properly;
it fact, it works very well, and it allows to smooth the
wavy curves... One can adjust the number of waves
from 2 to "a very large number of waves".
Not very usefull, but worth the effort !
A lot of different Pov trig calculations inside
this macro; if some of you are interested, i will
post the code...

Alex P