R-tree index structure for multi-scale representation of spatial data
文献类型：EI期刊论文
| 作者 | Deng Hong-Yan ; Wu Fang ; Zhai Ren-Jian ; Zhao Qian |
| 发表日期 | 2009 |
| 关键词 | Information systems Mapping Maps Optical flows |
| 英文摘要 | Aiming at multi-scale representation of spatial data not supported by R-tree, a transmutation index structure of R-tree used for multi-scale representation of spatial data is proposed: (1) Spatial objects may appear at non-leaf nodes; (2) Depth of the tree is made use for reflecting change of spatial resolutions, and resolution dimensions is supported; (3) Structure of the tree's branches supports algorithms of automatic cartography generalization. Query of spatial datas among multiple scales of based on the R-tree's transmutation index structure is analyzed, and constraint conditions, insert algorithms and divide algorithms among creations of the index structure are emphasized. For the same data source, compared with multi-scale index based on quadtree for spatial data, experiments prove that the transmutation structure can search spatial data organized by multi-resolution and memorize generalization results with high efficiency. |
| 出处 | Jisuanji Xuebao/Chinese Journal of Computers
 |
| 卷 | 32期:1页:177-184 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24968]  |
| 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 | Deng Hong-Yan,Wu Fang,Zhai Ren-Jian,et al. R-tree index structure for multi-scale representation of spatial data. 2009. |
入库方式： OAI收割
来源：地理科学与资源研究所
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