image3d.hh

// Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena 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, version 2 of the License.
//
// Olena 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 Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#ifndef MLN_MAKE_IMAGE3D_HH
# define MLN_MAKE_IMAGE3D_HH


# include <mln/core/image/image3d.hh>
# include <mln/core/image/image2d.hh>
# include <mln/core/image/dmorph/slice_image.hh>
# include <mln/data/paste.hh>
# include <mln/util/array.hh>



namespace mln
{

  namespace make
  {

    template <typename I>
    mln::image3d<mln_value(I)>
    image3d(const util::array<I>& ima);

    template <typename I>
    mln::image3d<mln_value(I)>
    image3d(const Image<I>& ima);


# ifndef MLN_INCLUDE_ONLY

    template <typename I>
    inline
    mln::image3d<mln_value(I)>
    image3d(const util::array<I>& ima)
    {
      mlc_equal(mln_domain(I), mln::box2d)::check();
      mln_precondition(! ima.is_empty());

      def::coord n_slices = ima.nelements();
      mln::box2d b = ima[0].domain();
      mln::box3d b_ = make::box3d(0,            b.pmin().row(), b.pmin().col(),
                                  n_slices - 1, b.pmax().row(), b.pmax().col());
      mln::image3d<mln_value(I)> output(b_);
      for (def::coord sli = 0; sli < n_slices; ++sli)
        {
          mln_assertion(ima[sli].domain() == b);
          data::paste(ima[sli], slice(output, sli).rw());
        }
      return output;
    }


    template <typename I>
    inline
    mln::image3d<mln_value(I)>
    image3d(const Image<I>& ima_)
    {
      const I& ima = exact(ima_);

      mlc_equal(mln_domain(I), mln::box2d)::check();
      mln_precondition(ima.is_valid());

      mln::box2d b = ima.domain();
      mln::box3d b_ = make::box3d(0, b.pmin().row(), b.pmin().col(),
                                  0, b.pmax().row(), b.pmax().col());
      mln::image3d<mln_value(I)> output(b_);
      data::paste(ima, slice(output, 0).rw());

      return output;
    }

# endif // ! MLN_INCLUDE_ONLY

  } // end of namespace mln::make

} // end of namespace mln


#endif // ! MLN_MAKE_IMAGE3D_HH