Resection after Solving Three Point Problem
Locating the plotted position of a station point by using observations to 3 well defined points whose plotted positions are known, is called solving three point problem.
Assume A, B, C be three well defined objects on the field whose plotted positions a, b and c are known. The problem, now, is to locate plotted position of the station point P. Any t methods can be used from the following.
- Mechanical (Tracing paper) method,
- Graphical method, or
- Trial and error method (Lehman's method).