Drawing Hierarchy (Subpictures)
- Last UpdatedNov 28, 2025
- 1 minute read

A drawing is hierarchically structured in 3 subpicture levels. These levels always exist for all drawings, and all geometry is always located below the 3rd subpicture (Component) level. The subpicture structure can be created and re-arranged freely by the user, see the subpicture Create, Split and Regroup functions. A subpicture can be used for group-wise manipulation of drawing elements, for example, move, delete, change color
Model projections are always added to a drawing in a predefined subpicture hierarchy. Each projection view (1st level) contains sub-views (2nd level) for each of:
-
Hull parts
-
Curved panels
-
Hull surfaces
-
Fairing curves
-
Draft
-
Assemblies
2D information that is added to a drawing is either placed into the currently selected subpicture, or the closest one (automatic). If the currently selected subpicture is on the 1st level, a new 2nd and 3rd level is created for each new entity that is added. If the currently selected subpicture is on the 2nd level, a new 3rd level is created for each entity.