2D drawings can be depicted using "CADD" (Computer Aided Design Document) objects in OpenBrIM. There are three methods for creating CAD documents in OpenBrIM:
The "CADD" object represents an empty 2D drawing document. Child elements of the "CADD" object, such as "CADDLine" and "CADDEllipse," can be used to define the elements of the drawing.
The "CADDFrom3D" object generates a 2D drawing automatically from 3D objects.
The "CADDFromDoc" object creates a 2D drawing from a document, currently supporting only PDF documents.