This section presents the group codes that apply to nongraphical objects. If the description is common to both DXF files and applications, no indicator is provided. Otherwise, the appropriate indicator is present. Optional codes are shown in gray.
Objects are similar to entities, except that they have no graphical or geometric meaning.
All objects that are not entities or symbol table records or symbol tables are stored in this section. This section represents a homogeneous heap of objects with topological ordering of objects by ownership, such that the owners always appear before the objects they own.