地理数据空间校正控制点分布探讨

Discussion on the Distribution of Control Points for Spatial Correction of Geographical Data

ArcGIS软件是集空间数据显示、编辑、分析等多功能于一体的地理信息系统,多用于数据建库、格式转换、数据分析等。本文介绍了ArcGIS地理信息系统空间校正工具的应用,以控制点分布为重点,对矢量数据进行坐标变换和变形校正实验,测试控制点间的距离、分布情况、校正方法、对校正后数据精度的影响,从而获得Arc-GIS的空间校正工具对矢量数据处理的最佳状态,为空间校正的应用与控制点的分布提供参考。

ArcGIS software is a geographic information system integrating spatial data display,editing,analysis and other functions.It is mainly used for data database construction,format conversion,data analysis and so on.This paper introduces the application of spatial correction tool of ArcGIS geographic information system.Taking the distribution of control points as the key points,coordinate transformation and deformation correction experiment of vector data are carried out to test the distance between control points,the distribution of control points and the effect of correction method on the accuracy of corrected data.So as to obtain the best state of vector data processing by ArcGIS spatial correction tools,and provide reference for the application of spatial correction and the distribution of control points.