AngleUnits.h

#ifndef MANTID_GEOMETRY_ANGLEUNITS_H_
#define MANTID_GEOMETRY_ANGLEUNITS_H_

#include "MantidGeometry/DllConfig.h"
#include "MantidKernel/PhysicalConstants.h"
#include <cmath>

namespace Mantid {
namespace Geometry {
/**
  Defines units/enum for Crystal work

  Copyright &copy; 2011 ISIS Rutherford Appleton Laboratory, NScD Oak Ridge
  National Laboratory & European Spallation Source

  This file is part of Mantid.

  Mantid is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 3 of the License, or
  (at your option) any later version.

  Mantid is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

  File change history is stored at: <https://github.com/mantidproject/mantid>.
  Code Documentation is available at: <http://doxygen.mantidproject.org>
 */

/// Degrees to radians conversion factor
constexpr double deg2rad = M_PI / 180.;

/// Radians to degrees conversion factor
constexpr double rad2deg = 180. / M_PI;

/// Flag for angle units used in UnitCell class
enum AngleUnits { angDegrees, angRadians };
} // namespace Geometry
} // namespace Mantid

#endif /* MANTID_GEOMETRY_ANGLEUNITS_H_ */