基于FME实现国土二调图斑地类净面积高效自动化计算技术研究  

Research on the Technology to Realize the Efficient Automatic Calculation of the Net Area of the Land Type of Patches in the Second National Land Survey Based on FME

作　　者：韦前 WEI Qian(Institute of Natural Resources Survey and Planning of Qiannan Prefecture,Qiannan Autonomous Prefecture,Guizhou Province,558000 China)

机构地区：[1]黔南州自然资源调查规划院,贵州黔南558000

出　　处：《科技资讯》2023年第18期86-89,共4页Science & Technology Information

摘　　要：因为二调技术规程的特殊性,准确、高效地计算地类净面积成为一个难点。该文根据地类图斑、线状地物和零星地物要素类继承关系结合空间关系来确定三者之间严谨的关系,解决了其他计算方法单独利用空间关系受软件数据容差和数据拓扑错误的影响。利用FME软件高效读取数据功能和列表功能,减少冗余数据,但又能把必要信息完整带入下一个阶段,最终形成了一套基于FME的国土二调地类净面积计算自动化程序。相对于其他计算方法,此程序数据处理得更加严谨、准确、高效。Due to the specificity of the technical guidelines for the Second National Land Survey,accurately and efficiently calculating the net area of land types has become a challenge.According to the inheritance relationship of the feature classes of land types of patches,linear features and sporadic features,combined with spacial relationship,this article determines a rigorous relationship among the three,and solves the problems that other calculation methods are affected by software data tolerance and topological errors when using spatial relationships alone.The efficient data reading function and list function of FME software are used to reduce redundant data while completely carrying necessary information over to the next stage,and finally a set of automated program for calculating the net area of land types of patches in the Second National Land Survey based on FME is formed.Compared with other calculation methods,this program ensures more rigorous,accurate and efficient data processing.

关 键 词：FME 图斑地类净面积 线状地物 零星地物 国土二调 

分 类 号：P208[天文地球—地图制图学与地理信息工程]