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1001<br />
AME_SOL<br />
1002<br />
{<br />
1070<br />
0<br />
1071<br />
1.95059E+06<br />
1070<br />
519<br />
1010<br />
2.54717<br />
1020<br />
2.122642<br />
1030<br />
2.049201<br />
1005<br />
ECD<br />
1005<br />
EE9<br />
1005<br />
0<br />
1040<br />
0.0<br />
1040<br />
1.0<br />
1000<br />
MILD_STEEL<br />
The group code 1001 indicates the beginning of extended data. In contrast<br />
to normal entity data, with extended data the same group code can appear<br />
multiple times, and order is important.<br />
Extended data are grouped by registered application name. Each registered<br />
application’s group begins with a 1001 group code with the application<br />
name as the string value. Registered application names correspond to APPID<br />
symbol table entries.<br />
An application can use as many APPID names as needed. APPID names are<br />
permanent, although they can be purged if they aren’t currently used in the<br />
drawing. Each APPID name can have no more than one data group attached<br />
to each entity. Within an application’s group, the sequence of extended data<br />
groups and their meaning is defined by the application.<br />
The extended data group codes are listed in the following table.<br />
Extended data group codes and descriptions<br />
Entity name Group code Description<br />
String 1000 Strings in extended data can be up to 255 bytes long (with the<br />
256th byte reserved for the null character)<br />
Extended Data | 171
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