pyscal- A python module for structural analysis of atomic environments

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pyscal is a python module for the calculation of local atomic structural environments including Steinhardt’s bond orientational order parameters during post-processing of atomistic simulation data. The core functionality of pyscal is written in C++ with python wrappers using pybind11 which allows for fast calculations with possibilities for easy expansion in python.

Steinhardt’s order parameters are widely used for identification of crystal structures. They are also used to identify if an atom is solid or liquid. pyscal is inspired by BondOrderAnalysis code, but has since incorporated many additions and modifications. pyscal module includes the following functionality-

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