DGtal  1.1.0
L1LengthEstimator.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 L1LengthEstimator.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 L1LengthEstimator.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 // Interface - public :
40 
41 template <typename T>
42 inline
43 typename DGtal::L1LengthEstimator<T>::Quantity
44 DGtal::L1LengthEstimator<T>::eval( const ConstIterator& itb,
45  const ConstIterator& ite, const double h ) const
46 {
47  ASSERT(h > 0.);
48 
49  Quantity val = 0.;
50 
51  if ( DGtal::isEmpty(itb,ite) )
52  return val;
53 
54  ConstIterator i = itb;
55  do
56  {
57  val += 1.;
58  ++i;
59  }
60  while (i != ite);
61 
62  return val*h;
63 }
64 
65 
66 
67 
68 // ------------------------------------------------------------------------
69 template <typename T>
70 inline
71 void
72 DGtal::L1LengthEstimator<T>::selfDisplay ( std::ostream & out ) const
73 {
74  out << "[L1LengthEstimator]";
75  if (isValid())
76  out <<" initialized";
77  else
78  out<< " not initialized";
79 }
80 
81 // ------------------------------------------------------------------------
82 template <typename T>
83 inline
84 bool
85 DGtal::L1LengthEstimator<T>::isValid() const
86 {
87  return true;
88 }
89 
90 
91 
92 ///////////////////////////////////////////////////////////////////////////////
93 // Implementation of inline functions //
94 
95 template <typename T>
96 inline
97 std::ostream&
98 DGtal::operator<< ( std::ostream & out,
99  const L1LengthEstimator<T> & object )
100 {
101  object.selfDisplay( out );
102  return out;
103 }
104 
105 // //
106 ///////////////////////////////////////////////////////////////////////////////
107 
108