论文部分内容阅读
空间分析是对地理信息的定量研究。它是针对不同形态的空间数据提取出有价值的信息。空间分析是GIS的核心,常见的空间分析算法主要有缓冲区分析、空间插值分析、可视域分析、土方计算、坡度坡向分析、最短路径分析、查询分析等。本文的主要重点放在常见的最短路径算法、距离查询和地表面积算法。最后展示出系统开发的效果图。
Spatial analysis is a quantitative study of geographic information. It is based on different forms of spatial data extracted valuable information. Spatial analysis is the core of GIS. The common spatial analysis algorithms include buffer analysis, spatial interpolation analysis, visual field analysis, earthwork calculation, slope analysis, shortest path analysis and query analysis. The main focus of this paper is on common shortest path algorithms, distance queries, and surface area algorithms. Finally demonstrated the system development effect map.