DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX > Class Template Reference

#include <DGtal/math/MPolynomial.h>

Public Types
typedef TRing	Ring
typedef TAlloc	Alloc
typedef TX	X
typedef MPolynomial< 1, Ring, Alloc >	MPoly1

Public Member Functions
	operator X () const
X	operator() () const

Private Member Functions
	MPolynomialEvaluator (const MPoly1 &poly, const X &evalpoint)

Private Attributes
const MPoly1 &	myPoly
	The polynomial in question. More...
const X &	myEvalPoint
	The evaluation point. More...

Friends
class	MPolynomial< 1, TRing, TAlloc >

Detailed Description

template<typename TRing, typename TAlloc, typename TX>
class DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >

The top level polynomial evaluation class, in case n = 1, i.e. does direct evaluation.

This class is a backport from Spielwiese.

Definition at line 345 of file MPolynomial.h.

Member Typedef Documentation

Alloc

template<typename TRing , typename TAlloc , typename TX >

typedef TAlloc DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::Alloc

Definition at line 350 of file MPolynomial.h.

MPoly1

template<typename TRing , typename TAlloc , typename TX >

typedef MPolynomial< 1, Ring, Alloc > DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::MPoly1

Definition at line 352 of file MPolynomial.h.

Ring

template<typename TRing , typename TAlloc , typename TX >

typedef TRing DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::Ring

Definition at line 349 of file MPolynomial.h.

X

template<typename TRing , typename TAlloc , typename TX >

typedef TX DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::X

Definition at line 351 of file MPolynomial.h.

Constructor & Destructor Documentation

MPolynomialEvaluator()

template<typename TRing , typename TAlloc , typename TX >

DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::MPolynomialEvaluator ( const MPoly1 &  poly, const X &  evalpoint  )

inlineprivate

Definition at line 359 of file MPolynomial.h.

      : myPoly( poly ), myEvalPoint( evalpoint )
    {}

Member Function Documentation

operator X()

template<typename TRing , typename TAlloc , typename TX >

DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::operator X ( ) const

inline

Casting to X is done by evaluation in myEvalPoint.

Definition at line 368 of file MPolynomial.h.

    {
      X res = (X) 0;
      X xx = (X) 1;
      for ( int i = 0; i < (int) myPoly.myValue.size(); ++i )
        {
          res += ( (X) (Ring) myPoly.myValue[i] ) * xx;
          xx = xx * myEvalPoint;
        }
      return res;
    }

References DGtal::MPolynomialEvaluator< n, TRing, TAlloc, TX >::myEvalPoint, DGtal::MPolynomialEvaluator< n, TRing, TAlloc, TX >::myPoly, DGtal::MPolynomial< n, TRing, TAlloc >::myValue, and DGtal::IVector< T, TAlloc, usePointers >::size().

operator()()

template<typename TRing , typename TAlloc , typename TX >

X DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::operator() ( ) const

inline

Evaluates and returns value in X.

Definition at line 384 of file MPolynomial.h.

    {
      return (X) (*this);
    }

Friends And Related Function Documentation

MPolynomial< 1, TRing, TAlloc >

template<typename TRing , typename TAlloc , typename TX >

friend class MPolynomial< 1, TRing, TAlloc >

friend

Definition at line 291 of file MPolynomial.h.

Field Documentation

myEvalPoint

template<typename TRing , typename TAlloc , typename TX >

const X& DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::myEvalPoint

private

The evaluation point.

Definition at line 356 of file MPolynomial.h.

myPoly

template<typename TRing , typename TAlloc , typename TX >

const MPoly1& DGtal::MPolynomialEvaluator< 1, TRing, TAlloc, TX >::myPoly

private

The polynomial in question.

Definition at line 355 of file MPolynomial.h.

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The documentation for this class was generated from the following file:

• MPolynomial.h