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Comment: Updated trajectories section

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  • Use the motion slider in the toolbar to go through different frames
  • Synchronize the motions from different motion files. These other motions could be either motion capture files or results from OpenSim tools. For example, marker trajectories and ground reaction forces can be synchronized and superimposed on the result of a forward simulation.

Visualizing

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Experimental Markers in OpenSim

Marker trajectories are expected to be contained within a .trc file. The ExperimentalData model will contain the loaded motion file (e.g., subject01_walk1.trc) with marker data. The Markers node will list each individual marker found in the file (figure below). Nodes corresponding to individual markers have the following options, accessible by right-clicking the mouse:

  • Show: Enabled only if a marker is hidden
  • Show Only: Hides all other markers except for those selected
  • Toggle Trail DisplayHide: Toggles Hides the display of a line representation of the trajectory of selected marker(s)
  • Double clicking a Marker node in the navigator, highlights the corresponding display with a selection box.
  •  Selecting a marker in the Visualizer Window highlights the corresponding node in the Navigator tree.


 
Navigator View of a Trajectory Data File

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