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HEXRD

The HEXRD project is developing a cross-platform, open-source library for the general analysis of X-ray diffraction data. This includes powder diffraction, Laue diffraction, and High Energy Diffraction Microscopy (a.k.a. 3DXRD, multi-grain rotation method) modalities. At its core, HEXRD provides an abstraction of a generic diffraction instrument with support for multiple detectors. This includes optimized transforms from the direct and reciprocal crystal lattices to the local detector coordinates, harnesses for interpolating image data into scattering angle coordinates, and sophisticated calibration routines.

Installing

Requires Python 3.8+ (Python 3.9 recommended). It is generally recommended for interactive use to install hexrd into a fresh environment with Spyder and Jupyter as well. The GUI is in a separate package here.

conda (main releases)

To install the latest stable release, do:

conda install -c hexrd -c conda-forge hexrd

conda (prerelease)

To install the latest changes on master, do the following (Note that this release may be unstable!):

conda install -c hexrd/label/hexrd-prerelease -c hexrd -c conda-forge hexrd

Run

There is currently a CLI for far-field HEDM analysis (a.k.a. 3DXRD). Other CLI's for high-level functions are under development.

> hexrd --help

usage: hexrd [-h] [--debug] [--inst-profile INST_PROFILE] [--version] command ...

High energy diffraction data analysis

positional arguments:
  command
    help                Displays a list of available conda commands and their help strings.
    test                runs the hexrd test suite
    documentation       Launches the hexrd documentation (work in progress) in a web browser
    find-orientations   Process rotation image series to find grain orientations
    fit-grains          Extracts G vectors, grain position and strain
    pickle23            modify old material files (pickles) to be compatible with hexrd3; it makes a backup and overwrites the
                        original file

optional arguments:
  -h, --help            show this help message and exit
  --debug               verbose reporting
  --inst-profile INST_PROFILE
                        use the following files as source for functions to instrument
  --version             show program's version number and exit

Development

Requires Python 3.8+ and a C compiler (e.g., gcc or VisualStudio). First clone the Git repository:

git clone https://github.com/hexrd/hexrd.git

pip

# For now we need to explicitly install hexrd, until we push it to PyPI
pip install -e hexrd

conda

It is highly recommended to install hexrd in its own virtual env

conda create --hexrd-dev python=3.9 hexrd
conda activate hexrd-dev

Linux and Mac OS

# First, make sure python3.8+ is installed in your target env.
# If it is not, run the following command:
conda install -c conda-forge python=3.9

# Install deps using conda package
conda install -c hexrd/label/hexrd-prerelease -c hexrd -c conda-forge hexrd

# Now using pip to link repo's into environment for development
CONDA_BUILD=1 pip install --no-build-isolation --no-deps -U -e hexrd

Windows

# First, make sure python3.8+ is installed in your target env.
# If it is not, run the following command:
conda install -c conda-forge python=3.9

# Install deps using conda package
conda install -c hexrd/label/hexrd-prerelease -c hexrd -c conda-forge hexrd

# Now using pip to link repo's into environment for development
set CONDA_BUILD=1
pip install --no-build-isolation --no-deps -U -e hexrd

Have fun!