DXF Reference

*Model_Space block definition

*Paper_Space block definition

32-bit integer values\

2D entities, coordinate systems associated with

3D entities, coordinate systems associated with

3dface group codes

3dsolid group codes

A

acad_proxy_entity group codes

ACAD_PROXY_OBJECT group codes

ACADMAINTVER DXF header variable

ACADVER DXF header variable

ACDBDICTIONARYWDFLT group codes

AcDbMentalRayRenderSettings

ACDBPLACEHOLDER group codes

AcDbRenderGlobal

AcDbRenderSettings

ACFD_FIELD_VALUE key

aligned dimension group codes

ambient color, group codes

ANGBASE DXF header variable

ANGDIR DXF header variable

angular dimension group codes

anonymous blocks

APPID group codes

xdata groupings and

application-defined object types

arbitrary axis algorithm

arbitrary handles

arc edge data for hatch entities

arc group codes

ASCII control characters in DXF files

ASCII DXF files

vs. binary DXF files

BLOCKS section (example)

CLASSES section (example)

control character handling

ENTITIES section (example)

HEADER section (example)

maximum file string length

OBJECTS section (example)

reading (example)

TABLES section (example)

writing (example)

attdef group codes

ATTMODE DXF header variable

attrib group codes

AUNITS DXF header variable

AUPREC DXF header variable

arbitrary handles and

entnext function output for ole2frame entity (example)

group code 1005 xdata items and

handent function

reference handles and

B

block definitions

Model_Space and Paper_Space

block group codes

block reference (insert) group codes

BLOCK section (DXF files), about

block table handles

BLOCK_RECORD group codes

and writing a DXF file

blocks, anonymous

body group codes

Boolean flags, group code range

borders (in tables), group codes

boundary path data for hatch entities

boundary path data for hatch entities, group codes

bump maps, group codes

binary DXF files [1], [2], [4]

C

C++ class names, default class values

CECOLOR DXF header variable

CELTSCALE DXF header variable

CELTYPE DXF header variable

CELWEIGHT DXF header variable

CEPSNID DXF header variable

CEPSNTYPE DXF header variable

CHAMFERA DXF header variable

CHAMFERB DXF header variable

CHAMFERC DXF header variable

CHAMFERD DXF header variable

child fields, group codes

circle group codes

CLASSES section

default class values by DXF record name and C++ class name

CLAYER DXF header variable

CMLJUST DXF header variable

CMLSCALE DXF header variable

CMLSTYLE DXF header variable

codes, group. See group codes (DXF files)

color styles (in tables), group codes

column headings (in tables), suppression of

columns and rows (in tables), group codes

comments, group code [1], [2]

common entity group codes

control character handling

control strings

conventions used in this reference

coordinate systems associated with entity types

CSHADOW Header variable

D

database objects

DATATABLE group codes

default class values by DXF record name and C++ class name

deleted items in symbol tables

diameter dimension group codes

dictionaries, named object

DICTIONARY group codes

DICTIONARYVAR group codes [1], [2]

