62 lines
976 B
Go
62 lines
976 B
Go
|
package main
|
||
|
|
||
|
import (
|
||
|
"math/rand"
|
||
|
|
||
|
"github.com/fogleman/gg"
|
||
|
)
|
||
|
|
||
|
func random() float64 {
|
||
|
return rand.Float64()*2 - 1
|
||
|
}
|
||
|
|
||
|
func point() (x, y float64) {
|
||
|
return random(), random()
|
||
|
}
|
||
|
|
||
|
func randomQuadratic(dc *gg.Context) {
|
||
|
x0, y0 := point()
|
||
|
x1, y1 := point()
|
||
|
x2, y2 := point()
|
||
|
dc.MoveTo(x0, y0)
|
||
|
dc.QuadraticTo(x1, y1, x2, y2)
|
||
|
}
|
||
|
|
||
|
func randomCubic(dc *gg.Context) {
|
||
|
x0, y0 := point()
|
||
|
x1, y1 := point()
|
||
|
x2, y2 := point()
|
||
|
x3, y3 := point()
|
||
|
dc.MoveTo(x0, y0)
|
||
|
dc.CubicTo(x1, y1, x2, y2, x3, y3)
|
||
|
}
|
||
|
|
||
|
func main() {
|
||
|
const (
|
||
|
S = 256
|
||
|
W = 8
|
||
|
H = 8
|
||
|
)
|
||
|
dc := gg.NewContext(S*W, S*H)
|
||
|
dc.SetRGB(1, 1, 1)
|
||
|
dc.Clear()
|
||
|
for j := 0; j < H; j++ {
|
||
|
for i := 0; i < W; i++ {
|
||
|
x := float64(i)*S + S/2
|
||
|
y := float64(j)*S + S/2
|
||
|
dc.Push()
|
||
|
dc.Translate(x, y)
|
||
|
dc.Scale(S/2, S/2)
|
||
|
randomCubic(dc)
|
||
|
// randomQuadratic(dc)
|
||
|
dc.Pop()
|
||
|
}
|
||
|
}
|
||
|
dc.SetRGBA(0, 0, 0, 0.1)
|
||
|
dc.FillPreserve()
|
||
|
dc.SetRGB(0, 0, 0)
|
||
|
dc.SetLineWidth(16)
|
||
|
dc.StrokePreserve()
|
||
|
dc.SavePNG("out.png")
|
||
|
}
|