Chinese Journal of Computers   Full Text
Title	A OutofCore Algorithm for Interactive Rigid Body Operation of 3D Model
Authors	TIAN Feng-Lin HUA Wei BAO Hu-Jun
Address	(State Key Laboratory of CAD & CG, Zhejiang University, Hangzhou 310058)
Year	2009
Issue	No.8(1589—1594)
Abstract &   Background	Abstract The paper presents an out-of-core algorithm for interactively rigid transformations operation of 3D models. The proposed algorithm solves the problem for inserting,removing and translating 3D models in out-of-core scene-graph. This paper also proposes a dual-BSP spatial scene-graph,which can keep the BSP structure of every single model not changed,and adaptively update the entire bsp scene-graph.It guarantees that spatial data structure can still be efficiently utilized while interaction. Keywords OutofCore; BSP; interactive operation Background This paper is supported by the National Basic Research Program (973 Program) of China (No.2002CB312102), National Natural Science Foundation of China (grant No.60773184) and Specialized Research Fund for the Doctoral Program of Higher Education (No.705027). This study aims to high-end system of interactive editing of massive model. Adaptively restriction of the space index structure is one of the key problem for the interactive editing. The representative method of space index restriction is global restriction. Much research work has been done on this subject. However, global restriction is difficult for massive model,for the cost of restriction is too high .Another key problem is manipulation of the persistence representation of out-of-core data(usually on hard disk),few researches have been done on this subject.This paper solves the problem for inserting, removing and translating 3D models in out-of-core scene-graph.