CAJ | 학술논문

基于B样条绘制的线缆模型逼真度高、计算量小，被广泛应用于虚拟现实环境，但其碰撞检测算法鲜见研究。提出基于图像的算法，分3层对待检测链表中的刚性体和线缆进行碰撞检测。3层碰撞检测分别是：线缆包围盒与刚性体包围盒碰撞检测；线缆与刚性体包围盒碰撞检测；面片层线缆与刚性体碰撞精确检测。每一层检测均基于模型在坐标面的投影是否相交来判断碰撞。应用表明：该算法能满足虚拟维修真实感的需要。
기우B양조회제적선람모형핍진도고、계산량소，피엄범응용우허의현실배경，단기팽당검측산법선견연구。제출기우도상적산법，분3층대대검측련표중적강성체화선람진행팽당검측。3층팽당검측분별시：선람포위합여강성체포위합팽당검측；선람여강성체포위합팽당검측；면편층선람여강성체팽당정학검측。매일층검측균기우모형재좌표면적투영시부상교래판단팽당。응용표명：해산법능만족허의유수진실감적수요。
The model of cable based on B-spline consists of high fidelity and small amount of calcula-tion.It has been used in VR early.However,the collision detection is rarely researched.An algo-rithm based on projection is proposed.It detects the collisions of cable and rigid bodies within detec-tion list by three steps.First is the collision detection of the bounding boxes of cable and rigid bodies;Second is cable and rigid bodies’box;Third is cable and rigid bodies by triangle facets intersection test.The application shows that the algorithm consists high fidelity and small amount of calculation in virtual maintenance.