Calculate the height of an object from a baseline when its projected position to the ground is inaccessible. Case scenario when baseline AB is level and collinear with object.
Known values: Baseline distance AB length, height h1 of the observer, vertical angles α and β.
Solution: Height of object above ground at position A.
First, measure horizontal distance AB and vertical angles α and β from observer point A1 and B1 respectively.
Then calculate vertical distance OC1:
Finally, calculate height of object above ground at station A:
Given the rate and direction of full dip of a pla...
Given the rate and direction of full dip of a plan...