svg

package module
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 Go to latest Published: Apr 24, 2024 License: CC-BY-3.0 Imports: 4 Imported by: 0

README

#SVGo: A Go library for SVG generation#

The library generates SVG as defined by the Scalable Vector Graphics 1.1 Specification (http://www.w3.org/TR/SVG11/). Output goes to the specified io.Writer.

Supported SVG elements and functions

circle, ellipse, polygon, polyline, rect (including roundrects), paths (general, arc, cubic and quadratic bezier paths), line, image, text, linearGradient, radialGradient, transforms (translate, rotate, scale, skewX, skewY)

Metadata elements

desc, defs, g (style, transform, id), mask, title, (a)ddress, link, script, use

Building and Usage

See svgdef.[svg|png|pdf] for a graphical view of the function calls

Usage:

goinstall github.com/ajstarks/svgo

to install into your Go environment. To update the library you can use:

goinstall -clean -u -v github.com/ajstarks/svgo

a minimal program, to generate SVG to standard output.

package main

import (
	"github.com/ajstarks/svgo"
	"os"
)

func main() {
	width := 500
	height := 500
	canvas := svg.New(os.Stdout)
	canvas.Start(width, height)
	canvas.Circle(width/2, height/2, 100)
	canvas.Text(width/2, height/2, "Hello, SVG", "text-anchor:middle;font-size:30px;fill:white")
	canvas.End()
}

Drawing in a web server: (http://localhost:2003/circle)

package main

import (
	"log"
	"github.com/ajstarks/svgo"
	"net/http"
)

func main() {
	http.Handle("/circle", http.HandlerFunc(circle))
	err := http.ListenAndServe(":2003", nil)
	if err != nil {
		log.Fatal("ListenAndServe:", err)
	}
}

func circle(w http.ResponseWriter, req *http.Request) {
  w.Header().Set("Content-Type", "image/svg+xml")
  s := svg.New(w)
  s.Start(500, 500)
  s.Circle(250, 250, 125, "fill:none;stroke:black")
  s.End()
}

You may view the SVG output with a browser that supports SVG (tested on Chrome, Opera, Firefox and Safari), or any other SVG user-agent such as Batik Squiggle. The test-svgo script tries to use reasonable defaults based on the GOOS and GOARCH environment variables.

The command:

$ ./newsvg foo.go

creates Go source file ready for your code, using $EDITOR

To create browsable documentation:

$ godoc -path=<svgo directory> -<http=:6060>

and click on the "Package documentation for svg" link

Tutorial Video

A video describing how to use the package can be seen on YouTube at http://www.youtube.com/watch?v=ze6O2Dj5gQ4

Package contents

  • svg.go: Library
  • newsvg: Coding template command
  • svgdef: Creates a SVG representation of the API
  • android: The Android logo
  • bubtrail: Bubble trails
  • bulletgraph: Bullet Graphs (via Stephen Few)
  • colortab: Display SVG named colors with RGB values
  • compx: Component diagrams
  • flower: Random "flowers"
  • fontcompare: Compare two fonts
  • f50: Get 50 photos from Flickr based on a query
  • funnel: Funnel from transparent circles
  • gradient: Linear and radial gradients
  • html5logo: HTML5 logo with draggable elements
  • imfade: Show image fading
  • lewitt: Version of Sol Lewitt's Wall Drawing 91
  • ltr: Layer Tennis Remixes
  • paths Demonstrate SVG paths
  • planets: Show the scale of the Solar system
  • pmap: Proportion maps
  • randcomp: Compare random number generators
  • richter: Gerhard Richter's 256 colors
  • rl: Random lines (port of a Processing demo)
  • skewabc: Skew ABC
  • stockproduct: Visualize product and stock prices
  • svgopher: SVGo Mascot
  • tsg: Twitter Search Grid
  • vismem: Visualize data from files
  • webfonts: "Hello, World" with Google Web Fonts
  • websvg: Generate SVG as a web server

Functions and types

Many functions use x, y to specify an object's location, and w, h to specify the object's width and height. Where applicable, a final optional argument specifies the style to be applied to the object. The style strings follow the SVG standard; name:value pairs delimited by semicolons, or a series of name="value" pairs. For example: "fill:none; opacity:0.3" or fill="none" opacity="0.3" (see: http://www.w3.org/TR/SVG11/styling.html)

The Offcolor type:

type Offcolor struct {
	Offset  uint8
	Color   string
	Opacity float
}

is used to specify the offset, color, and opacity of stop colors in linear and radial gradients

New(w io.Writer) *SVG

Constructor, Specify the output destination.

