Chapter 3 -- CLASSES Section
CLASSES Section Group Codes
Default Class Values

AutoCAD registers the classes listed in the following table. (This may not be a complete list of the classes found in a DXF file. It depends on the applications currently in use by AutoCAD.)

Default class values
DXF Record Name
Code 1
C++ Class Name
Code 2
Code
90
Code
280
Code
281

ACDBDICTIONARYWDFLT

AcDbDictionaryWithDefault

0

0

0

ACDBPLACEHOLDER

AcDbPlaceHolder

0

0

0

ARCALIGNEDTEXT

AcDbArcAlignedText

0

0

1

DICTIONARYVAR

AcDbDictionaryVar

0

0

0

HATCH

AcDbHatch

0

0

1

IDBUFFER

AcDbIdBuffer

0

0

0

IMAGE

AcDbRasterImage

127

0

1

IMAGEDEF

AcDbRasterImageDef

0

0

0

IMAGEDEF_REACTOR

AcDbRasterImageDefReactor

1

0

0

LAYER_INDEX

AcDbLayerIndex

0

0

0

LAYOUT

AcDbLayout

0

0

0

LWPOLYLINE

AcDbPolyline

0

0

1

OBJECT_PTR

CAseDLPNTableRecord

1

0

0

OLE2FRAME

AcDbOle2Frame

0

0

1

RASTERVARIABLES

AcDbRasterVariables

0

0

0

RTEXT

RText

0

0

1

SORTENTSTABLE

AcDbSortentsTable

0

0

0

SPATIAL_INDEX

AcDbSpatialIndex

0

0

0

SPATIAL_FILTER

AcDbSpatialFilter

0

0

0

WIPEOUT

AcDbWipeout

127

0

1

WIPEOUTVARIABLES

AcDbWipeoutVariables

0

0

0