# voronoi3d

Creats a 3D version of Voronoi diagram. The initial space for each cell is calculated automatically from the given points by the following code:

``````xs = [for(p = points) p];
ys = [for(p = points) abs(p)];
zs = [for(p = points) abs(p)];
space_size = max([(max(xs) -  min(xs) / 2), (max(ys) -  min(ys)) / 2, (max(zs) -  min(zs)) / 2]);
// cube([space_size, space_size * 2, space_size * 2]);
``````

The preview or rendering of 3D Voronoi is slow. If you want to use this module, render and export the 3D Voronoi model first. Then, `import` the model to do what you want.

Since: 1.3.

## Parameters

• `points` : Points for each cell.
• `spacing` : Distance between cells. Default to 1.

## Examples

``````use <voronoi3d.scad>;

r = 30;

zas = rands(0, 359, 12);
yas = rands(0, 179, 12);

points = [
for(i = [0:len(zas) - 1])
[
r * cos(yas[i]) * cos(zas[i]),
r * cos(yas[i]) * sin(zas[i]),
r * sin(yas[i])
]
];

#for(pt = points) {
translate(pt) cube(1);
}

intersection() {
sphere(r);
voronoi3d(points);
}
`````` If you render, export and save the previous model as `voronoi3d.stl`, the following code will generate a Voronoi sphere.

``````r = 30;
thickness = 2;

difference() {
sphere(r);
scale(1.01) import("voronoi3d.stl");
sphere(r - thickness);
}
`````` 