DGtal  0.9.2
PPMWriter.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 PPMWriter.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 2010/07/22
23  *
24  * Implementation of inline methods defined in PPMWriter.h
25  *
26  * This file is part of the DGtal library.
27  */
28 
29 
30 //////////////////////////////////////////////////////////////////////////////
31 #include <cstdlib>
32 #include <fstream>
33 #include "DGtal/io/Color.h"
34 #include "DGtal/kernel/domains/HyperRectDomain.h"
35 //////////////////////////////////////////////////////////////////////////////
36 
37 ///////////////////////////////////////////////////////////////////////////////
38 // IMPLEMENTATION of inline methods.
39 ///////////////////////////////////////////////////////////////////////////////
40 
41 
42 namespace DGtal {
43 
44  template<typename I,typename C>
45  bool
46  PPMWriter<I,C>::exportPPM(const std::string & filename, const I & aImage,
47  const Functor & aFunctor, bool topbotomOrder)
48  {
49  BOOST_STATIC_ASSERT(I::Domain::dimension == 2);
50 
51  std::ofstream out;
52  typename I::Domain domain = aImage.domain();
53  typename I::Domain::Point p = I::Domain::Point::diagonal(1);
54  typename I::Domain::Vector size = (domain.upperBound() - domain.lowerBound()) + p;
55 
56  typename I::Value val;
57  DGtal::Color col;
58  out.open(filename.c_str());
59 
60  //PPM format
61  out << "P3"<<std::endl;
62  out << "#DGtal PNM Writer"<<std::endl<<std::endl;
63  out << size[0]<<" "<< size[1]<<std::endl;
64  out << "255" <<std::endl;
65 
66  if(!topbotomOrder)
67  {
68  //We scan the domain instead of the image becaus we cannot
69  //trust the image container Iterator
70  for(typename I::Domain::ConstIterator it = domain.begin(), itend=domain.end();
71  it!=itend;
72  ++it)
73  {
74  val = aImage( (*it) );
75  col = aFunctor( val );
76  out << (int)col.red()<<" "<<(int)col.green()<<" "<<(int)col.blue()<<" ";
77  }
78  }
79  else
80  {
81  typename I::Domain::Point ptUpper= domain.upperBound();
82 
83  for(typename HyperRectDomain<typename I::Domain::Space>::ConstSubRange::ConstReverseIterator itY = domain.subRange(1, ptUpper).rbegin(),
84  itYend=domain.subRange(1, ptUpper).rend(); itY!=itYend; ++itY)
85  {
86  typename I::Domain::Point ptUpperY= *itY;
87 
88  for(typename HyperRectDomain<typename I::Domain::Space>::ConstSubRange::ConstIterator it = domain.subRange(0, ptUpperY).begin(),
89  itend=domain.subRange(0, ptUpperY).end();
90  it!=itend;
91  ++it)
92  {
93  val = aImage( (*it) );
94  col = aFunctor( val );
95  out << (int)col.red()<<" "<<(int)col.green()<<" "<<(int)col.blue()<<" ";
96  }
97  }
98  }
99 
100  out.close();
101 
102  ///@todo catch IOerror excpetion
103  return true;
104  }
105 
106  template<typename I,typename C>
107 bool
108 PPMWriter<I,C>::exportPPM3D(const std::string & filename, const I & aImage,
109  const Functor&aFunctor)
110 {
111  BOOST_STATIC_ASSERT(I::Domain::dimension == 3);
112 
113  std::ofstream out;
114  typename I::Domain domain(aImage.lowerBound(), aImage.upperBound());
115  typename I::Domain::Point p = I::Domain::Point::diagonal(1);
116  typename I::Domain::Vector size = (domain.upperBound() - domain.lowerBound()) + p;
117 
118  typename I::Value val;
119  DGtal::Color col;
120 
121  out.open(filename.c_str());
122 
123  //PPM format
124  out << "P3-3D"<<std::endl;
125  out << "#DGtal PNM Writer"<<std::endl<<std::endl;
126  out << size[0]<<" "<< size[1]<<" "<< size[2]<<std::endl;
127  out << "255" <<std::endl;
128 
129  //We scan the domain instead of the image becaus we cannot
130  //trust the image container Iterator
131  for(typename I::Domain::ConstIterator it = domain.begin(), itend=domain.end();
132  it!=itend;
133  ++it)
134  {
135 
136  val = aImage( (*it) );
137  col = aFunctor( val );
138  out << (int)col.red()<<" "<<(int)col.green()<<" "<<(int)col.blue()<<" "; }
139 
140  out.close();
141 
142  ///@todo catch IOerror excpetion
143  return true;
144 }
145 
146 
147 }//namespace