func main() {
canvas := paint.Image{image.NewRGBA(image.Rect(0, 0, 400, 400)), paint.Black, paint.White}
canvas.Rect(50, 50, 349, 349)
canvas.Line(50, 50, 349, 349)
canvas.Line(50, 349, 349, 50)
canvas.Ellipse(100, 100, 299, 299)
file, _ := os.Create("circle.png")
defer file.Close()
png.Encode(file, canvas)
}
func main() {
canvas := paint.Image{image.NewRGBA(image.Rect(0, 0, 400, 400)), paint.Black, paint.White}
canvas.Rect(100, 10, 299, 29)
canvas.Block(100, 40, 299, 59, paint.Level, 5)
canvas.Block(100, 70, 299, 89, paint.Plumb, 5)
canvas.Block(100, 100, 299, 119, paint.Slant, 5)
canvas.Block(100, 130, 299, 149, paint.Twill, 5)
canvas.Block(100, 160, 299, 179, paint.Level|paint.Plumb, 5)
canvas.Block(100, 190, 299, 209, paint.Slant|paint.Twill, 5)
canvas.Block(100, 220, 299, 239, paint.Level|paint.Plumb|paint.Slant|paint.Twill, 5)
canvas.Bar(100, 250, 299, 269)
file, _ := os.Create("region.png")
defer file.Close()
png.Encode(file, canvas)
}
