Sorry if I miss the point, but...

What about
z = f(x,y)  or (x,y,f(x,y)) ?

where f is a function wich will calculate in Z using x
and y values.
 A classic one:
 f(x,y) = sin(x) + sin(y)

This can be fine to generate simple terrain surfaces.

f(a,r) can can also be a polar function, where x,y are
angles and radius...

Alessandro




 --- ChaoHui Zhu <[EMAIL PROTECTED]> escreveu: > Hi,
all
>   Does anybody has the programme or arithematic to
> convert 2D coordinate to 3D Coordinate?
>   Thanks
>

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