Jeff discusses one of the lesser known techniques of referencing.
The most common and simplest use of profiling occurs when there is a chance in elevation from one surface to another. Essentially, a profile is a vertical section imposed on a plan or elevation. In reality, a plan is a horizontal cross section of a floor/area typically cut just above the window sill. Profiles typically found on plans and elevations highlight contours, curves, setbacks, steps, pilasters, vaults, domes, etc.