A fast checking algorithm of overlay, repetition and disjoint errors in land spatial data
文献类型：会议论文
| 作者 | Fang L. ; Zhong E. S. ; Yao M. ; Yu Z. Y. |
| 出版日期 | 2009 |
| 会议名称 | Proceedings of SPIE-The International Society for Optical Engineering |
| 关键词 | Land spatial data data checking spatial relation fast algorithm |
| 英文摘要 | While in land spatial data processing or application, spatial relationship of land data features should be carefully checked to guarantee the data quality. For land use data or cadastral data, lots of spatial relation rules need GIS query functions to find the overlay or disjoint feature errors, for example, all the land use patches must conform to combine a non-overlay, non-repetition and continuous area. Currently, there are many types of spatial relationship like equality, contain, intersect, disjoint, overlay, contact etc, which can be utilized in GIS systems. Though each of them can find different data errors, they require in turn examining every pair of features separately and will be very time-consuming, especially when land use data contains large number of features or lots of the feature shapes are complicated, so for land spatial data management system, a fast algorithm is needed to systematically check variant data errors in a short time. In this paper, a new land data checking algorithm of overlay, repetition and disjoint errors is proposed. The main concept and detail steps of this algorithm are introduced and illustrated. Then an experiment on comparing this algorithm and a common algorithm which uses spatial query functions of GIS software in checking overlap, repetition, and disjoint errors for land use data is carried out. Results show that this algorithm has high efficiency than the other one. |
| 收录类别 | CPCI |
| 会议录出版者 | Spie-Int Soc Optical Engineering |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| ISBN号 | 978-0-8194-7388-2 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25087]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Fang L.,Zhong E. S.,Yao M.,et al. A fast checking algorithm of overlay, repetition and disjoint errors in land spatial data[C]. 见:Proceedings of SPIE-The International Society for Optical Engineering. |
入库方式： OAI收割
来源：地理科学与资源研究所
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