TY - GEN
T1 - Evaluation of collisions between polygonal models in virtual assembly
AU - Shi, Jiancheng
AU - Liu, Jianhua
AU - Ning, Ruxin
AU - Hou, Weiwei
PY - 2012
Y1 - 2012
N2 - Collisions between polygonal models may not reflect collisions between real objects in reality because of polygonal approximation and designed tolerance. This problem reduces the reliability of simulation in virtual assembly and sometimes even results in wrong conclusions. To solve the problem, we propose a novel collision evaluation algorithm based on generalized penetration depth, approximation information and tolerance information. Given two interfered polygonal models, generalized penetration depth is calculated using relative motion information. Then two thresholds, which are based on approximation information and tolerance information, are integrated to evaluate collisions between polygonal models. In order to distinguish the status of collisions for furfure analysis, the collisions between polygonal models are categorized into three types by evaluation algorithm, namely real collision, potential collision and fake collision. Computational efficiency and accuracy of the evaluation algorithm are verified in virtual assembly.
AB - Collisions between polygonal models may not reflect collisions between real objects in reality because of polygonal approximation and designed tolerance. This problem reduces the reliability of simulation in virtual assembly and sometimes even results in wrong conclusions. To solve the problem, we propose a novel collision evaluation algorithm based on generalized penetration depth, approximation information and tolerance information. Given two interfered polygonal models, generalized penetration depth is calculated using relative motion information. Then two thresholds, which are based on approximation information and tolerance information, are integrated to evaluate collisions between polygonal models. In order to distinguish the status of collisions for furfure analysis, the collisions between polygonal models are categorized into three types by evaluation algorithm, namely real collision, potential collision and fake collision. Computational efficiency and accuracy of the evaluation algorithm are verified in virtual assembly.
KW - Collision Evaluation
KW - Generalized Penetration Depth
KW - Virtual Assembly
UR - http://www.scopus.com/inward/record.url?scp=84864214868&partnerID=8YFLogxK
U2 - 10.1109/CSCWD.2012.6221880
DO - 10.1109/CSCWD.2012.6221880
M3 - Conference contribution
AN - SCOPUS:84864214868
SN - 9781467312127
T3 - Proceedings of the 2012 IEEE 16th International Conference on Computer Supported Cooperative Work in Design, CSCWD 2012
SP - 601
EP - 608
BT - Proceedings of the 2012 IEEE 16th International Conference on Computer Supported Cooperative Work in Design, CSCWD 2012
T2 - 2012 IEEE 16th International Conference on Computer Supported Cooperative Work in Design, CSCWD 2012
Y2 - 23 May 2012 through 25 May 2012
ER -