Nodes are simply graphic objects, presented
in a grapher. Any graphic object can be used as a node in a
grapher.
To add a node to a grapher, use one of the
following methods:
void addNode(IlvGraphic obj, boolean redraw)
void addNode(IlvGraphic obj, int layer, boolean redraw)
These methods add the object to the specified layer of a grapher
and add additional information to the object so that it becomes a
node. Graphic objects that have already been added to the grapher
using the
addObject
method can be made into nodes of the grapher using the method:
void makeNode(IlvGraphic obj)