In this example, four gauges are described that display up to five alternative settings. Using the information in Figure 13, Summary Table of Performance Rows Returned by a Query, each gauge represents the performance of a region. The four gauge images are associated with a value in the Region column. That is, the gauges take the names: East, North, South, and West. The four gauge images are also associated with the performance range in the Value column. The performance ranges are 5 and 1.
If, for example, the sun gauge image is used with instance 1 as East, instance 2 as North, instance 3 as South, and instance 4 as West, a string is generated by the Gauge Properties configuration frame and the values in the table (Figure 13, Summary Table of Performance Rows Returned by a Query). The string creates the name of the image that is visible. For example,
sun^Hysl_gg^5^1 (sunshine)
sun^Hysl_gg^1^2 (thunder storm)
sun^Hysl_gg^1^3 (thunder storm)
sun^Hysl_gg^5^4 (sunshine)