Because the model objects are created based on the wall or plate axis surfaces, gaps usually exists between neighboring objects (see detail).
As a remedy, all objects are joined with one another during the transformation and, if necessary, marginally reduced or enlarged. If for walls standing on top of each other the wall axes do not match up, for instance due to differing wall thickness, it might be necessary to add transition surfaces that are not perpendicular. In addition, openings that are close to the edge are adjusted.
The described operations help to improve the continuity between the model objects. This can eliminate the need for manual corrections in many cases. The following illustrations show the joined model objects and the element mesh that has been created as a result.