Exporting overlapping RAM Concept slab areas and openings to ISM objects is more complicated. The ISM repository creation and update operations will be less error-prone and less confusing if the RAM Concept slabs and openings map directly to ISM objects. The RAM Concept slab area and opening geometries and priorities will sometimes be modified before the export operation so that they will map directly to ISM objects.

The lowest priority RAM Concept slab area is expanded to contain overlapping slab areas and is then exported as a parent ISM surface member. Overlapping slab areas are exported as surface modifiers of the parent surface member. RAM Concept slabs that do not overlap are exported as separate ISM surface members. Any RAM Concept slab that does not have any effect on the slabs it overlaps is not exported.

ISM surface openings effectively have an infinite priority. In order to model ISM surface openings, any RAM Concept slab openings that are obscured by higher-priority slab areas are first trimmed to their effective shape. New slab openings are added to the RAM Concept model if the trimming operation splits an opening into two or more pieces. Openings that are completely obscured by higher-priority slab areas are not added to the ISM model.

The slab areas and slab opening priorities are compressed and reassigned as described for importing ISM surface members. You will be notified when the shape or priority of a RAM Concept slab area or opening is changed or when openings are added or removed. You can stop the export operation at any point and the RAM Concept model will not be changed.