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5.17. Common functions for coordinate reading — MDAnalysis.coordinates.core

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5.18.1. Gromacs XTC trajectory I/O — MDAnalysis.coordinates.xdrfile.XTC

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5.18. NumPy access to Gromacs XDR trajectories — MDAnalysis.coordinates.xdrfile

Gromacs trajectory formats are based on the XDR (eXternal Data Representation) format. Within this module, classes are provided to access frames of Gromacs XTC or TRR trajectories. Relevant data (positions, velocities, forces, box dimensions) are made available as NumPy arrays. The module also contains low-level code in libxdrfile2 that performs the actual file access and includes some additions such as trajectory indices that provide random access for the Gromacs trajectories (which is not available with current standard Gromacs tools).

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