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README.md

generativeart

Go Go Report Card GitHub license

generativeart is a Go package to generate many kinds of generative art. The goal is to collect some excellent generative art (implemented in R or Processing), and rewrite them in Go again. I would paste the original link at the end of this README(If I remember, you can also submit a PR if you found I missed something.). Currently, it supports the following type.

Table of Contents

Buy me a coffee

If you found this package is useful, maybe you could buy me a coffee from Paypal.

Contributing

I am glad to see someone to contribute to this repo, please follow the CONTRIBUTING.md for more information. Or you can just open an issue or PR.

Types supported

This package is still working in progress. More types would be added. Welcome anyone interested in this field to submit your PR.

  • Maze
  • Julia Set
  • Random Circle Trails
  • Silk Smoke
  • Spiral Square
  • Square Grid
  • Circle Line
  • Circle Loop
  • Silk Sky
  • Dot Line
  • Swirl
  • Point Ribbon
  • Janus
  • Random Shapes
  • Color Circle
  • Color Circle2
  • Circle Grid
  • Contour Line
  • Noise Line
  • Ocean Fish
  • Circle Loop2
  • Pixel Hole
  • Dots Wave
  • Circle Move
  • Circle Noise
  • Yarn
  • Black Hole
  • Color Canva
  • Domain Warp
  • Perlin Perls

For these kinds of art, the package provides as many parameters to control the appearance.

Install

The go version I used is Go 1.16.

go get github.com/jdxyw/generativeart

Art Type

NewCircleLine(step float64, lineNum int, radius, xaixs, yaixs float64)
NewCircleLoop(radius float64)
NewMaze(step int)
NewRandCicle(mc, msp int, minStep, maxStep, minr, maxr float64, isRandColor bool)
NewSilkSky(circleNum int, sunRadius float64)
NewSilkSmoke(mc, msp int, minStep, maxStep, minRadius, maxRadius float64, isRandColor bool)
NewSpiralSquare(squareNum int, rectSide, decay float64, randColor bool)
NewSwirl(a, b, c, d, xaixs, yaixs float64)
NewDotLine(n int, ras, canv float64, randColor bool)
NewPointRibbon(r float64)
NewJanus(n int, decay float64)
NewRandomShape(shapeNum int)
NewColorCircle(circleNum int)
NewColorCircle2(circleNum int)
NewCircleGrid(circleNumMin, circleNumMax int)
NewContourLine(lineNum int)
NewNoiseLine(n int)
NewCircleLoop2(depth int)
NewPixelHole(dotN int)
NewDotsWave(dotsN int)
NewCircleMove(circleNum int)
NewCircleNoise(dotsN, colorMin, colorMax int)
NewYarn(n int)
NewBlackHole(circleN int, density, circleGap float64)
NewColorCanve(seg float64)
NewDomainWrap(scale, scale2, xOffset, yOffset float64, cmap ColorMapping)
NewPerlinPerls(circleN, dotsN, colorMin, colorMax int)

Docs

You could find the docs in the doc.

Examples

You could find examples for all types under example.

General Options

type Options struct {
 background  color.RGBA
 foreground  color.RGBA
 lineColor   color.RGBA
 lineWidth   float64
 colorSchema []color.RGBA
 nIters      int
 alpha       int
}

The Options is a global option for the whole canva. It includes those general parameters used by different kinds of types, such as background, lineColor, and colorScheme.

For those parameters specified for different kinds of art types, they have their own struct.

Usage and example

Below are some selective examples. For more examples, you could check the example folder.

Junas

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.Black)
 c.FillBackground()
 c.SetColorSchema(common.DarkRed)
 c.SetForeground(common.LightPink)
 c.Draw(arts.NewJanus(10, 0.2))
 c.ToPNG("janus.png")
}

Random Shapes

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.White)
 c.FillBackground()
 c.SetColorSchema([]color.RGBA{
  {0xCF, 0x2B, 0x34, 0xFF},
  {0xF0, 0x8F, 0x46, 0xFF},
  {0xF0, 0xC1, 0x29, 0xFF},
  {0x19, 0x6E, 0x94, 0xFF},
  {0x35, 0x3A, 0x57, 0xFF},
 })
 c.Draw(arts.NewRandomShape(150))
 c.ToPNG("randomshape.png")
}

