An attractive staircase spiral chart. This demonstrates basic arcs, filters for shadows, and transitioning of colors. Hover over the pie chart elements to see the legend change dynamically.
Live Demo: http://bit.ly/1oSSrnl
GitHub Source: http://bit.ly/1syXgpM
Example of the largest slice being selected.
Another slice selected.
Another slice selected.
You can turn off the colors to study the shading effects which helps for debugging the working prototype.
I added controls for chart demo so you could play around with the interactions and update the chart.
