What are Graphical methods to Adjust Closing Error?
In case where the closing error needs to be adjusted, a graphical adjustment is made. There are two methods, the proportionate method and the axis correction method. Proportionate method- This method of adjustment, known to be proportionate method, is based on Bowditch rule and is used when traversing with compass. Axis correction method- This method of graphical adjustment of closing error is preferred when angles are measured very precisely, e.g., in theodolite traversing. In this method, the lines are kept parallel to originally plotted traverse lines, and in the process there lengths get altered.
How to Calculate Correction to First Bearing for given Closing Error?
Correction to First Bearing for given Closing Error calculator uses Correction to First Bearing = (Closing Error/Number of Sides)*(pi/180) to calculate the Correction to First Bearing, The Correction to First Bearing for given Closing Error is defined as the correction against the closing error of a bearing. Here the closing error is refers to the error happened on a bearing hence it is in degree. Correction to First Bearing is denoted by cb symbol.
How to calculate Correction to First Bearing for given Closing Error using this online calculator? To use this online calculator for Correction to First Bearing for given Closing Error, enter Closing Error (e) & Number of Sides (NSides) and hit the calculate button. Here is how the Correction to First Bearing for given Closing Error calculation can be explained with given input values -> 1432.394 = (50/2)*(pi/180).