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| 基于label的空间叠置方法及在嵌入式GIS中的应用 | |
| 引用本文： | 邰滢滢,牛斌,郑子扬,邰利. 基于label的空间叠置方法及在嵌入式GIS中的应用[J]. 计算机应用, 2008, 28(8): 2150-2152 |
| 作者姓名： | 邰滢滢 牛斌 郑子扬 邰利 |
| 作者单位： | 1. 辽宁大学,信息学院,沈阳,110036 2. 东南大学,仪器科学与工程学院,南京,210096 3. 新加坡,特许半导体有限公司,新加坡,新加坡城,738406 |
| 基金项目： | 国土资源部科技资助项目 |
| 摘 要： | 针对嵌入式GIS中地图数据的空间叠置问题，提出一种基于label的空间拓扑算子实现方法，主要包括构建拓扑图，计算弧段的label，根据规则选取弧段，构建新的结果几何体。实验结果证明了该方法不仅对于同维度几何体、而且对于不同维度几何体的空间叠置都适用，将该算法嵌入野外调查GIS系统，能够现场完成变更，在工程实践中具有一定的普遍有效性。 |
| 关 键 词： | 标记 空间叠置 拓扑图 |
| 收稿时间： | 2008-03-19 |
New algorithm on spatial overlaying based on label and its application in embedded GIS |
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| TAI Ying-ying,NIU Bin,ZHENG Zi-yang,TAI Li. New algorithm on spatial overlaying based on label and its application in embedded GIS[J]. Journal of Computer Applications, 2008, 28(8): 2150-2152 | |
| Authors: | TAI Ying-ying NIU Bin ZHENG Zi-yang TAI Li |
| Affiliation: | TAI Ying-ying1,NIU Bin1,ZHENG Zi-yang2,TAI Li(1.School of Information Science , Technology,Liaoning University,Shenyang Liaoning 110036,China,2.School of Instrument Science , Engineering,Southeast University,Nanjing Jiangsu 210096,3.Chartered Semiconductor Manufacturing Ltd,Singapore 738406,Singapore) |
| Abstract: | To solve the problem of spatial overlaying of Geographic Information System (GIS) data in embedded system, a new spatial operator algorithm based on label was presented. According to the approach, the topological graph was constructed, the labels of the edges were computed, the edges were selected by the rules, and the new geometry was built. The results show the algorithm is applicable not only for the geometries of the same dimension but also for that of different dimension. And it is practicable for embedded GIS system of land survey, and can accomplish alternation at field survey spot and has universal validity. |
| Keywords: | label spatial overlaying topological graph |
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