diffuse color, group codes

diffuse maps, group codes

DIMADEC DXF header variable

DIMALT DXF header variable

DIMALTD DXF header variable

DIMALTF DXF header variable

DIMALTRND DXF header variable

DIMALTTD DXF header variable

DIMALTTZ DXF header variable

DIMALTU DXF header variable

DIMALTZ DXF header variable

DIMAPOST DXF header variable

DIMASO DXF header variable

DIMASSOC DXF header variable

DIMASZ DXF header variable

DIMATFIT DXF header variable

DIMAUNIT DXF header variable

DIMAZIN DXF header variable

DIMBLK DXF header variable

DIMBLK1 DXF header variable

DIMBLK2 DXF header variable

DIMCEN DXF header variable

DIMCLRD DXF header variable

DIMCLRE DXF header variable

DIMCLRT DXF header variable

DIMDEC DXF header variable

DIMDLE DXF header variable

DIMDLI DXF header variable

DIMDSEP DXF header variable

dimension entities, coordinate systems associated with

dimension group codes

dimension style overrides

DIMEXE DXF header variable

DIMEXO DXF header variable

DIMFAC DXF header variable

DIMGAP DXF header variable

DIMJUST DXF header variable

DIMLDRBLK DXF header variable

DIMLFAC DXF header variable

DIMLIM DXF header variable

DIMLUNIT DXF header variable

DIMLWD DXF header variable

DIMLWE DXF header variable

DIMPOST DXF header variable

DIMRND DXF header variable

DIMSAH DXF header variable

DIMSCALE DXF header variable

DIMSD1 DXF header variable

DIMSD2 DXF header variable

DIMSE1 DXF header variable

DIMSE2 DXF header variable

DIMSHO DXF header variable

DIMSOXD DXF header variable

table handle code

DIMSTYLE DXF header variable

DIMSTYLE group codes

DIMSTYLE table handle code

DIMTAD DXF header variable

DIMTDEC DXF header variable

DIMTFAC DXF header variable

DIMTIH DXF header variable

DIMTIX DXF header variable

DIMTM DXF header variable

DIMTMOVE DXF header variable

DIMTOFL DXF header variable

DIMTOH DXF header variable

DIMTOL DXF header variable

DIMTOLJ DXF header variable

DIMTP DXF header variable

DIMTSZ DXF header variable

DIMTVP DXF header variable

DIMTXSTY DXF header variable

DIMTXT DXF header variable

DIMTZIN DXF header variable

DIMUPT DXF header variable

DIMZIN DXF header variable

DISPSILH DXF header variable

DRAGVS Header variable

drawing interchange file formats

ASCII DXF [1], [2]

binary DXF [1], [3]

Slide Library (SLB)

DWGCODEPAGE DXF header variable

group code ranges

group codes in numerical order

file parsers, subclass markers and

files. See ASCII DXF files\

header variables

interface programs, writing (example)

record names, default class values

DXF header variables in

group codes. See group codes (DXF files)

See also ASCII DXF files\

DXF format, objects vs. entities in

DXF header variables, in DXF files

DXFIN considerations for writing DXF files

E

ECS. See object coordinate system

ELEVATION DXF header variable

elevation value for entity positioning

ellipse edge data for hatch entities

ellipse group codes

endblk group codes

ENDCAPS DXF header variable

coordinate systems associated with

entity group codes vs. object codes

group codes listed in numerical order

entities (DXF format)

group codes for [1], [2]

hatch boundary path data

MATERIAL objects

TABLESTYLE objects

ENTITIES section

and writing a DXF file

ENTITIES section (DXF files), about

extension dictionary

EXTMAX DXF header variable

EXTMIN DXF header variable

EXTNAMES DXF header variable

EXTRUDED SURFACE group codes

extrusion direction, OCS properties for

F

FASTZ revised VPORT header variable

FIELD group codes

field value, data type

filing a stream of group data, subclass markers and

FILLETRAD DXF header variable

FILLMODE DXF header variable

FINGERPRINTGUID DXF header variable

fixed group codes

Boolean flag group code range

viewport status flags

floating-point numbers, group code ranges

G

GEODATA group codes

getvar AutoLISP function

gradients, shifted/unshifted definitions

graphical object group codes. See names of specific objects

GRIDMODE revised VPORT header variable

GRIDUNIT revised VPORT header variable

group codes (DXF files)

arbitrary handle range

ASCII DXF files and

binary DXF files and

for entities [1], [2]

hatch boundary path data

MATERIAL objects

TABLESTYLE objects

for entities (graphical objects)

formatting conventions for

HEADER section codes

in numerical order

objects/entities and

reference handle ranges

group data, subclass markers and

GROUP group codes

H

HALOGAP DXF header variable

handent functions (AutoLISP)

of dictionary objects

HANDSEED DXF header variable

hard references vs. soft references

hard-owner handles [1], [2]

hard-pointer handles [1], [11]

