Developing Apama Applications > Dashboard Property Reference for Graphs, Tables, and Trends > Graph Objects > Legend
Legend
The legend visualization object is useful for displaying a legend that is too lengthy for the built-in legends of the graph objects.
You can use a legend visualization object in conjunction with a bar graph, pie graph, radar graph, or XY graph.
The legend displays information from the graph object to which it is connected. Connect a legend to a graph object by setting the legend's graphName property to the value of the graph’s objName property. Set up all formatting for the legend data in the graph object that it will reflect.
When this visualization object is selected in the Builder canvas, the Object Class Name that appears at the top of the Object Properties pane is obj_legend.
The Object Properties panel organizes legend properties into the following groups:
*Legend: Background group
*Legend: Data group
*Legend: Historian group
*Legend: Interaction group
*Legend: Label group
*Legend: Legend group
*Legend: Object group
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