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dotSCAD/docs/lib3x-vrn2_cells_space.md
2022-06-06 13:11:46 +08:00

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# vrn2_cells_space
Create cell shapes of Voronoi in the first quadrant. 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` : 2 value array [x, y], rectangle with dimensions x and y.
- `grid_w` : The width of each grid. If it can split `size` equally, the voronoi diagram is seamless at the junction of top-bottom and left-right.
- `seed` : Seed value for random number generator for repeatable results.
## Examples
use <polyline_join.scad>
use <voronoi/vrn2_cells_space.scad>
size = [20, 20];
grid_w = 5;
cells = vrn2_cells_space(size, grid_w);
for(cell = cells) {
cell_pt = cell[0];
cell_poly = cell[1];
linear_extrude(1)
polyline_join([each cell_poly, cell_poly[0]])
circle(.5);
color(rands(0, 1, 3))
translate(cell_pt)
linear_extrude(2, scale = 0.8)
translate(-cell_pt)
polygon(cell_poly);
}
![vrn2_cells_space](images/lib3x-vrn2_cells_space-1.JPG)
use <polyline_join.scad>
use <ptf/ptf_torus.scad>
use <voronoi/vrn2_cells_space.scad>
size = [40, 80];
grid_w = 5;
cells = vrn2_cells_space(size, grid_w);
$fn = 4;
for(cell = cells) {
cell_poly = [for(p = cell[1]) ptf_torus(size, p, [10, 5], [360, 360])];
polyline_join(cell_poly)
sphere(.5);
}
![vrn2_cells_space](images/lib3x-vrn2_cells_space-2.JPG)