cormullion

using Luxor, Colors

function hilbert(pointslist::Array{Point, 1},
        start::Point, unitx::Point, unity::Point, depth)
    if depth <= 0
        push!(
            pointslist,
            Point(start.x + (unitx.x + unity.x)/2, start.y + (unitx.y + unity.y)/2))
    else
        hilbert(pointslist, start,

cormullion

using Luxor, Colors

function main(fname)
    Drawing(600, 600, fname)
    origin()
    circle(O, 290, :clip)
    sethue("white")
    paint()

    colors = [Luxor.julia_blue, Luxor.julia_red, Luxor.julia_green, Luxor.julia_purple]

cormullion

using Luxor, Contour, Images

function geostats(s)
  Δ = s/500 # scale factor, original design was 500units
  circle(O, 245Δ, :clip)
  sethue("white")
  circle(O, 245Δ, :fill)

  # generate contours from image
  pwd()

cormullion

using Luxor

function main()
    Drawing(500, 500, "/tmp/juliaperformance.svg")
    origin()
    squircle(O, 245, 245, :clip, rt=0.3)
    sethue("ivory")
    paint()
    @layer begin
        translate(0, 200)

cormullion

using Luxor

plotpoints = Point[
    Point(-90.36775, 109.412),
    Point(-17.1930000000000, 20.175),
    Point(-60.1385, -121.20),
    Point(29.972500000000025, -61.73075),
    Point(109.87098, -41.90625),
    Point(83.43848, 55.41374),
    Point(208.39248, -38.902475),

cormullion

using Luxor, ColorSchemes

function sinecurveincreasing(thecurve, width=5.0; initialwidth=1, finalwidth=2)
    leftcurve  = Point[]
    rightcurve = Point[]
    
    for n in 1:length(thecurve)-1
        # find slope of curve at those points
        pt1 = Point(thecurve[n].x, cos(thecurve[n].y))
        

cormullion

using Luxor, ColorSchemes

struct Point4D <: AbstractArray{Float64, 1}
    x::Float64
    y::Float64
    z::Float64
    w::Float64
end

Point4D(a::Array{Float64, 1}) = Point4D(a...)

cormullion

using Luxor, MiniFB, Colors

mutable struct Guilloche
    f1::Float64
    f2::Float64
    f3::Float64
    f4::Float64
    # damping factors: increase to make the energy losses faster
    xd1::Float64
    xd2::Float64

cormullion

using Luxor, Thebes, Zalgo

leafverts = convert.(Point3D, Point[Point(-22.25390625, 44.8359375), Point(-42.9765625, 26.78515625), Point(-43.40625, 26.03125), Point(-35.67578125, 21.640625), Point(-35.66015625, 21.33984375), Point(-50.12109375, 7.46875), Point(-52.17578125, 4.1328125), Point(-47.66796875, 1.4140625), Point(-47.66015625, 1.17578125), Point(-61.1015625, -27.94140625), Point(-60.84375, -29.23828125), Point(-35.09375, -24.734375), Point(-34.35546875, -25.7109375), Point(-21.59375, -13.56640625), Point(-21.11328125, -13.94921875), Point(-22.65625, -40.26953125), Point(-22.44921875, -40.9609375), Point(-1.359375, -62.5703125), Point(-0.55078125, -62.203125), Point(5.35546875, -82.87109375), Point(5.80859375, -82.890625), Point(10.83203125, -62.71484375), Point(10.69921875, -61.34375), Point(29.7734375, -42.10546875), Point(30.01171875, -41.58203125), Point(24.234375, -13.328125), Point(24.4140625, -13.02734375), Point(36.2734375, -21.5625), Point(37.09375, -21.87109375), Point(57.6875, -23.015625), 

cormullion

using Luxor, Colors

function main(nrows, ncols, startpattern;
        firstcolor          = "rebeccapurple",
        secondcolor         = "darkorange",
        backgroundcolor     = "black",
        backgrounddotcolor  = "grey15",
        highlightcolor      = "white")
        lw = (500/ncols) - 20
        r_pattern = [