Lofting is an application branch of

Lofting is an application branch of measurement, which requires that the designed points be calibrated in the field by certain instruments. In the past, there are many conventional lofting methods, such as the intersection setting out of theodolite, the setting out of the corner of the total station, etc. generally, when setting out a design point, it is often necessary to move the target back and forth, and it needs 2-3 people to operate. In the setting out process, it is also required that the interpoint visibility is good, and the efficiency in production and application is not very high, Sometimes, in case of difficulties encountered in lofting, many methods are needed to set out. If RTK technology is used to loft, only the designed point coordinate should be input into the electronic manual book and the GPS receiver is carried. It will remind you to go to the position where you want to set out. It is quick and convenient. Because GPS is directly lofted out by coordinate, and the precision is very high and even