cross_product.h

Go to the documentation of this file.

#ifndef __stir_cross_product_H__
#define __stir_cross_product_H__
//
//
/*
    Copyright (C) 2003- 2005, Hammersmith Imanet Ltd
    This file is part of STIR.

    SPDX-License-Identifier: Apache-2.0

    See STIR/LICENSE.txt for details
*/
#include "stir/CartesianCoordinate3D.h"

START_NAMESPACE_STIR

template <class coordT>
CartesianCoordinate3D<coordT>
cross_product(const CartesianCoordinate3D<coordT>& a, const CartesianCoordinate3D<coordT>& b)
{
  return CartesianCoordinate3D<coordT>(
      a.y() * b.x() - a.x() * b.y(), -a.z() * b.x() + a.x() * b.z(), a.z() * b.y() - a.y() * b.z());
};

END_NAMESPACE_STIR

#endif