FrontierPredicate.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 FrontierPredicate.ih
 * @author Jacques-Olivier Lachaud (\c jacques-olivier.lachaud@univ-savoie.fr )
 * Laboratory of Mathematics (CNRS, UMR 5807), University of Savoie, France
 *
 * @date 2011/12/10
 *
 * Implementation of inline methods defined in FrontierPredicate.h
 *
 * This file is part of the DGtal library.
 */
 
///////////////////////////////////////////////////////////////////////////////
// IMPLEMENTATION of inline methods.
///////////////////////////////////////////////////////////////////////////////
 
//////////////////////////////////////////////////////////////////////////////
#include <cstdlib>
//////////////////////////////////////////////////////////////////////////////
 
 
 
///////////////////////////////////////////////////////////////////////////////
// Implementation of inline methods                                          //
//-----------------------------------------------------------------------------
template <typename TKSpace, typename TImage>
inline
DGtal::functors::FrontierPredicate<TKSpace,TImage>::
~FrontierPredicate()
{}
//-----------------------------------------------------------------------------
template <typename TKSpace, typename TImage>
inline
DGtal::functors::FrontierPredicate<TKSpace,TImage>::  
FrontierPredicate( ConstAlias<KSpace> aSpace, ConstAlias<Image> anImage,
                   const Value & l1, const Value & l2 )
  : myPtrSpace( &aSpace ), myPtrImage( &anImage ),
    myLabel1( l1 ), myLabel2( l2 )
{}
//-----------------------------------------------------------------------------
template <typename TKSpace, typename TImage>
inline
DGtal::functors::FrontierPredicate<TKSpace,TImage>::  
FrontierPredicate( const FrontierPredicate & other )
  : myPtrSpace( other.myPtrSpace ), myPtrImage( other.myPtrImage ),
    myLabel1( other.myLabel1 ), myLabel2( other.myLabel2 )
{}
//-----------------------------------------------------------------------------
template <typename TKSpace, typename TImage>
inline
DGtal::functors::FrontierPredicate<TKSpace,TImage> &
DGtal::functors::FrontierPredicate<TKSpace,TImage>::  
operator=( const FrontierPredicate & other )
{
  if ( this != &other )
    {
      myPtrSpace = other.myPtrSpace;
      myPtrImage = other.myPtrImage;
      myLabel1 = other.myLabel1;
      myLabel2 = other.myLabel2;
    }
  return *this;
}
//-----------------------------------------------------------------------------
template <typename TKSpace, typename TImage>
inline
bool
DGtal::functors::FrontierPredicate<TKSpace,TImage>::
operator()( const Surfel & s ) const
{
  Dimension orthDir = myPtrSpace->sOrthDir( s );
  bool orthDirect = myPtrSpace->sDirect( s, orthDir );
  SCell int_spel = myPtrSpace->sIncident( s, orthDir, orthDirect );
  Point int_p = myPtrSpace->sCoords( int_spel );
  Point out_p = int_p;
  out_p[ orthDir ] += orthDirect ? -1 : 1;
  return ( (*myPtrImage)( int_p ) == myLabel1 )
    && ( (*myPtrImage)( out_p ) == myLabel2 );
}
//-----------------------------------------------------------------------------
template <typename TKSpace, typename TImage>
inline
void
DGtal::functors::FrontierPredicate<TKSpace,TImage>::
selfDisplay ( std::ostream & out ) const
{
  out << "[FrontierPredicate]";
}
//-----------------------------------------------------------------------------
template <typename TKSpace, typename TImage>
inline
bool
DGtal::functors::FrontierPredicate<TKSpace,TImage>::
isValid() const
{
    return true;
}
 
///////////////////////////////////////////////////////////////////////////////
// Implementation of inline functions and external operators                 //
 
/**
 * Overloads 'operator<<' for displaying objects of class 'FrontierPredicate'.
 * @param out the output stream where the object is written.
 * @param object the object of class 'FrontierPredicate' to write.
 * @return the output stream after the writing.
 */
template <typename TKSpace, typename TImage>
inline
std::ostream&
DGtal::operator<< ( std::ostream & out,
                    const DGtal::functors::FrontierPredicate<TKSpace,TImage> & object )
{
    object.selfDisplay ( out );
    return out;
}
 
//                                                                           //
///////////////////////////////////////////////////////////////////////////////