TrueLocalEstimatorOnPoints.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 TrueLocalEstimatorOnPoints.ih
 * @author David Coeurjolly (\c david.coeurjolly@liris.cnrs.fr )
 * Laboratoire d'InfoRmatique en Image et Systèmes d'information - LIRIS (CNRS, UMR 5205), CNRS, France
 *
 * @date 2011/06/27
 *
 * Implementation of inline methods defined in TrueLocalEstimatorOnPoints.h
 *
 * This file is part of the DGtal library.
 */


//////////////////////////////////////////////////////////////////////////////
#include <cstdlib>
//////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////
// IMPLEMENTATION of inline methods.
///////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////
// ----------------------- Standard services ------------------------------


// ------------------------------------------------------------------------
template <typename CIt, typename PShape, typename PShapeFunctor>
inline
DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::TrueLocalEstimatorOnPoints()
  :myH(0.0), myBegin(), myEnd(), myFunctorPtr(0)
{
}

// ------------------------------------------------------------------------
template <typename CIt, typename PShape, typename PShapeFunctor>
inline
bool
DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::isValid() const
{
  return ( (myH > 0)&&(myFunctorPtr != 0) );
}

// ------------------------------------------------------------------------
template <typename CIt, typename PShape, typename PShapeFunctor>
inline
void
DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>
::init(const double h, 
       const ConstIterator& itb, 
       const ConstIterator& ite) 
{
  myH = h;
  ASSERT(myH > 0); 
  myBegin = itb;
  myEnd = ite;
}

// ------------------------------------------------------------------------
template <typename CIt, typename PShape, typename PShapeFunctor>
inline
void
DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>
::attach(ParametricShape* aShapePtr) 
{
  myFunctorPtr =  new ParametricShapeFunctor(aShapePtr);
}

// ------------------------------------------------------------------------
template <typename CIt, typename PShape, typename PShapeFunctor>
inline
DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::~TrueLocalEstimatorOnPoints()
{
  delete myFunctorPtr; 
}

// ------------------------------------------------------------------------
template <typename CIt, typename PShape, typename PShapeFunctor>
inline
typename DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::Quantity 
DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>
::eval(const ConstIterator& it) const
{ 
  ASSERT( isValid() ); 
  RealPoint p( *it );
  p *= myH;
  return myFunctorPtr->operator()(p);
}

// ------------------------------------------------------------------------
template <typename CIt, typename PShape, typename PShapeFunctor>
template <typename OutputIterator>
inline
OutputIterator
DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>
::eval(const ConstIterator& itb, 
       const ConstIterator& ite,
       OutputIterator result) const
{
  ASSERT( isValid() ); 
  // do-while loop to deal with the case of a whole circular range
  if (isNotEmpty(itb, ite))
    {
      ConstIterator it = itb; 
      do
   {
     *result++ = eval( it );
     ++it; 
   } while (it != ite);
    }
  return result;
}