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 Go to latest Published: Apr 21, 2024 License: MIT Imports: 19 Imported by: 0

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Index

Constants

This section is empty.

Variables

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var LogLevel int

Functions

func AverageImageColor 

func AverageImageColor(im image.Image) color.NRGBA

func LoadImage 

func LoadImage(path string) (image.Image, error)

func Log 

func Log(level int, format string, a ...interface{})

func NumberString 

func NumberString(x float64) string

func PreAnneal 

func PreAnneal(state Annealable, iterations int) float64

func SaveFile 

func SaveFile(path, contents string) error

func SaveGIF 

func SaveGIF(path string, frames []image.Image, delay, lastDelay int) error

func SaveGIFImageMagick 

func SaveGIFImageMagick(path string, frames []image.Image, delay, lastDelay int) error

func SaveJPG 

func SaveJPG(path string, im image.Image, quality int) error

func SavePNG 

func SavePNG(path string, im image.Image) error

Types

type Annealable 

type Annealable interface {
	Energy() float64
	DoMove() interface{}
	UndoMove(interface{})
	Copy() Annealable
}

func Anneal 

func Anneal(state Annealable, maxTemp, minTemp float64, steps int) Annealable

func HillClimb 

func HillClimb(state Annealable, maxAge int) Annealable

type Color 

type Color struct {
	R, G, B, A int
}

func MakeColor 

func MakeColor(c color.Color) Color

func MakeHexColor 

func MakeHexColor(x string) Color

func (*Color) NRGBA 

func (c *Color) NRGBA() color.NRGBA

type Ellipse 

type Ellipse struct {
	Worker *Worker
	X, Y   int
	Rx, Ry int
	Circle bool
}

func NewRandomCircle 

func NewRandomCircle(worker *Worker) *Ellipse

func NewRandomEllipse 

func NewRandomEllipse(worker *Worker) *Ellipse

func (*Ellipse) Copy 

func (c *Ellipse) Copy() Shape

func (*Ellipse) Draw 

func (c *Ellipse) Draw(dc *gg.Context, scale float64)

func (*Ellipse) Mutate 

func (c *Ellipse) Mutate()

func (*Ellipse) Rasterize 

func (c *Ellipse) Rasterize() []Scanline

func (*Ellipse) SVG 

func (c *Ellipse) SVG(attrs string) string

type Heatmap 

type Heatmap struct {
	W, H  int
	Count []uint64
}

func NewHeatmap 

func NewHeatmap(w, h int) *Heatmap

func (*Heatmap) Add 

func (h *Heatmap) Add(lines []Scanline)

func (*Heatmap) AddHeatmap 

func (h *Heatmap) AddHeatmap(a *Heatmap)

func (*Heatmap) Clear 

func (h *Heatmap) Clear()

func (*Heatmap) Image 

func (h *Heatmap) Image(gamma float64) *image.Gray16

type Model 

type Model struct {
	Sw, Sh     int
	Scale      float64
	Background Color
	Target     *image.RGBA
	Current    *image.RGBA
	Context    *gg.Context
	Score      float64
	Shapes     []Shape
	Colors     []Color
	Scores     []float64
	Workers    []*Worker
}

func NewModel 

func NewModel(target image.Image, background Color, size, numWorkers int) *Model

func (*Model) Add 

func (model *Model) Add(shape Shape, alpha int)

func (*Model) Frames 

func (model *Model) Frames(scoreDelta float64) []image.Image

func (*Model) SVG 

func (model *Model) SVG() string

func (*Model) Step 

func (model *Model) Step(shapeType ShapeType, alpha, repeat int) int

type Polygon 

type Polygon struct {
	Worker *Worker
	Order  int
	Convex bool
	X, Y   []float64
}

func NewRandomPolygon 

func NewRandomPolygon(worker *Worker, order int, convex bool) *Polygon

func (*Polygon) Copy 

func (p *Polygon) Copy() Shape

func (*Polygon) Draw 

func (p *Polygon) Draw(dc *gg.Context, scale float64)

func (*Polygon) Mutate 

func (p *Polygon) Mutate()

func (*Polygon) Rasterize 

func (p *Polygon) Rasterize() []Scanline

func (*Polygon) SVG 

func (p *Polygon) SVG(attrs string) string

func (*Polygon) Valid 

func (p *Polygon) Valid() bool

type Quadratic 

type Quadratic struct {
	Worker *Worker
	X1, Y1 float64
	X2, Y2 float64
	X3, Y3 float64
	Width  float64
}

func NewRandomQuadratic 

func NewRandomQuadratic(worker *Worker) *Quadratic

func (*Quadratic) Copy 

func (q *Quadratic) Copy() Shape

func (*Quadratic) Draw 

func (q *Quadratic) Draw(dc *gg.Context, scale float64)

func (*Quadratic) Mutate 

func (q *Quadratic) Mutate()

