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