Using the Boundary Representation Library

This section shows how to use the AcBr library (acbr25.dbx) to access topological, geometric, and analytic data contained in certain AutoCAD ^® entities, such as solids, bodies, and regions (that is, objects of class AcDb3dSolid, AcDbBody, and AcDbRegion), and myriad derived types (for example, objects of class AcDbPart, AcAsSurface, and compatible client-defined types). For the purpose of brevity, this section refers to all of these objects collectively as solids.