DXF Reference

• DXF Format
  • Organization of This Reference
  • Revisions to the DXF Reference
  • Formatting Conventions in This Reference
  • Object and Entity Codes
  • Group Code Value Types
  • Group Codes in Numerical Order
• HEADER Section
  • HEADER Section Group Codes
    • Revised VPORT Header Variables
    • Special Handling of Date/Time Variables
• CLASSES Section
  • CLASSES Section Group Codes
    • Default Class Values
• TABLES Section
  • Symbol Table Group Codes
  • Common Symbol Table Group Codes
    • Common Group Codes for Symbol Table Entries
  • APPID
  • BLOCK_RECORD
  • DIMSTYLE
  • LAYER
  • LTYPE
  • STYLE
  • UCS
  • VIEW
  • VPORT
• BLOCKS Section
  • BLOCKS Section Group Codes
  • BLOCK
  • ENDBLK
• ENTITIES Section
  • Common Group Codes for Entities
  • 3DFACE
  • 3DSOLID
  • ACAD_PROXY_ENTITY
  • ARC
  • ATTDEF
  • ATTRIB
  • BODY
  • CIRCLE
  • DIMENSION
    • Common Dimension Group Codes
    • Aligned Dimension Group Codes
    • Linear and Rotated Dimension Group Codes
    • Radial and Diameter Dimension Group Codes
    • Angular Dimension Group Codes
    • Ordinate Dimension Group Codes
    • Dimension Style Overrides
  • ELLIPSE
  • HATCH
    • Boundary Path Data
    • Pattern Data
  • HELIX
  • IMAGE
  • INSERT
  • LEADER
  • LIGHT
  • LINE
  • LWPOLYLINE
  • MLINE
  • MLEADER
  • MLEADERSTYLE
    • Common MLeaderStyle Group Codes
    • MLeaderStyle Context Data Group Codes
    • MLeaderStyle Leader Node Group Codes
    • MLeaderStyle Leader Line Group Codes
  • MTEXT
  • OLEFRAME
  • OLE2FRAME
  • POINT
  • POLYLINE
    • Polyface Meshes
  • RAY
  • REGION
  • SECTION
  • SEQEND
  • SHAPE
  • SOLID
  • SPLINE
  • SUN
  • SURFACE
    • Extruded Surface
    • Lofted Surface
    • Revolved Surface
    • Swept Surface
  • TABLE
  • TEXT
  • TOLERANCE
  • TRACE
  • UNDERLAY
  • VERTEX
  • VIEWPORT
  • WIPEOUT
  • XLINE
• OBJECTS Section
  • OBJECT Section Group Codes
    • Object Ownership
  • Common Group Codes for Objects
  • ACAD_PROXY_OBJECT
  • ACDBDICTIONARYWDFLT
  • ACDBPLACEHOLDER
  • DATATABLE
  • DICTIONARY
  • DICTIONARYVAR
  • DIMASSOC
  • FIELD
  • GROUP
  • IDBUFFER
  • IMAGEDEF
  • IMAGEDEF_REACTOR
  • LAYER_INDEX
  • LAYER_FILTER
  • LAYOUT
  • LIGHTLIST
  • MATERIAL
  • MLINESTYLE
  • OBJECT_PTR
  • PLOTSETTINGS
  • RASTERVARIABLES
  • RENDER
    • RENDERENVIRONMENT
    • MENTALRAYRENDERSETTINGS
    • RENDERGLOBAL
  • SECTION
    • Section Manager
    • Section Settings
    • Section Type Settings
    • Section Geometry Settings
  • SPATIAL_INDEX
  • SPATIAL_FILTER
  • SORTENTSTABLE
  • SUNSTUDY
  • TABLESTYLE
  • UNDERLAYDEFINITION
  • VISUALSTYLE
  • VBA_PROJECT
  • WIPEOUTVARIABLES
  • XRECORD
• THUMBNAILIMAGE Section
  • THUMBNAILIMAGE Section Group Codes
• Drawing Interchange File Formats
  • ASCII DXF Files
    • General DXF File Structure
    • Group Codes in DXF Files
      • ASCII Control Characters in DXF Files
    • Header Group Codes in DXF Files
    • Class Group Codes in DXF Files
    • Symbol Table Group Codes in DXF Files
      • Symbol Table Example
    • Blocks Group Codes in DXF Files
    • Entity Group Codes in DXF Files
    • Object Group Codes in DXF Files
    • Writing a DXF Interface Program
      • Reading a DXF File
      • Writing a DXF File
  • Binary DXF Files
  • Slide Files
    • Old Slide Header
  • Slide Library Files
• Advanced DXF Issues
  • Database Objects
  • Persistent Inter-Object Reference Handles
    • Pointer and Ownership References
    • Hard and Soft References
    • Arbitrary Handles
    • 1005 Group Codes
  • Subclass Markers
  • Extension Dictionary and Persistent Reactors
  • Extended Data
  • Object Coordinate Systems (OCS)
  • Arbitrary Axis Algorithm