DGtal  0.9.2
FrontierPredicate.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 FrontierPredicate.ih
19  * @author Jacques-Olivier Lachaud (\c jacques-olivier.lachaud@univ-savoie.fr )
20  * Laboratory of Mathematics (CNRS, UMR 5807), University of Savoie, France
21  *
22  * @date 2011/12/10
23  *
24  * Implementation of inline methods defined in FrontierPredicate.h
25  *
26  * This file is part of the DGtal library.
27  */
28 
29 ///////////////////////////////////////////////////////////////////////////////
30 // IMPLEMENTATION of inline methods.
31 ///////////////////////////////////////////////////////////////////////////////
32 
33 //////////////////////////////////////////////////////////////////////////////
34 #include <cstdlib>
35 //////////////////////////////////////////////////////////////////////////////
36 
37 
38 
39 ///////////////////////////////////////////////////////////////////////////////
40 // Implementation of inline methods //
41 //-----------------------------------------------------------------------------
42 template <typename TKSpace, typename TImage>
43 inline
44 DGtal::functors::FrontierPredicate<TKSpace,TImage>::
45 ~FrontierPredicate()
46 {}
47 //-----------------------------------------------------------------------------
48 template <typename TKSpace, typename TImage>
49 inline
50 DGtal::functors::FrontierPredicate<TKSpace,TImage>::
51 FrontierPredicate( ConstAlias<KSpace> aSpace, ConstAlias<Image> anImage,
52  const Value & l1, const Value & l2 )
53  : myPtrSpace( &aSpace ), myPtrImage( &anImage ),
54  myLabel1( l1 ), myLabel2( l2 )
55 {}
56 //-----------------------------------------------------------------------------
57 template <typename TKSpace, typename TImage>
58 inline
59 DGtal::functors::FrontierPredicate<TKSpace,TImage>::
60 FrontierPredicate( const FrontierPredicate & other )
61  : myPtrSpace( other.myPtrSpace ), myPtrImage( other.myPtrImage ),
62  myLabel1( other.myLabel1 ), myLabel2( other.myLabel2 )
63 {}
64 //-----------------------------------------------------------------------------
65 template <typename TKSpace, typename TImage>
66 inline
67 DGtal::functors::FrontierPredicate<TKSpace,TImage> &
68 DGtal::functors::FrontierPredicate<TKSpace,TImage>::
69 operator=( const FrontierPredicate & other )
70 {
71  if ( this != &other )
72  {
73  myPtrSpace = other.myPtrSpace;
74  myPtrImage = other.myPtrImage;
75  myLabel1 = other.myLabel1;
76  myLabel2 = other.myLabel2;
77  }
78  return *this;
79 }
80 //-----------------------------------------------------------------------------
81 template <typename TKSpace, typename TImage>
82 inline
83 bool
84 DGtal::functors::FrontierPredicate<TKSpace,TImage>::
85 operator()( const Surfel & s ) const
86 {
87  Dimension orthDir = myPtrSpace->sOrthDir( s );
88  bool orthDirect = myPtrSpace->sDirect( s, orthDir );
89  SCell int_spel = myPtrSpace->sIncident( s, orthDir, orthDirect );
90  Point int_p = myPtrSpace->sCoords( int_spel );
91  Point out_p = int_p;
92  out_p[ orthDir ] += orthDirect ? -1 : 1;
93  return ( (*myPtrImage)( int_p ) == myLabel1 )
94  && ( (*myPtrImage)( out_p ) == myLabel2 );
95 }
96 //-----------------------------------------------------------------------------
97 template <typename TKSpace, typename TImage>
98 inline
99 void
100 DGtal::functors::FrontierPredicate<TKSpace,TImage>::
101 selfDisplay ( std::ostream & out ) const
102 {
103  out << "[FrontierPredicate]";
104 }
105 //-----------------------------------------------------------------------------
106 template <typename TKSpace, typename TImage>
107 inline
108 bool
109 DGtal::functors::FrontierPredicate<TKSpace,TImage>::
110 isValid() const
111 {
112  return true;
113 }
114 
115 ///////////////////////////////////////////////////////////////////////////////
116 // Implementation of inline functions and external operators //
117 
118 /**
119  * Overloads 'operator<<' for displaying objects of class 'FrontierPredicate'.
120  * @param out the output stream where the object is written.
121  * @param object the object of class 'FrontierPredicate' to write.
122  * @return the output stream after the writing.
123  */
124 template <typename TKSpace, typename TImage>
125 inline
126 std::ostream&
127 DGtal::operator<< ( std::ostream & out,
128  const DGtal::functors::FrontierPredicate<TKSpace,TImage> & object )
129 {
130  object.selfDisplay ( out );
131  return out;
132 }
133 
134 // //
135 ///////////////////////////////////////////////////////////////////////////////
136 
137