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.
NoteDo 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.
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
|
application-defined 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
|
330
|
Soft-pointer ID/handle to owner dictionary (optional)
|
no default
|
102
|
End of group, “}” (optional)
|
no default
|
102
|
“{ACAD_XDICTIONARY” indicates
the start of an extension dictionary group. This group exists only
if an extension dictionary has been attached to the object (optional)
|
no default
|
360
|
Hard-owner ID/handle to owner dictionary (optional)
|
no default
|
102
|
End of group, “}” (optional)
|
no default
|
330
|
Soft-pointer ID/handle to owner BLOCK_RECORD
object
|
not omitted
|
100
|
Subclass marker (AcDbEntity)
|
not omitted
|
67
|
Absent or zero indicates entity is in model
space. 1 indicates entity is in paper space (optional).
|
0
|
410
|
APP: layout tab name
|
not omitted
|
8
|
Layer name
|
not omitted
|
6
|
Linetype name (present if not BYLAYER). The
special name BYBLOCK indicates a floating linetype (optional)
|
BYLAYER
|
347
|
Hard-pointer ID/handle to material object (present
if not BYLAYER)
|
BYLAYER
|
62
|
Color number (present if not BYLAYER); zero
indicates the BYBLOCK (floating) color; 256 indicates BYLAYER; a
negative value indicates that the layer is turned off (optional)
|
BYLAYER
|
370
|
Lineweight enum value. Stored and moved around
as a 16-bit integer.
|
not omitted
|
48
|
Linetype scale (optional)
|
1.0
|
60
|
Object visibility (optional): 0 = Visible; 1
= Invisible
|
0
|
92
|
Number of bytes in the proxy entity graphics
represented in the subsequent 310 groups, which are binary chunk
records (optional)
|
no default
|
310
|
Proxy entity graphics data (multiple lines;
256 characters max. per line) (optional)
|
no default
|
420
|
A 24-bit color value that should be dealt with
in terms of bytes with values of 0 to 255. The lowest byte is the
blue value, the middle byte is the green value, and the third byte
is the red value. The top byte is always 0. The group code cannot
be used by custom entities for their own data because the group
code is reserved for AcDbEntity, class-level color data and AcDbEntity,
class-level transparency data
|
no default
|
430
|
Color name. The group code cannot be used by
custom entities for their own data because the group code is reserved
for AcDbEntity, class-level color data and AcDbEntity, class-level
transparency data
|
no default
|
440
|
Transparency value. The group code cannot be
used by custom entities for their own data because the group code
is reserved for AcDbEntity, class-level color data and AcDbEntity,
class-level transparency data
|
no default
|
390
|
Hard-pointer ID/handle to the plot style object
|
no default
|
284
|
Shadow mode 0 = Casts and receives shadows 1 = Casts shadows 2 = Receives shadows 3 = Ignores shadows
|
no default
|
