Graphical output formats
You can also produce custom reports in two graphical output formats: pie charts and bar charts. These formats can help readers better visualize the information you are presenting.
Both pie charts and bar charts use the Reporting COM object to define a report query, extract data from the resultset, and display the chart. The chart’s graphic content consists of title(s) for each pie shape or group of bars, legends defining colors, descriptions of pie slices or bars, a title for the report, and so on. The Reporting COM object uses this information to generate the chart and provides the means for you to display it.