| 摘要 |
<p>Computer implemented techniques for correlating faces between source (104) and target (108) data models in computer aided design (CAD) systems are provided. The techniques can involve computer software, hardware, and data structures. According to one embodiment, a technique involves selecting a point (120) in the source data model (104) that is interior to at least one source face (106). Next, a normal (124) is computed based on the interior point (120) and the source face (106). A set of target faces (132) is identified that contain the interior point (120), then a target normal (138) to the interior point (120) is computed with respect to a target face (146) in the set of target faces (132). The target normal (140) is compared to the source normal (124). If they match, then the source and target faces can be correlated. Additional steps include collecting other edge-connected target faces, using the first selected target face (146) as a base. As a result, the source face(s) (112) can be matched with one or more target faces (148), thereby allowing operations involving the source face (112) to be correlated to the target face (148).</p> |
