MnPlot.cxx

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// @(#)root/minuit2:$Id$
// Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005

/**********************************************************************
 *                                                                    *
 * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
 *                                                                    *
 **********************************************************************/

#include "Minuit2/MnPlot.h"

namespace ROOT {

   namespace Minuit2 {


void mnplot(double* xpt, double* ypt, char* chpt, int nxypt, int npagwd, int npagln);

void MnPlot::operator()(const std::vector<std::pair<double,double> >& points) const {
   // call routine from Fortran minuit (mnplot) to plot the vector of (x,y) points
   std::vector<double> x; x.reserve(points.size());
   std::vector<double> y; y.reserve(points.size());
   std::vector<char> chpt; chpt.reserve(points.size());

   for(std::vector<std::pair<double,double> >::const_iterator ipoint = points.begin(); ipoint != points.end(); ++ipoint) {
      x.push_back((*ipoint).first);
      y.push_back((*ipoint).second);
      chpt.push_back('*');
   }

   mnplot(&(x.front()), &(y.front()), &(chpt.front()), points.size(), Width(), Length());

}

void MnPlot::operator()(double xmin, double ymin, const std::vector<std::pair<double,double> >& points) const {
   // call routine from Fortran minuit (mnplot) to plot the vector of (x,y) points + minimum values
   std::vector<double> x; x.reserve(points.size()+2);
   x.push_back(xmin);
   x.push_back(xmin);
   std::vector<double> y; y.reserve(points.size()+2);
   y.push_back(ymin);
   y.push_back(ymin);
   std::vector<char> chpt; chpt.reserve(points.size()+2);
   chpt.push_back(' ');
   chpt.push_back('X');

   for(std::vector<std::pair<double,double> >::const_iterator ipoint = points.begin(); ipoint != points.end(); ++ipoint) {
      x.push_back((*ipoint).first);
      y.push_back((*ipoint).second);
      chpt.push_back('*');
   }

   mnplot(&(x.front()), &(y.front()), &(chpt.front()), points.size()+2, Width(), Length());
}

   }  // namespace Minuit2

}  // namespace ROOT