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| 面向动态流程工厂模型的快速分层层次细节法 | |
| 引用本文： | 苏智勇,Tang Weiqing,李蔚清,Shi Nianfeng,何涛.面向动态流程工厂模型的快速分层层次细节法[J].计算机辅助设计与图形学学报,2008,20(8). |
| 作者姓名： | 苏智勇 Tang Weiqing 李蔚清 Shi Nianfeng 何涛 |
| 作者单位： | 1. 中国科学院计算技术研究所北京,100190;中国科学院研究生院,北京,100049 2. 南京理工大学计算机科学与技术学院,南京,210094 3. 中国科学院计算技术研究所北京,100190;北京中科辅龙计算机技术股份有限公司,北京,100085 |
| 摘 要： | 分析了现有基于面片的分层层次细节算法在处理大规模动态流程工厂模型时存在的预处理时间过长、更新操作耗时等不足.提出一种新的基于基本体元的快速分层层次细节方法.该方法在体元级别对设备和元件进行聚合,对管线进行分割,建立场景图,然后基于几何参数和形状特征计算各体元的层次细节.利用管子及其元件的拓扑连接关系构成"组合管子",在体元级别对其进行合并简化.实验结果表明,对具有10M左右面片复杂度的动态流程工厂模型,该方法在普通PC机上能够在保证一定绘制质量的前提下将模型绘制速率平均提高3倍左右,并且将预处理时间控制在7min以内. |
| 关 键 词： | 流程工厂 设计校审 网格简化 层次细节模型 分层层次细节模型 |
A Fast Approach for Constructing Hierarchical Levels of Details of Dynamic Process Plant Model |
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| Su Zhiyong,Tang Weiqing,Li Weiqing,Shi Nianfeng,He Tao.A Fast Approach for Constructing Hierarchical Levels of Details of Dynamic Process Plant Model[J].Journal of Computer-Aided Design & Computer Graphics,2008,20(8). | |
| Authors: | Su Zhiyong Tang Weiqing Li Weiqing Shi Nianfeng He Tao |
| Affiliation: | Su Zhiyong1,2)Tang Weiqing1,3)Li Weiqing4)Shi Nianfeng1,2)He Tao1,3)1)(Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190)2)(Graduate University of Chinese Academy of Sciences,Beijing 100049)3)(Beijing Zhongke Fulong Computers Technology Co.,LTD,Beijing 100085)4)(College of Computer Science , Technology,Nanjing University of Science , Technology,Nanjing 210094) |
| Abstract: | To reduce the long preprocessing and updating time of current hierarchical levels of detail(HLOD)algorithms for large,dynamic process plants,a new HLOD algorithm based on the entity of the dynamic process plant models is proposed.The plant is represented by a scene graph based on the grouping and partitioning of the entities.The HLOD of each entity is computed conforming to its geometry parameters and shape feature.The pipe and its adjoining components are combined into a joint entity.Our algorithm can be i... |
| Keywords: | process plant design review mesh simplification levels of detail hierarchical levels of detail |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |