Coordinated Transformation From Xian Coordinate System
1980 to National Geodetic Coordinate System 2000
ZHONG Ye-xun1,2 TONG Xin-hua2 WANG Long-bo1
（1 Guangxi Regional Bureau of Surveying and Mapping，Nanning，Guangxi，530023；2 School of Resource ＆
Environment Science，Guangxi Teachers′College，Nanning，Guangxi, 530001）.
Abstract: In this paper the authors expound build element of Gauss-Kruger projection and inquire into formula of coordinate. For xian coordinate system 1980 and national geodetic coordinate system 2000 the authors give computer program which application CASIOfx-4800p counter from plane rectangular coordinate reverse computer geographic coordinate. Application this program achieved coordinate transformation from xian coordinate system 1980 to national geodetic coordinate system 2000. According to the computer result and diagram accuracy on 1：25000 scale topographic map，because of coordinated differ of same point inter diagram accuracy 0.2mm on 1:25000~1:500000 scale topographic maps，so only need change name of coordinate system at map correcting.
Key words:xian coordinate system1980;national geodetic coordinate system 2000;gauss-krüger projection；geographic coordinate；plane rectangular coordinate；coordinate tansformation
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2008年9月30日
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