EulerAngles.h

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//* This file is part of the MOOSE framework
//* https://www.mooseframework.org
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "MooseTypes.h"
#include "libmesh/vector_value.h"
#include <Eigen/Geometry>
 
// forward declaration
class MooseRandom;
 
class EulerAngles
{
public:
  Real phi1, Phi, phi2;
 
  // default constructor
  EulerAngles();
  // Quaternions to Euler Angles
  EulerAngles(Eigen::Quaternion<Real> & q);
 
  operator RealVectorValue() const { return RealVectorValue(phi1, Phi, phi2); }
 
  void random();
  void random(MooseRandom & random);
  // Euler to Quaternions
  Eigen::Quaternion<Real> toQuaternion();
};