ABSTRACT
Geometric modeling is the first step in the computer-aided engineering (CAE) analysis of a designed product. The objective is to encapsulate all geometric data pertaining to the part in a single model and specify all necessary material properties as additional information. In this context, solid modeling, as a branch of geometric modeling, refers to the geometric description of solid objects in their entirety. Solid models (1) must be complete: the graphical model must not be an ambiguous representation, (2) must have integrity: operation on geometric models must preserve integrity, such as maintaining the connection of edges at a point when it is moved, and (3) provide accuracy in modeling of complex shapes.
