3D data overlay

The 3D data can be overlayed on the 2D image area to show the 3D view from the camera viewpoint. This can for example be used for showing the force arrow in the video of someone stepping on a force plate or to check which 2D markers that are used for the 3D calculation.

Follow these steps to activate the 3D data overlay:

1. Calibrate the camera system, including the Qualisys cameras that are used in video mode.

2. Open a 2D view window in RT/preview or a file.

3. Right-click on the camera where you want to turn on the overlay and select Show 3D data overlay.

   The 3D data can also be overlayed on the 2D data, for example to check how much of the measurement volume that is seen by the camera.

4. The 3D elements displayed in the overlay and the opacity can be changed on the 2D view settings page in the Project options dialog, see chapter 2D view settings.

   The marker and video data display in the 2D view can be switched between linearized and unlinearized on the 2D view settings page. To match the 2D data with the 3D data the data must be linearized.