The shape of a polygonal group is defined by the class IlpPolygon. This class describes a closed polyline made up of an array of points. This polyline can have any number of sides.

Polygonal groups have a semitransparent background (through which a background map can be seen) and a thick outline. When alarms or statuses are displayed, they are grouped in an information cluster that is positioned at the center of the polygon, as shown in Figure 6.1. For more information, see Customizing the Group Information Cluster in the Styling documentation.

The shape of a rectangular group is defined by the class IlpRect, which describes a rectangle. Rectangular groups can be resized to create any kind of rectangular container.

Rectangular groups are represented by opaque relief rectangles as shown in Figure 6.2. When alarms are displayed, they are grouped in an information cluster that is positioned at the center of the rectangle. For more information, see Customizing the Group Information Cluster in the Styling documentation.

The shape of a linear group is defined by the class IlpPolyline. This class describes an open polyline made up of an array of points.