There are two modes of objects recognition on initial plans - automatic and semi-automatic:

 In automatic mode, all the plan, or only its selected elements, is recognized or. Recognition is carried out without the participation of the user. It is only possible to check the results after recognition of all objects;

 In a semi-automatic mode, separate objects are recognized. Recognition is supervised by the user. The user specifies objects which it is necessary to recognize. After object recognition, the user checks the results and decides either to repeat recognition or to start recognition of the following object