testPreimage.cpp File Reference

#include <cstdio>
#include <cmath>
#include <fstream>
#include <vector>
#include <iostream>
#include <sstream>
#include <iterator>
#include "DGtal/base/Common.h"
#include "DGtal/base/Exceptions.h"
#include "DGtal/kernel/SpaceND.h"
#include "DGtal/kernel/domains/DomainPredicate.h"
#include "DGtal/kernel/domains/HyperRectDomain.h"
#include "DGtal/topology/KhalimskySpaceND.h"
#include "DGtal/geometry/curves/GridCurve.h"
#include "DGtal/io/boards/Board2D.h"
#include "DGtal/shapes/fromPoints/StraightLineFrom2Points.h"
#include "DGtal/geometry/tools/Preimage2D.h"
#include "ConfigTest.h"

Go to the source code of this file.

Functions
int	main ()

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Author

Tristan Roussillon (trist.nosp@m.an.r.nosp@m.oussi.nosp@m.llon.nosp@m.@liri.nosp@m.s.cn.nosp@m.rs.fr ) Laboratoire d'InfoRmatique en Image et Systèmes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Date

2010/07/02

This file is part of the DGtal library

Definition in file testPreimage.cpp.

Function Documentation

main()

int main

(

void

)

Definition at line 64 of file testPreimage.cpp.

{
 
  std::string filename = testPath + "samples/DSS.dat";
  std::ifstream instream; // input stream
  instream.open (filename.c_str(), std::ifstream::in);
  
  typedef KhalimskySpaceND<2,int> KSpace; 
  GridCurve<KSpace> c; //grid curve
  c.initFromVectorStream(instream);
 
 
  trace.beginBlock("Simple preimage test");
 
  typedef StraightLineFrom2Points<GridCurve<KSpace>::Point> StraightLine;
  StraightLine aStraightLine; //instance of straight line
  typedef Preimage2D<StraightLine> Preimage2D;
 
  GridCurve<KSpace>::IncidentPointsRange r = c.getIncidentPointsRange(); //range
  GridCurve<KSpace>::IncidentPointsRange::ConstReverseIterator it (r.rbegin()); //iterators
  GridCurve<KSpace>::IncidentPointsRange::ConstReverseIterator itEnd (r.rend()); 
 
  //preimage computation
  Preimage2D thePreimage(it->first, it->second, aStraightLine);
  ++it; 
  while ( (it != itEnd) &&
              (thePreimage.addBack(it->first, it->second)) )
  {
    trace.info() << (it - r.rbegin()) << std::endl << thePreimage << std::endl;
    ++it;
  }
 
  trace.endBlock();
 
  return 0;
}

References DGtal::Preimage2D< Shape >::addBack(), DGtal::Trace::beginBlock(), DGtal::Trace::endBlock(), DGtal::Trace::info(), DGtal::GridCurve< TKSpace >::initFromVectorStream(), and DGtal::trace.