Creats a Voronoi diagram. The initial region for each cell is calculated automatically from the given points by the following code:

```
xs = [for(p = points) p[0]];
ys = [for(p = points) abs(p[1])];
region_size = max([(max(xs) - min(xs) / 2), (max(ys) - min(ys)) / 2]);
```

**Since:** 1.3

## Parameters

`points`

: Points for each cell.`spacing`

: Distance between cells. Default to 1.`r`

,`delta`

,`chamfer`

: The outlines of each cell can be moved outward or inward. These parameters have the same effect as`offset`

.`region_type`

: The initial shape for each cell can be`"square"`

or`"circle"`

. Default to`"square"`

.

## Examples

```
use <voronoi2d.scad>;
points = [for(i = [0:50]) rands(-20, 20, 2)];
voronoi2d(points);
translate([60, 0, 0])
voronoi2d(points, region_type = "circle");
```

```
use <voronoi2d.scad>;
use <hollow_out.scad>;
xs = rands(0, 40, 50);
ys = rands(0, 20, 50);
points = [for(i = [0:len(xs) - 1]) [xs[i], ys[i]]];
difference() {
square([40, 20]);
voronoi2d(points);
}
hollow_out(shell_thickness = 1) square([40, 20]);
```