This is my 21st video of Leica Total Station TS15 & in this video, I explain how to calculate the offset of a straight line using Leica Total Station TS15(The position of an offset point is calculated using an entered distance along & Perpendicular offset from a defined line) For this purpose, I use one option inside Leica TS15A which called COGO inside cogo 2nd option Calculate Line offset a point, Here inside Calculate Line offset a point have to two options for calculating offset one if given points coordinate 2nd is if one point coordinate and 2nd point Bearing + distance