util

Documentation

Index

• Constants
• func DPrintf(format string, a ...interface{}) (n int, err error)
• func DecodeImage(data string) (image.Image, error)
• func EncodeImage(img image.Image) (string, error)
• func GetImageDimensions(img image.Image) (int, int)
• func GetRandomImage() image.Image
• func GetSubImage(img image.Image, rect image.Rectangle) image.Image
• func GrayImg(img image.Image) *image.Gray
• func ImgDiff(ai, bi, e image.Image) float64
• func RandomColor(rng *rand.Rand) color.RGBA
• func RandomColorFromPalette(rng *rand.Rand, palette []color.RGBA) color.RGBA
• func RandomRadius(rng *rand.Rand, radius float64) float64
• func RandomRotation(rng *rand.Rand) float64
• func RgbaImg(img image.Image) *image.RGBA
• func SquareDifference(x, y float64) float64
• type Image
• type Vector
  • func RandomVector(rng *rand.Rand, bounds Vector, scale int) Vector

Constants

const Debug = 1

Debugging

Functions

func DPrintf

func DPrintf(format string, a ...interface{}) (n int, err error)

func DecodeImage

func DecodeImage(data string) (image.Image, error)

DecodeImage decodes a base64 and returns an image

func EncodeImage

func EncodeImage(img image.Image) (string, error)

EncodeImage encodes an image as png base64 string

func GetImageDimensions

func GetImageDimensions(img image.Image) (int, int)

func GetRandomImage

func GetRandomImage() image.Image

func GetSubImage

func GetSubImage(img image.Image, rect image.Rectangle) image.Image

func GrayImg

func GrayImg(img image.Image) *image.Gray

func ImgDiff

func ImgDiff(ai, bi, e image.Image) float64

func RandomColor

func RandomColor(rng *rand.Rand) color.RGBA

func RandomColorFromPalette

func RandomColorFromPalette(rng *rand.Rand, palette []color.RGBA) color.RGBA

func RandomRadius

func RandomRadius(rng *rand.Rand, radius float64) float64

func RandomRotation

func RandomRotation(rng *rand.Rand) float64

func RgbaImg

func RgbaImg(img image.Image) *image.RGBA

func SquareDifference

func SquareDifference(x, y float64) float64

Types

type Image

type Image struct {
	Image  image.Image
	Width  int
	Height int
}

type Vector

type Vector struct {
	X float64 `json:"x"`
	Y float64 `json:"y"`
}

func RandomVector

func RandomVector(rng *rand.Rand, bounds Vector, scale int) Vector