Fig. 6

An example illustrating the process of setting up three basic mappings between a CAD model and a surface mesh created on the model. a is the example sphere model composed of 4 surface patches. In (b), a surface mesh vertex at the center of four colored edges is highlighted, which is searched and classified on the corresponding model point. In (c), all the edges classified on the model curves are colored. In (d), the surface facets are colored differently, illustrating that they are classified on different surface patches