Start(w int, h int, attributes ...string)

begin the SVG document with the width w and height h. Optionally add additional elememts (such as additional namespaces or scripting events) http://www.w3.org/TR/SVG11/struct.html#SVGElement

Startview(w, h, minx, miny, vw, vh int)

begin the SVG document with the width w, height h, with a viewBox at minx, miny, vw, vh. http://www.w3.org/TR/SVG11/struct.html#SVGElement

End()

end the SVG document

Script(scriptype string, data ...string)

Script defines a script with a specified type, (for example "application/javascript"). if the first variadic argument is a link, use only the link reference. Otherwise, treat variadic arguments as the text of the script (marked up as CDATA). if no data is specified, simply close the script element. http://www.w3.org/TR/SVG/script.html

Group(s ...string)

begin a group, with arbitrary attributes http://www.w3.org/TR/SVG11/struct.html#GElement

Gstyle(s string)

begin a group, with the specified style. http://www.w3.org/TR/SVG11/struct.html#GElement

Gid(s string)

begin a group, with the specified id.

Gtransform(s string)

begin a group, with the specified transform, end with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

Translate(x, y int)

begins coordinate translation to (x,y), end with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

Scale(n float64)

scales the coordinate system by n, end with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

ScaleXY(x, y float64)

scales the coordinate system by x, y. End with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

SkewX(a float64)

SkewX skews the x coordinate system by angle a, end with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

SkewY(a float64)

SkewY skews the y coordinate system by angle a, end with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

SkewXY(ax, ay float64)

SkewXY skews x and y coordinate systems by ax, ay respectively, end with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

Rotate(r float64)

rotates the coordinate system by r degrees, end with Gend(). http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

TranslateRotate(x, y int, r float64)

translates the coordinate system to (x,y), then rotates to r degrees, end with Gend().

RotateTranslate(x, y int, r float64)

rotates the coordinate system r degrees, then translates to (x,y), end with Gend().

Gend()

end the group (must be paired with Gstyle, Gtransform, Gid).

ClipPath(s ...string)

Begin a ClipPath http://www.w3.org/TR/SVG/masking.html#ClippingPaths

ClipEnd()

End a ClipPath http://www.w3.org/TR/SVG/masking.html#ClippingPaths

Def()

begin a definition block. http://www.w3.org/TR/SVG11/struct.html#DefsElement

DefEnd()

end a definition block.

Mask(string, x int, y int, w int, h int, s ...string)

creates a mask with a specified id, dimension, and optional style. http://www.w3.org/TR/SVG/masking.html

MaskEnd()

ends the Mask element.

Desc(s string)

specify the text of the description. http://www.w3.org/TR/SVG11/struct.html#DescElement

Title(s string)

specify the text of the title. http://www.w3.org/TR/SVG11/struct.html#TitleElement

Link(href string, title string)

begin a link named "href", with the specified title. http://www.w3.org/TR/SVG11/linking.html#Links

LinkEnd()

end the link.

Use(x int, y int, link string, s ...string)

place the object referenced at link at the location x, y. http://www.w3.org/TR/SVG11/struct.html#UseElement

Shapes

Circle(x int, y int, r int, s ...string)

draw a circle, centered at x,y with radius r. http://www.w3.org/TR/SVG11/shapes.html#CircleElement

Circle

Ellipse(x int, y int, w int, h int, s ...string)

draw an ellipse, centered at x,y with radii w, and h. http://www.w3.org/TR/SVG11/shapes.html#EllipseElement

Ellipse

Polygon(x []int, y []int, s ...string)

draw a series of line segments using an array of x, y coordinates. http://www.w3.org/TR/SVG11/shapes.html#PolygonElement

Polygon

Rect(x int, y int, w int, h int, s ...string)

draw a rectangle with upper left-hand corner at x,y, with width w, and height h. http://www.w3.org/TR/SVG11/shapes.html#RectElement

Rect

CenterRect(x int, y int, w int, h int, s ...string)

draw a rectangle with its center at x,y, with width w, and height h.

