yui/yui3 — pull request #1544 by tripp (2014-01-11 01:07:18+00:00)
Title: (WIP) Graphics - add ellipticalArc method

First pass at fixing #1443.
Created ellipticalArc method based on w3c elliptical arc implementation notes.

Added manual example based on this example in the path spec.

Currently, VML/Canvas implementations are drawing arcs by point. May consider using cubic bezier approximations depending on performance.

- [ ] Add unit tests.
- [ ] Cross browser/platform testing
- [ ] Perf testing.
- [ ] Update based on any feedback.