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Documentation for the C3DFIleAdapter is located here. There is a working example Matlab script in your resources directory /Code/Matlab/c3dExport.m. 

We have included a Matlab side class that can be used to perform some common operations, such as rotating data, converting data into Matlab data types, and writing marker and force data to OpenSim file format. The Matlab file can be found in your resources directory /Code/Matlab/Utilities/osimC3D.m. 

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C3DFileAdapter()

To use the OpenSim classes directly, follow the code below. This code will give you OpenSim Times Series Tables for both markers and forces. 

%% Read C3D into memory
% Import OpenSim Library
import org.opensim.modeling.*
 
% Instantiate a C3DFileAdapter()
c3dAdapter = C3DFileAdapter();
% Read c3d data
data = c3dAdapter.read('walking2.c3d');
% Get a TimesSeriesTable with all the marker Data
markers = data.get('markers');
% Get a TimeSeriesTable with all the Force Data
forces = data.get('forces');

osimC3D

We have included a Matlab side class that can be used to perform some common operations, such as rotating data, converting data into Matlab data types, and writing marker and force data to OpenSim file format. The Matlab file can be found in your resources directory /Code/Matlab/Utilities/osimC3D.m. 

Reading Data through Python and C++

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Example code for using the C3DFileAdapter in C++ is found below

Marker Data 

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