AutoCAD® 2002 - Autodesk

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SORTENTSTABLE. . . . . . . . . . . . . . . . . . 138 VBA_PROJECT . . . . . . . . . . . . . . . . . . 139 XRECORD . . . . . . . . . . . . . . . . . . . . 140 Chapter 8 THUMBNAILIMAGE Section . . . . . . . . . . . 143 THUMBNAILIMAGE Section Group Codes. . . . . . . . . . 144 Appendix A Drawing Interchange File Formats . . . . . . . . 145 ASCII DXF Files . . . . . . . . . . . . . . . . . . 146 General DXF File Structure . . . . . . . . . . . . . 146 Group Codes in DXF Files . . . . . . . . . . . . . 147 ASCII Control Characters in DXF Files . . . . . . . 147 Header Group Codes in DXF Files . . . . . . . . . . 148 Class Group Codes in DXF Files . . . . . . . . . . . 148 Symbol Table Group Codes in DXF Files . . . . . . . . 149 Symbol Table Example . . . . . . . . . . . . 149 Blocks Group Codes in DXF Files . . . . . . . . . . . 152 Entity Group Codes in DXF Files . . . . . . . . . . . 153 Object Group Codes in DXF Files . . . . . . . . . . . 153 Writing a DXF Interface Program . . . . . . . . . . . 154 Reading a DXF File . . . . . . . . . . . . . 154 Writing a DXF File . . . . . . . . . . . . . 156 Binary DXF Files . . . . . . . . . . . . . . . . . . 158 Slide Files . . . . . . . . . . . . . . . . . . . . 159 Old Slide Header . . . . . . . . . . . . . . . . 162 Slide Library Files. . . . . . . . . . . . . . . . . . 163 Appendix B Advanced DXF Issues . . . . . . . . . . . . 165 Database Objects . . . . . . . . . . . . . . . . . . 166 Persistent Inter-Object Reference Handles . . . . . . . . . . 166 Pointer and Ownership References . . . . . . . . . . 167 Hard and Soft References . . . . . . . . . . . . . 167 Arbitrary Handles. . . . . . . . . . . . . . . . 167 1005 Group Codes . . . . . . . . . . . . . . . 168 Subclass Markers . . . . . . . . . . . . . . . . . . 168 Extension Dictionary and Persistent Reactors . . . . . . . . . 170 Extended Data . . . . . . . . . . . . . . . . . . 170 Object Coordinate Systems (OCS) . . . . . . . . . . . . 173 Arbitrary Axis Algorithm . . . . . . . . . . . . . . . 175 Index . . . . . . . . . . . . . . . . . . 177 vi | Contents
Revisions to the DXF Reference This topic lists the revisions to the DXF Reference from In this chapter the last update to the DXF Reference. The version number of this DXF Reference is u16.1.01. Any updates to this reference will be available at http:// www.autodesk.com/techpubs/autocad/dxf/. ■ Objects Section 1
Page 1 and 2: AutoCAD ® 2002 DXF Reference Guide
Page 3 and 4: Contents Revisions to the DXF Refer
Page 5: LWPOLYLINE . . . . . . . . . . . .
