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Index ¶

• func DitherPixel(grayLevel int, x, y int) color.Color
• func DrawTestPattern(img *image.Gray, width, height int)
• func DrawTestPatternBW(img *image.Gray, width, height int)
• func LoadFontFace(path string, points float64) (font.Face, error)
• func SavePNG(path string, im image.Image) error
• type Context
• • func NewContext(width, height int) *Context
  • func NewContextForGray(im *image.Gray) *Context
• • func (dc *Context) Clear()
  • func (dc *Context) DrawStringAnchored(s string, x, y, ax, ay float64)
  • func (dc *Context) LoadFontFace(path string, points float64) error
  • func (dc *Context) MeasureString(s string) (w, h float64)
  • func (dc *Context) SavePNG(path string) error
  • func (dc *Context) SetRGB(r float64)
  • func (dc *Context) SetRGBA(r float64)
• type FillRule
• type LineCap
• type LineJoin
• type Matrix
• • func Identity() Matrix
  • func Rotate(angle float64) Matrix
  • func Scale(x, y float64) Matrix
  • func Shear(x, y float64) Matrix
  • func Translate(x, y float64) Matrix
• • func (a Matrix) Multiply(b Matrix) Matrix
  • func (a Matrix) Rotate(angle float64) Matrix
  • func (a Matrix) Scale(x, y float64) Matrix
  • func (a Matrix) Shear(x, y float64) Matrix
  • func (a Matrix) TransformPoint(x, y float64) (tx, ty float64)
  • func (a Matrix) TransformVector(x, y float64) (tx, ty float64)
  • func (a Matrix) Translate(x, y float64) Matrix
• type Pattern
• • func NewSolidPattern(color color.Color) Pattern
• type Point
• • func (a Point) Distance(b Point) float64
  • func (a Point) Fixed() fixed.Point26_6
  • func (a Point) Interpolate(b Point, t float64) Point
• type RepeatOp