Sweeps (i.e. extrusions, lofts, blends) (SWE)
This involves taking a 2D shape (often called the “profile”) and moving it along a 3D path, generating a 3D shape. The resulting shape is typically smooth and continuous, with its cross-section changing gradually along the length of the path. Sweep geometry can be useful for representing a variety of objects, such as pipes, cables, and architectural details like moldings. In IFC, sweep geometry can be represented using the IfcExtrudedAreaSolid, IfcRevolvedAreaSolid, and IfcSweptAreaSolid entities.