When total station instrument coordinates setting out, do not input angle instrument, high-energy lofting?
If you want to get elevation, without measuring the height of the instrument, you can pass the elevation of the back view point, if the elevation of the back view is known, and you need to take the back prism height.
Generally, there are two methods for layout: polar setting out and rectangular coordinate setting out. With the rectangular coordinate setting out, no rear view azimuth can be obtained. As long as the coordinate of the station and the coordinate of the back view are input, the instrument can automatically obtain the back azimuth; the same can be obtained with the forward azimuth angle. If you enter the Total Station Road lofting program, you need to enter the known data into the instrument.
If the total station has preserved the design coordinate point, and only the plane position of non elevation layout requirements, site orientation is completed, can enter the lofting procedures, direct input lofting period, the input angle and the instrument can work without.
