Group codes define the type of the associated value as an integer, a floating-point number, or a string, according to the following table of group code ranges.
|
Group code value types |
|
|---|---|
|
Code range |
Group value type |
|
0-9 |
String (with the introduction of extended symbol names in AutoCAD 2000, the 255-character limit has been increased to 2049 single-byte characters not including the newline at the end of the line); see the "Storage of String Values" section for more information |
|
10-39 |
Double precision 3D point value |
|
40-59 |
Double-precision floating-point value |
|
60-79 |
16-bit integer value |
|
90-99 |
32-bit integer value |
|
100 |
String (255-character maximum, less for Unicode strings); see the "Storage of String Values" section for more information |
|
102 |
String (255-character maximum, less for Unicode strings); see the "Storage of String Values" section for more information |
|
105 |
String representing hexadecimal (hex) handle value |
|
110-119 |
Double precision floating-point value |
|
120-129 |
Double precision floating-point value |
|
130-139 |
Double precision floating-point value |
|
140-149 |
Double precision scalar floating-point value |
|
160-169 |
64-bit integer value |
|
170-179 |
16-bit integer value |
|
210-239 |
Double-precision floating-point value |
|
270-279 |
16-bit integer value |
|
280-289 |
16-bit integer value |
|
290-299 |
Boolean flag value |
|
300-309 |
Arbitrary text string; see the "Storage of String Values" section for more information |
|
310-319 |
String representing hex value of binary chunk |
|
320-329 |
String representing hex handle value |
|
330-369 |
String representing hex object IDs |
|
370-379 |
16-bit integer value |
|
380-389 |
16-bit integer value |
|
390-399 |
String representing hex handle value |
|
400-409 |
16-bit integer value |
|
410-419 |
String; see the "Storage of String Values" section for more information |
|
420-429 |
32-bit integer value |
|
430-439 |
String; see the "Storage of String Values" section for more information |
|
440-449 |
32-bit integer value |
|
450-459 |
Long |
|
460-469 |
Double-precision floating-point value |
|
470-479 |
String; see the "Storage of String Values" section for more information |
|
480-481 |
String representing hex handle value |
|
999 |
Comment (string); see the "Storage of String Values" section for more information |
|
1000-1009 |
String (same limits as indicated with 0-9 code range); see the "Storage of String Values" section for more information |
|
1010-1059 |
Double-precision floating-point value |
|
1060-1070 |
16-bit integer value |
|
1071 |
32-bit integer value |
String values stored in a DXF file can be expressed in plain ASCII, UTF-8, CIF (Common Interchange Format), and MIF (Maker Interchange Format) formats. The UTF-8 format is only supported in the AutoCAD 2007 DXF and later file formats. When the AutoCAD program writes a DXF file, the format in which string values are written is determined by the DXF file format chosen. String values are written out in these formats:
String values containing Unicode characters are represented with control character sequences.
For example, "TEST\U+7F3A\U+4E4F\U+89E3\U+91CA\U+6B63THIS\U+56FE"
String values can be stored with these dxf group codes: