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- #!/usr/bin/ruby
- # Generates a Curlicue Fractal
- # See also:
- # https://mathworld.wolfram.com/CurlicueFractal.html
- require('GD::Simple')
- define τ = Num.tau
- define σ = sqrt(2)
- var (width=700, height=700)
- var img = %s<GD::Simple>.new(width, height)
- img.fgcolor('black')
- img.moveTo(width/2, height/2)
- var θ = 0
- 100_000.times {
- θ = (θ + τ*σ)
- img.turn(θ.rad2deg)
- img.line(1)
- }
- var file = File('curlicue.png')
- file.write(img.png, :raw)
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