To determine the horizontal and vertical (3D) coordinates of an inaccessible point using measurement by a laser rangefinder from the point with measured coordinates.
This mode is only available for GNSS survey configurations if the External Laser check box is selected in the Peripherals for the Rover Receiver dialog of the GNSS survey configuration and supported laser rangefinder model is configured.
To enter this offset mode, click in the top left corner of the Topo Survey (GNSS) dialog, click Measure to expand the sub-menu and select Offset Laser. Detect and select configured laser rangefinder in the open Select Device (Bluetooth connection) dialog.
Note: To bypass the Bluetooth device discovery in the Select Device (Bluetooth connection) dialog next time and let MAGNET Field instantly initiate the connection to the last connected laser rangefinder, click in the top left corner of the Topo Survey (GNSS) dialog, click Measure to expand the sub-menu and select Connect to the last laser. Activated feature is marked with
.
After the connection to the laser rangefinder is established, the Laser Measure dialog opens.
Offset Laser mode requires coordinates of single point defining the occupation point for the laser rangefinder.
Note: If TruPulse 360 model and TruPulse with Compass type is configured as an external laser, the Laser BS Measure dialog opens automatically on entering the Offset Laser mode. Set up the occupation point and backsight direction in that dialog and skip the occupation point and offset direction setup in the current dialog. In this case, the horizontal offset direction will be calculated from the horizontal angle measurement by the laser rangefinder. Click the BS Setup button to manually open the Laser BS Measure dialog and change the initial backsight settings.
Note: Ensure, the laser rangefinder is set up to measure horizontal distance and vertical angle (plus horizontal angle for the device with built-in compass and specified backsight).
After saving the point, you can measure another laser offset or click to return to the Topo Survey (GNSS) dialog.