| 大型有限元网格模型的快速简化与交互绘制 |
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| 引用本文： | 高峰,武殿梁,程奂翀,范秀敏.大型有限元网格模型的快速简化与交互绘制[J].机械设计与制造,2011(4). |
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| 作者姓名： | 高峰 武殿梁 程奂翀 范秀敏 |
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| 作者单位： | 上海交通大学计算机集成制造研究所,上海,200240 |
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| 基金项目： | 上海市信息化专项资金项目 |
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| 摘 要： | 随着有限元分析计算的复杂化,计算结果的数据量大大增加甚至超出内存限制.提出一种基于外存的多分辨率构建和绘制算法,采用自适应性二叉树对模型的包围盒进行划分,自底层向上简化网格数据及物理数据,构建模型的多分辨率层次结构,较好地保持了原始细节分布;在实时绘制时,采用基于视点的细节层次选择策略进行模型的跟新.实验结果表明,该算法计算速度较快,可以对大型有限元网格模型进行快速绘制并显示其物理计算结果.
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| 关 键 词： | 有限元网格模型 外存 网格简化 基于视点的绘制 |
Fast simplification and interactive rendering for large FEM mesh model |
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| GAO Feng,WU Dian-liang,CHENG Huan-chong,FAN Xiu-min.Fast simplification and interactive rendering for large FEM mesh model[J].Machinery Design & Manufacture,2011(4). |
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| Authors: | GAO Feng WU Dian-liang CHENG Huan-chong FAN Xiu-min |
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| Affiliation: | GAO Feng,WU Dian-liang,CHENG Huan-chong,FAN Xiu-min(Institute of Computer Integrated Manufacturing,Shanghai Jiao Tong University,Shanghai 200240,China) |
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| Abstract: | With the growth of Complexity for FEM analysis,the amount of data increases significantly even beyond the memory limit.It proposes a novel approach out-of-core for multi-resolution constructing and rendering for massive FEM meshes.It makes adaptive bintree partitions of the mesh bounding box and keeps the details of the original model.Meshes are simplified bottom-up.At rendering stage,the multi-resolution representation structure is refined and rendered with view-dependent LOD selection.Experimental results... |
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| Keywords: | FEM mesh model Out-of-core Mesh simplification View-dependent refinement |
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