COORDINATION: In classical architecture, locating moldings relative to each other is not a free-for-all, but involves coordinating individual parts to make an ordered whole. This is usually attained by means of geometric alignments. For instance, when a TORUS is set over a PLINTH, its outermost point is typically aligned with a vertical plane extended up from the face of the flat member. A vertical axis is then passed up through the geometric center of the TORUS to locate the tangent point of the half-round bead immediately above. In turn, another vertical axis from the center-point of the bead establishes the face of the fillet which sits upon the bead, and so on.
[architectural moldings? ... thousands online with downloadable CAD files.]
[via Traditional Building Magazine]
