Advancing mesh completion for digital modeling and manufacturing

摘要

The preservation of the quality of 3D data along the possibly long chain from digital scanning to 3D model deployment is of paramount importance within an increasing number of advanced geometry design processes in the mesh domain, including digital fabrication. However, in many cases, model finalization is not a trivial task, especially when dealing with multiple dense meshes that are not watertight and may be generated by creative editing procedures such as partial model combinations, customized hollowing, free-form escape holes, sectioning planes or other cutting surfaces. This evidences how non-trivial mesh composition and completion responding to quality preservation needs is still challenging in various demanding application contexts. In this paper, we propose an extremely versatile solution that can handle all the previously described issues in a user-friendly way and which is based on an original multi-front advancing triangulation technique guided by implicit surfaces and based on a prioritization mechanism that drastically reduces front interferences, concurrently producing high quality meshing. Compared to other surface reconstruction, mesh completion and creative mesh editing solutions, our approach offers a high degree of preservation of the pre-existing mesh components, a high quality of interconnections between them and completion parts, the ability to track and to reproduce complex geometries and also to adapt to sharp geometric variations in the guiding field, typically emerging during advanced editing and finalization of 3D printable digital models.