摘要
附合导线是工程测量中使用频率较高的一种导线形式,为了提高附合导线计算的效率,提出附合导线角度闭合差计算的多边形辅助线法。传统做法在角度闭合差计算中需逐点推算坐标方位角,区分各角为左角还是右角、逐边分析是否加减180°,当导线点增多时内业计算烦琐。多边形辅助线法则不需以上步骤,在导线点增多时不会增加内业计算量。
Annexed traverse is widely used in engineering surveying. The polygonal auxiliary line method for angle closure error is presented to improve the computational efficiency of the annexed traverse. In traditional angle closure calculation of annexed traverse,the coordinate azimuth is needed to calculate point-by-point,each traverse angle is necessary to be distinguished as the left angle or right,and every traverse line has to be analyzed one by one to determine whether to add or subtract the value 180 °. Therefore the more traverse points,the more calculations. However,the above procedures are not to be needed by the polygonal auxiliary line method for angle closure calculation of annexed traverse,so the calculation will not be increased when the number of traverse point grows.
作者
李啸天
覃超
王旭华
Li Xiaotian;Qin Chao;Wang Xuhua(College of Civil Engineering and Architectural Dalian University,Dalian 116622,Liaoning)
出处
《城市勘测》
2019年第6期145-148,共4页
Urban Geotechnical Investigation & Surveying
关键词
附合导线
工程测量
角度闭合差
多边形辅助线法
annexed traverse
engineering survey
angle closure error
polygonal auxiliary line method