KeyLines annotations are a special type of a chart item that annotates the nodes, links and open and closed combos contained in its subject array.

Annotations are positioned relative to their subjects at a distance set by the position property. When a layout is run or when their subjects move, annotations also move to keep their relative position. They do not scale during zooming.

Annotations have two main parts - a body to show information, styling elements or user controls and a connector to link the annotation to its subjects. You can see more advanced examples of body styling in the Advanced Annotation Styles demo.

The connector further splits into a line, a subject end decoration and a container around subjects, all of which can be styled or disabled in the connectorStyle property.

Key functions used:

• Annotations API