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47 lines
1.4 KiB
Markdown
47 lines
1.4 KiB
Markdown
# voronoi2d
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Creats 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:
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xs = [for(p = points) p[0]];
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ys = [for(p = points) abs(p[1])];
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region_size = max([(max(xs) - min(xs) / 2), (max(ys) - min(ys)) / 2]);
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**Since:** 1.3.
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## Parameters
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- `points` : Points for each cell.
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- `spacing` : Distance between cells. Default to 1.
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- `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).
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- `region_type` : The initial shape for each cell can be `"square"` or `"circle"`. Default to `"square"`.
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## Examples
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include <voronoi2d.scad>;
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xs = rands(-20, 20, 50);
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ys = rands(-20, 20, 50);
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points = [for(i = [0:len(xs) - 1]) [xs[i], ys[i]]];
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voronoi2d(points);
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translate([60, 0, 0])
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voronoi(points, region_type = "circle");
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include <voronoi2d.scad>;
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include <hollow_out.scad>;
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xs = rands(0, 40, 50);
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ys = rands(0, 20, 50);
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points = [for(i = [0:len(xs) - 1]) [xs[i], ys[i]]];
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difference() {
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square([40, 20]);
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voronoi2d(points);
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}
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hollow_out(shell_thickness = 1) square([40, 20]);
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