Roundrect(x int, y int, w int, h int, rx int, ry int, s ...string)

draw a rounded rectangle with upper the left-hand corner at x,y, with width w, and height h. The radii for the rounded portion is specified by rx (width), and ry (height).

Roundrect

Square(x int, y int, s int, style ...string)

draw a square with upper left corner at x,y with sides of length s.

Square

Paths

Path(p string, s ...style)

draw the arbitrary path as specified in p, according to the style specified in s. http://www.w3.org/TR/SVG11/paths.html

Arc(sx int, sy int, ax int, ay int, r int, large bool, sweep bool, ex int, ey int, s ...string)

draw an elliptical arc beginning coordinate at sx,sy, ending coordinate at ex, ey width and height of the arc are specified by ax, ay, the x axis rotation is r

if sweep is true, then the arc will be drawn in a "positive-angle" direction (clockwise), if false, the arc is drawn counterclockwise.

if large is true, the arc sweep angle is greater than or equal to 180 degrees, otherwise the arc sweep is less than 180 degrees. http://www.w3.org/TR/SVG11/paths.html#PathDataEllipticalArcCommands

Arc

Bezier(sx int, sy int, cx int, cy int, px int, py int, ex int, ey int, s ...string)

draw a cubic bezier curve, beginning at sx,sy, ending at ex,ey with control points at cx,cy and px,py. http://www.w3.org/TR/SVG11/paths.html#PathDataCubicBezierCommands

Bezier

Qbezier(sx int, sy int, cx int, cy int, ex int, ey int, tx int, ty int, s ...string)

draw a quadratic bezier curve, beginning at sx, sy, ending at tx,ty with control points are at cx,cy, ex,ey. http://www.w3.org/TR/SVG11/paths.html#PathDataQuadraticBezierCommands

Qbezier

Qbez(sx int, sy int, cx int, cy int, ex int, ey int, s...string)

draws a quadratic bezier curver, with optional style beginning at sx,sy, ending at ex, sy with the control point at cx, cy. http://www.w3.org/TR/SVG11/paths.html#PathDataQuadraticBezierCommands

Qbez

Lines

Line(x1 int, y1 int, x2 int, y2 int, s ...string)

draw a line segment between x1,y1 and x2,y2. http://www.w3.org/TR/SVG11/shapes.html#LineElement

Line

Polyline(x []int, y []int, s ...string)

draw a polygon using coordinates specified in x,y arrays. http://www.w3.org/TR/SVG11/shapes.html#PolylineElement

Polyline

Image and Text

Image(x int, y int, w int, h int, link string, s ...string)

place at x,y (upper left hand corner), the image with width w, and height h, referenced at link. http://www.w3.org/TR/SVG11/struct.html#ImageElement

Image

Text(x int, y int, t string, s ...string)

Place the specified text, t at x,y according to the style specified in s. http://www.w3.org/TR/SVG11/text.html#TextElement

Textlines(x, y int, s []string, size, spacing int, fill, align string)

Places lines of text in s, starting at x,y, at the specified size, fill, and alignment, and spacing.

Textpath(t string, pathid string, s ...string)

places optionally styled text along a previously defined path. http://www.w3.org/TR/SVG11/text.html#TextPathElement Image

Color

RGB(r int, g int, b int) string

creates a style string for the fill color designated by the (r)ed, g(reen), (b)lue components. http://www.w3.org/TR/css3-color/

RGBA(r int, g int, b int, a float64) string

as above, but includes the color's opacity as a value between 0.0 (fully transparent) and 1.0 (opaque).

