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# /home/coin/svn-release/Alps-1.4.8/Clp/src/ClpPlusMinusOneMatrix.hpp

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    00001 /* $Id: ClpPlusMinusOneMatrix.hpp 1665 2011-01-04 17:55:54Z lou $ */
    00002 // Copyright (C) 2003, International Business Machines
    00003 // Corporation and others.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005
    00006 #ifndef ClpPlusMinusOneMatrix_H
    00007 #define ClpPlusMinusOneMatrix_H
    00008
    00009
    00010 #include "CoinPragma.hpp"
    00011
    00012 #include "ClpMatrixBase.hpp"
    00013
    00018 class ClpPlusMinusOneMatrix : public ClpMatrixBase {
    00019
    00020 public:
    00023
    00024      virtual CoinPackedMatrix * getPackedMatrix() const;
    00026      virtual bool isColOrdered() const ;
    00028      virtual  CoinBigIndex getNumElements() const;
    00030      virtual int getNumCols() const {
    00031           return numberColumns_;
    00032      }
    00034      virtual int getNumRows() const {
    00035           return numberRows_;
    00036      }
    00037
    00042      virtual const double * getElements() const;
    00048      virtual const int * getIndices() const {
    00049           return indices_;
    00050      }
    00051      // and for advanced use
    00052      int * getMutableIndices() const {
    00053           return indices_;
    00054      }
    00055
    00056      virtual const CoinBigIndex * getVectorStarts() const;
    00058      virtual const int * getVectorLengths() const;
    00059
    00061      virtual void deleteCols(const int numDel, const int * indDel);
    00063      virtual void deleteRows(const int numDel, const int * indDel);
    00065      virtual void appendCols(int number, const CoinPackedVectorBase * const * columns);
    00067      virtual void appendRows(int number, const CoinPackedVectorBase * const * rows);
    00068 #ifndef SLIM_CLP
    00069
    00073      virtual int appendMatrix(int number, int type,
    00074                               const CoinBigIndex * starts, const int * index,
    00075                               const double * element, int numberOther = -1);
    00076 #endif
    00077
    00078      virtual ClpMatrixBase * reverseOrderedCopy() const;
    00080      virtual CoinBigIndex countBasis(
    00081           const int * whichColumn,
    00082           int & numberColumnBasic);
    00084      virtual void fillBasis(ClpSimplex * model,
    00085                             const int * whichColumn,
    00086                             int & numberColumnBasic,
    00087                             int * row, int * start,
    00088                             int * rowCount, int * columnCount,
    00089                             CoinFactorizationDouble * element);
    00094      virtual CoinBigIndex * dubiousWeights(const ClpSimplex * model, int * inputWeights) const;
    00098      virtual void rangeOfElements(double & smallestNegative, double & largestNegative,
    00099                                   double & smallestPositive, double & largestPositive);
    00102      virtual void unpack(const ClpSimplex * model, CoinIndexedVector * rowArray,
    00103                          int column) const ;
    00108      virtual void unpackPacked(ClpSimplex * model,
    00109                                CoinIndexedVector * rowArray,
    00110                                int column) const;
    00113      virtual void add(const ClpSimplex * model, CoinIndexedVector * rowArray,
    00114                       int column, double multiplier) const ;
    00116      virtual void add(const ClpSimplex * model, double * array,
    00117                       int column, double multiplier) const;
    00119      virtual void releasePackedMatrix() const;
    00125      virtual void setDimensions(int numrows, int numcols);
    00127      void checkValid(bool detail) const;
    00129
    00135      virtual void times(double scalar,
    00136                         const double * x, double * y) const;
    00138      virtual void times(double scalar,
    00139                         const double * x, double * y,
    00140                         const double * rowScale,
    00141                         const double * columnScale) const;
    00145      virtual void transposeTimes(double scalar,
    00146                                  const double * x, double * y) const;
    00148      virtual void transposeTimes(double scalar,
    00149                                  const double * x, double * y,
