Additional Nexus reference PDFs:

Nexus legacy documentation:

This information is for Vicon Nexus 2.6. For up-to-date help, see the latest Nexus documentation.

Nexus PDFs

The following additional enhancements were added to Nexus 2.6:

Video transfer counter

On the Data Management tab, in the File Transfer interface, a new File Transfer counter enables you to check easily on the progress of the transfer of large numbers of video files.

The counter displays both the number of the current video and the total number of videos that are being transferred.

Camera bump indicator

In the System Resources tree, bumped cameras are now indicated by a yellow warning icon. To see a tooltip containing information about the issue with the camera, hover the mouse pointer over the icon.

Specify the region of interest

Nexus has always enabled you to select a range of frames (Region-of-Interest) by moving the start- and end-of-range indicators (the blue triangles) to the required frames on the time bar. A new method now enables you to enter the required frame numbers into a dialog box. 

  1. On the Nexus time bar, right-click and then click Set Region-of-Interest.
  2. In the Set Region of Interest dialog box, specify the Start Frame and End Frame.
    On the time bar, the regions of the trial outside the specified region of interest are dimmed. When you play or process the trial, only the selected region is affected.

Force vector threshold visualization

The Force Threshold of a force plate specifies the noise floor value in Newtons. Forces below this value are assumed to be noise and are clamped to zero.

A new Options setting for force plates enables you to specify a different value for the Force Threshold depending on whether you are recording data or displaying a trial.

  • The value for the Force Threshold that is set in the System Resources pane for the force plate affects the values that are written into a recorded trial. For example, if the Force Threshold is set to 25 N, all values below this are considered noise and values of zero are recorded.
  • The value for the Force Threshold that is set in the Options dialog box ensures that values below this threshold are not visualized as force vectors on the plate. This prevents very small values, which are simply noise, from creating a distracting ‘flickering’ force vector on the plate. If you are distracted by flickering while viewing a trial, raise this value to remove the flickering. This does not affect the value for Force Threshold that is written into a recorded trial.

To specify the Force Threshold that is recorded for a force plate:

  1. Ensure the system is in Live mode.
  2. In the System Resources tree, select the force plate.
  3. In the Properties pane, ensure the Advanced properties are displayed.
  4. In the General section, change Force Threshold (N) from the default (25 N) to the required value.
    Values below this magnitude are ignored and are recorded as zero.

To specify a value for visualizing the force vector:

  1. Press F7 to open the Options dialog box.
  2. On the left click ForcePlates.
  3. In the Properties pane on the right, in the Force Vector section, change the Force Threshold (N) to the required value (the default is 25 N).
    Regardless of the setting of the Force Threshold in the System Resources pane, the force  vector that is displayed in the view pane is below the threshold that is set in the Options dialog box. For example, if you set the value to 10 in the System Resources pane, but left it at 25 in in the Options dialog box, a value of 15 would be prevented from causing flickering, but would be recorded in saved trials.