Resection in Hybrid Positioning™ Mode

The Hybrid Positioning™ mode allows you to simultaneously record the point coordinates from GNSS rover receiver and Total Station to the opened job. This option can be activated only for Robotic Total Station with reflector. The GNSS receiver and Robotic Total Station are connected to the job simultaneously. Using Hybrid Positioning™ mode you can obtain an occupation point coordinates in Grid or WGS-84 coordinate systems.

Before performing resection you need to activate Hybrid Positioning™, select a desired prism with enabled and specified Hybrid Positioning™ antenna offset and open the Resection dialog.

Note: Review the detailed information on how to set the antenna height in a single equipment setup ready for both, Hybrid Positioning™ and standard GNSS surveys.


There are several scenarios to perform the resection procedure:

Scenario A:

The desired Grid projection is defined in the job. Grid to Ground transformation is not selected. The GNSS and TS measurements are performed for each unknown point. The coordinates of the Occupation Point are calculated in the current Grid coordinate system.

  1. Select the desired Grid projection in the Coordinate System dialog.
  2. In the Define instrument setup group (Resection dialog) you can:
  3. In the Specify control point group you can:
  4. In the Measure GNSS Point For you see the point coordinates in the current Grid are measured by the GNSS receiver. In this group you can:
  5. After measuring second control point (and subsequent points), the Results screen displays measured values of angles and slope distances with estimate of accuracy. In this screen you can:

Scenario B:

The desired Grid projection is defined in the job. Grid to Ground transformation is selected. The relationship between Grid and Ground coordinate systems is known. Coordinates for both coordinate sets are displayed in the current coordinate system. The coordinates of the Occupation Point are calculated in the Grid or Ground coordinate systems.

The routine of the resection procedure is similar to the Scenario A.

  1. Select the desired Grid projection in the Coordinate System dialog.
  2. Check the Use Grid / Ground box, click and select the desired parameter (Parameters) in the Grid / Ground Parameters dialog. Click to save the selected grid to ground parameters.
  3. Perform the steps 2-5 of the Scenario A.

Scenario C:

The Grid projection is not defined in the job. The user has coordinates of the control points (two points at least) in the Ground coordinate system. For each control point TS and GNSS measurements are provided. The software performs the localization between WGS-84 and Ground. The coordinates of the Occupation Point are calculated in the Ground and WGS-84 coordinate systems.

  1. Select <none> in the Projection of the Coordinate System dialog.
  2. In the Define instrument setup group (Resection dialog) you can:
  3. In the Specify control point group you can:
  4. In the Measure GNSS Point For you see the point coordinates in WGS-84 are measured by the GNSS receiver for localization. In this group you can:
  5. After measuring second control point (and subsequent points), the Results screen displays measured values of angles and slope distances with estimate of accuracy. In this screen you can:


Scenario D:

The coordinates of the control points (two points at least) in the Ground coordinate system imported in the job. The desired Grid projection is defined in the job. For each control point TS and GNSS measurements are provided. The software automatically performs the localization between Grid and Ground. The coordinates of the Occupation Point are calculated in the Grid and Ground coordinate systems.

  1. Import the set of points with coordinates in Ground coordinate system to the job. Then select the desired Grid projection.
  2. Perform the steps 2-5 in the Scenario C.
  3. Next measured pair of points in the resection procedure is used in recalculation of the occupation point coordinates.