ClpNetworkMatrix.hpp

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/* $Id: ClpNetworkMatrix.hpp 1665 2011-01-04 17:55:54Z lou $ */
// Copyright (C) 2003, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

#ifndef ClpNetworkMatrix_H
#define ClpNetworkMatrix_H


#include "CoinPragma.hpp"

#include "ClpMatrixBase.hpp"

class ClpNetworkMatrix : public ClpMatrixBase {

public:
     virtual CoinPackedMatrix * getPackedMatrix() const;
     virtual bool isColOrdered() const {
          return true;
     }
     virtual  CoinBigIndex getNumElements() const {
          return 2 * numberColumns_;
     }
     virtual int getNumCols() const {
          return numberColumns_;
     }
     virtual int getNumRows() const {
          return numberRows_;
     }

     virtual const double * getElements() const;
     virtual const int * getIndices() const {
          return indices_;
     }

     virtual const CoinBigIndex * getVectorStarts() const;
     virtual const int * getVectorLengths() const;

     virtual void deleteCols(const int numDel, const int * indDel);
     virtual void deleteRows(const int numDel, const int * indDel);
     virtual void appendCols(int number, const CoinPackedVectorBase * const * columns);
     virtual void appendRows(int number, const CoinPackedVectorBase * const * rows);
#ifndef SLIM_CLP

     virtual int appendMatrix(int number, int type,
                              const CoinBigIndex * starts, const int * index,
                              const double * element, int numberOther = -1);
#endif

     virtual ClpMatrixBase * reverseOrderedCopy() const;
     virtual CoinBigIndex countBasis(
          const int * whichColumn,
          int & numberColumnBasic);
     virtual void fillBasis(ClpSimplex * model,
                            const int * whichColumn,
                            int & numberColumnBasic,
                            int * row, int * start,
                            int * rowCount, int * columnCount,
                            CoinFactorizationDouble * element);
     virtual CoinBigIndex * dubiousWeights(const ClpSimplex * model, int * inputWeights) const;
     virtual void rangeOfElements(double & smallestNegative, double & largestNegative,
                                  double & smallestPositive, double & largestPositive);
     virtual void unpack(const ClpSimplex * model, CoinIndexedVector * rowArray,
                         int column) const ;
     virtual void unpackPacked(ClpSimplex * model,
                               CoinIndexedVector * rowArray,
                               int column) const;
     virtual void add(const ClpSimplex * model, CoinIndexedVector * rowArray,
                      int column, double multiplier) const ;
     virtual void add(const ClpSimplex * model, double * array,
                      int column, double multiplier) const;
     virtual void releasePackedMatrix() const ;
     virtual bool canDoPartialPricing() const;
     virtual void partialPricing(ClpSimplex * model, double start, double end,
                                 int & bestSequence, int & numberWanted);

     virtual void times(double scalar,
                        const double * x, double * y) const;
     virtual void times(double scalar,
                        const double * x, double * y,
                        const double * rowScale,
                        const double * columnScale) const;
     virtual void transposeTimes(double scalar,
                                 const double * x, double * y) const;
     virtual void transposeTimes(double scalar,
                                 const double * x, double * y,
                                 const double * rowScale,
                                 const double * columnScale, double * spare = NULL) const;
     virtual void transposeTimes(const ClpSimplex * model, double scalar,
                                 const CoinIndexedVector * x,
                                 CoinIndexedVector * y,
                                 CoinIndexedVector * z) const;
     virtual void subsetTransposeTimes(const ClpSimplex * model,
                                       const CoinIndexedVector * x,
                                       const CoinIndexedVector * y,
                                       CoinIndexedVector * z) const;

     inline bool trueNetwork() const {
          return trueNetwork_;
     }


     ClpNetworkMatrix();
     ClpNetworkMatrix(int numberColumns, const int * head,
                      const int * tail);
     virtual ~ClpNetworkMatrix();

     ClpNetworkMatrix(const ClpNetworkMatrix&);
     ClpNetworkMatrix(const CoinPackedMatrix&);

     ClpNetworkMatrix& operator=(const ClpNetworkMatrix&);
     virtual ClpMatrixBase * clone() const ;
     ClpNetworkMatrix (const ClpNetworkMatrix & wholeModel,
                       int numberRows, const int * whichRows,
                       int numberColumns, const int * whichColumns);
     virtual ClpMatrixBase * subsetClone (
          int numberRows, const int * whichRows,
          int numberColumns, const int * whichColumns) const ;


protected:
     mutable CoinPackedMatrix * matrix_;
     mutable int * lengths_;
     int * indices_;
     int numberRows_;
     int numberColumns_;
     bool trueNetwork_;

};

#endif