直角坐标测绘法测图及点位精度估算

Mapping and Error Estimation of Detail Point Using Cartesian Coordinate Mapping

传统的大比例尺地形图测绘都是以测站点展绘碎部点 ,由于展绘测站点存在误差 ,故直接影响到碎部点精度。为此 ,提出了直角坐标测法。该法根据仪器安置在测站上测算得到的碎部点坐标归算到以坐标方格网交点为坐标原点的坐标 ,应用有刻度的直角板展绘碎部点。通过精度分析 。

Drafting error of detail points on a station affects directly its precision in conditional large-scale topographic survey since the means came along so that cartesian coordinate mapping is put forvoard. Through analyzed, the mapping could highten detail points precision. This paper points out the drafting of detail points to has higher precision using graduate set-square after transforming the coordinate of detail point to coordinate by square net as a origin.