【作者】 秦岭霞；

【导师】 李成名； 张红日；

【作者基本信息】 山东科技大学 ， 地图制图与地理信息工程， 2005， 硕士

【摘要】 地理空间信息可以分为基础地理空间信息和社会专题信息。由于基础地理空间信息和各种社会专题信息分别依附于不同的划分单元网格上,没有一个统一的空间基底平台,所以要实现各种信息的集成融合存在着一定的困难。而现在信息化的社会又强烈需要消除这种“信息孤岛”,只有把地理、资源、生态环境、人口、经济、社会等专题信息集成起来才能为决策者和管理者提供全面的信息,才能提供正确的服务支持。另外,在目前的空间数据组织方式下,在当前的数据表达以突出实体特征模式下,实现大范围的地理空间分析统计操作的自动化水平和速度还有待于提高,需要一种新的数据表达方式来改变这种情况。 基于以上原因,本文提出了地理空间信息网格的思想,希望通过构建的网格可以作为空间基底平台实现各种信息的集成以及为空间分析操作提供新的思路。本文的主要内容包括: 1.分析了在目前数据组织方式下,以数据表达方式为突出实体特征的模式下进行空间分析存在的局限; 2.提出了地理空间信息网格的概念,并归纳总结了各种地理空间网格划分的方法; 3.介绍了当前各种划分网格单元生成的原则和方法,讲述了空间基底网格的生成、编码和网格的应用,本文重点信息的集成和网格的应用做了深入地探讨; 最后,引入数学形态的膨胀和腐蚀概念,提出了基于空间基底网格的点域、面域与线域的信息提取和分析方法。结合试验区域进行了线域和点域两种空间分析,使得提出地理空间信息网格的方法的有效性和可行性得到了验证。更多还原

【Abstract】 Geospatial information can be divided into basic geospatial information and social theme information. These different kinds of information lie on different grids having no unitive fundus flatform, so we have difficult to integrate all kinds of information. At the same time, the development of social need to eliminate insular information, and need to integrate all the information of geography, resource, entironment, population, economy, society and so on, so it can offer general information and serving for decision-makers and governors. Otherwise, because of the localization of the organizing mode of spatial data and the mode of data expression, the level of automatization and speed is limited when we do geospatial analysis, so we need a new mode of data express which can solve the difficulty.In order to solve above problems, this paper put forwards the thought of geospatial information gird, the grids can be regarded as spatial fundus platform to integrate all kinds of information, and it can offer a new way to do spatial analysis. The contents of the paper as follows:1 .The paper analyzes the localization of the organizing mode of geospatial data, and the difficulty to do spatial analysis under the expression mode of data which extrudes characters of entities;2.The paper puts forwards the conception of geospatial information grid, and summarizes some kinds of methods of geospatial division by grids;3.The paper introduces the principle and building methods of some kinds of grid, and discusses the method of building, coding and application of grid as spatial fundus, this paper emphasizes the study of the integration of information and the application of grid;Finally, the paper introduces the conception of dilation and erosion, and puts forward the information extraction and spatial analysis method of point, region and line based on spatial fundus grid, and do line and point spatial analysis in experiment area which validates the validity and feasibility of geospatial information grid.更多还原