Gradients

LinearGradient(id string, x1, y1, x2, y2 uint8, sc []Offcolor)

constructs a linear color gradient identified by id, along the vector defined by (x1,y1), and (x2,y2). The stop color sequence defined in sc. Coordinates are expressed as percentages. http://www.w3.org/TR/SVG11/pservers.html#LinearGradients LinearGradient

RadialGradient(id string, cx, cy, r, fx, fy uint8, sc []Offcolor)

constructs a radial color gradient identified by id, centered at (cx,cy), with a radius of r. (fx, fy) define the location of the focal point of the light source. The stop color sequence defined in sc. Coordinates are expressed as percentages. http://www.w3.org/TR/SVG11/pservers.html#RadialGradients RadialGradient

Utility

Grid(x int, y int, w int, h int, n int, s ...string)

draws a grid of straight lines starting at x,y, with a width w, and height h, and a size of n.

Grid

Credits

Thanks to Jonathan Wright for the io.Writer update.

Documentation

Overview

Package svg provides an API for generating Scalable Vector Graphics (SVG)

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Offcolor 

type Offcolor struct {
	Offset  uint8
	Color   string
	Opacity float64
}

type SVG 

type SVG struct {
	Writer io.Writer
}

func New 

func New(w io.Writer) *SVG

New is the SVG constructor, specifying the io.Writer where the generated SVG is written.

func (*SVG) Arc 

func (svg *SVG) Arc(sx int, sy int, ax int, ay int, r int, large bool, sweep bool, ex int, ey int, s ...string)

Arc draws an elliptical arc, with optional style, beginning coordinate at sx,sy, ending coordinate at ex, ey width and height of the arc are specified by ax, ay, the x axis rotation is r if sweep is true, then the arc will be drawn in a "positive-angle" direction (clockwise), if false, the arc is drawn counterclockwise. if large is true, the arc sweep angle is greater than or equal to 180 degrees, otherwise the arc sweep is less than 180 degrees http://www.w3.org/TR/SVG11/paths.html#PathDataEllipticalArcCommands

func (*SVG) Bezier 

func (svg *SVG) Bezier(sx int, sy int, cx int, cy int, px int, py int, ex int, ey int, s ...string)

Bezier draws a cubic bezier curve, with optional style, beginning at sx,sy, ending at ex,ey with control points at cx,cy and px,py. Standard Reference: http://www.w3.org/TR/SVG11/paths.html#PathDataCubicBezierCommands

func (*SVG) CenterRect 

func (svg *SVG) CenterRect(x int, y int, w int, h int, s ...string)

CenterRect draws a rectangle with its center at x,y, with width w, and height h, with optional style

func (*SVG) Circle 

func (svg *SVG) Circle(x int, y int, r int, s ...string)

Circle centered at x,y, with radius r, with optional style. Standard Reference: http://www.w3.org/TR/SVG11/shapes.html#CircleElement

func (*SVG) ClipEnd 

func (svg *SVG) ClipEnd()

ClipEnd ends a ClipPath

func (*SVG) ClipPath 

func (svg *SVG) ClipPath(s ...string)

ClipPath defines a clip path

func (*SVG) Def 

func (svg *SVG) Def()

Def begins a defintion block. Standard Reference: http://www.w3.org/TR/SVG11/struct.html#DefsElement

func (*SVG) DefEnd 

func (svg *SVG) DefEnd()

DefEnd ends a defintion block.

func (*SVG) Desc 

func (svg *SVG) Desc(s string)

Desc specified the text of the description tag. Standard Reference: http://www.w3.org/TR/SVG11/struct.html#DescElement

func (*SVG) Ellipse 

func (svg *SVG) Ellipse(x int, y int, w int, h int, s ...string)

Ellipse centered at x,y, centered at x,y with radii w, and h, with optional style. Standard Reference: http://www.w3.org/TR/SVG11/shapes.html#EllipseElement

func (*SVG) End 

func (svg *SVG) End()

End the SVG document

func (*SVG) Gend 

func (svg *SVG) Gend()

Gend ends a group (must be paired with Gsttyle, Gtransform, Gid).

func (*SVG) Gid 

func (svg *SVG) Gid(s string)

Gid begins a group, with the specified id

func (*SVG) Grid 

func (svg *SVG) Grid(x int, y int, w int, h int, n int, s ...string)

Grid draws a grid at the specified coordinate, dimensions, and spacing, with optional style.

func (*SVG) Group 

func (svg *SVG) Group(s ...string)

Group begins a group with arbitrary attributes

func (*SVG) Gstyle 

func (svg *SVG) Gstyle(s string)

