MarDiehl / rotations_fortran

Convert rotation representations (Fortran version)

Convert Rotation Representations (Fortran)

Fortran version of a 3D rotations conversion library. Based on marcdegraef/3Drotations.

Implemented representations

• Unit quaternion
• Euler angles (Bunge convention)
• Rotation matrix
• Axis angle representation
• Rodrigues-Frank vector
• Homochoric vector
• Cubochoric vector

Getting started

export FC=gfortran # or ifort or pgfortran
mkdir build
cd build
cmake .. -DCMAKE_Fortran_COMPILER=$FC
make
./src/test_rotations

Prerequisites

• Fortran compiler
  • GNU, version 8.0 or newer (gfortran)
  • Intel, version 18.0 or newer (ifort)
  • PGI, not tested (pgfortran)
• cmake, version 3.10 or newer
• LAPACK library in standard location

License

GNU General Public License v3

Issues

• The tests for Euler angles fail, but this is because comparing Euler angles is difficult.
• Some functions have no unit tests.