JavaScript Drawing Libraries Digest

jSignature is a JavaScript widget (a jQuery plugin) that simplifies creation of a signature capture field in a browser window, allowing a user to draw a signature using mouse, pen, or finger.

  • Works in all mainstream browsers that support Canvas or Flash
  • Captures signatures as smooth vector images. (Yes, SVG is supported!)
  • Ingenious, super-efficient (i.e. not lagging) real-time curve smoothing.
  • Allows manipulation of signature strokes, like “Undo last stroke”
  • Automatically adapts to your page’s layout and colors.
  • Free and Open Source.

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SeuratJS

SeuratJS is a JavaScript library that extends Raphaël and allows for the creation of vivid animations and pixelated artwork using minimal code. It does this by extacting color data from an image of your choice and rebuilding the original with filled graphical primitives in SVG. Seurat makes it extremely easy to alter what primitives are generated (how they look and where they appear) and how they animate.

SeuratJS uses the HTML5 canvas to parse color data and, because of this, the library operates entirely on the client side.

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 Raphaël

Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web. If you want to create your own specific chart or image crop and rotate widget, for example, you can achieve it simply and easily with this library.

Raphaël [‘ræfeɪəl] uses the SVG W3C Recommendation and VML as a base for creating graphics. This means every graphical object you create is also a DOM object, so you can attach JavaScript event handlers or modify them later. Raphaël’s goal is to provide an adapter that will make drawing vector art compatible cross-browser and easy.

Raphaël currently supports Firefox 3.0+, Safari 3.0+, Chrome 5.0+, Opera 9.5+ and Internet Explorer 6.0+.

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