-- The program contains the definitions of three objects

-- Definition of object "Parallelepiped"

Parallelepiped(x[3], a[6])

{

Parallelepiped = (x[1] - a[1]) & (-(x[1] - a[1]) + a[4]) &

(x[2] - a[2]) & (-(x[2] - a[2]) + a[5] &

(x[3] - a[3]) & (-(x[3] - a[3]) + a[6]);

}

-- Definition of object "Sphere"

Sphere(x[3], a[1])

{

Sphere = a[1]^2 - x[1]^2 - x[2]^2 - x[3]^2;

}

-- Definition of object "CSGobj" with using previosly defined objects

CSGobj(x[3], a[1])

{

array param[6];

param = [-9.0, -8., -9, 18.0, 16., 18];

rad = 10.;

block = Parallelepiped(x, param);

CSGobj = block \ Sphere(x,rad);

}