greedyAlphaThickDecomposition.cpp File Reference

#include <iostream>
#include "ConfigExamples.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/base/Common.h"
#include "DGtal/geometry/curves/AlphaThickSegmentComputer.h"
#include "DGtal/io/boards/Board2D.h"
#include "DGtal/geometry/curves/GreedySegmentation.h"
#include <DGtal/io/readers/GenericReader.h>

Include dependency graph for greedyAlphaThickDecomposition.cpp:

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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

Bertrand Kerautret (kerau.nosp@m.tre@.nosp@m.loria.nosp@m..fr ) LORIA (CNRS, UMR 7503), University of Nancy, France

Date

2015/01/30

An example file named exampleAlphaThickSegment

This file is part of the DGtal library.

Definition in file greedyAlphaThickDecomposition.cpp.

Function Documentation

main()

int main

(

void

)

[greedyAlphaThickDecompositionModeDisplay]

[greedyAlphaThickDecompositionModeDisplay]

[greedyAlphaThickDecompositionAlgo]

[greedyAlphaThickDecompositionAlgo]

[greedyAlphaThickDecompositionDisplay]

[greedyAlphaThickDecompositionDisplay]

Definition at line 57 of file greedyAlphaThickDecomposition.cpp.

{
  trace.beginBlock ( "Example of greedy alpha thick segment  decompotion" );
  
  typedef  std::vector<Z2i::RealPoint>::const_iterator ConstIterator;
  typedef  AlphaThickSegmentComputer<Z2i::RealPoint, ConstIterator > AlphaThickSegmentComputer2D;
  
  Board2D aBoard;
  std::string file = examplesPath + "samples/contourSnoisy.sdp";
  std::vector<Z2i::RealPoint> aContour = PointListReader<Z2i::RealPoint>::getPointsFromFile (file);
 
  typedef GreedySegmentation<AlphaThickSegmentComputer2D> DecompositionAT;
 
  // displaying contour
  aBoard << SetMode(aContour[0].className(), "Grid"); 
  std::vector<LibBoard::Point> poly;
  for (unsigned int i = 0; i< aContour.size(); i++)  poly.push_back(LibBoard::Point(aContour[i][0], aContour[i][1]));
  aBoard.setPenColor(DGtal::Color::Gray);
  aBoard.fillPolyline(poly);
  
  // Computing greedy Alpha Thick decomposition.
  aBoard << SetMode("AlphaThickSegment", "BoundingBox");
  
  DecompositionAT theDecomposition(aContour.begin(), aContour.end(), AlphaThickSegmentComputer2D(4)); 
 
  for ( DecompositionAT::SegmentComputerIterator 
           it = theDecomposition.begin(),
           itEnd = theDecomposition.end();
         it != itEnd; ++it ) 
     {
       aBoard << CustomStyle( (*it).className(), 
                              new CustomPenColor( Color::Blue ) );
       aBoard<< *it;
     } 
 
  aBoard.saveEPS("greedyAlphaThickDecomposition.eps");
 
  trace.endBlock();
  return 0;
}

References DGtal::Trace::beginBlock(), DGtal::Color::Blue, DGtal::Trace::endBlock(), LibBoard::Board::fillPolyline(), DGtal::PointListReader< TPoint >::getPointsFromFile(), DGtal::Color::Gray, LibBoard::Board::saveEPS(), LibBoard::Board::setPenColor(), and DGtal::trace.