Color Circle2

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0x11, 0x60, 0xC6, 0xFF},
  {0xFD, 0xD9, 0x00, 0xFF},
  {0xF5, 0xB4, 0xF8, 0xFF},
  {0xEF, 0x13, 0x55, 0xFF},
  {0xF4, 0x9F, 0x0A, 0xFF},
 }
 c := generativeart.NewCanva(800, 800)
 c.SetBackground(common.White)
 c.FillBackground()
 c.SetColorSchema(colors)
 c.Draw(arts.NewColorCircle2(30))
 c.ToPNG("colorcircle2.png")
}

Circle Grid

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0xED, 0x34, 0x41, 0xFF},
  {0xFF, 0xD6, 0x30, 0xFF},
  {0x32, 0x9F, 0xE3, 0xFF},
  {0x15, 0x42, 0x96, 0xFF},
  {0x00, 0x00, 0x00, 0xFF},
  {0xFF, 0xFF, 0xFF, 0xFF},
 }
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(color.RGBA{0xDF, 0xEB, 0xF5, 0xFF})
 c.FillBackground()
 c.SetColorSchema(colors)
 c.SetLineWidth(2.0)
 c.Draw(arts.NewCircleGrid(4, 6))
 c.ToPNG("circlegrid.png")
}

Circle Composes Circle

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0xF9, 0xC8, 0x0E, 0xFF},
  {0xF8, 0x66, 0x24, 0xFF},
  {0xEA, 0x35, 0x46, 0xFF},
  {0x66, 0x2E, 0x9B, 0xFF},
  {0x43, 0xBC, 0xCD, 0xFF},
 }
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(color.RGBA{8, 10, 20, 255})
 c.FillBackground()
 c.SetColorSchema(colors)
 c.Draw(arts.NewCircleLoop2(7))
 c.ToPNG("colorloop2.png")
}

Pixel Hole

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0xF9, 0xC8, 0x0E, 0xFF},
  {0xF8, 0x66, 0x24, 0xFF},
  {0xEA, 0x35, 0x46, 0xFF},
  {0x66, 0x2E, 0x9B, 0xFF},
  {0x43, 0xBC, 0xCD, 0xFF},
 }
 c := generativeart.NewCanva(800, 800)
 c.SetBackground(common.Black)
 c.FillBackground()
 c.SetColorSchema(colors)
 c.SetIterations(1200)
 c.Draw(arts.NewPixelHole(60))
 c.ToPNG("pixelhole.png")

}

Dots Wave

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0xFF, 0xBE, 0x0B, 0xFF},
  {0xFB, 0x56, 0x07, 0xFF},
  {0xFF, 0x00, 0x6E, 0xFF},
  {0x83, 0x38, 0xEC, 0xFF},
  {0x3A, 0x86, 0xFF, 0xFF},
 }
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.Black)
 c.FillBackground()
 c.SetColorSchema(colors)
 c.Draw(arts.NewDotsWave(300))
 c.ToPNG("dotswave.png")
}

Contour Line

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0x58, 0x18, 0x45, 0xFF},
  {0x90, 0x0C, 0x3F, 0xFF},
  {0xC7, 0x00, 0x39, 0xFF},
  {0xFF, 0x57, 0x33, 0xFF},
  {0xFF, 0xC3, 0x0F, 0xFF},
 }
 c := generativeart.NewCanva(1600, 1600)
 c.SetBackground(color.RGBA{0x1a, 0x06, 0x33, 0xFF})
 c.FillBackground()
 c.SetColorSchema(colors)
 c.Draw(arts.NewContourLine(500))
 c.ToPNG("contourline.png")
}

Noise Line

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0x06, 0x7B, 0xC2, 0xFF},
  {0x84, 0xBC, 0xDA, 0xFF},
  {0xEC, 0xC3, 0x0B, 0xFF},
  {0xF3, 0x77, 0x48, 0xFF},
  {0xD5, 0x60, 0x62, 0xFF},
 }
 c := generativeart.NewCanva(1000, 1000)
 c.SetBackground(color.RGBA{0xF0, 0xFE, 0xFF, 0xFF})
 c.FillBackground()
 c.SetColorSchema(colors)
 c.Draw(arts.NewNoiseLine(1000))
 c.ToPNG("noiseline.png")
}

Dot Line

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(2080, 2080)
 c.SetBackground(color.RGBA{230, 230, 230, 255})
 c.SetLineWidth(10)
 c.SetIterations(15000)
 c.SetColorSchema(common.Plasma)
 c.FillBackground()
 c.Draw(arts.NewDotLine(100, 20, 50, false))
 c.ToPNG("dotline.png")
}

