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- #!/usr/bin/ruby
- #
- ## https://rosettacode.org/wiki/Voronoi_diagram
- #
- require('Imager')
- func generate_voronoi_diagram(width, height, num_cells) {
- var img = %s<Imager>.new(xsize => width, ysize => height)
- var (nx,ny,nr,ng,nb) = 5.of { [] }...
- for i in ^num_cells {
- nx << rand(^width)
- ny << rand(^height)
- nr << rand(^256)
- ng << rand(^256)
- nb << rand(^256)
- }
- for y in ^height {
- for x in ^width {
- var j = (^num_cells -> min_by {|i| hypot(nx[i]-x, ny[i]-y) })
- img.setpixel(x => x, y => y, color => [nr[j], ng[j], nb[j]])
- }
- }
- return img
- }
- var img = generate_voronoi_diagram(500, 500, 25)
- img.write(file => 'VoronoiDiagram.png')
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