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Documentation

Index

• func CoreAlphaLinear(_, y int, _, h int) (uint8, uint8, uint8, uint8)
• func Gen(coref CoreFunc, width int, height int, outfile string) error
• type CoreFunc

Functions

func CoreAlphaLinear

func CoreAlphaLinear(_, y int, _, h int) (uint8, uint8, uint8, uint8)

核函数：alpha线性渐变 offset：根据高度向下偏移 step：实际作用高度 maxAlpha：渐变时alpha最大值 return：rgba

func Gen

func Gen(coref CoreFunc, width int, height int, outfile string) error

生成蒙版

Types

type CoreFunc

type CoreFunc func(x, y int, w, h int) (r uint8, g uint8, b uint8, a uint8)

核函数