using <canvas> element from javascript

Is there any JS library designed for working with canvas elements?

I don't really care about IE compatibility. I need to create objects(complex drawings with text) , draw lines between them, linear, bezier with different strokes, and attach event handlers to them(开发者_运维知识库i need mouseOver and click).

Anyone has any experience with a library that has built-in support for this?

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EDIT: http://raphaeljs.com/ seems to have these features

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Canvas doesnt support javascript, but SVG does. You could use jQuery to attach events etc to elements, just like other Dom elements.

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CAKE fulfills some of your requirements:

http://glimr.rubyforge.org/cake/canvas.html#KeyboardTest

It's been abandoned by its author, though, so it's doubtful that the areas its lacking in will be improved any time soon.

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Well the Mozilla's API is quite good for working with canvas https://developer.mozilla.org/en/drawing_graphics_with_canvas

What's lacking? What would you like to see in a canvas library? - it might be a good project to be done on sourceforge or perhaps YUI or jquery can include it if you write to them about it.

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Maybe Processing.js is what you look for...