Tutorial: Metrics Processing

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The objective of this tutorial is to provide an overview of metrics processing in Visual3D.

Most metric processing functionality is available through the Command Pipeline, so it is advisable to start with that tutorial.

Metrics are discrete quantitative values of signals such as maximum value, median value, value at a specified frame. In other words, metrics do not have a time-base like the other signals.

Metrics also refer to combinations of other metric values. For example, the metric describing the range of motion of a joint angle during a movement would be the difference between the metric defining the maximum value of the joint angle and the minimum value of the joint angle. The metric describing the time for a step cycle would be the time from Right Heel Strike to Right Heel Strike.


  1. Open the file Tutorial3.cmo
  2. Click on the Signal and Event Processing Tab to visualize the animation of the model based on the movement data and the model that was applied to it. If the animation doesn’t appear in the 3D Animation viewer, check the active file combo box on the tool bar. It should read ’r;Walking Trial 1.c3d’ rather than ALL-FILES

Create the mean for the FP1 signal between the RON and ROFF Events

  1. Expand the FORCE folder in the Data Tree.
  2. Select the FP1 signal with the Right Mouse Button
  3. Select the Generate Mean in the Generate Metric Selection
  4. Fill in the edit boxes as shown below.
  5. The resulting metric value contains the mean for the FP1 signal between the RON and ROFF Events
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