Horizontal Angle Offset

To determine the horizontal (2D) coordinates of an inaccessible inner center of pipe / tree / pillar using distance and angle measurements.

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 Horizontal Angle Offset.

Horizontal Angle Offset mode requires measurement of two locations: HA measurement to the visible center of the pipe / tree / pillar and HA + SD measurement to the side of the pipe / tree / pillar so that the line station - prism is tangent. VA measurements are not taken into account in this mode.


After taking two 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.