Overlay Grid Based Geometry Cleanup.
Jiangtao Hu, Y. K. Lee, Ted D. Blacker, Jin Lian Zhu · 2002
A newly developed system for defining watertight volume geometry on imported foreign CAD models is described. This system is based on an overlay grid mesher that is being developed in the GAMBIT preprocessing code. It is being explored as an alternative way of cleaning dirty geometries. This overlay meshing based geometry cleanup enables an automatic volume reconstruction from inconsistent B-Rep surface geometries. These inconsistencies include common edges defined twice, small gaps, holes and overlapping of faces. This new approach holds the promise of higher automation levels, speed and robustness when compared to more traditional interactive cleanup methodologies.