DGtal  1.3.beta
TrueGlobalEstimatorOnPoints.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
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 TrueGlobalEstimatorOnPoints.h.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 
42 // ------------------------------------------------------------------------
43 template <typename CIt, typename PShape, typename PShapeFunctor>
44 inline
45 DGtal::TrueGlobalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::TrueGlobalEstimatorOnPoints()
46  : myFunctorPtr(nullptr) {}
47 
48 // ------------------------------------------------------------------------
49 template <typename CIt, typename PShape, typename PShapeFunctor>
50 inline
51 DGtal::TrueGlobalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::~TrueGlobalEstimatorOnPoints()
52 {
53  if ( myFunctorPtr != nullptr )
54  delete myFunctorPtr;
55 }
56 
57 // ------------------------------------------------------------------------
58 template <typename CIt, typename PShape, typename PShapeFunctor>
59 inline
60 void
61 DGtal::TrueGlobalEstimatorOnPoints<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::TrueGlobalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::Quantity
73 DGtal::TrueGlobalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::eval() const
74 {
75  ASSERT(isValid());
76  return myFunctorPtr->operator()();
77 }
78 
79 // ------------------------------------------------------------------------
80 template <typename CIt, typename PShape, typename PShapeFunctor>
81 inline
82 typename DGtal::TrueGlobalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::Quantity
83 DGtal::TrueGlobalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::eval(const ConstIterator& itb,
84  const ConstIterator& ite,
85  const double h) const
86 {
87  ASSERT(isValid() && h>0.);
88 
89  ConstIterator lastPoint(ite);
90  --lastPoint;
91 
92  RealPoint p( *itb );
93  RealPoint p2( *lastPoint );
94 
95  return myFunctorPtr->operator()(p*h,p2*h);
96 }
97 
98 // ------------------------------------------------------------------------
99 template <typename CIt, typename PShape, typename PShapeFunctor>
100 inline
101 bool
102 DGtal::TrueGlobalEstimatorOnPoints<CIt,PShape,PShapeFunctor>::isValid() const
103 {
104  return myFunctorPtr != nullptr;
105 }
106 
107