Gstyle begins a group, with the specified style. Standard Reference: http://www.w3.org/TR/SVG11/struct.html#GElement

func (*SVG) Gtransform 

func (svg *SVG) Gtransform(s string)

Gtransform begins a group, with the specified transform Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) Image 

func (svg *SVG) Image(x int, y int, w int, h int, link string, s ...string)

Image places at x,y (upper left hand corner), the image with width w, and height h, referenced at link, with optional style. Standard Reference: http://www.w3.org/TR/SVG11/struct.html#ImageElement

func (*SVG) Line 

func (svg *SVG) Line(x1 int, y1 int, x2 int, y2 int, s ...string)

Line draws a straight line between two points, with optional style. Standard Reference: http://www.w3.org/TR/SVG11/shapes.html#LineElement

func (*SVG) LinearGradient 

func (svg *SVG) LinearGradient(id string, x1, y1, x2, y2 uint8, sc []Offcolor)

LinearGradient constructs a linear color gradient identified by id, along the vector defined by (x1,y1), and (x2,y2). The stop color sequence defined in sc. Coordinates are expressed as percentages. 

func (svg *SVG) Link(href string, title string)

Link begins a link named "name", with the specified title. Standard Reference: http://www.w3.org/TR/SVG11/linking.html#Links

func (*SVG) LinkEnd 

func (svg *SVG) LinkEnd()

LinkEnd ends a link.

func (*SVG) Mask 

func (svg *SVG) Mask(id string, x int, y int, w int, h int, s ...string)

Mask creates a mask with a specified id, dimension, and optional style.

func (*SVG) MaskEnd 

func (svg *SVG) MaskEnd()

MaskEnd ends a Mask.

func (*SVG) Path 

func (svg *SVG) Path(d string, s ...string)

Path draws an arbitrary path, the caller is responsible for structuring the path data

func (*SVG) Polygon 

func (svg *SVG) Polygon(x []int, y []int, s ...string)

Polygon draws a series of line segments using an array of x, y coordinates, with optional style. Standard Reference: http://www.w3.org/TR/SVG11/shapes.html#PolygonElement

func (*SVG) Polyline 

func (svg *SVG) Polyline(x []int, y []int, s ...string)

Polylne draws connected lines between coordinates, with optional style. Standard Reference: http://www.w3.org/TR/SVG11/shapes.html#PolylineElement

func (*SVG) Qbez 

func (svg *SVG) Qbez(sx int, sy int, cx int, cy int, ex int, ey int, s ...string)

Qbez draws a quadratic bezier curver, with optional style beginning at sx,sy, ending at ex, sy with control points at cx, cy Standard Reference: http://www.w3.org/TR/SVG11/paths.html#PathDataQuadraticBezierCommands

func (*SVG) Qbezier 

func (svg *SVG) Qbezier(sx int, sy int, cx int, cy int, ex int, ey int, tx int, ty int, s ...string)

Qbezier draws a Quadratic Bezier curve, with optional style, beginning at sx, sy, ending at tx,ty with control points are at cx,cy, ex,ey. Standard Reference: http://www.w3.org/TR/SVG11/paths.html#PathDataQuadraticBezierCommands

func (*SVG) RGB 

func (svg *SVG) RGB(r int, g int, b int) string

RGB specifies a fill color in terms of a (r)ed, (g)reen, (b)lue triple. Standard reference: http://www.w3.org/TR/css3-color/

func (*SVG) RGBA 

func (svg *SVG) RGBA(r int, g int, b int, a float64) string

RGBA specifies a fill color in terms of a (r)ed, (g)reen, (b)lue triple and opacity.

func (*SVG) RadialGradient 

func (svg *SVG) RadialGradient(id string, cx, cy, r, fx, fy uint8, sc []Offcolor)

RadialGradient constructs a radial color gradient identified by id, centered at (cx,cy), with a radius of r. (fx, fy) define the location of the focal point of the light source. The stop color sequence defined in sc. Coordinates are expressed as percentages.

func (*SVG) Rect 

func (svg *SVG) Rect(x int, y int, w int, h int, s ...string)