Page 9: Objects Section | 3
Page 12 and 13: Organization of This Reference The
Page 14 and 15: Group code value types (continued)
Page 16 and 17: Group codes by number (continued) G
Page 22 and 23: HEADER Section Group Codes The foll
Page 24 and 25: DXF system variables (continued) Va
Page 34 and 35: the values in the VPORT table entri
Page 37 and 38: CLASSES Section 3 The group codes d
Page 39 and 40: Default Class Values AutoCAD regist
Page 41 and 42: TABLES Section 4 The group codes de
Page 43 and 44: Group codes that apply to all symbo
Page 45 and 46: APPID group codes Group codes Descr
Page 47 and 48: DIMSTYLE group codes (continued) Gr
Page 49 and 50: DIMSTYLE group codes (continued) Gr
Page 51 and 52: LTYPE The following group codes app
Page 53 and 54: STYLE group codes (continued) Group
Page 55 and 56: Each 71/13,23,33 pair defines the U
Page 57 and 58:
VIEW with UCS group codes Group cod
Page 59 and 60:
VPORT group codes (continued) Group
Page 61 and 62:
BLOCKS Section 5 The group codes de
Page 63 and 64:
Block group codes (continued) Group
Page 65 and 66:
ENTITIES Section 6 This chapter pre
Page 67 and 68:
Group codes that apply to all graph
Page 69 and 70:
3DSOLID The following group codes a
Page 71 and 72:
Arc group codes (continued) Group c
Page 73 and 74:
page 60. For information about abbr
Page 75 and 76:
CIRCLE The following group codes ap
Page 77 and 78:
Common dimension group codes (conti
Page 79 and 80:
and formatting used in this table,
Page 81 and 82:
Angular dimension group codes (cont
Page 83 and 84:
For information about abbreviations
Page 85 and 86:
For information about abbreviations
Page 87 and 88:
Hatch boundary path data group code
Page 89 and 90:
Spline edge data group codes (conti
Page 91 and 92:
Image group codes (continued) Group
Page 93 and 94:
Leader group codes (continued) Grou
Page 95 and 96:
Lwpolyline group codes Group codes
Page 97 and 98:
Mline group codes (continued) Group
Page 99 and 100:
Mtext group codes (continued) Group
Page 101 and 102:
Ole2frame group codes (continued) G
Page 103 and 104:
POLYLINE The following group codes
Page 105 and 106:
ordering. Programs that generate po
Page 107 and 108:
Shape group codes (continued) Group
Page 109 and 110:
Spline group codes (continued) Grou
Page 111 and 112:
Text group codes (continued) Group
Page 113 and 114:
Trace group codes (continued) Group
Page 115 and 116:
VIEWPORT index is negative, the edg
Page 117 and 118:
Viewport group codes (continued) Gr
Page 119 and 120:
XLINE The following group codes app
Page 121 and 122:
OBJECTS Section 7 This chapter pres
Page 123 and 124:
Common object group codes Group cod
Page 125 and 126:
ACDBDICTIONARYWDFLT group codes Gro
Page 127 and 128:
DICTIONARY group codes (continued)
Page 129 and 130:
DIMASSOC group codes (continued) Gr
Page 131 and 132:
IDBUFFER The following group codes
Page 133 and 134:
IMAGEDEF_REACTOR group codes Group
Page 135 and 136:
LAYOUT group codes (continued) Grou
Page 137 and 138:
MLINESTYLE The following group code
Page 139 and 140:
OBJECT_PTR group codes (continued)
Page 141 and 142:
PLOTSETTINGS group codes (continued
Page 143 and 144:
SPATIAL_INDEX group codes (continue
Page 145 and 146:
SORTENTSTABLE group codes Group cod
Page 147 and 148:
Xrecord group codes Group codes Des
Page 149 and 150:
THUMBNAILIMAGE Section 8 This chapt
Page 151 and 152:
Drawing Interchange File Formats A
Page 153 and 154:
■ ■ ■ ■ VIEW (view table) V
Page 155 and 156:
Symbol Table Group Codes in DXF Fil
Page 157 and 158:
0 STYLE Second entry begins. No xda
Page 159 and 160:
Entity Group Codes in DXF Files The
Page 161 and 162:
' ReadDXF extracts specified code/v
Page 163 and 164:
The following Visual Basic subrouti
Page 165 and 166:
Slide Files The type of data follow
Page 167 and 168:
Slide file data records (continued)
Page 169 and 170:
Old slide file header (continued) F
Page 171 and 172:
Advanced DXF Issues B This appendix
Page 173 and 174:
NOTE If you use 1005 xdata group co
Page 175 and 176:
999 FOOGRANDCHILD, defined by class
Page 177 and 178:
1001 AME_SOL 1002 { 1070 0 1071 1.9
Page 179 and 180:
Extended data group codes and descr
Page 181 and 182:
Arbitrary Axis Algorithm The arbitr
Page 183 and 184:
Index *Model_Space block definition
Page 185 and 186:
DIMTIH DXF system variable, 20 DIMT
Page 187 and 188:
pointer references vs. ownership re
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