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).

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`:

```sh
$ go get github.com/llgcode/draw2d
```

a good starting point is the [getting started](http://github.com/llgcode/draw2d/wiki/GettingStarted) wiki page.


## [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):

If you find bugs, please refer to the [issue tracker](http://github.com/llgcode/draw2d/issues).

![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)