多坐标系统下同一图斑面积测算差异性分析  

Analysis of the Difference in Measuring and Calculating the Same Polygon under Multi-coordinate System

作　　者：胡耀锋[1] 欧海平[1] 胡欣然 欧佳斌 喻永平[1] HU Yaofeng;OU Haiping;HU Xinran;OU Jiabin;YU Yongping(Guangzhou Urban Planning and Design Survey Research Institute,Guangzhou 510060,China)

机构地区：[1]广州市城市规划勘测设计研究院,广东广州510060

出　　处：《测绘与空间地理信息》2020年第8期147-150,共4页Geomatics & Spatial Information Technology

摘　　要：分析了多坐标系统下引起同一图斑面积大小差异的原因,推导出了面积较差的一般性公式,通过广州市多坐标实际案例测算,总结出了面积较差的空间分布特征及极值规律。This paper analyses the causes of area difference in the same polygon under the multi-coordinate system,deduces the general formula based on causes,and sums up the spatial distribution characteristics and extremum law of area difference through the calculation on actual case under multi-coordinate system in Guangzhou.

关 键 词：坐标转换 高斯投影 面积变形 中央子午线 

分 类 号：P226.3[天文地球—大地测量学与测量工程]