00001
00002
00003 #ifndef ClpNetworkMatrix_H
00004 #define ClpNetworkMatrix_H
00005
00006
00007 #include "CoinPragma.hpp"
00008
00009 #include "ClpMatrixBase.hpp"
00010
00016 class ClpNetworkMatrix : public ClpMatrixBase {
00017
00018 public:
00021
00022 virtual CoinPackedMatrix * getPackedMatrix() const;
00024 virtual bool isColOrdered() const { return true; }
00026 virtual CoinBigIndex getNumElements() const
00027 { return 2*numberColumns_; }
00029 virtual int getNumCols() const { return numberColumns_; }
00031 virtual int getNumRows() const { return numberRows_; };
00032
00037 virtual const double * getElements() const;
00043 virtual const int * getIndices() const
00044 { return indices_;};
00045
00046 virtual const CoinBigIndex * getVectorStarts() const;
00048 virtual const int * getVectorLengths() const;
00049
00051 virtual void deleteCols(const int numDel, const int * indDel);
00053 virtual void deleteRows(const int numDel, const int * indDel);
00055 virtual ClpMatrixBase * reverseOrderedCopy() const;
00058 virtual CoinBigIndex fillBasis(ClpSimplex * model,
00059 const int * whichColumn,
00060 int numberRowBasic,
00061 int & numberColumnBasic,
00062 int * row, int * column,
00063 double * element) ;
00068 virtual CoinBigIndex * dubiousWeights(const ClpSimplex * model,int * inputWeights) const;
00072 virtual void rangeOfElements(double & smallestNegative, double & largestNegative,
00073 double & smallestPositive, double & largestPositive);
00076 virtual void unpack(const ClpSimplex * model,CoinIndexedVector * rowArray,
00077 int column) const ;
00082 virtual void unpackPacked(ClpSimplex * model,
00083 CoinIndexedVector * rowArray,
00084 int column) const;
00087 virtual void add(const ClpSimplex * model,CoinIndexedVector * rowArray,
00088 int column, double multiplier) const ;
00090 virtual void add(const ClpSimplex * model,double * array,
00091 int column, double multiplier) const;
00093 virtual void releasePackedMatrix() const ;
00095 virtual bool canDoPartialPricing() const;
00097 virtual void partialPricing(ClpSimplex * model, double start, double end,
00098 int & bestSequence, int & numberWanted);
00100
00106 virtual void times(double scalar,
00107 const double * x, double * y) const;
00109 virtual void times(double scalar,
00110 const double * x, double * y,
00111 const double * rowScale,
00112 const double * columnScale) const;
00116 virtual void transposeTimes(double scalar,
00117 const double * x, double * y) const;
00119 virtual void transposeTimes(double scalar,
00120 const double * x, double * y,
00121 const double * rowScale,
00122 const double * columnScale) const;
00127 virtual void transposeTimes(const ClpSimplex * model, double scalar,
00128 const CoinIndexedVector * x,
00129 CoinIndexedVector * y,
00130 CoinIndexedVector * z) const;
00135 virtual void subsetTransposeTimes(const ClpSimplex * model,
00136 const CoinIndexedVector * x,
00137 const CoinIndexedVector * y,
00138 CoinIndexedVector * z) const;
00140
00143
00144 inline bool trueNetwork() const
00145 { return trueNetwork_;};
00147
00148
00152 ClpNetworkMatrix();
00154 ClpNetworkMatrix(int numberColumns, const int * head,
00155 const int * tail);
00157 virtual ~ClpNetworkMatrix();
00159
00163 ClpNetworkMatrix(const ClpNetworkMatrix&);
00165 ClpNetworkMatrix(const CoinPackedMatrix&);
00166
00167 ClpNetworkMatrix& operator=(const ClpNetworkMatrix&);
00169 virtual ClpMatrixBase * clone() const ;
00171
00172
00173 protected:
00177
00178 mutable double * elements_;
00179 mutable CoinBigIndex * starts_;
00180 mutable int * lengths_;
00182 int * indices_;
00184 int numberRows_;
00186 int numberColumns_;
00188 bool trueNetwork_;
00189
00191 };
00192
00193 #endif