Along with the EMsoft 5.0 release, we provide a new indexing program (EMSphInx, public beta version 0.2) based on the spherical harmonic transform of the master pattern; in particular, we provide support for EBSD indexing, but the approach is more general and other modalities will be made available as we go along.
The main source code repository for EMSphInx is located here. This is a self-contained repository, completely separate from EMsoft and falls under a GPL2 license. The package can be built using CMake and gcc or clang.
EMSphInx uses .sht files as master pattern input as described below. The standard EMsoft master pattern files can be converted to the .sht format either from inside the GUI or via a command line program.
This site also has a binary release for several platforms; check this page.
The .sht file format is a new binary file format for the storage of the spherical harmonic transform of data that lives on a sphere. This repository has a BSD3 license, and provides a single .hpp file with a C++ class to read and write the .sht file format.
We provide a data base with .sht files for 120 common crystal structures and for 5 different microscope accelerating voltages (10, 15, 20, 25, and 30 kV).
This code was made possible with financial support from:
- Vannevar Faculty Bush Fellowship ONR N00014-16-1-2821
Copyright Statement for EMSphInx
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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END OF TERMS AND CONDITIONS