| 基于OpenGL三维非均匀FDTD网格图形的消隐处理* |
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| 引用本文： | 周国祥,王春艳. 基于OpenGL三维非均匀FDTD网格图形的消隐处理*[J]. 计算机应用研究, 2008, 25(1): 285-284 |
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| 作者姓名： | 周国祥 王春艳 |
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| 作者单位： | 合肥工业大学,计算机与信息学院,合肥,230009 |
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| 基金项目： | 教育部科学技术研究项目 , 安徽省自然科学基金 |
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| 摘 要： | 在分析了三维非均匀FDTD网格图形性质及计算数据结构特点的基础上,提出了一种基于OpenGL深度缓冲机制的绘图方法,采用多边形深度偏移量修正法进行精细化的消隐修正,实现了网格图形的快速生成与高效消隐,大大提高了FDTD仿真及模拟计算网格图形的可视化效果,并在此基础上设计并实现了基于OpenGL的三维网格模型仿真系统.最后,以U型天线的网格图形为例,展示其可视性.
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| 关 键 词： | 非均匀FDTD网格 OpenGL 图形消隐 深度缓存 多边形深度偏移量修正 |
| 文章编号： | 1001-3695（2008）01-0285-03 |
| 收稿时间： | 2006-11-26 |
| 修稿时间： | 2007-01-04 |
Processing hidden image of 3D non uniform FDTD meshes on OpenGL |
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| ZHOU Guo xiang,WANG Chun yan. Processing hidden image of 3D non uniform FDTD meshes on OpenGL[J]. Application Research of Computers, 2008, 25(1): 285-284 |
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| Authors: | ZHOU Guo xiang WANG Chun yan |
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| Affiliation: | (College of Computer Science, Hefei University of Technology, Hefei 230009, China) |
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| Abstract: | Based on the analysis of the graphic characteristics of 3D meshes and the nature of data structure, according to depth-buffer mechanism of OpenGL, a new plotting way was presented, which adopt polygon depth offset modification in refined hidden-image. The way could increase the plotting speed and achieve high efficient hidden-image, so that the visual effect of mesh graphics for FDTD emulation and simulation was enhanced better, finally, a 3D grids pattern simulation system based on OpenGL was developed. As a sample, the U-shaped antenna meshes were demonstrated for visualization. |
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| Keywords: | non-uniform FDTD grids OpenGL hidden-image Z-buffer polygon depth offset modification |
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