AutoCAD® 2002 - Autodesk

Common Group Codes for Entities
The following table shows group codes that apply to virtually all graphical
objects. Some of the group codes shown here are included with an entity definition
only if the entity has nondefault values for the property. When you
refer to the group codes by entity type, the lists of codes associated with
specific entities, keep in mind that the codes shown here are also present.
NOTE Do not write programs that rely on the order shown in these DXF code
tables. Although these tables show the order of group codes as they usually
appear, the order can change under certain conditions or may be changed in a
future AutoCAD ® release. The code that controls an entity should be driven by
a case (switch) or a table so that it can process each group correctly even if the
order is unexpected.
When a group is omitted, its default value upon input (when using OPEN) is
indicated in the third column. If the value of a group code is equal to the
default, it is omitted upon output (when using SAVEAS). For information
about abbreviations and formatting used in this table, see “Formatting Conventions
in This Reference” on page 6.
Group codes that apply to all graphical objects
Group code
Description
If omitted,
defaults to…
–1 APP: entity name (changes each time a
drawing is opened)
not omitted
0 Entity type not omitted
5 Handle not omitted
102 Start of application defined group
“{application_name” (optional)
no default
applicationdefined
codes
Codes and values within the 102 groups are
application-defined (optional)
no default
102 End of group, “}” (optional) no default
102 “{ACAD_REACTORS” indicates the start of the
AutoCAD persistent reactors group. This group
exists only if persistent reactors have been
attached to this object (optional)
no default
60 | Chapter 6 ENTITIES Section