svg

Documentation

Index

• func BezierCurveSegment(p1, p2, p3, p4 *geo.Point, t0, t1 float64) (geo.Point, geo.Point, geo.Point, geo.Point)
• func EscapeText(text string) string
• func GetStrokeDashAttributes(strokeWidth, dashGapSize float64) (float64, float64)
• func SplitPath(path string, percentage float64) (string, string, error)
• type SvgPathContext
  • func NewSVGPathContext(tl *geo.Point, sx, sy float64) *SvgPathContext
  • func (c *SvgPathContext) Absolute(x, y float64) *geo.Point
  • func (c *SvgPathContext) C(isLowerCase bool, x1, y1, x2, y2, x3, y3 float64)
  • func (c *SvgPathContext) H(isLowerCase bool, x float64)
  • func (c *SvgPathContext) L(isLowerCase bool, x, y float64)
  • func (c *SvgPathContext) PathData() string
  • func (c *SvgPathContext) Relative(base *geo.Point, dx, dy float64) *geo.Point
  • func (c *SvgPathContext) StartAt(p *geo.Point)
  • func (c *SvgPathContext) V(isLowerCase bool, y float64)
  • func (c *SvgPathContext) Z()

Functions

func BezierCurveSegment

func BezierCurveSegment(p1, p2, p3, p4 *geo.Point, t0, t1 float64) (geo.Point, geo.Point, geo.Point, geo.Point)

Given control points p1, p2, p3, p4, calculate the segment of this bezier curve from t0 -> t1 where {0 <= t0 < t1 <= 1}. Uses De Casteljau's algorithm, referenced: https://stackoverflow.com/questions/11703283/cubic-bezier-curve-segment/11704152#11704152

func EscapeText

func EscapeText(text string) string

func GetStrokeDashAttributes

func GetStrokeDashAttributes(strokeWidth, dashGapSize float64) (float64, float64)

func SplitPath

func SplitPath(path string, percentage float64) (string, string, error)

Splits an SVG path into two SVG paths, with the first path being ~{percentage}% of the path

Types

type SvgPathContext

type SvgPathContext struct {
	Path     []geo.Intersectable
	Commands []string
	Start    *geo.Point
	Current  *geo.Point
	TopLeft  *geo.Point
	ScaleX   float64
	ScaleY   float64
}

func NewSVGPathContext

func NewSVGPathContext(tl *geo.Point, sx, sy float64) *SvgPathContext

func (*SvgPathContext) Absolute

func (c *SvgPathContext) Absolute(x, y float64) *geo.Point

func (*SvgPathContext) C

func (c *SvgPathContext) C(isLowerCase bool, x1, y1, x2, y2, x3, y3 float64)

func (*SvgPathContext) H

func (c *SvgPathContext) H(isLowerCase bool, x float64)

func (*SvgPathContext) L

func (c *SvgPathContext) L(isLowerCase bool, x, y float64)

func (*SvgPathContext) PathData

func (c *SvgPathContext) PathData() string

func (*SvgPathContext) Relative

func (c *SvgPathContext) Relative(base *geo.Point, dx, dy float64) *geo.Point

func (*SvgPathContext) StartAt

func (c *SvgPathContext) StartAt(p *geo.Point)

func (*SvgPathContext) V

func (c *SvgPathContext) V(isLowerCase bool, y float64)

func (*SvgPathContext) Z

func (c *SvgPathContext) Z()