Resection |
This method of plane table surveying is employed to locate and plot the position of the plane table during surveying. This also results in the orientation of the plane table. The basic principle of resection is opposite to that of the method of intersection. In this method, the position of the plane table is determined by drawing resectors from already plotted points. There are different methods for locating plane table by method of resection and are primarily based on the type of orientation which precedes resection. Of these, resection after orientation by three points is widely prevalent and has been considered in lesson 35. |