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DXF Reference
January 2007
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Contents
Chapter 1 DXF Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Organization of This Reference . . . . . . . . . . . . . . . . . . . . . . . 2
Revisions to the DXF Reference . . . . . . . . . . . . . . . . . . . . . . 2
Formatting Conventions in This Reference . . . . . . . . . . . . . . . . 2
Object and Entity Codes . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Group Code Value Types . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Group Codes in Numerical Order . . . . . . . . . . . . . . . . . . . . . 6
Chapter 2 HEADER Section . . . . . . . . . . . . . . . . . . . . . . . . . . 13
HEADER Section Group Codes . . . . . . . . . . . . . . . . . . . . . . 14
Revised VPORT Header Variables . . . . . . . . . . . . . . . . . . 32
Special Handling of Date/Time Variables . . . . . . . . . . . . . . 33
Chapter 3 CLASSES Section . . . . . . . . . . . . . . . . . . . . . . . . . . 37
CLASSES Section Group Codes . . . . . . . . . . . . . . . . . . . . . . 38
Default Class Values . . . . . . . . . . . . . . . . . . . . . . . . . 39
Chapter 4 TABLES Section . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Symbol Table Group Codes . . . . . . . . . . . . . . . . . . . . . . . . 42
Common Symbol Table Group Codes . . . . . . . . . . . . . . . . . . 43
Common Group Codes for Symbol Table Entries . . . . . . . . . 43
APPID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
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