Cloud of points a set of in the system of coordinates is three-dimensional. Reverse engineering, art and convert cloud points to model three-dimensional CAD. The cloud points of the three-dimensional points is that the characteristics of the outer surface of an object to describe. These points of analysis environment object and gather information, shape it to the help of a scanner, three-dimensional to be achieved. The technology used in collecting information from the surface form, two types of contact and non-contact. In a state of contact of the devices (CMM), and in a state of non-contact laser and light structured.