ProCalc always needs some motion captured data to work with. The data is loaded from a C3D file, which could contain one or more of the following:
- 3D trajectories (XYZ positions of markers in space and time).
- Modeled data (joint angles, moments, forces, powers and so on), for example, from the Plug-in Gait model.
- Standard Vicon events (left/right/general foot strike/foot off/general).
- Analog data (for example EMG or force plates).
When you launch ProCalc, the main ProCalc interface appears:
To enlarge images in Vicon documentation, click on them.
The main window consists of four parts:
- Top left lists the variables or trials that you’re currently working with.
- Bottom left contains buttons, menus and other controls that let you modify the variables.
- Top right contains the 3D workspace that shows you what you’re working with.
- Bottom right contains a textual log output window.
To load data:
- At the top left, click the Data Management tab.
- Navigate to the desired .c3d file and double-click it.
The .c3d file is displayed in the 3D workspace as a stick figure, similar to the display in Vicon Nexus.