PlToSP.h

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/**************************************************************************
***    
*** Copyright (c) 1995-2000 Regents of the University of California,
***               Andrew E. Caldwell, Andrew B. Kahng and Igor L. Markov
*** Copyright (c) 2000-2004 Regents of the University of Michigan,
***               Saurabh N. Adya, Jarrod A. Roy and Igor L. Markov
***
***  Contact author(s): abk@cs.ucsd.edu, imarkov@umich.edu
***  Original Affiliation:   UCLA, Computer Science Department,
***                          Los Angeles, CA 90095-1596 USA
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#ifndef PLTOSP_H
#define PLTOSP_H

#include <fstream>
#include <vector>
#include <algorithm>
#include <math.h>
#include <stdlib.h>

using namespace std;

namespace parquetfp
{
   enum PL2SP_ALGO{NAIVE_ALGO, TCG_ALGO};

   class Pl2SP
   {
   private:
      vector<double> _xloc;
      vector<double> _yloc;
      vector<double> _widths;
      vector<double> _heights;

      vector<unsigned> _XX;
      vector<unsigned> _YY;

      int _cnt;
   public:
      Pl2SP(vector<double>& xloc, vector<double>& yloc, vector<double>& widths,
            vector<double>& heights, PL2SP_ALGO whichAlgo);

      ~Pl2SP() {}
    
      void naiveAlgo(void);
      void TCGAlgo(void);

      //Floyd Marshal to find TCG
      void TCG_FM(vector< vector <bool> >& TCGMatrixHoriz, 
                  vector< vector <bool> >& TCGMatrixVert);

      //DP to find TCG
      void TCG_DP(vector< vector <bool> >& TCGMatrixHoriz, 
                  vector< vector <bool> >& TCGMatrixVert);
      void TCGDfs(vector< vector <bool> >& TCGMatrix, 
                  vector< vector <bool> >& adjMatrix, int v, 
                  vector<int>& pre);

      const vector<unsigned>& getXSP(void) const
         { return _XX; }
     
      const vector<unsigned>& getYSP(void) const
         { return _YY; }

      void print(void) const;

   };

   struct RowElem
   {
      unsigned index;
      double xloc;
   };


   struct less_mag 
   {
      bool operator()(const RowElem &elem1, const RowElem &elem2) 
         { return(elem1.xloc < elem2.xloc); }
   };

   class SPXRelation
   {
      vector< vector<bool> >& TCGMatrixHoriz;
      vector< vector<bool> >& TCGMatrixVert;

   public:
      SPXRelation(vector< vector<bool> >& TCGMatrixHorizIP, 
                  vector< vector<bool> >& TCGMatrixVertIP) : 
         TCGMatrixHoriz(TCGMatrixHorizIP), TCGMatrixVert(TCGMatrixVertIP)
         {}

      bool operator()(unsigned i, unsigned j) 
         {
            if(TCGMatrixHoriz[i][j] == 1)
               return 1;
            else if(TCGMatrixHoriz[j][i] == 1)
               return 0;
            else if(TCGMatrixVert[j][i] == 1)
               return 1;
            else if(TCGMatrixVert[i][j] == 1)
               return 0;
            else
            {
               //cout<<"ERROR IN PL2SP SPX "<<i<<"\t"<<j<<endl;
               if(i<j)
                  return 1;
               else
                  return 0;
            }
         }
   };

   class SPYRelation
   {
      vector< vector<bool> >& TCGMatrixHoriz;
      vector< vector<bool> >& TCGMatrixVert;

   public:
      SPYRelation(vector< vector<bool> >& TCGMatrixHorizIP, 
                  vector< vector<bool> >& TCGMatrixVertIP) : 
         TCGMatrixHoriz(TCGMatrixHorizIP), TCGMatrixVert(TCGMatrixVertIP)
         {}
      bool operator()(unsigned i, unsigned j) 
         {
            if(TCGMatrixHoriz[i][j] == 1)
               return 1;
            else if(TCGMatrixHoriz[j][i] == 1)
               return 0;
            else if(TCGMatrixVert[j][i] == 1)
               return 0;
            else if(TCGMatrixVert[i][j] == 1)
               return 1;
            else
            {
               //cout<<"ERROR IN PL2SP SPY "<<i<<"\t"<<j<<endl;
               if(i<j)
                  return 1 ;
               else
                  return 0;
            }
         }
   };
}
//using namespace parquetfp;

#endif 

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