1743 Dragon

March 23, 2017
(meta linear-colour-space: 1)

(define
  coords1 [[348.973 481.238] ~ (gen/stray-2d from: [348.973 481.238] by: [5 5])
           [374.290 249.944] ~ (gen/stray-2d from: [374.290 249.944] by: [5 5])
           [174.617 251.729] ~ (gen/stray-2d from: [174.617 251.729] by: [5 5])
           [-269.435 -232.579] ~ (gen/stray-2d from: [-269.435 -232.579] by: [5 5])]

  coords2 [[257.619 -29.548] ~ (gen/stray-2d from: [257.619 -29.548] by: [5 5])
           [-10.417 64.697] ~ (gen/stray-2d from: [-10.417 64.697] by: [5 5])
           [-260.952 119.720] ~ (gen/stray-2d from: [-260.952 119.720] by: [5 5])
           [-139.187 -191.710] ~ (gen/stray-2d from: [-139.187 -191.710] by: [5 5])]

  coords3 [[56.218 -276.587] ~ (gen/stray-2d from: [56.218 -276.587] by: [5 5])
           [92.716 -393.120] ~ (gen/stray-2d from: [92.716 -393.120] by: [5 5])
           [426.686 -420.284] ~ (gen/stray-2d from: [426.686 -420.284] by: [5 5])
           [-29.734 335.671] ~ (gen/stray-2d from: [-29.734 335.671] by: [5 5])]


  col-fn-1 (col/build-procedural preset: robocop ~ (gen/select from: col/procedural-fn-presets)
                                 alpha: 0.08)
  col-fn-2 (col/build-procedural preset: mars ~ (gen/select from: col/procedural-fn-presets)
                                 alpha: 0.08)
  col-fn-3 (col/build-procedural preset: knight-rider ~ (gen/select from: col/procedural-fn-presets)
                                 alpha: 0.08)

  num-copies 28 ~ (gen/int min: 23 max: 30)
  squish (interp/build from: [0 (- num-copies 1)] to: [1.2 ~ (gen/stray from: 1.2 by: 0.6) 0.45 ~ (gen/stray from: 0.45 by: 0.4)]))

(fn (draw angle: 0 copy: 0)
  (scale vector: [(interp/value from: squish t: copy) (interp/value from: squish t: copy)])
  (fence (t num: 200)
    (poly coords: [(interp/bezier t: t coords: coords1)
                   (interp/bezier t: t coords: coords2)
                   (interp/bezier t: t coords: coords3)]
          colours: [(col/value from: col-fn-1 t: t)
                    (col/value from: col-fn-2 t: t)
                    (col/value from: col-fn-3 t: t)])))

(fn (render)
  (rect position: [500 500]
        width: 1000
        height: 1000
        colour: (col/value from: col-fn-1 t: 0.5))
  (on-matrix-stack
    (translate vector: [(/ canvas/width 2) (/ canvas/height 2)])
    (scale vector: [0.8 0.8])
    (repeat/rotate-mirrored fn: (address-of draw)
                            copies: num-copies)))

(render)
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