Ocean Fish

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0xCF, 0x2B, 0x34, 0xFF},
  {0xF0, 0x8F, 0x46, 0xFF},
  {0xF0, 0xC1, 0x29, 0xFF},
  {0x19, 0x6E, 0x94, 0xFF},
  {0x35, 0x3A, 0x57, 0xFF},
 }
 c := generativeart.NewCanva(500, 500)
 c.SetColorSchema(colors)
 c.Draw(arts.NewOceanFish(100, 8))
 c.ToPNG("oceanfish.png")
}

Circle Loop

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.Black)
 c.SetLineWidth(1)
 c.SetLineColor(common.Orange)
 c.SetAlpha(30)
 c.SetIterations(1000)
 c.FillBackground()
 c.Draw(arts.NewCircleLoop(100))
 c.ToPNG("circleloop.png")
}

Domain Warp

func cmap(r, m1, m2 float64) color.RGBA {
 rgb := color.RGBA{
  uint8(common.Constrain(m1*200*r, 0, 255)),
  uint8(common.Constrain(r*200, 0, 255)),
  uint8(common.Constrain(m2*255*r, 70, 255)),
  255,
 }
 return rgb
}

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.Black)
 c.FillBackground()
 c.Draw(arts.NewDomainWrap(0.01, 4,4, 20, cmap))
 c.ToPNG("domainwarp.png")
}

Circle Noise

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.White)
 c.SetAlpha(80)
 c.SetLineWidth(0.3)
 c.FillBackground()
 c.SetIterations(400)
 c.Draw(arts.NewCircleNoise(2000, 60, 80))
 c.ToPNG("circlenoise.png")
}

Perlin Perls

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.White)
 c.SetAlpha(120)
 c.SetLineWidth(0.3)
 c.FillBackground()
 c.SetIterations(200)
 c.Draw(arts.NewPerlinPerls(10, 200, 40, 80))
 c.ToPNG("perlinperls.png")
}

Color Canva

func main() {
 rand.Seed(time.Now().Unix())
 colors := []color.RGBA{
  {0xF9, 0xC8, 0x0E, 0xFF},
  {0xF8, 0x66, 0x24, 0xFF},
  {0xEA, 0x35, 0x46, 0xFF},
  {0x66, 0x2E, 0x9B, 0xFF},
  {0x43, 0xBC, 0xCD, 0xFF},
 }
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.Black)
 c.FillBackground()
 c.SetLineWidth(8)
 c.SetColorSchema(colors)
 c.Draw(arts.NewColorCanve(5))
 c.ToPNG("colorcanva.png")
}

Julia Set

func julia1(z complex128) complex128 {
 c := complex(-0.1, 0.651)

 z = z*z + c

 return z
}

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetIterations(800)
 c.SetColorSchema(common.Viridis)
 c.FillBackground()
 c.Draw(arts.NewJulia(julia1, 40, 1.5, 1.5))
 c.ToPNG("julia.png")
}

Black Hole

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(color.RGBA{R: 30, G: 30, B: 30, A: 255})
 c.FillBackground()
 c.SetLineWidth(1.0)
 c.SetLineColor(common.Tomato)
 c.Draw(arts.NewBlackHole(200, 400, 0.01))
 c.ToPNG("blackhole.png")
}

Silk Sky

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(600, 600)
 c.SetAlpha(10)
 c.Draw(arts.NewSilkSky(15, 5))
 c.ToPNG("silksky.png")
}

Circle Move

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(1200, 500)
 c.SetBackground(common.White)
 c.FillBackground()
 c.Draw(arts.NewCircleMove(1000))
 c.ToPNG("circlemove.png")
}

Random Circle

func main() {
 rand.Seed(time.Now().Unix())
 c := generativeart.NewCanva(500, 500)
 c.SetBackground(common.MistyRose)
 c.SetLineWidth(1.0)
 c.SetLineColor(color.RGBA{
  R: 122,
  G: 122,
  B: 122,
  A: 30,
 })
 c.SetColorSchema(common.Plasma)
 c.SetIterations(4)
 c.FillBackground()
 c.Draw(arts.NewRandCicle(30, 80, 0.2, 2, 10, 30, true))
 c.ToPNG("randcircle.png")
}

TODO

  • Add more kinds of generative arts or types.

Contribution

Thanks for the following sites and repos, I got lots of ideas, inspiration, code, and tricks from them. The list would be very long; sorry for forgetting some of them.