| 基于QTM的WGS-84椭球面层次剖分及其特点分析 |
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| 引用本文： | 白建军,孙文彬,赵学胜.基于QTM的WGS-84椭球面层次剖分及其特点分析[J].测绘学报,2011,40(2):243-248. |
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| 作者姓名： | 白建军 孙文彬 赵学胜 |
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| 作者单位： | 1. 陕西师范大学;2. 中国矿业大学（北京）; |
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| 基金项目： | 国家自然科学基金(40971213) |
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| 摘 要： | 在分析现有球面剖分的基础上,发展出一种基于四元三角格网(QTM)的WGS-84椭球面层次剖分方法;并计算不同层次剖分格网的面积、边长变化情况,分析格网的特点.研究表明该格网近似规则,且具有层次嵌套性等特征,为其实用化和误差控制提供了依据.
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| 关 键 词： | QTM WGS-84椭球面 层次剖分 全球离散格网系统 |
| 收稿时间： | 2010-05-24 |
| 修稿时间： | 2010-09-10 |
Character Analysis and Hierarchical Partition of WGS-84 Ellipsoidal Facet Based on QTM |
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| BAI Jianjun,SUN Wenbin,ZHAO Xuesheng.Character Analysis and Hierarchical Partition of WGS-84 Ellipsoidal Facet Based on QTM[J].Acta Geodaetica et Cartographica Sinica,2011,40(2):243-248. |
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| Authors: | BAI Jianjun SUN Wenbin ZHAO Xuesheng |
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| Institution: | 1. ;2. China University of Mining & Techology(Beijing); |
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| Abstract: | In order to building multi-resolution global data model,the existent partition methods of spherical surface were analysed,and a hierarchical tessellation meshes of WGS-84 ellipsoidal surface based on quaternary triangular meshes(QTM) is put forward.The area and side length of the multi-resolution meshes on different levels are calculated,and the character of the cells is also analyzed.The research indicates that the cells are approximately regular,hierarchical nesting,and so on,which can be the basis of its... |
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| Keywords: | quaternary triangular meshes(QTM) WGS-84 ellipsoidal facet hierarchical partition discrete global grid systems |
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