Graphical Modeling Framework Tooling - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 504

a RealFigure or a figure reference ( FigureRef ). A FigureDescriptor also
can contain a number of ChildAccess elements, which, in turn, reference a fig-
ure. A FigureRef maintains a reference to a RealFigure , which can contain a
number of children figures.

Figure 11-1 Graphical definition model—figures

Figure 11-2 illustrates the third layer and completes the previous figure. A
Canvas contains a number of FigureGallery elements, which contain descrip-
tors and figures. The Canvas also contains elements that represent diagram sur-
face nodes, connections, compartments, and labels.
Looking at Figure 11-2 for reference, a FigureGallery contains
FigureDescriptor and RealFigure elements. Both of these contain Figure
elements, which can be either FigureRef or RealFigure elements. A
FigureRef is a placeholder that references a RealFigure and provides a way
to reuse figures in the gallery. Figure s defined with a FigureDescriptor can
be accessed using a ChildAccess element. The accessor is a method or field
name.
Note that the CustomFigure element can contain a FigureAccessor that
contains a RealFigure . This enables you to nest custom figures in the figure