Note: This can be any element that will describe a plane. The simplest is a line string with two segments. A curve is also valid as long as a plane can be derived.

Note: This can be any element that contains a line or a curve. It can be a B-spline curve, the edge of a surface or solid that can be used for a sweep curve, and so on. In the preview there will be a direction arrow and a rotation ball on both elements. The direction of the arrow can be changed as needed. The location of the arrow can be changed by dragging with the Data button pressed. The rotation arrow can be used to change the rotation of the profile.