CanonicCellEmbedder.ih

/**
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or  (at your option) any later version.
 *
 *  This program 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 CanonicCellEmbedder.ih
 * @author Jacques-Olivier Lachaud (\c jacques-olivier.lachaud@univ-savoie.fr )
 * Laboratory of Mathematics (CNRS, UMR 5127), University of Savoie, France
 *
 * @date 2012/02/28
 *
 * Implementation of inline methods defined in CanonicCellEmbedder.h
 *
 * This file is part of the DGtal library.
 */
 
///////////////////////////////////////////////////////////////////////////////
// IMPLEMENTATION of inline methods.
///////////////////////////////////////////////////////////////////////////////
 
//////////////////////////////////////////////////////////////////////////////
#include <cstdlib>
#include <cmath>
#include "DGtal/kernel/NumberTraits.h"
//////////////////////////////////////////////////////////////////////////////
 
 
 
///////////////////////////////////////////////////////////////////////////////
// Implementation of inline methods                                          //
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
DGtal::CanonicCellEmbedder<TKSpace>::
~CanonicCellEmbedder()
{}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
DGtal::CanonicCellEmbedder<TKSpace>::
CanonicCellEmbedder()
  : myKSpace( 0 )
{}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
DGtal::CanonicCellEmbedder<TKSpace>::
CanonicCellEmbedder( ConstAlias<KSpace> aKSpace )
  : myKSpace( &aKSpace )
{}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
DGtal::CanonicCellEmbedder<TKSpace>::
CanonicCellEmbedder( const Self & other )
  : myKSpace( other.myKSpace )
{}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
typename DGtal::CanonicCellEmbedder<TKSpace>::Self &
DGtal::CanonicCellEmbedder<TKSpace>::
operator=( const Self & other )
{
  myKSpace = other.myKSpace;
  return *this;
}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
const typename DGtal::CanonicCellEmbedder<TKSpace>::KSpace &
DGtal::CanonicCellEmbedder<TKSpace>::space() const
{
  ASSERT( this->isValid() );
  return *myKSpace;
}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
typename DGtal::CanonicCellEmbedder<TKSpace>::RealPoint
DGtal::CanonicCellEmbedder<TKSpace>::embed( const Cell & cell ) const
{
  return this->operator()( cell );
}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
typename DGtal::CanonicCellEmbedder<TKSpace>::RealPoint
DGtal::CanonicCellEmbedder<TKSpace>::operator()( const Cell & cell ) const
{
  ASSERT( this->isValid() );
  Point dp = myKSpace->uKCoords( cell );
  RealPoint p;
  for ( Dimension i = 0; i < dp.size(); ++i )
    p[ i ] = ( NumberTraits<Integer>::castToDouble( dp[ i ] ) / 2.0 ) - 0.5; /// In Khalimsky Space, 0-Cells have even coordinates, while in the embedding, voxel centers have integer coordinates, we need to shift all coordinates by -1/2
  return p;
}
//-----------------------------------------------------------------------------
template <typename TKSpace>
inline
bool
DGtal::CanonicCellEmbedder<TKSpace>::isValid( ) const
{
  return myKSpace != 0;
}
///////////////////////////////////////////////////////////////////////////////
// Implementation of inline functions and external operators                 //
 
/**
 * Overloads 'operator<<' for displaying objects of class 'CanonicCellEmbedder'.
 * @param out the output stream where the object is written.
 * @param object the object of class 'CanonicCellEmbedder' to write.
 * @return the output stream after the writing.
 */
template <typename TKSpace>
inline
std::ostream&
DGtal::operator<< ( std::ostream & out,
                    const CanonicCellEmbedder<TKSpace> & object )
{
    object.selfDisplay ( out );
    return out;
}
 
//                                                                           //
///////////////////////////////////////////////////////////////////////////////