| 一种基于嵌入式地形的三维数据建模与调度方法 |
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| 引用本文： | 林炎光,孙红胜,岳春生.一种基于嵌入式地形的三维数据建模与调度方法[J].测绘科学,2010,35(2):99-101. |
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| 作者姓名： | 林炎光 孙红胜 岳春生 |
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| 作者单位： | 信息工程大学信息工程学院,郑州,450002;信息工程大学信息工程学院,郑州,450002;信息工程大学信息工程学院,郑州,450002 |
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| 摘 要： | 本文针对嵌入式系统的内存资源及计算能力有限的特点,设计了一种基于线形四叉数结构的静态LOD(Level of Detail)地形,采用分层分块的方法来组织格网的地形数据。在此基础上,对数据动态调度过程中的相关问题进行了分析,实现了基于多分辨率LOD的二维地形数据调度算法,较好地解决了嵌入式系统地形数据的实时可视化问题。
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| 关 键 词： | 嵌入式系统 多分辨率LOD 数据调度 |
A method of modeling and scheduling of three-dimensional topographical data on the basis of embedded system |
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| LIN Yan-guang,SUN Hong-sheng,YUE Chun-sheng.A method of modeling and scheduling of three-dimensional topographical data on the basis of embedded system[J].Science of Surveying and Mapping,2010,35(2):99-101. |
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| Authors: | LIN Yan-guang SUN Hong-sheng YUE Chun-sheng |
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| Abstract: | Because of the limitation on memory resources and calculating capacity of the embedded system,this paper designed a static LOD (Level of Detail) terrain based on linear quadiree structure,and organized massive terrain data with layered and blocked methods.On this basis,the author analyzed the mattem of data dynamic scheduling,and achieved the data dynamic scheduling of two dimensional terrain model on the basis of multi-resolution LOD.It could preferably improve performance for real-time visualization in the embedded systems. |
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| Keywords: | embedded systems multi-resolution LOD scheduling data |
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