dotSCAD/docs/lib2x-voronoi2d.md

voronoi2d

Create 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]);