---

FDiagonalMatrix.hpp

#ifndef __FDiagonalMatrix_H__
#define __FDiagonalMatrix_H__


#include <stdio.h>
#include "FloatVector.hpp"
#include "FloatVectorT.hpp"

#include "AFSymMatrix.hpp"

class FDiagonalMatrix : public AFSymMatrix
{
private:
        
int                             N;
FloatVector*            d;                                      // N size diagonal

public:
        
FDiagonalMatrix(int asize, float val=0.0);
FDiagonalMatrix(const FDiagonalMatrix& v);
FDiagonalMatrix operator=(const FDiagonalMatrix& v);

virtual ~FDiagonalMatrix(){ delete d;}

virtual AFloatMatrix* copy(){return new FDiagonalMatrix(*this);}
virtual AFloatMatrix* t(AFloatMatrix* result=0){return copy();}

virtual FloatVector* solve(FloatVector* b, FloatVector* x=0);
virtual AFSymMatrix* invert();

void load(FDiagonalMatrix* m);
void load(FloatVector* d1);

virtual int size()const { return (N); }

FloatVector* getDvalues(){ return d; }

// base 0
virtual void set0(int i, int j, float value);
virtual float get0(int i, int j);

inline void setD0(int i, float value){ d->set0(i, value); }
inline float getD0(int i) const{ return d->get0(i); }

// base 1
virtual void set(int i, int j, float value);
virtual float get(int i, int j) ;

inline void setD(int i, float value){ d->set(i, value); }
inline float getD(int i) const{ return d->get(i); }

// computations

virtual void setAll(float value=0.0){ d->setAll(value); }

virtual float det();
virtual float trace();

virtual float norme2();
virtual float sum();

virtual float minimum();
virtual float maximum();
virtual float sigma();

// scalar single operations
void operator*=(float value);
void operator/=(float value);

virtual void add(float value){}
virtual void subst(float value){}
virtual void mult(float value);
virtual void div(float value);

// vector single operations
void operator+=(const FDiagonalMatrix& m);
void operator-=(const FDiagonalMatrix& m);

virtual void add(AFloatMatrix& m){}
virtual void subst(AFloatMatrix& m){}

// u= A*v including implicit transposition
FloatVector* mult_Av(FloatVector* v, FloatVector* result=0);
FloatVector* mult_ATv(FloatVector* v, FloatVector* result=0){ return mult_Av(v, result); }
// u= v*A
FloatVector* mult_vA(FloatVector* v, FloatVector* result=0)     { return mult_Av(v, result); }
FloatVector* mult_vAT(FloatVector* vt, FloatVector* result=0){ return mult_Av(vt, result); }

// sub vector usage
// u= A*v
FloatVector* mult_Av(FloatVector* v, int col0, int row0, bool incremental=false, FloatVector* result=0);
FloatVector* mult_ATv(FloatVector* v, int col0, int row0, bool incremental=false, FloatVector* result=0)
                        { return mult_Av(v, col0, row0, incremental, result); }
// u= v*A
FloatVector* mult_vA(FloatVector* v, int row0, int col0, bool incremental=false, FloatVector* result=0)
                        { return mult_Av(v, col0, row0, incremental, result); }
FloatVector* mult_vAT(FloatVector* vt, int row0, int col0, bool incremental=false, FloatVector* result=0)
                        { return mult_Av(vt, col0, row0, incremental, result); }

// friends
friend FloatVectorT operator*(const FloatVectorT& vt, const FDiagonalMatrix& m);        
friend FloatVector operator*(const FDiagonalMatrix& m, const FloatVector& v);   

virtual void output();
virtual void output(FILE* file);
};

#endif


         

Restoreinpaint sourceforge project `C++/Java Image Processing, Restoration, Inpainting Project'.

Bernard De Cuyper: Open Project Leader: Concept, design and development. Bernard De Cuyper & Eddy Fraiha 2002, 2003. Bernard De Cuyper 2004. Open and free, for friendly usage only. Modifications on Belgium ground of this piece of artistic work, by governement institutions or companies, must be notified to Bernard De Cuyper.