C++ Board2D::setPenColor方法代码示例

int main()
{
  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.
  //! [greedyAlphaThickDecompositionModeDisplay]
  aBoard << SetMode("AlphaThickSegment", "BoundingBox");
  //! [greedyAlphaThickDecompositionModeDisplay]
  
  //! [greedyAlphaThickDecompositionAlgo]
  DecompositionAT theDecomposition(aContour.begin(), aContour.end(), AlphaThickSegmentComputer2D(4)); 
  //! [greedyAlphaThickDecompositionAlgo]

  //! [greedyAlphaThickDecompositionDisplay]  
  for ( DecompositionAT::SegmentComputerIterator 
           it = theDecomposition.begin(),
           itEnd = theDecomposition.end();
         it != itEnd; ++it ) 
     {
       aBoard << CustomStyle( (*it).className(), 
                              new CustomPenColor( Color::Blue ) );
       aBoard<< *it;
     } 
  //! [greedyAlphaThickDecompositionDisplay]  

  aBoard.saveEPS("greedyAlphaThickDecomposition.eps");

  trace.endBlock();
  return 0;
}

/**
 * testDisplay
 *
 */
bool testDisplay()
{
  typedef FreemanChain<int> FreemanChain;
  //typedef FreemanChain::Point Point;
  //typedef FreemanChain::Vector Vector;
  //typedef FreemanChain::ConstIterator Iterator;
  //typedef std::vector<unsigned int> numVector;

  Board2D aBoard;
  aBoard.setUnit(Board::UCentimeter);
  
  fstream fst;
  fst.open ((testPath + "samples/contourS.fc").c_str() , ios::in);
  FreemanChain fc(fst);  

  aBoard.setPenColor(Color::Red);
  
  //aBoard << DrawPavingPixel();
  
  aBoard << fc;
  
  std::string filenameImage = testPath + "samples/contourS.png"; // ! only PNG with Cairo for the moment !
  LibBoard::Image image( 0, 84, 185, 85, filenameImage, 20 ); 
  image.shiftDepth(500);
  LibBoard::Board & board = aBoard;
  board << image;
  
  aBoard.saveSVG( "testDisplayFC.svg", Board::BoundingBox, 5000 );
  aBoard.saveEPS( "testDisplayFC.eps", Board::BoundingBox, 5000 );
  aBoard.saveFIG( "testDisplayFC.fig", Board::BoundingBox, 5000 );
  
#ifdef WITH_CAIRO
  aBoard.saveCairo("testDisplayFC-cairo.pdf", Board2D::CairoPDF, Board::BoundingBox, 5000);
  aBoard.saveCairo("testDisplayFC-cairo.png", Board2D::CairoPNG, Board::BoundingBox, 5000);
  aBoard.saveCairo("testDisplayFC-cairo.ps",  Board2D::CairoPS,  Board::BoundingBox, 5000);
  aBoard.saveCairo("testDisplayFC-cairo.svg", Board2D::CairoSVG, Board::BoundingBox, 5000);
#endif
  
  return true;
}

int 
main(int argc, char ** argv){
  typedef Z2i::Point Point;
  std::vector<Point> contour = PointListReader<Point>::getPointsFromFile("../Samples/contourS.sdp");
  Board2D aBoard;
  for (auto&& p :contour) {
    aBoard << p;
  }
  aBoard.setPenColor(DGtal::Color::Red);
  aBoard.setFillColor(DGtal::Color::Red);
  aBoard.drawCircle(contour[30][0], contour[30][1],1); 
  unsigned int startIndex = 30;
  typedef  AlphaThickSegmentComputer< Z2i::Point > AlphaThickSegmentComputer2D;
  AlphaThickSegmentComputer2D aComputer(5);
  aComputer.init(contour.begin()+30);
  while(aComputer.extendFront()){
  }

  aBoard  << CustomStyle( aComputer.className(), new CustomColors( DGtal::Color::Blue, DGtal::Color::None ) );  
  aBoard << aComputer;
  aBoard.saveEPS("resultTuto2.eps");
  
  return 0;
}

/**
 * Algorithms that computes the convex hull
 * of a point set
 */
void convexHull()
{
  //Digitization of a disk of radius 6
  Ball2D<Z2i::Space> ball(Z2i::Point(0,0), 6);
  Z2i::Domain domain(ball.getLowerBound(), ball.getUpperBound());
  Z2i::DigitalSet pointSet(domain);   
  Shapes<Z2i::Domain>::euclideanShaper(pointSet, ball);

