A gauge chart presents a single value as a meter reading. If the chart includes thresholds, a manager can review the chart quickly to determine whether this number is within a targeted range. The chart's value can come from a property; or, when the chart illustrates the data in a Report Definition, a value in the report.
Gauge charts used with Report Definitions can be of several different subtypes.
You can use a gauge chart to display the data in a Report Definition report by selecting the chart type in the toolbar at the top of the Chart Editor.