func (*Quadratic) Rasterize 

func (q *Quadratic) Rasterize() []Scanline

func (*Quadratic) SVG 

func (q *Quadratic) SVG(attrs string) string

func (*Quadratic) Valid 

func (q *Quadratic) Valid() bool

type Rectangle 

type Rectangle struct {
	Worker *Worker
	X1, Y1 int
	X2, Y2 int
}

func NewRandomRectangle 

func NewRandomRectangle(worker *Worker) *Rectangle

func (*Rectangle) Copy 

func (r *Rectangle) Copy() Shape

func (*Rectangle) Draw 

func (r *Rectangle) Draw(dc *gg.Context, scale float64)

func (*Rectangle) Mutate 

func (r *Rectangle) Mutate()

func (*Rectangle) Rasterize 

func (r *Rectangle) Rasterize() []Scanline

func (*Rectangle) SVG 

func (r *Rectangle) SVG(attrs string) string

type RotatedEllipse 

type RotatedEllipse struct {
	Worker *Worker
	X, Y   float64
	Rx, Ry float64
	Angle  float64
}

func NewRandomRotatedEllipse 

func NewRandomRotatedEllipse(worker *Worker) *RotatedEllipse

func (*RotatedEllipse) Copy 

func (c *RotatedEllipse) Copy() Shape

func (*RotatedEllipse) Draw 

func (c *RotatedEllipse) Draw(dc *gg.Context, scale float64)

func (*RotatedEllipse) Mutate 

func (c *RotatedEllipse) Mutate()

func (*RotatedEllipse) Rasterize 

func (c *RotatedEllipse) Rasterize() []Scanline

func (*RotatedEllipse) SVG 

func (c *RotatedEllipse) SVG(attrs string) string

type RotatedRectangle 

type RotatedRectangle struct {
	Worker *Worker
	X, Y   int
	Sx, Sy int
	Angle  int
}

func NewRandomRotatedRectangle 

func NewRandomRotatedRectangle(worker *Worker) *RotatedRectangle

func (*RotatedRectangle) Copy 

func (r *RotatedRectangle) Copy() Shape

func (*RotatedRectangle) Draw 

func (r *RotatedRectangle) Draw(dc *gg.Context, scale float64)

func (*RotatedRectangle) Mutate 

func (r *RotatedRectangle) Mutate()

func (*RotatedRectangle) Rasterize 

func (r *RotatedRectangle) Rasterize() []Scanline

func (*RotatedRectangle) SVG 

func (r *RotatedRectangle) SVG(attrs string) string

func (*RotatedRectangle) Valid 

func (r *RotatedRectangle) Valid() bool

type Scanline 

type Scanline struct {
	Y, X1, X2 int
	Alpha     uint32
}

type Shape 

type Shape interface {
	Rasterize() []Scanline
	Copy() Shape
	Mutate()
	Draw(dc *gg.Context, scale float64)
	SVG(attrs string) string
}

type ShapeType 

type ShapeType int
const (
	ShapeTypeAny ShapeType = iota
	ShapeTypeTriangle
	ShapeTypeRectangle
	ShapeTypeEllipse
	ShapeTypeCircle
	ShapeTypeRotatedRectangle
	ShapeTypeQuadratic
	ShapeTypeRotatedEllipse
	ShapeTypePolygon
)

type State 

type State struct {
	Worker      *Worker
	Shape       Shape
	Alpha       int
	MutateAlpha bool
	Score       float64
}

func NewState 

func NewState(worker *Worker, shape Shape, alpha int) *State

func (*State) Copy 

func (state *State) Copy() Annealable

func (*State) DoMove 

func (state *State) DoMove() interface{}

func (*State) Energy 

func (state *State) Energy() float64

func (*State) UndoMove 

func (state *State) UndoMove(undo interface{})

type Triangle 

type Triangle struct {
	Worker *Worker
	X1, Y1 int
	X2, Y2 int
	X3, Y3 int
}

func NewRandomTriangle 

func NewRandomTriangle(worker *Worker) *Triangle

func (*Triangle) Copy 

func (t *Triangle) Copy() Shape

func (*Triangle) Draw 

func (t *Triangle) Draw(dc *gg.Context, scale float64)

func (*Triangle) Mutate 

func (t *Triangle) Mutate()

func (*Triangle) Rasterize 

func (t *Triangle) Rasterize() []Scanline

func (*Triangle) SVG 

func (t *Triangle) SVG(attrs string) string

func (*Triangle) Valid 

func (t *Triangle) Valid() bool

type Worker 

type Worker struct {
	W, H       int
	Target     *image.RGBA
	Current    *image.RGBA
	Buffer     *image.RGBA
	Rasterizer *raster.Rasterizer
	Lines      []Scanline
	Heatmap    *Heatmap
	Rnd        *rand.Rand
	Score      float64
	Counter    int
}

func NewWorker 

func NewWorker(target *image.RGBA) *Worker

func (*Worker) BestHillClimbState 

func (worker *Worker) BestHillClimbState(t ShapeType, a, n, age, m int) *State

func (*Worker) BestRandomState 

func (worker *Worker) BestRandomState(t ShapeType, a, n int) *State

func (*Worker) Energy 

func (worker *Worker) Energy(shape Shape, alpha int) float64

func (*Worker) Init 

func (worker *Worker) Init(current *image.RGBA, score float64)

func (*Worker) RandomState 

func (worker *Worker) RandomState(t ShapeType, a int) *State

Source Files

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