| DTM数据的三维可视化及其实现 |
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| 引用本文： | 张国瑾,徐飞,梁婧.DTM数据的三维可视化及其实现[J].西安工业大学学报,2013(7):567-571. |
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| 作者姓名： | 张国瑾 徐飞 梁婧 |
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| 作者单位： | 西安工业大学宣传部;西安工业大学计算机科学与工程学院 |
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| 基金项目： | 陕西省教育厅专项科研计划项目(11JK1033) |
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| 摘 要： | 针对数字地形模型（Digital Terrain Model,DTM）数据三维可视化问题.提出了采用Delaunay三角化法得到地形采样点,并用已知数据对三角曲面进行插值加密,生成规则格网（GRID）数据结构的方法,实现三维地形高度真实感的可视化效果.再利用面向对象的设计与编程方法、VC＋＋6.0开发语言以及OpenGL图形库完成了基于三维地形模型的显示,并对三维地形显示中的关键技术即模型的实时动态显示技术、三维地形交互技术进行了实现.
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| 关 键 词： | 三维地形 DTM OpenGL 可视化 |
3D Visualization of DTM Data |
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| Authors: | ZHANG Guo-jin XU Fei LIANG Jing |
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| Affiliation: | 1.Publicity Department,Xi ’ an Technological University,Xi ’ an 710021,China;2.School of Computer Science and Engineering,Xi ’ an Technological University,Xi ’ an 710021,China) |
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| Abstract: | The paper decribes a method to achieve highly realistic three-dimensional terrain visualization.First,Delaunay triangulation method was used to get the terrain sampling points and the known data were used to get interpolation encryption on the triangular surface,thus generating the rule grid data structure.And then the research on the real expression of the 3Dterrain was conducted by the object-oriented design and programming method,VC＋＋6.0and OpenGL.Finally,the key of 3Dterrain display——the real time dynamic display technique and 3D terrain interaction technique were implemented. |
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| Keywords: | 3Dterrain digital terrain model open graphic library visualization |
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