util

func AspectRatio ¶

func AspectRatio(img image.Image) image.Point

AspectRatio calculates the minimal aspect ratio of the given image

func ConvertTiles ¶

func ConvertTiles(imageAspectRatio, tileAspectRatio image.Point, targetTileCount int) image.Point

func LogTime ¶

func LogTime(s string) func()

LogTime creates a simple time logger

func MinTiles ¶

func MinTiles(imageAspectRatio image.Point, tileAspectRatio image.Point) image.Point

Calculate the minimum number of tiles in each direction to go from the tile aspect ratio to the image aspect ratio

func NearestSaneAspectRatio ¶

func NearestSaneAspectRatio(aspectRatio image.Point) image.Point

func ParseAspectRatioString ¶

func ParseAspectRatioString(aspectRatio string) (image.Point, error)

func Paste ¶

func Paste(dst, src *image.NRGBA, loc image.Point, blend float64) error

Paste the src image into the dst image at the given location on the dst image. returns an error if the src image would not fit