| 一体化空间数据结构及其索引机制研究 |
| |
| 引用本文： | 谈国新.一体化空间数据结构及其索引机制研究[J].测绘学报,1998,27(4):293-299. |
| |
| 作者姓名： | 谈国新 |
| |
| 作者单位： | 武汉城市建设学院建管系,武汉,430074 |
| |
| 摘 要： | 本文提出了一种新的栅矢一体化空间数据结构，该结构采用三级划分策略及几何目标元子充填表达技术，使空间数据栅格化的同时，也能满足精度要求。同时引入弧段栅格比特阵和面要素自适应空间索引结构，有效地提高了空间检索效率。试验证明，上述理论及方法是可行的。
|
| 关 键 词： | 矢量 栅格 空间数据结构 空间索引机制 测绘 |
STUDY OF INTEGRATED SPATIAL DATA STRUCTURE AND SPATIAL INDEX MECHANISM |
| |
| Tan Guoxin.STUDY OF INTEGRATED SPATIAL DATA STRUCTURE AND SPATIAL INDEX MECHANISM[J].Acta Geodaetica et Cartographica Sinica,1998,27(4):293-299. |
| |
| Authors: | Tan Guoxin |
| |
| Abstract: | In this paper, a new integrated spatial data structure is proposed. The strategy that dividing tile into three grades and the representation technique of spatial occupancy enumeration are adopted, that make spatial data raster, at the same time to meet the requirement of data precision. A structure which have vector characteristics to express topology is proposed. In order to have raster function to carry out overlay analysis quickly and improve spatial query speed, raster bit matrix for arcs which are stored in arc index file and adaptive spatial index structure for polygons are introduced. Some experiments have shown feasibility of the method proposed in this paper. |
| |
| Keywords: | Vector Raster Integrated spatial data structure Spatial index mechanism |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
