gg

package module

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Versions in this module

v1

v1.3.1

Jun 11, 2019

Changes in this version

type Context

+ func (dc *Context) SaveJPG(path string, quality int) error

v1.3.0

Feb 20, 2019

Changes in this version

+ func LoadJPG(path string) (image.Image, error)

+ func SaveJPG(path string, im image.Image, quality int) error

type Context

+ func (dc *Context) GetCurrentPoint() (Point, bool)

+ func (dc *Context) SetDashOffset(offset float64)

v1.2.0

Jan 14, 2019

Changes in this version

type Context

+ func (dc *Context) InvertMask()

+ func (dc *Context) MeasureMultilineString(s string, lineSpacing float64) (width, height float64)

v1.1.0

Mar 16, 2018

Changes in this version

type Context

+ func (dc *Context) AsMask() *image.Alpha

+ func (dc *Context) FontHeight() float64

+ func (dc *Context) SetMask(mask *image.Alpha) error

v1.0.0

Dec 21, 2016

Changes in this version

+ func Degrees(radians float64) float64

+ func LoadFontFace(path string, points float64) (font.Face, error)

+ func LoadImage(path string) (image.Image, error)

+ func LoadPNG(path string) (image.Image, error)

+ func Radians(degrees float64) float64

+ func SavePNG(path string, im image.Image) error

+ type Align int

+ const AlignCenter

+ const AlignLeft

+ const AlignRight

+ type Context struct

+ func NewContext(width, height int) *Context

+ func NewContextForImage(im image.Image) *Context

+ func NewContextForRGBA(im *image.RGBA) *Context

+ func (dc *Context) Clear()

+ func (dc *Context) ClearPath()

+ func (dc *Context) Clip()

+ func (dc *Context) ClipPreserve()

+ func (dc *Context) ClosePath()

+ func (dc *Context) CubicTo(x1, y1, x2, y2, x3, y3 float64)

+ func (dc *Context) DrawArc(x, y, r, angle1, angle2 float64)

+ func (dc *Context) DrawCircle(x, y, r float64)

+ func (dc *Context) DrawEllipse(x, y, rx, ry float64)

+ func (dc *Context) DrawEllipticalArc(x, y, rx, ry, angle1, angle2 float64)

+ func (dc *Context) DrawImage(im image.Image, x, y int)

+ func (dc *Context) DrawImageAnchored(im image.Image, x, y int, ax, ay float64)

+ func (dc *Context) DrawLine(x1, y1, x2, y2 float64)

+ func (dc *Context) DrawPoint(x, y, r float64)

+ func (dc *Context) DrawRectangle(x, y, w, h float64)

+ func (dc *Context) DrawRegularPolygon(n int, x, y, r, rotation float64)

+ func (dc *Context) DrawRoundedRectangle(x, y, w, h, r float64)

+ func (dc *Context) DrawString(s string, x, y float64)

+ func (dc *Context) DrawStringAnchored(s string, x, y, ax, ay float64)

+ func (dc *Context) DrawStringWrapped(s string, x, y, ax, ay, width, lineSpacing float64, align Align)

+ func (dc *Context) EncodePNG(w io.Writer) error

+ func (dc *Context) Fill()

+ func (dc *Context) FillPreserve()

+ func (dc *Context) Height() int

+ func (dc *Context) Identity()

+ func (dc *Context) Image() image.Image

+ func (dc *Context) InvertY()

+ func (dc *Context) LineTo(x, y float64)

+ func (dc *Context) LoadFontFace(path string, points float64) error

+ func (dc *Context) MeasureString(s string) (w, h float64)

+ func (dc *Context) MoveTo(x, y float64)

+ func (dc *Context) NewSubPath()

+ func (dc *Context) Pop()

+ func (dc *Context) Push()

+ func (dc *Context) QuadraticTo(x1, y1, x2, y2 float64)

+ func (dc *Context) ResetClip()

+ func (dc *Context) Rotate(angle float64)

+ func (dc *Context) RotateAbout(angle, x, y float64)

+ func (dc *Context) SavePNG(path string) error

+ func (dc *Context) Scale(x, y float64)

+ func (dc *Context) ScaleAbout(sx, sy, x, y float64)

+ func (dc *Context) SetColor(c color.Color)

+ func (dc *Context) SetDash(dashes ...float64)

+ func (dc *Context) SetFillRule(fillRule FillRule)

+ func (dc *Context) SetFillRuleEvenOdd()

+ func (dc *Context) SetFillRuleWinding()

+ func (dc *Context) SetFillStyle(pattern Pattern)

+ func (dc *Context) SetFontFace(fontFace font.Face)

+ func (dc *Context) SetHexColor(x string)

+ func (dc *Context) SetLineCap(lineCap LineCap)

+ func (dc *Context) SetLineCapButt()

+ func (dc *Context) SetLineCapRound()

+ func (dc *Context) SetLineCapSquare()

+ func (dc *Context) SetLineJoin(lineJoin LineJoin)

+ func (dc *Context) SetLineJoinBevel()

+ func (dc *Context) SetLineJoinRound()

+ func (dc *Context) SetLineWidth(lineWidth float64)

+ func (dc *Context) SetPixel(x, y int)

+ func (dc *Context) SetRGB(r, g, b float64)

+ func (dc *Context) SetRGB255(r, g, b int)

+ func (dc *Context) SetRGBA(r, g, b, a float64)

+ func (dc *Context) SetRGBA255(r, g, b, a int)

+ func (dc *Context) SetStrokeStyle(pattern Pattern)

+ func (dc *Context) Shear(x, y float64)

+ func (dc *Context) ShearAbout(sx, sy, x, y float64)

+ func (dc *Context) Stroke()

+ func (dc *Context) StrokePreserve()

+ func (dc *Context) TransformPoint(x, y float64) (tx, ty float64)

+ func (dc *Context) Translate(x, y float64)

+ func (dc *Context) Width() int

+ func (dc *Context) WordWrap(s string, w float64) []string

+ type FillRule int

+ const FillRuleEvenOdd

+ const FillRuleWinding

+ type Gradient interface

+ AddColorStop func(offset float64, color color.Color)

+ func NewLinearGradient(x0, y0, x1, y1 float64) Gradient

+ func NewRadialGradient(x0, y0, r0, x1, y1, r1 float64) Gradient

+ type LineCap int

+ const LineCapButt

+ const LineCapRound

+ const LineCapSquare

+ type LineJoin int

+ const LineJoinBevel

+ const LineJoinRound

+ type Matrix struct

+ X0 float64

+ XX float64

+ XY float64

+ Y0 float64

+ YX float64

+ YY float64

+ 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 interface

+ ColorAt func(x, y int) color.Color

+ func NewSolidPattern(color color.Color) Pattern

+ func NewSurfacePattern(im image.Image, op RepeatOp) Pattern

+ type Point struct

+ X float64

+ Y float64

+ func CubicBezier(x0, y0, x1, y1, x2, y2, x3, y3 float64) []Point

+ func QuadraticBezier(x0, y0, x1, y1, x2, y2 float64) []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 int

+ const RepeatBoth

+ const RepeatNone

+ const RepeatX

+ const RepeatY

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