boundary path data group codes

hatch group codes

hatch pattern data

group codes for revised VPORT variables

group codes for saved DXF header variables

time/date variables, handling of

and writing a DXF file

HEADER section (DXF files), group codes

HELIX group codes

HIDETEXT DXF header variable

HYPERLINKBASE DXF header variable

I

IDBUFFER group codes

image group codes

IMAGEDEF group codes

IMAGEDEF_REACTOR group codes

INDEXCTL DXF header variable

inheritance levels for filer members, subclass markers and

INSBASE DXF header variable

ASCII control character handling and

binary DXF files and

insert group codes

INSUNITS DXF header variable

32-bit integer values

group code ranges

INTERFERECOLOR Header variable

INTERFEREOBJVS Header variable

INTERFEREVPVS Header variable

INTERSECTIONC DXF header variable

INTERSECTIOND DXF header variable

J

JOINSTYLE DXF header variable

K

L

LAYER group codes

LAYER_FILTER group codes

LAYER_INDEX group codes

LAYOUT group codes

leader group codes

Light group codes

LIGHTLIST group codes

LIMCHECK DXF header variable

LIMMAX DXF header variable

LIMMIN DXF header variable

line edge data for hatch entities

line group codes

linear dimension group codes

lineweights, enum value

LOFTED SURFACE group codes

LTSCALE DXF header variable

LTYPE group codes

LUNITS DXF header variable

LUPREC DXF header variable

LWDISPLAY DXF header variable

lwpolyline group codes

M

MATERIAL objects, group codes

MAXACTVP DXF header variable

MEASUREMENT DXF header variable

MENTALRAYRENDERSETTINGS

MENU DXF header variable

MIRRTEXT DXF header variable

mleader group codes

mleaderstyle group codes

mline group codes

MLINESTYLE group codes

Model_Space block definition

MSLIDE/VSLIDE commands

mtext group codes

multileader group codes

N

named object dictionary

nongraphical object group codes. See names of specific objects

normal vector, arbitrary axis algorithm and

numerical order group codes

O

object coordinate system (OCS)

arbitrary axis algorithm and

OBJECT_PTR group codes

group code 1005 xdata items and

reference handles and

ObjectARX, reference handles and

object group codes vs. entity codes

objects (DXF format), vs. entities

OBJECTS section

common group codes

OBSCOLOR DXF header variable

OBSLTYPE DXF header variable

ole2frame entities, AutoLISP entnext function output (example)

ole2frame group codes

DXF output (example)

oleframe group codes

opacity maps, group codes

ASCII control character handling and

binary DXF files and

ordinate dimension group codes

ORTHOMODE DXF header variable

ownership pointers to extension dictionaries

ownership references vs. pointer references

P

Paper_Space block definition

pattern data for hatch entities

PDMODE DXF header variable

PDSIZE DXF header variable

PELEVATION DXF header variable

persistent inter-object reference handles

persistent reactor tables [1], [2]

PEXTMAX DXF header variable

PEXTMIN DXF header variable

PFACE command considerations

PINSBASE DXF header variable

PLIMCHECK DXF header variable

PLIMMAX DXF header variable

PLIMMIN DXF header variable

PLINEGEN DXF header variable

PLINEWID DXF header variable

PLOTSETTINGS group codes

point group codes

pointer references vs. ownership references

polyface meshes in DXF

polyline boundary data for hatch entities

polyline group codes

polyface meshes and

PROJECTNAME DXF header variable

PROXYGRAPHICS DXF header variable

PSLTSCALE DXF header variable

PSSTYLEMODE DXF header variable

PSVPSCALE DXF header variable

PUCSBASE DXF header variable

PUCSNAME DXF header variable

PUCSORG DXF header variable

PUCSORGBACK DXF header variable

PUCSORGBOTTOM DXF header variable

PUCSORGFRONT DXF header variable

PUCSORGLEFT DXF header variable

PUCSORGRIGHT DXF header variable

PUCSORGTOP DXF header variable

PUCSORTHOREF DXF header variable

PUCSORTHOVIEW DXF header variable

PUCSXDIR DXF header variable

PUCSYDIR DXF header variable

Q

QTEXTMODE DXF header variable

R

radial dimension group codes

ranges of group codes

RASTERVARIABLES group codes

ray group codes

reading a DXF file (example)

reference handles

pointer vs. ownership

reflection maps, group codes

refraction maps, group codes

REGENMODE DXF header variable

region group codes

RENDERENVIRONMENT group codes

REVOLVED SURFACE group codes

rotated dimension group codes

rows and columns (in tables), group codes

S

Select Objects option

ASCII control character handling and

binary DXF files and

Select Objects option

SECTION group codes¶

Section Type Settings group codes¶ [1], [2]

