nullnull支持网络化协同设计CAD的关键技术与实现方法
分析
定性数据统计分析pdf销售业绩分析模板建筑结构震害分析销售进度分析表京东商城竞争战略分析
网络化协同cad设计的两大问
题
快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题
网络化协同cad设计的两大问题一、设计的冲突
二、文件的传输速度
解决方法解决方法对于问题一
A Study on Collaborative Design Considering Features of Design
利用数据包络分析方法(DEA)计算设计的效率和权衡的方法(STM)发现并解决冲突。
DEA STM DEA STM 在约束条件下,使效率达到最大解决方法解决方法对于问题二
Geometric Simplification to Stream 3D Models for Collaborative Product Design
利用三维流技术进行模型的简化、传输及还原解决方法解决方法对于问题二
三维流技术实现流技术的关键算法实现流技术的关键算法三维模型的几何简化
在该文献中,提出了一种新的简化算法,来确定死亡顶点及崩溃边、崩溃方向顶点分类顶点分类null(the non-simple vertex here is either an interior edge one or a corner one).Criterion 1A for exampleCriterion 1A for exampleShortest edge -----决定崩溃
崩溃方向---Error Function:
Ei = | Ai – A0 | where i = 1 or 2 (1)
Where A0 refers to the surface area of all triangles sharing at least one of the vertices of the selected edge, and Ai refers to the surface area of all triangles sharing the final vertex after vertex i is collapsed. Hence, the edge will be collapsed in the direction that will produce the smallest error value.
null三维模型的几何简化
Simplification Framework简化框架Simplification Framework简化框架nullnullnull最小几何误差 最大几何误差参考文献参考文献A Study on Collaborative Design Considering Features of Design
Tomoyuki Miyashita and Hiroshi Yamakawa
ASME Conf. Proc. IDETC/CIE2002 (2002)
Volume 2: 28th Design Automation Conference
Geometric Simplification to Stream 3D Models for Collaborative Product Design W. D. Li, W. F. Lu, and Y. L. Cai ASME Conf. Proc. IDETC/CIE2005 (2005) Volume 3: 25th Computers and Information in Engineering Conference, Parts A and B