IFC files have a tree of products formed by either decompose or containment relations. The viewer product and shape tree shows as much of this structure as it can.
Top-level IFC Projects are shown first, with any contained products
appearing as a subtree of components. Each product is tagged with a
general description of its type, like WALL
, BEAM
,
or BUILDING
. If you are interested in the underlying IFC
instances in the IFC file,
tooltips on the tree will give you the IDs
of the important objects.