Rect draws a rectangle with upper left-hand corner at x,y, with width w, and height h, with optional style Standard Reference: http://www.w3.org/TR/SVG11/shapes.html#RectElement

func (*SVG) Rotate 

func (svg *SVG) Rotate(r float64)

Rotate rotates the coordinate system by r degrees, end with Gend() Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) RotateTranslate 

func (svg *SVG) RotateTranslate(x, y int, r float64)

RotateTranslate rotates the coordinate system r degrees, then translates to (x,y), end with Gend()

func (*SVG) Roundrect 

func (svg *SVG) Roundrect(x int, y int, w int, h int, rx int, ry int, s ...string)

Roundrect draws a rounded rectangle with upper the left-hand corner at x,y, with width w, and height h. The radii for the rounded portion are specified by rx (width), and ry (height). Style is optional. Standard Reference: http://www.w3.org/TR/SVG11/shapes.html#RectElement

func (*SVG) Scale 

func (svg *SVG) Scale(n float64)

Scale scales the coordinate system by n, end with Gend() Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) ScaleXY 

func (svg *SVG) ScaleXY(dx, dy float64)

ScaleXY scales the coordinate system by dx and dy, end with Gend() Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) Script 

func (svg *SVG) Script(scriptype string, data ...string)

Script defines a script with a specified type, (for example "application/javascript"). if the first variadic argument is a link, use only the link reference. Otherwise, treat those arguments as the text of the script (marked up as CDATA). if no data is specified, just close the script element

func (*SVG) SkewX 

func (svg *SVG) SkewX(a float64)

SkewX skews the x coordinate system by angle a, end with Gend() Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) SkewXY 

func (svg *SVG) SkewXY(ax, ay float64)

SkewXY skews x and y coordinates by ax, ay respectively, end with Gend() Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) SkewY 

func (svg *SVG) SkewY(a float64)

SkewY skews the y coordinate system by angle a, end with Gend() Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) Square 

func (svg *SVG) Square(x int, y int, l int, s ...string)

Square draws a square with upper left corner at x,y with sides of length l, with optional style.

func (*SVG) Start 

func (svg *SVG) Start(w int, h int, ns ...string)

Start begins the SVG document with the width w and height h. Other attributes may be optionally added, for example viewbox or additional namespaces Standard Reference: http://www.w3.org/TR/SVG11/struct.html#SVGElement

func (*SVG) Startview 

func (svg *SVG) Startview(w, h, minx, miny, vw, vh int)

Startview begins the SVG document, with the specified width, height, and viewbox

func (*SVG) Text 

func (svg *SVG) Text(x int, y int, t string, s ...string)

Text places the specified text, t at x,y according to the style specified in s Standard Reference: http://www.w3.org/TR/SVG11/text.html#TextElement

func (*SVG) Textlines 

func (svg *SVG) Textlines(x, y int, s []string, size, spacing int, fill, align string)

Textlines places a series of lines of text starting at x,y, at the specified size, fill, and alignment. Each line is spaced according to the spacing argument

func (*SVG) Textpath 

func (svg *SVG) Textpath(t string, pathid string, s ...string)

Textpath places text optionally styled text along a previously defined path Standard Reference: http://www.w3.org/TR/SVG11/text.html#TextPathElement

func (*SVG) Title 

func (svg *SVG) Title(s string)

Title specified the text of the title tag. Standard Reference: http://www.w3.org/TR/SVG11/struct.html#TitleElement

func (*SVG) Translate 

func (svg *SVG) Translate(x, y int)

Translate begins coordinate translation, end with Gend() Standard Reference: http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

func (*SVG) TranslateRotate 

func (svg *SVG) TranslateRotate(x, y int, r float64)

TranslateRotate translates the coordinate system to (x,y), then rotates to r degrees, end with Gend()

func (*SVG) Use 

func (svg *SVG) Use(x int, y int, link string, s ...string)

Use places the object referenced at link at the location x, y, with optional style. Standard Reference: http://www.w3.org/TR/SVG11/struct.html#UseElement

Source Files

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Directories

Path Synopsis
compx: display components and connections on a grid, given a XML description
 compx: display components and connections on a grid, given a XML description
stockproduct draws a bar chart comparing stock price to products
 stockproduct draws a bar chart comparing stock price to products
webfonts demo
 webfonts demo

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