image

README

Golang image processer

Documentation

Index

• Variables
• type Canvas
  • func NewCanvas(w int, h int, elements ...Element) *Canvas
  • func (c *Canvas) Draw() (*Canvas, error)
  • func (c *Canvas) SaveJPG(path string, quality int) error
  • func (c *Canvas) SavePNG(path string) error
  • func (c *Canvas) SetBackgroundColor(color color.Color) *Canvas
• type Element

Variables

var DefaultBackgroundColor = color.White

var DefaultColor = color.Black

var DefaultFont = "NotoSerifCJKsc-Regular.otf"

var DefaultFontSize float64 = 16

var DefaultLineSpacing float64 = 1

Types

type Canvas

type Canvas struct {
	*gg.Context
	// contains filtered or unexported fields
}

func NewCanvas

func NewCanvas(w int, h int, elements ...Element) *Canvas

func (*Canvas) Draw

func (c *Canvas) Draw() (*Canvas, error)

func (*Canvas) SaveJPG

func (c *Canvas) SaveJPG(path string, quality int) error

SaveJPG encodes the image as a JPG and writes it to disk.

func (*Canvas) SavePNG

func (c *Canvas) SavePNG(path string) error

SavePNG encodes the image as a PNG and writes it to disk.

func (*Canvas) SetBackgroundColor

func (c *Canvas) SetBackgroundColor(color color.Color) *Canvas

type Element

type Element interface {
	Draw(ctx *gg.Context) error
}