The quatrefoil is a common motif in medieval architecture. It is used as the plan for columns and compound piers in the Romanesque period (9th-12th centuries) and as wall openings and tracery in the Gothic period (12th-15th centuries).

A bracket is a support that cantilevers from a wall surface in order to support a structural member that does not extend to the ground.

The RoundedRectangle is useful Shape that can be used in plan or in section. It is controlled by width and height handles, as is a Rectangle Shape, but it also has a rounded corner radius handle. A similar result can be achieved by setting the roundness of a Rectangle, but with the segs parameter of the RoundedRectangle, you have more control of the segmentation of the corner curves.

The Rectangle