  //! [Hull2D-Namespace]
  using namespace functions::Hull2D; 
  //! [Hull2D-Namespace]

  //! [Hull2D-Functor]
  typedef InHalfPlaneBySimple3x3Matrix<Z2i::Point, DGtal::int64_t> Functor;  
  Functor functor; 
  //! [Hull2D-Functor]

  { //convex hull in counter-clockwise order
    vector<Z2i::Point> res; 

    //! [Hull2D-StrictPredicateCCW]
    typedef PredicateFromOrientationFunctor2<Functor, false, false> StrictPredicate; 
    StrictPredicate predicate( functor ); 
    //! [Hull2D-StrictPredicateCCW]
    //according to the last two template arguments, neither strictly negative values, nor zeros are accepted: 
    //the predicate returns 'true' only for strictly positive values returned by the underlying functor. 

    //! [Hull2D-AndrewAlgo]
    andrewConvexHullAlgorithm( pointSet.begin(), pointSet.end(), back_inserter( res ), predicate );   
    //! [Hull2D-AndrewAlgo]
    //![Hull2D-Caliper-computeBasic]
    double th = DGtal::functions::Hull2D::computeHullThickness(res.begin(), res.end(), DGtal::functions::Hull2D::HorizontalVerticalThickness);
    //![Hull2D-Caliper-computeBasic]

    //![Hull2D-Caliper-computeAnti]
    Z2i::Point antipodalP, antipodalQ, antipodalS;
    th = DGtal::functions::Hull2D::computeHullThickness(res.begin(), res.end(), DGtal::functions::Hull2D::HorizontalVerticalThickness, antipodalP, antipodalQ, antipodalS);
    //![Hull2D-Caliper-computeAnti]

    
    trace.info() <<" ConvexHull HV thickness: " << th << std::endl;
    //display
    Board2D board;
    drawPolygon( res.begin(), res.end(), board ); 
    //![Hull2D-Caliper-display]
    board.setPenColor(DGtal::Color::Red);
    board.drawCircle( antipodalS[0], antipodalS[1], 0.2) ;
    board.setPenColor(DGtal::Color::Blue);
    board.drawCircle(antipodalP[0], antipodalP[1], 0.2);
    board.drawCircle(antipodalQ[0], antipodalQ[1], 0.2);
    board.drawLine(antipodalP[0], antipodalP[1], antipodalQ[0], antipodalQ[1]);
    //![Hull2D-Caliper-display]
    
    board.saveSVG( "ConvexHullCCW.svg" );  
#ifdef WITH_CAIRO
    board.saveCairo("ConvexHullCCW.png", Board2D::CairoPNG);
#endif
  }

  { //convex hull in counter-clockwise order with all the points lying on the edges
    vector<Z2i::Point> res; 

    //! [Hull2D-LargePredicateCCW]
    typedef PredicateFromOrientationFunctor2<Functor, false, true> LargePredicate; 
    LargePredicate predicate( functor ); 
    //! [Hull2D-LargePredicateCCW]
    //according to the last template argument, zeros are accepted so that  
    //the predicate returns 'true' for all the positive values returned by the underlying functor. 

    //andrew algorithm
    andrewConvexHullAlgorithm( pointSet.begin(), pointSet.end(), back_inserter( res ), predicate );   

    //display
    Board2D board;
    drawPolygon( res.begin(), res.end(), board ); 
    board.saveSVG( "ConvexHullCCWWithPointsOnEdges.svg" );  
#ifdef WITH_CAIRO
    board.saveCairo("ConvexHullCCWWithPointsOnEdges.png", Board2D::CairoPNG);
#endif

  }

  { //convex hull in clockwise order
    vector<Z2i::Point> res; 

    //! [Hull2D-StrictPredicateCW]
    typedef PredicateFromOrientationFunctor2<Functor, true, false> StrictPredicate; 
    StrictPredicate predicate( functor );
    //! [Hull2D-StrictPredicateCW]
    //according to the last two argument template, 
    //the predicate returns 'true' only for strictly negative values returned by the underlying functor. 

