Column Offset

To determine the horizontal coordinates of an inaccessible inner center of pipe / tree / pillar using distance and angle measurement to the visible center and horizontal angle measurements to left and right sides of pipe / tree / pillar.

To enter this offset mode, click in the top left corner of the Topo Survey (Optical) dialog, click Measure to expand the sub-menu and select Column Offset.

Column Offset mode requires measurement of three locations: HA measurements to the left and right sides of the pipe / tree / pillar so that the lines of sight are tangent and HA + SD measurement to the middle of the pipe / tree / pillar. VA measurements are not taken into account in this mode.

After taking three measurements, MAGNET Field calculates horizontal coordinates and stores the inaccessible point to the job. The vertical coordinate of the inaccessible point is not considered. The stored point has the icon in point listings of the current job.