    00150                                  const double * rowScale,
    00151                                  const double * columnScale, double * spare = NULL) const;
    00156      virtual void transposeTimes(const ClpSimplex * model, double scalar,
    00157                                  const CoinIndexedVector * x,
    00158                                  CoinIndexedVector * y,
    00159                                  CoinIndexedVector * z) const;
    00165      virtual void transposeTimesByRow(const ClpSimplex * model, double scalar,
    00166                                       const CoinIndexedVector * x,
    00167                                       CoinIndexedVector * y,
    00168                                       CoinIndexedVector * z) const;
    00172      virtual void subsetTransposeTimes(const ClpSimplex * model,
    00173                                        const CoinIndexedVector * x,
    00174                                        const CoinIndexedVector * y,
    00175                                        CoinIndexedVector * z) const;
    00178      virtual bool canCombine(const ClpSimplex * model,
    00179                              const CoinIndexedVector * pi) const;
    00181      virtual void transposeTimes2(const ClpSimplex * model,
    00182                                   const CoinIndexedVector * pi1, CoinIndexedVector * dj1,
    00183                                   const CoinIndexedVector * pi2,
    00184                                   CoinIndexedVector * spare,
    00185                                   double referenceIn, double devex,
    00186                                   // Array for exact devex to say what is in reference framework
    00187                                   unsigned int * reference,
    00188                                   double * weights, double scaleFactor);
    00190      virtual void subsetTimes2(const ClpSimplex * model,
    00191                                CoinIndexedVector * dj1,
    00192                                const CoinIndexedVector * pi2, CoinIndexedVector * dj2,
    00193                                double referenceIn, double devex,
    00194                                // Array for exact devex to say what is in reference framework
    00195                                unsigned int * reference,
    00196                                double * weights, double scaleFactor);
    00198
    00201
    00202      inline CoinBigIndex * startPositive() const {
    00203           return startPositive_;
    00204      }
    00206      inline CoinBigIndex * startNegative() const {
    00207           return startNegative_;
    00208      }
    00210
    00211
    00215      ClpPlusMinusOneMatrix();
    00217      virtual ~ClpPlusMinusOneMatrix();
    00219
    00223      ClpPlusMinusOneMatrix(const ClpPlusMinusOneMatrix&);
    00230      ClpPlusMinusOneMatrix(const CoinPackedMatrix&);
    00232      ClpPlusMinusOneMatrix(int numberRows, int numberColumns,
    00233                            bool columnOrdered, const int * indices,
    00234                            const CoinBigIndex * startPositive, const CoinBigIndex * startNegative);
    00237      ClpPlusMinusOneMatrix (const ClpPlusMinusOneMatrix & wholeModel,
    00238                             int numberRows, const int * whichRows,
    00239                             int numberColumns, const int * whichColumns);
    00240
    00241      ClpPlusMinusOneMatrix& operator=(const ClpPlusMinusOneMatrix&);
    00243      virtual ClpMatrixBase * clone() const ;
    00246      virtual ClpMatrixBase * subsetClone (
    00247           int numberRows, const int * whichRows,
    00248           int numberColumns, const int * whichColumns) const ;
    00250      void passInCopy(int numberRows, int numberColumns,
    00251                      bool columnOrdered, int * indices,
    00252                      CoinBigIndex * startPositive, CoinBigIndex * startNegative);
    00254      virtual bool canDoPartialPricing() const;
    00256      virtual void partialPricing(ClpSimplex * model, double start, double end,
    00257                                  int & bestSequence, int & numberWanted);
    00259
    00260
    00261 protected:
    00265
    00266      mutable CoinPackedMatrix * matrix_;
    00267      mutable int * lengths_;
    00269      CoinBigIndex * startPositive_;
    00271      CoinBigIndex * startNegative_;
    00273      int * indices_;
    00275      int numberRows_;
    00277      int numberColumns_;
    00279      bool columnOrdered_;
    00280
    00282 };
    00283
    00284 #endif