"Amir_ni" <nomail@nomail> wrote:
> if the position of eight spheres are in a cubic form in a way that the
> distance between neighbor sphere is less than 1.4 times the radius of spheres, a
> cavity is formed in the center of cube. I want to make the shape of that cavity.
> The following code contains the the coordinates of eight spheres. In advance, I
> do appreciate your help.

If I understand the problem correctly, that's an easy one:

- Create a shape with the spheres' center points as corners (should be a cube
from your description)
- Subtract the spheres
- Voila!

(BTW, I guess that 1.4 should in fact be sqrt(2)...)

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