Identifying What Is To Be Drawn
The part of the model that is drawn in a Graphic view may be specified in two ways: by volumes and by lists. Both of these methods are extremely powerful ways of breaking down a large model into more manageable or more presentable chunks. The volume method is better for situations where the part or parts of the model that are to be included or excluded can conveniently be identified graphically; the list method makes use of the list syntax to identify the drawn part of the model.