backendbase

May 28, 2020

Changes in this version

+ var MatIdentity = Mat

+ type Mat [6]float64

+ func MatRotate(radians float64) Mat

+ func MatScale(v Vec) Mat

+ func MatTranslate(v Vec) Mat

+ func (m *Mat) String() string

+ func (m Mat) Invert() Mat

+ func (m Mat) Mat2() Mat2

+ func (m Mat) Mul(m2 Mat) Mat

+ type Mat2 [4]float64

+ func (m *Mat2) String() string

+ type Vec [2]float64

+ func (v Vec) Add(v2 Vec) Vec

+ func (v Vec) Angle() float64

+ func (v Vec) AngleTo(v2 Vec) float64

+ func (v Vec) Atan2() float64

+ func (v Vec) Div(v2 Vec) Vec

+ func (v Vec) Divf(f float64) Vec

+ func (v Vec) Dot(v2 Vec) float64

+ func (v Vec) Len() float64

+ func (v Vec) LenSqr() float64

+ func (v Vec) Mul(v2 Vec) Vec

+ func (v Vec) MulMat(m Mat) Vec

+ func (v Vec) MulMat2(m Mat2) Vec

+ func (v Vec) Mulf(f float64) Vec

+ func (v Vec) Norm() Vec

+ func (v Vec) String() string

+ func (v Vec) Sub(v2 Vec) Vec

Apr 25, 2019

Changes in this version

type ImagePatternData

+ Repeat ImagePatternRepeat

+ Transform [9]float64

+ type ImagePatternRepeat uint8

+ const NoRepeat

+ const Repeat

+ const RepeatX

+ const RepeatY

Mar 30, 2019

Changes in this version

type Backend

+ LoadImagePattern func(data ImagePatternData) ImagePattern

type FillStyle

+ ImagePattern ImagePattern

+ type ImagePattern interface

+ Delete func()

+ Replace func(data ImagePatternData)

+ type ImagePatternData struct

+ Image Image

Mar 20, 2019

Changes in this version

+ type Backend interface

+ AsImage func() Image

+ CanUseAsImage func(b Backend) bool

+ Clear func(pts [4][2]float64)

+ ClearClip func()

+ Clip func(pts [][2]float64)

+ DrawImage func(dimg Image, sx, sy, sw, sh float64, pts [4][2]float64, alpha float64)

+ Fill func(style *FillStyle, pts [][2]float64)

+ FillImageMask func(style *FillStyle, mask *image.Alpha, pts [][2]float64)

+ GetImageData func(x, y, w, h int) *image.RGBA

+ LoadImage func(img image.Image) (Image, error)

+ LoadLinearGradient func(data Gradient) LinearGradient

+ LoadRadialGradient func(data Gradient) RadialGradient

+ PutImageData func(img *image.RGBA, x, y int)

+ Size func() (int, int)

+ type FillStyle struct

+ Blur float64

+ Color color.RGBA

+ Gradient struct{ ... }

+ Image Image

+ LinearGradient LinearGradient

+ RadialGradient RadialGradient

+ type Gradient []GradientStop

+ func (g Gradient) ColorAt(pos float64) color.RGBA

+ type GradientStop struct

+ Color color.RGBA

+ Pos float64

+ type Image interface

+ Delete func()

+ Height func() int

+ Replace func(src image.Image) error

+ Size func() (w, h int)

+ Width func() int

+ type LinearGradient interface

+ Delete func()

+ Replace func(data Gradient)

+ type RadialGradient interface

+ Delete func()

+ Replace func(data Gradient)