"Oleguer Vilella" <ole### [at] infonegociocom> wrote:
> I'm not sure if you want it. Tray with this code:
>
> ======================================
> #declare RopeHoop = function { f_helical_torus(x,y,z, 5, 7, 2, 1.0, 1, 0.5,
> 0.25, 1, 1.0, 0) }
>
> isosurface {
> function { RopeHoop(x,y,z) }
> max_gradient 7
> contained_by { sphere { .4, 50*2 } }
> translate x*10
> scale 1
> rotate 0*x
> texture {
> pigment { color rgbf <1, 0, 0, 0> }
> finish  { ambient 1 diffuse 1 }
> } }
> ======================================

Yes, the contained_by a sphere makes more sense with this
object, I'd used the box to chop off parts for my window frame.

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