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draw2d
======
This package (written in [go](http://golang.org)) provides an API to draw 2d geometrical forms on [images](http://golang.org/pkg/image).
This library is largely inspired by [postscript](http://www.tailrecursive.org/postscript), [cairo](http://cairographics.org) and [HTML5 canvas](http://dev.w3.org/html5/canvas-api/canvas-2d-api.html#the-2d-drawing-context).
This package (written in [go](http://golang.org)) provides an API to draw 2d vector forms on [images](http://golang.org/pkg/image).
This library is inspired by [postscript](http://www.tailrecursive.org/postscript) and [HTML5 canvas](http://www.w3.org/TR/2dcontext/).
The package depends on [freetype-go](http://code.google.com/p/freetype-go) package for its rasterization algorithm.
Some algorithms have been translated from the [antigrain.com](http://www.antigrain.com) project ([adaptive bezier](http://www.antigrain.com/research/adaptive_bezier/index.html), and arc drawing.)
## Installation
Once you have Go installed, to install `draw2d`:
Using
-----
Install [golang](http://golang.org) and get `draw2d`
```sh
$ go get github.com/llgcode/draw2d
go get github.com/llgcode/draw2d
```
a good starting point is the [getting started](http://github.com/llgcode/draw2d/wiki/GettingStarted) wiki page.
and start coding using one of the samples here.
Some usages of draw2d [Samples](https://github.com/llgcode/draw2d.samples)
## [Samples](http://github.com/llgcode/draw2d/wiki/Samples)
[Sample](https://github.com/llgcode/draw2d/wiki/Samples) images generated by `draw2d` (inspired by [cairo samples](http://cairographics.org/samples):
Known Software or Packages using draw2d
---------------------------------------
If you find bugs, please refer to the [issue tracker](http://github.com/llgcode/draw2d/issues).
- [golang postscript interpreter](https://github.com/llgcode/ps)
- [golang postscript interpreter](https://github.com/gonum/plot)
![Path](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestPath.png)
![DrawArc](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestDrawArc.png)
![DrawArcNegative](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestDrawArcNegative.png)
![CurveRectangle](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestCurveRectangle.png)
![DrawCubicCurve](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestDrawCubicCurve.png)
![Dash](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestDash.png)
![FillStroke](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestFillStroke.png)
![FillStyle](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestFillStyle.png)
![MultiSegmentCaps](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestMultiSegmentCaps.png)
![RoundRectangle](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestRoundRectangle.png)
![LineCap](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestLineCap.png)
![LineJoin](https://github.com/llgcode/draw2d/raw/wiki/test_results/TestLineJoin.png)
Reference
---------
- [antigrain.com](http://www.antigrain.com)
- [freetype-go](http://code.google.com/p/freetype-go)