Data Attributes
The following ready-to-use attributes are provided:
Shape attributes, which contain shapes and their evolution
Standard attributes, a collection of common CAD/CAM attributes including:
Real
Integer
Name
Constrain
Visualization attributes, which implement AIS viewer capabilities using application data (For more information on AIS, see section AIS of the Visualization Chapter.)
Function attributes which regenerate any data affected by modifications made in a document
If you have more questions on attributes, read the OCAF User's Guide (pdf format).