| 基于STR算法的三维地质模型R树索引构建与分析* |
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| 引用本文： | 王占刚,左建平.基于STR算法的三维地质模型R树索引构建与分析*[J].计算机应用研究,2010,27(10):3783-3785. |
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| 作者姓名： | 王占刚 左建平 |
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| 作者单位： | 中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京,100083 |
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| 基金项目： | 国家“973”计划资助项目(2010CB226801, 2006CB202209, 2009CB72460); 中国博士后基金资助项目(20090450466)；煤炭资源与安全开采国家重点实验室开发课题项目（2008-02） |
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| 摘 要： | 针对三维结构模型中地质体层状分布、厚度较小、形状极不规则以及空间分布多样等特点，采用STR算法构建多体R树索引，分析了构建索引预处理过程和处理断层、全区域覆盖等类型地质体的方法。数据测试表明，基于STR算法的多体R树索引整体性能优于传统R树，并且多体索引构建预处理中X、Y、Z的选取顺序对不同类型地质结构模型的查询性能也有不同影响。
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| 关 键 词： | 递归网格排序 地质模型 索引 三维 |
Analysis and construction of R-tree index for 3D geological model based on STR |
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| WANG Zhan-gang,ZUO Jian-ping.Analysis and construction of R-tree index for 3D geological model based on STR[J].Application Research of Computers,2010,27(10):3783-3785. |
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| Authors: | WANG Zhan-gang ZUO Jian-ping |
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| Affiliation: | (State Key Laboratory of Coal Resources & Mine Safety, China University of Mining & Technology, Beijing 100083, China) |
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| Abstract: | Considering the layered distribution and the thin irregular geometric characteristics of geological bodies, proposed multi-body spatial index based on the STR algorithm. Discussed in detail the preprocessing of constructing index and treatment for fault-type geological objects and whole-region geological objects. Experiments show that the overall performance of multi-body R-tree index based on STR algorithm is better than the traditional R-tree and the constructing order in X, Y, Z direction affects the query performance for different types of geological structure model. |
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