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docs/lib3x-voronoi2d.md

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-# voronoi2d
-
-Create a [Voronoi diagram](https://en.wikipedia.org/wiki/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`](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations#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");
-
-![voronoi2d](images/lib3x-voronoi2d-1.JPG)
-
-    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]);
-    
-![voronoi2d](images/lib3x-voronoi2d-2.JPG)

docs/lib3x-voronoi3d.md

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-# voronoi3d
-
-Create a 3D version of [Voronoi diagram](https://en.wikipedia.org/wiki/Voronoi_diagram). The initial space 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])];
-    zs = [for(p = points) abs(p[2])];
-    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);
-    }
-
-![voronoi3d](images/lib3x-voronoi3d-1.JPG)
-
-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);
-    }
-    
-![voronoi3d](images/lib3x-voronoi3d-2.JPG)