Create a Voronoi diagram in the first octant. You specify a space and a grid width. The center of each cell will be distributed in each grid randomly.

**Since:** 2.4

## Parameters

`size`

: 3 value array [x, y, z].`grid_w`

: The width of each grid.`seed`

: Seed value for random number generator for repeatable results.`spacing`

: Distance between cells. Default to 1.

## Examples

```
use <voronoi/vrn3_space.scad>;
vrn3_space(
size = [20, 15, 10],
grid_w = 5
);
```