Feature-based multiresolution techniques for product design  

作　　者：LEE Sang Hun LEE Kunwoo 

机构地区：[1]School of Mechanical and Automotive Engineering, Kookmin University, Seoul 136-702, Korea [2]School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Korea

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2006年第9期1535-1543,共9页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the Ministry of Education and Human Re-sources Development (MOE), the Ministry of Commerce, Industry and Energy (MOCIE) and the Ministry of Labor (MOLAB) through the Fostering Project of the Lab of Excellency, Korea

摘　　要：3D computer-aided design (CAD) systems based on feature-based solid modelling technique have been widely spread and used for product design. However, when part models associated with features are used in various downstream applications, simplified models in various levels of detail (LODs) are frequently more desirable than the full details of the parts. In particular, the need for feature-based multiresolution representation of a solid model representing an object at multiple LODs in the feature unit is increasing for engineering tasks. One challenge is to generate valid models at various LODs after an arbitrary rearrangement of features using a certain LOD criterion, because composite Boolean operations consisting of union and subtraction are not commutative. The other challenges are to devise proper topological framework for multiresolution representation, to suggest more reasonable LOD criteria, and to extend applications. This paper surveys the recent research on these issues.3D computer-aided design （CAD） systems based on feature-based solid modelling technique have been widely spread and used for product design. However, when part models associated with features are used in various downstream applications, simplified models in various levels of detail （LODs） are frequently more desirable than the full details of the parts. In particular, the need for feature-based multiresolution representation of a solid model representing an object at multiple LODs in the feature unit is increasing for engineering tasks. One challenge is to generate valid models at various LODs after an arbitrary rearrangement of features using a certain LOD criterion, because composite Boolean operations consisting of union and subtraction are not commutative. The other challenges are to devise proper topological framework for multiresolution representation, to suggest more reasonable LOD criteria, and to extend applications. This paper surveys the recent research on these issues.

关 键 词：MULTIRESOLUTION Level of detail （LOD） FEATURE SOLID NON-MANIFOLD 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]