c3d 0.6.0

Tools

This package includes a script for converting C3D motion data to CSV format (c3d2csv) and an OpenGL-based visualization tool for observing the motion described by a C3D file (c3d-viewer).

Note for the viewer you need to install pyglet. This can be done by installing the gui extra of py-c3d:

pip install "c3d[gui]"

Library

To use the C3D library, just import the package and create a Reader or Writer depending on your intended usage

import c3d

with open('data.c3d', 'rb') as handle:
    reader = c3d.Reader(handle)
    for i, (points, analog) in enumerate(reader.read_frames()):
        print('Frame {}: {}'.format(i, points.round(2)))

You can also get and set metadata fields using the library; see the package documentation for more details.

Developer Install

To work on c3d, first install poetry and then run:

git clone https://github.com/EmbodiedCognition/py-c3d
cd py-c3d
poetry install

This will create a new virtual environment with all the required dependency and c3d in develop mode.

Tests

To run tests available in the test folder, following command can be run from the root of the package directory:

python -m unittest discover .

Test scripts will automatically download test files from c3d.org.