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1 导线的定义在野外测量中,通常需要从平面位置上对测区内的各点进行观测,为了便于观测,需要布设一系列的控制点,用控制点的平面位置,作为测定测工内所有各点平面位置的依据。《水利水电工程测量规范》中规定,平面控制包括基本平面控制、图根控制和测站点。图根控制点和测站点是在基本平面控制的基础上逐级加密而成的。导线,就是把控制点连成一系列连续的折线,在野外丈量每一边的长度和观测相邻两边之间的夹角,有了导线相邻两边的边长和两边之间的夹角,就可以根据导线起始边的已知方位
1 Definition of Conductors In field measurement, it is usually necessary to observe each point in the survey area from a planar location. To facilitate observation, a series of control points need to be laid out, and the plane position of the control point The basis of the location of each point. “Water Conservancy and hydropower engineering measurement specification” provides that the plane control, including basic plane control, map root control and measuring points. Tugan control points and test points are based on the basic level of control gradually encrypted. Wire, is the control point connected into a series of continuous polyline, measuring the length of each side in the field and observe the angle between two adjacent sides, with the adjacent sides of the wire length and the angle between the two sides, you can According to the known orientation of the leading edge of the wire