I'm in the process of writing a visualization library for a product I work on and I've been thinking about i18n and BiDi support. I haven't been able to find a good answer anywhere, and my Project Manager doesn't really know the answer either.
My question is this: how far should I take bi-directionality with visualizations? Should the entire visual be mirrored, or only the labels on the key/axes? What is expected in the Right-to-Left reading world?
Note
I'm specifically thinking of Gauges and Bar Charts right now... if that helps the discourse.