The profile is a list of points, each giving a diameter at a distance along the shape’s local axis. SIMA revolves the resulting profile curve about that axis to form the surface; the included angle controls how far around the axis the surface is swept (360° gives a full body of revolution, a smaller angle gives an open arc).

A plate may be solid or hollow. When Hollow is enabled the plate is given a wall of finite Thickness; the thickness field is hidden for solid plates because thickness only applies to hollow plates.

The shape is placed in the model by the shared pose fields inherited from the generic shape: position (X, Y, Z) locates the local origin and rotation (Rot X, Rot Y, Rot Z) orients the axis of revolution, both relative to the owning body’s coordinate system.

The Create example action in the Profile section is a quick way to see a valid configuration: it populates a hollow docking cone (included angle 360°, hollow, 0.02 m wall thickness, and a sample cylindrical-throat-to-wider-rim profile), replacing any existing profile items.