    //andrew algorithm
    andrewConvexHullAlgorithm( pointSet.begin(), pointSet.end(), back_inserter( res ), predicate );   

    //display
//.........这里部分代码省略.........

int main( int argc, char** argv )
{

    // parse command line ----------------------------------------------
    po::options_description general_opt("Allowed options are: ");
    general_opt.add_options()
    ("help,h", "display this message")
    ("input,i", po::value<std::string>(), "input FreemanChain file name")
    ("SDP", po::value<std::string>(), "Import a contour as a Sequence of Discrete Points (SDP format)")
    ("SFP", po::value<std::string>(), "Import a contour as a Sequence of Floating Points (SFP format)")
    ("drawContourPoint", po::value<double>(), "<size> display contour points as disk of radius <size>")
    ("fillContour", "fill the contours with default color (gray)")
    ("lineWidth", po::value<double>()->default_value(1.0), "Define the linewidth of the contour (SDP format)")
    ("drawPointOfIndex", po::value<int>(), "<index> Draw the contour point of index <index> (default 0) ")
    ("pointSize", po::value<double>()->default_value(2.0), "<size> Set the display point size of the point displayed by drawPointofIndex option (default 2.0) ")
    ("noXFIGHeader", " to exclude xfig header in the resulting output stream (no effect with option -outputFile).")
    ("withProcessing", po::value<std::string>(), "Processing (used only when the input is a Freeman chain (--input)):\n\t DSS segmentation {DSS}\n\t  Maximal segments {MS}\n\t Faithful Polygon {FP}\n\t Minimum Length Polygon {MLP}")
    ("outputFile,o", po::value<std::string>(), " <filename> save output file automatically according the file format extension.")
    ("outputStreamEPS", " specify eps for output stream format.")
    ("outputStreamSVG", " specify svg for output stream format.")
    ("outputStreamFIG", " specify fig for output stream format.")
    ("invertYaxis", " invertYaxis invert the Y axis for display contours (used only with --SDP)")

    ("backgroundImage", po::value<std::string>(), "backgroundImage <filename> : display image as background ")
    ("alphaBG", po::value<double>(), "alphaBG <value> 0-1.0 to display the background image in transparency (default 1.0), (transparency works only if cairo is available)")

    ("scale", po::value<double>(), "scale <value> 1: normal; >1 : larger ; <1 lower resolutions  )");



    bool parseOK=true;
    po::variables_map vm;
    try {
        po::store(po::parse_command_line(argc, argv, general_opt), vm);
    } catch(const std::exception& ex) {
        parseOK=false;
        trace.info()<< "Error checking program options: "<< ex.what()<< std::endl;
    }

    po::notify(vm);
    if(!parseOK||vm.count("help")||argc<=1 || (!(vm.count("input")) && !(vm.count("SDP")) && !(vm.count("SFP"))&&
            !(vm.count("backgroundImage")) ) )
    {
        trace.info()<< "Display discrete contours. " <<std::endl << "Basic usage: "<<std::endl
                    << "\t displayContours [options] --input  <fileName>  "<<std::endl
                    << general_opt << "\n";
        return 0;
    }



    double lineWidth=  vm["lineWidth"].as<double>();
    bool filled = vm.count("fillContour");
    double scale=1.0;
    if(vm.count("scale")) {
        scale = vm["scale"].as<double>();
    }

    Board2D aBoard;
    aBoard.setUnit (0.05*scale, LibBoard::Board::UCentimeter);





    double alpha=1.0;
    if(vm.count("alphaBG")) {
        alpha = vm["alphaBG"].as<double>();
    }

    if(vm.count("backgroundImage")) {
        std::string imageName = vm["backgroundImage"].as<std::string>();
        typedef ImageSelector<Z2i::Domain, unsigned char>::Type Image;
        Image img = DGtal::GenericReader<Image>::import( imageName );
        Z2i::Point ptInf = img.domain().lowerBound();
        Z2i::Point ptSup = img.domain().upperBound();
        unsigned int width = abs(ptSup[0]-ptInf[0]+1);
        unsigned int height = abs(ptSup[1]-ptInf[1]+1);

        aBoard.drawImage(imageName, 0-0.5,height-0.5, width, height, -1, alpha );
    }




    if(vm.count("input")) {
        std::string fileName = vm["input"].as<std::string>();
        std::vector< FreemanChain<int> > vectFc =  PointListReader< Z2i::Point>:: getFreemanChainsFromFile<int> (fileName);
        aBoard << CustomStyle( vectFc.at(0).className(),
                               new CustomColors( Color::Red  ,  filled?  Color::Gray: Color::None  ) );
        aBoard.setLineWidth (lineWidth);
        for(unsigned int i=0; i<vectFc.size(); i++) {
            aBoard <<  vectFc.at(i) ;
            if(vm.count("drawPointOfIndex")) {
                int index = vm["drawPointOfIndex"].as<int>();
                double size = vm["pointSize"].as<double>();
                aBoard.setPenColor(Color::Blue);

                aBoard.fillCircle((double)(vectFc.at(i).getPoint(index)[0]), (double)(vectFc.at(i).getPoint(index)[1]), size);
            }
//.........这里部分代码省略.........

