[kodablah]

I had a project with the same requirements and settled on echarts[0] (version 2 at the time, now on 4). Its adoption was, at that time, very diminished due to everything being in Chinese. Its base graphics library, zrender[1], still suffers this issue. Were it to become more introduced to westerners, it could take the place of d3 for many of these use cases since its API is much easier to grok. Granted it's all canvas, but most uses don't care how it's rendered.

Edit: well, browsing zrender's source, I see svg logic too

0 - https://github.com/apache/incubator-echarts

1 - https://github.com/ecomfe/zrender