摘要
根据工程测量中长度投影变形超过2.5cm/krn时应建立地方工程控制网的要求,通过选择适当的坐标系统,有效地消除或减弱投影变形,以满足工程的实际需要。
Based on the requirement that when length distortion of projection excesses 2.5 cm/km, this paper introduces the method ofehoosing the suitable coordinate system and eficiently decreasing the deformed projection,which fits for the practical need of engineering.
出处
《科技信息》
2009年第27期I0274-I0275,共2页
Science & Technology Information
关键词
工程坐标系
高斯投影
抵偿高程面
Engineering Coordinate System
Gauss Projection
Projection Datum Plane with Compensation Effect
