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首页AutoCAD DXF 参考
AutoCAD DXF 2004.2版本的官方文档!<br>Chapter1 DXF Format<br>Chapter2 HEADER Section<br>Chapter3 CLASSES Section<br>Chapter4 TABLES Section<br>Chapter5 BLOCKS Section<br>Chapter6 ENTITIES Section<br>Chapter7 OBJECTS Section<br>Chapter8 THUMBNAILIMAGE Section<br>Appendix A Drawing Interchange File Formats<br>Appendix B Advanced DXF Issues
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February 2004
AutoCAD
®
DXF Reference
2005

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iii
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 . . . . . . . . . . . . . 5
Chapter 2 HEADER Section . . . . . . . . . . . . . . . . 13
HEADER Section Group Codes . . . . . . . . . . . . . 14
Chapter 3 CLASSES Section . . . . . . . . . . . . . . . . 31
CLASSES Section Group Codes . . . . . . . . . . . . . 32

iv | Contents
Chapter 4 TABLES Section . . . . . . . . . . . . . . . . 35
Symbol Table Group Codes . . . . . . . . . . . . . . 36
Common Symbol Table Group Codes . . . . . . . . . . . 37
APPID . . . . . . . . . . . . . . . . . . . . . 39
BLOCK_RECORD. . . . . . . . . . . . . . . . . . 39
DIMSTYLE . . . . . . . . . . . . . . . . . . . . 40
LAYER . . . . . . . . . . . . . . . . . . . . . 44
LTYPE . . . . . . . . . . . . . . . . . . . . . 45
STYLE . . . . . . . . . . . . . . . . . . . . . 46
UCS . . . . . . . . . . . . . . . . . . . . . . 48
VIEW . . . . . . . . . . . . . . . . . . . . . 49
VPORT . . . . . . . . . . . . . . . . . . . . . 52
Chapter 5 BLOCKS Section . . . . . . . . . . . . . . . . 57
BLOCKS Section Group Codes . . . . . . . . . . . . . 58
BLOCK . . . . . . . . . . . . . . . . . . . . . 58
ENDBLK . . . . . . . . . . . . . . . . . . . . 60
Chapter 6 ENTITIES Section. . . . . . . . . . . . . . . . 61
Common Group Codes for Entities . . . . . . . . . . . . 62
3DFACE . . . . . . . . . . . . . . . . . . . . 64
3DSOLID . . . . . . . . . . . . . . . . . . . . 65
ACAD_PROXY_ENTITY. . . . . . . . . . . . . . . . 66
ARC . . . . . . . . . . . . . . . . . . . . . . 67
ATTDEF. . . . . . . . . . . . . . . . . . . . . 68
ATTRIB . . . . . . . . . . . . . . . . . . . . . 69
BODY . . . . . . . . . . . . . . . . . . . . . 71
CIRCLE . . . . . . . . . . . . . . . . . . . . . 72
DIMENSION . . . . . . . . . . . . . . . . . . . 72
ELLIPSE. . . . . . . . . . . . . . . . . . . . . 80
HATCH . . . . . . . . . . . . . . . . . . . . . 81
IMAGE . . . . . . . . . . . . . . . . . . . . . 87
INSERT . . . . . . . . . . . . . . . . . . . . . 88
LEADER. . . . . . . . . . . . . . . . . . . . . 89
LINE. . . . . . . . . . . . . . . . . . . . . . 91
LWPOLYLINE . . . . . . . . . . . . . . . . . . . 92
MLINE . . . . . . . . . . . . . . . . . . . . . 93
MTEXT . . . . . . . . . . . . . . . . . . . . . 95
OLEFRAME . . . . . . . . . . . . . . . . . . . 97
OLE2FRAME . . . . . . . . . . . . . . . . . . . 97
POINT . . . . . . . . . . . . . . . . . . . . . 99
POLYLINE . . . . . . . . . . . . . . . . . . . . 100
RAY . . . . . . . . . . . . . . . . . . . . . . 102

Contents | v
REGION . . . . . . . . . . . . . . . . . . . . 103
SEQEND . . . . . . . . . . . . . . . . . . . . 104
SHAPE . . . . . . . . . . . . . . . . . . . . . 104
SOLID . . . . . . . . . . . . . . . . . . . . . 105
SPLINE . . . . . . . . . . . . . . . . . . . . 106
TABLE . . . . . . . . . . . . . . . . . . . . . 107
TEXT . . . . . . . . . . . . . . . . . . . . . 112
TOLERANCE . . . . . . . . . . . . . . . . . . . 114
TRACE. . . . . . . . . . . . . . . . . . . . . 115
VERTEX . . . . . . . . . . . . . . . . . . . . 116
VIEWPORT . . . . . . . . . . . . . . . . . . . 117
WIPEOUT . . . . . . . . . . . . . . . . . . . 121
XLINE . . . . . . . . . . . . . . . . . . . . . 122
Chapter 7 OBJECTS Section . . . . . . . . . . . . . . . 125
OBJECT Section Group Codes . . . . . . . . . . . . . 126
Common Group Codes for Objects . . . . . . . . . . . 126
ACAD_PROXY_OBJECT . . . . . . . . . . . . . . . 127
ACDBDICTIONARYWDFLT . . . . . . . . . . . . . . 128
ACDBPLACEHOLDER . . . . . . . . . . . . . . . . 129
DICTIONARY . . . . . . . . . . . . . . . . . . 130
DICTIONARYVAR . . . . . . . . . . . . . . . . . 131
DIMASSOC . . . . . . . . . . . . . . . . . . . 132
FIELD . . . . . . . . . . . . . . . . . . . . . 134
GROUP . . . . . . . . . . . . . . . . . . . . 135
IDBUFFER . . . . . . . . . . . . . . . . . . . 136
IMAGEDEF . . . . . . . . . . . . . . . . . . . 137
IMAGEDEF_REACTOR. . . . . . . . . . . . . . . . 138
LAYER_INDEX . . . . . . . . . . . . . . . . . . 138
LAYER_FILTER . . . . . . . . . . . . . . . . . . 139
LAYOUT . . . . . . . . . . . . . . . . . . . . 140
MATERIAL . . . . . . . . . . . . . . . . . . . 142
MLINESTYLE. . . . . . . . . . . . . . . . . . . 147
OBJECT_PTR. . . . . . . . . . . . . . . . . . . 149
PLOTSETTINGS . . . . . . . . . . . . . . . . . . 149
RASTERVARIABLES. . . . . . . . . . . . . . . . . 152
SPATIAL_INDEX . . . . . . . . . . . . . . . . . 153
SPATIAL_FILTER . . . . . . . . . . . . . . . . . 154
SORTENTSTABLE . . . . . . . . . . . . . . . . . 156
TABLESTYLE . . . . . . . . . . . . . . . . . . . 157
VBA_PROJECT . . . . . . . . . . . . . . . . . . 158
WIPEOUTVARIABLES . . . . . . . . . . . . . . . . 159
XRECORD . . . . . . . . . . . . . . . . . . . 160
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