//.........这里部分代码省略.........
  if(args.check("-backgroundImageXFIG")){
    string imageName = args.getOption("-backgroundImageXFIG")->getValue(0);
    unsigned int width = args.getOption("-backgroundImageXFIG")->getIntValue(1);
    unsigned int height = args.getOption("-backgroundImageXFIG")->getIntValue(2);
    aBoard.drawImage(imageName, 0,height-1, width, height, -1, 1.0 );
    }
 
  if(args.check("-fc")){
    string fileName = args.getOption("-fc")->getValue(0);
    vector< FreemanChain<int> > vectFc =  PointListReader< Z2i::Point>:: getFreemanChainsFromFile<int> (fileName); 
    //aBoard <<  SetMode( vectFc.at(0).className(), "InterGrid" );
    aBoard << CustomStyle( vectFc.at(0).className(), 
			   new CustomColors( Color::Red  ,  (filled ? (Color::Black) : (Color::None))  ) );    
    for(unsigned int i=0; i<vectFc.size(); i++){
      aBoard <<  vectFc.at(i) ;
    }
  } 
 

  if( args.check("-sdp") || args.check("-sfp")){
    bool drawPoints= args.check("-drawContourPoint");
    bool invertYaxis = args.check("-invertYaxis");
    
    double pointSize = args.getOption("-drawContourPoint")->getFloatValue(0);
    
    vector<LibBoard::Point> contourPt;
    if(args.check("-sdp")){
      string fileName = args.getOption("-sdp")->getValue(0);
      vector< Z2i::Point >  contour = 
	PointListReader< Z2i::Point >::getPointsFromFile(fileName); 
      for(unsigned int j=0; j<contour.size(); j++){
	LibBoard::Point pt((double)(contour.at(j)[0]),
			   (invertYaxis? (double)(-contour.at(j)[1]+contour.at(0)[1]):(double)(contour.at(j)[1])));
	contourPt.push_back(pt);
	if(drawPoints){
	  aBoard.fillCircle(pt.x, pt.y, pointSize);
	}
      }
    }
    
    if(args.check("-sfp")){
      string fileName = args.getOption("-sfp")->getValue(0);
      vector< PointVector<2,double>  >  contour = 
	PointListReader<  PointVector<2,double>  >::getPointsFromFile(fileName); 
      for(unsigned int j=0; j<contour.size(); j++){
	LibBoard::Point pt((double)(contour.at(j)[0]),
			   (invertYaxis? (double)(-contour.at(j)[1]+contour.at(0)[1]):(double)(contour.at(j)[1])));
	contourPt.push_back(pt);
	if(drawPoints){
	  aBoard.fillCircle(pt.x, pt.y, pointSize);
	}
      }
    }
    aBoard.setPenColor(Color::Red);
    aBoard.setLineStyle (LibBoard::Shape::SolidStyle );
    aBoard.setLineWidth (lineWidth);
    if(!filled){
      aBoard.drawPolyline(contourPt);
    }else{
      aBoard.fillPolyline(contourPt);
    }
    
  
  }

 
  
  if (args.check("-outputSVG")){
    string outputFileName= args.getOption("-outputSVG")->getValue(0);
    aBoard.saveSVG(outputFileName.c_str());
  } else   
    if (args.check("-outputFIG")){
      string outputFileName= args.getOption("-outputFIG")->getValue(0);
      aBoard.saveFIG(outputFileName.c_str());
    } else
      if (args.check("-outputEPS")){
	string outputFileName= args.getOption("-outputEPS")->getValue(0);
	aBoard.saveEPS(outputFileName.c_str());
      }  
#ifdef WITH_CAIRO
      else
	if (args.check("-outputEPS")){
	  string outputFileName= args.getOption("-outputSVG")->getValue(0);
	  aBoard.saveCairo(outputFileName.c_str(),Board2D::CairoEPS );
	} else 
	  if (args.check("-outputPDF")){
	    string outputFileName= args.getOption("-outputPDF")->getValue(0);
	    aBoard.saveCairo(outputFileName.c_str(),Board2D::CairoPDF );
	  } else 
	    if (args.check("-outputPNG")){
	      string outputFileName= args.getOption("-outputPNG")getValue(0);
	      aBoard.saveCairo(outputFileName.c_str(),Board2D::CairoPNG );
	    }
#endif
	    else { //default output
	      string outputFileName= "output.eps";
	      aBoard.saveEPS(outputFileName.c_str());
	    }
  
}