centre_of_gravity.h

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//
//
/*
    Copyright (C) 2003- 2007, Hammersmith Imanet Ltd
    This file is part of STIR.

    SPDX-License-Identifier: Apache-2.0

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

START_NAMESPACE_STIR
// predeclerations to avoid having to include the files and create unnecessary
// dependencies
template <int num_dimensions, class T>
class BasicCoordinate;
template <int num_dimensions, class T>
class Array;
template <class elemT>
class VectorWithOffset;
template <class coordT>
class CartesianCoordinate3D;
template <class elemT>
class VoxelsOnCartesianGrid;


template <class T>
T find_unweighted_centre_of_gravity_1d(const VectorWithOffset<T>& row);


template <int num_dimensions, class T>
BasicCoordinate<num_dimensions, T> find_unweighted_centre_of_gravity(const Array<num_dimensions, T>&);


template <class T>
T find_unweighted_centre_of_gravity(const Array<1, T>&);


template <int num_dimensions, class T>
BasicCoordinate<num_dimensions, T> find_centre_of_gravity(const Array<num_dimensions, T>&);


template <class T>
void find_centre_of_gravity_in_mm_per_plane(VectorWithOffset<CartesianCoordinate3D<float>>& allCoG,
                                            VectorWithOffset<T>& weights,
                                            const VoxelsOnCartesianGrid<T>& image);


template <class T>
CartesianCoordinate3D<float> find_centre_of_gravity_in_mm(const VoxelsOnCartesianGrid<T>& image);

END_NAMESPACE_STIR