Ellipse support in Protovis-GWT

[Lars Grammel]

Hi Guillaume,

I added ellipse support to Protovis-GWT (code in SVN). There is now an
ellipse mark type that you can use (see EllipseExample on how to use
it). I have not included rotation/angle yet, because I decided to
separate the ellipse from the dot mark type since an ellipse has both
vertical and horizontal radius. Is the rotation feature important to
you?

You can see the ellipse example at:

http://web.uvic.ca/~lgrammel/blog/protovis-gwt/index.html

Thanks for your help,

Lars