Patent ID: 7672822

Claim:
A computer-implemented method of processing a three-dimensional model of a physical object, the three-dimensional model having at least one model part, the method comprising: in the three-dimensional model having at least one model part, creating a model part and two or more positions of the model part using a three-dimensional design module, the positions created being consistent with a constraint established for the model part; displaying one of the positions of the model part in a two-dimensional drawing produced by a computer-aided design system; selecting an other position of the model part for display in the two-dimensional drawing produced by the computer-aided design system; traversing a model hierarchy comprising the displayed position and the selected other position, the model hierarchy relating the displayed position and selected other position of the model part, the displayed position and the selected other position are positions of the model part that are created in three-dimensions; and based on the traversing, displaying together the displayed position and the selected other position in the two-dimensional drawing produced by the computer-aided design system.