The Drilldown Column Chart Viewlet
The Drilldown Column Chart Viewlet gives the user a standard column chart display, with the added benefit and functionality of multiple levels of data. Double-clicking on the individual columns will "drill down" to a separate column chart nested within the larger section above it. In the example below, a typical hierarchy of locations is shown. This viewlet makes multi-tiered comparisons of energy usage simple and concise.