SECTIONMANAGER group codes¶

sequend group codes

SHADEDGE DXF header variable

SHADEDIF DXF header variable

SHADOWPLANELOCATION Header variable

shape group codes

SKETCHINC DXF header variable

SKPOLY DXF header variable

slide (SLD) files

data record types

hex dump of (example)

old-format header

slide library (SLB) file format

SNAPANG revised VPORT header variable

SNAPBASE revised VPORT header variable

SNAPISOPAIR revised VPORT header variable

SNAPMODE revised VPORT header variable

SNAPSTYLE revised VPORT header variable

SNAPUNIT revised VPORT header variable

soft references vs. hard references

soft-owner handles [1], [2]

soft-pointer handles

solid group codes [1], [2]

SORTENTS DXF header variable

SORTENTSTABLE group codes

SPATIAL_FILTER group codes

SPATIAL_INDEX group codes

specular color, group codes

specular maps, group codes

spline edge data for hatch entities

spline group codes

SPLINESEGS DXF header variable

SPLINETYPE DXF header variable

SSECTIONSETTINGS group codes¶

strings, group code ranges

STYLE group codes

subclass data marker

subclass markers

SUN group codes [1], [2]

SURFACE group codes

SURFTAB1 DXF header variable

SURFTAB2 DXF header variable

SURFTYPE DXF header variable

SURFU DXF header variable

SURFV DXF header variable

SWEPT SURFACE group codes

symbol table entries

common group codes

common group codes

deleted items and

DIMSTYLE handle

system variables, saved in DXF files

T

TABLE group codes

symbol table common group codes

symbol table structure

and writing a DXF file

tables, group codes for

TABLESTYLE group codes

TDCREATE DXF header variable

TDINDWG DXF header variable

TDUCREATE DXF header variable

TDUPDATE DXF header variable

TDUSRTIMER DXF header variable

TDUUPDATE DXF header variable

TEXT group codes

text strings, group code range

text style (in tables), group codes

TEXTSIZE DXF header variable

TEXTSTYLE DXF header variable

THICKNESS DXF header variable

THUMBNAIL section

THUMBNAILIMAGE section

TILEMODE DXF header variable

time/date variables, handling of

tolerance group codes

trace group codes

TRACEWID DXF header variable

TREEDEPTH DXF header variable

U

UCS group codes

UCSBASE DXF header variable

UCSNAME DXF header variable

UCSORG DXF header variable

UCSORGBACK DXF header variable

UCSORGBOTTOM DXF header variable

UCSORGFRONT DXF header variable

UCSORGLEFT DXF header variable

UCSORGRIGHT DXF header variable

UCSORGTOP DXF header variable

UCSORTHOREF DXF header variable

UCSORTHOVIEW DXF header variable

UCSXDIR DXF header variable

UCSYDIR DXF header variable

Underlay Definition group codes

underlay group codes

UNITMODE DXF header variable

user coordinate system (UCS)

USERI1-5 DXF header variable

USERR1-5 DXF header variable

USRTIMER DXF header variable

V

VBA_PROJECT group codes

vectors, in slide files

VERSIONGUID DXF header variable

vertex group codes

VIEW group codes

VIEWCTR revised VPORT header variable

VIEWDIR revised VPORT header variable

viewport entities

coordinate systems associated with

viewport group codes

VIEWSIZE revised VPORT header variable

VISRETAIN DXF header variable

Visual Basic programs (examples)

for reading a DXF file

for writing a DXF file

VISUALSTYLE group codes¶

VPORT group codes

VPORT header variables, revised

VSLIDE/MSLIDE commands

W

wipeout group codes

WIPEOUTVARIABLES group codes

world coordinate system (WCS)

WORLDVIEW DXF header variable

writing a DXF file (example)

X

X and Y axes orientation calculations [1], [3]

X axis, arbitrary axis algorithm and

XCLIPFRAME DXF header variable

and dimension entities

sample entity containing (DXF format)

xdata group codes

binary DXF group codes

XEDIT DXF header variable

xline group codes

XRECORD group codes

XY coordinates, working with

Y

Y axis, arbitrary axis algorithm and

Z

arbitrary axis algorithm and

OCS properties for