Building and Using Dashboards > Dashboard Property Reference for Graphs, Tables and Trends > Graph Objects > Pie graph
Pie graph
Pie graphs visualize one or more numerical columns from tabular data. A typical attachment has either one row and multiple numeric columns, or multiple rows with one numeric column and one non-numeric column (whose values are used as graph labels that uniquely identify each row).
A pie graph can visualize data in either of two ways:
*Column series: The first numeric column of the visualized data is used to populate the wedges in the pie. Each wedge corresponds to a row and displays that row's relative value.
*Row series: The first row of the visualized data is used to populate the wedges in the pie. Each wedge corresponds to a numerical column and displays that column's relative value.
Use the valueTable property to attach data to a pie graph. Use the rowSeriesFlag property to specify row series or column series visualization.
When a pie graph is selected in the Builder canvas, the Object Class Name that appears at the top of the Object Properties pane is obj_pie.
The Object Properties panel organizes pie graph properties into the following groups:
*Pie graph: Background group
*Pie graph: Column group
*Pie graph: Data group
*Pie graph: Data Format group
*Pie graph: Data Label group
*Pie graph: Historian group
*Pie graph: Interaction group
*Pie graph: Label group
*Pie graph: Legend group
*Pie graph: Object group
*Pie graph: Wedge group
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