地类图斑与多源在线地图坐标粗匹配研究  

Research on Coordinate Rough Matching of Land Polygon and Multi-source Online Maps

作　　者：黄亮平 李德平[1,2] 周亮 刘师师[1] HUANG Liangping

机构地区：[1]湖南师范大学资源与环境科学学院,湖南长沙410081 [2]湖南师范大学地理空间大数据挖掘与应用湖南省重点实验室,湖南长沙410081

出　　处：《地理空间信息》2021年第5期10-14,26,I0005,共7页Geospatial Information

基　　金：湖南省教育厅科学研究重点资助项目(18A014)。

摘　　要：以天地图、百度地图、Google Earth为例,为了解决地类图斑与3种在线地图集成过程中出现的坐标不匹配问题,从规避地理信息和参数保密性的角度,利用高斯反算实现了地类图斑与天地图的坐标粗匹配;重点研究了5种格网大小和5种坐标匹配方法对地类图斑与百度地图坐标匹配精度的影响,得出最适合的格网大小和方法;并通过实例对地类图斑与3种在线地图的坐标粗匹配效果进行了验证。结果表明,当精度要求为m级时,地类图斑与Google Earth坐标基本相容。In order to solve the problems of coordinate mismatch in the integration process of land polygon and MapWorld,Baidu Map and Google Earth,considering from the perspective of avoiding geographical information and parameter confidentiality,we used Gauss inverse calculation to achieve the coordinate rough matching of land polygon and MapWorld,mainly studied the influence of five grid sizes and five coordinate matching methods on the coordinate matching accuracy of land polygon and Baidu Map,obtained the most suitable grid size and method,and verified coordinate rough matching effect of land polygon and three online maps by an example.The result shows that the land polygon is basically compatible with Google Earth coordinate when the accuracy requirement is meter level.

关 键 词：地类图斑 天地图 百度地图 Google Earth 坐标粗匹配 

分 类 号：P226.3[天文地球—大地测量学与测量工程]