DGtal  1.1.0
TrueLocalEstimatorOnPoints.ih
1 /**
2  * This program is free software: you can redistribute it and/or modify
3  * it under the terms of the GNU Lesser General Public License as
4  * published by the Free Software Foundation, either version 3 of the
5  * License, or (at your option) any later version.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * along with this program. If not, see <http://www.gnu.org/licenses/>.
14  *
15  **/
16 
17 /**
18  * @file TrueLocalEstimatorOnPoints.ih
19  * @author David Coeurjolly (\c david.coeurjolly@liris.cnrs.fr )
20  * Laboratoire d'InfoRmatique en Image et Systèmes d'information - LIRIS (CNRS, UMR 5205), CNRS, France
21  *
22  * @date 2011/06/27
23  *
24  * Implementation of inline methods defined in TrueLocalEstimatorOnPoints.h
25  *
26  * This file is part of the DGtal library.
27  */
28 
29 
30 //////////////////////////////////////////////////////////////////////////////
31 #include <cstdlib>
32 //////////////////////////////////////////////////////////////////////////////
33 
34 ///////////////////////////////////////////////////////////////////////////////
35 // IMPLEMENTATION of inline methods.
36 ///////////////////////////////////////////////////////////////////////////////
37 
38 ///////////////////////////////////////////////////////////////////////////////
39 // ----------------------- Standard services ------------------------------
40 
41 template <typename CIt, typename PShape, typename PShapeFunctor>
42 inline
43 DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::TrueLocalEstimatorOnPoints()
44  : myFunctorPtr(nullptr) {}
45 
46 // ------------------------------------------------------------------------
47 template <typename CIt, typename PShape, typename PShapeFunctor>
48 inline
49 DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::~TrueLocalEstimatorOnPoints()
50 {
51  if ( myFunctorPtr != nullptr )
52  delete myFunctorPtr;
53 }
54 
55 ///////////////////////////////////////////////////////////////////////////////
56 // Interface - public :
57 
58 template <typename CIt, typename PShape, typename PShapeFunctor>
59 inline
60 void
61 DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>
62 ::attach(const ParametricShape& aShape)
63 {
64  if ( myFunctorPtr != nullptr )
65  delete myFunctorPtr;
66  myFunctorPtr = new ParametricShapeFunctor(aShape);
67 }
68 
69 // ------------------------------------------------------------------------
70 template <typename CIt, typename PShape, typename PShapeFunctor>
71 inline
72 typename DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::Quantity
73 DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>
74 ::eval(const ConstIterator& it, const double h) const
75 {
76  ASSERT( isValid() );
77  RealPoint p( *it );
78  p *= h;
79  return myFunctorPtr->operator()(p);
80 }
81 
82 // ------------------------------------------------------------------------
83 template <typename CIt, typename PShape, typename PShapeFunctor>
84 template <typename OutputIterator>
85 inline
86 OutputIterator
87 DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>
88 ::eval(const ConstIterator& itb,
89  const ConstIterator& ite,
90  OutputIterator result,
91  const double h) const
92 {
93  ASSERT( isValid() );
94  if (isEmpty(itb, ite))
95  return result;
96 
97  // do-while loop to deal with the case of a whole circular range
98  ConstIterator it = itb;
99  do
100  {
101  *result++ = eval( it, h );
102  ++it;
103  } while (it != ite);
104 
105  return result;
106 }
107 
108 // ------------------------------------------------------------------------
109 template <typename CIt, typename PShape, typename PShapeFunctor>
110 inline
111 bool
112 DGtal::TrueLocalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::isValid() const
113 {
114  return myFunctorPtr != nullptr;
115 }