svg

package
v0.0.2 Latest Latest
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 Go to latest Published: Mar 7, 2023 License: MIT Imports: 8 Imported by: 0

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Index

Constants

This section is empty.

Variables

View Source 
var (
	Default = DPI{
		// contains filtered or unexported fields
	}
)
View Source 
var (
	ZeroPoint = NewPoint(0, 0)
)

Functions

This section is empty.

Types

type Circle 

type Circle struct {
	CenterX float64 `xml:"cx,attr"`
	CenterY float64 `xml:"cy,attr"`
	Radius  float64 `xml:"r,attr"`
	// contains filtered or unexported fields
}

func (*Circle) Draw 

func (c *Circle) Draw() (sdf.SDF2, error)

type ClosePath 

type ClosePath struct{}

func NewClosePath 

func NewClosePath() *ClosePath

func (*ClosePath) DrawTo 

func (m *ClosePath) DrawTo(b *sdf.Bezier)

func (*ClosePath) MM 

func (m *ClosePath) MM(dpi DPI)

func (*ClosePath) Matrix 

func (m *ClosePath) Matrix(matrix *Matrix)

type CubicBezier 

type CubicBezier struct {
	Start Point
	Mid   Point
	End   Point
}

func NewCubicBezier 

func NewCubicBezier(start, mid, end Point) *CubicBezier

func (*CubicBezier) DrawTo 

func (cb *CubicBezier) DrawTo(b *sdf.Bezier)

func (*CubicBezier) MM 

func (cb *CubicBezier) MM(dpi DPI)

func (*CubicBezier) Matrix 

func (cb *CubicBezier) Matrix(matrix *Matrix)

type DPI 

type DPI struct {
	// contains filtered or unexported fields
}

func NewDPI 

func NewDPI(dpi float64) DPI

func NewDPIWithSize 

func NewDPIWithSize(pixel, mm float64) DPI

func (DPI) DPI 

func (d DPI) DPI() float64

func (DPI) MM 

func (d DPI) MM(pixel float64) float64

MM transforms pixel to mm.

func (DPI) Pixel 

func (d DPI) Pixel(mm float64) float64

Pixel transforms mm to pixel.

func (DPI) String 

func (d DPI) String() string

type Drawable 

type Drawable interface {
	Matrix(matrix *Matrix)
	MM(dpi DPI)
	DrawTo(b *sdf.Bezier)
}

type Graphic 

type Graphic struct {
	ID     string
	Matrix *Matrix

	Paths    []*Path
	Rects    []*Rect
	Circles  []*Circle
	Graphics []*Graphic
	// contains filtered or unexported fields
}

func (*Graphic) Draw 

func (gr *Graphic) Draw() (sdf.SDF2, error)

func (*Graphic) Find 

func (gr *Graphic) Find(id string) *Graphic

func (*Graphic) UnmarshalXML 

func (gr *Graphic) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error

type LineTo 

type LineTo struct {
	Point Point
}

func NewLineTo 

func NewLineTo(p Point) *LineTo

func (*LineTo) DrawTo 

func (l *LineTo) DrawTo(b *sdf.Bezier)

func (*LineTo) MM 

func (l *LineTo) MM(dpi DPI)

func (*LineTo) Matrix 

func (l *LineTo) Matrix(matrix *Matrix)

type Matrix 

type Matrix struct {
	A float64
	B float64
	C float64
	D float64
	E float64
	F float64
}

Matrix is equivalent to applying the transform matrix: | A C E | | B D F | | 0 0 1 |

func NewMatrix 

func NewMatrix(a, b, c, d, e, f float64) *Matrix

func (*Matrix) Dot 

func (m *Matrix) Dot(matrix *Matrix) *Matrix

Dot multiply 2 matrix: | A C E | | a c e | | Aa+Cb Ac+Cd Ae+Cf+E | | B D F | * | b d f | = | Ba+Db Bc+Dd Be+Df+F | | 0 0 1 | | 0 0 1 | | 0 0 1 |

type MoveTo 

type MoveTo struct {
	Point Point
}

func NewMoveTo 

func NewMoveTo(p Point) *MoveTo

func (*MoveTo) DrawTo 

func (m *MoveTo) DrawTo(b *sdf.Bezier)

func (*MoveTo) MM 

func (m *MoveTo) MM(dpi DPI)

func (*MoveTo) Matrix 

func (m *MoveTo) Matrix(matrix *Matrix)

type NotFoundError 

type NotFoundError string

func (NotFoundError) Error 

func (err NotFoundError) Error() string

type Option 

type Option struct {
	DPI DPI
}

type Path 

type Path struct {
	Drawables      []Drawable
	Stroke         string
	StrokeLinecap  string
	StrokeLineJoin string
	// contains filtered or unexported fields
}

func (*Path) ToBeziers 

func (pa *Path) ToBeziers(m *Matrix) ([]*sdf.Bezier, error)

func (*Path) UnmarshalXML 

func (pa *Path) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error

type Point 

type Point struct {
	X float64
	Y float64
}

func NewPoint 

func NewPoint(x float64, y float64) Point

func (Point) Add 

func (pt Point) Add(point Point) Point

func (Point) MM 

func (pt Point) MM(dpi DPI) Point

func (Point) Matrix 

func (pt Point) Matrix(m *Matrix) Point

Matrix transforms coordinates from a previous coordinate system into a new coordinate system by following matrix equalities: | A C E | | X | | AX+CY+E | | B D F | * | Y | = | BX+DY+F | | 0 0 1 | | 1 | | 1 |

type Rect 

type Rect struct {
	X      float64 `xml:"x,attr"`
	Y      float64 `xml:"y,attr"`
	Width  float64 `xml:"width,attr"`
	Height float64 `xml:"height,attr"`
	// contains filtered or unexported fields
}

func (*Rect) Draw 

func (r *Rect) Draw() (sdf.SDF2, error)

type SVG 

type SVG struct {
	Width    string     `xml:"width,attr"`
	Height   string     `xml:"height,attr"`
	ViewBox  string     `xml:"viewBox,attr"`
	Fill     string     `xml:"fill,attr"`
	XMLNS    string     `xml:"xmlns,attr"`
	Graphics []*Graphic `xml:"g"`
	// contains filtered or unexported fields
}

func New 

func New(r io.Reader, option *Option) (*SVG, error)

func (*SVG) Find 

func (svg *SVG) Find(id string) (*Graphic, error)

Source Files

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