Type definition for numerical integration. More...

#include <JQuadrature.hh>

Inheritance diagram for JTOOLS::JQuadrature:

Public Types
typedef JElement2D_t::abscissa_type	abscissa_type

typedef JElement2D_t::ordinate_type	ordinate_type

typedef JElement2D_t	value_type

typedef JDistance< typename JElement2D_t::abscissa_type >	distance_type

typedef JCollection < JElement2D_t, JDistance < typename JElement2D_t::abscissa_type > >	collection_type

typedef std::vector< value_type >	container_type

typedef container_type::const_iterator	const_iterator

typedef container_type::const_reverse_iterator	const_reverse_iterator

typedef container_type::iterator	iterator

typedef container_type::reverse_iterator	reverse_iterator

typedef JCollectionElementTransformer < value_type >	transformer_type

typedef std::pair < const_iterator, bool >	pair_type

typedef JKey_t	key_type

typedef JValue_t	mapped_type

Public Member Functions
	JQuadrature ()
	Default constructor. More...

template<class JFunction_t >
	JQuadrature (const double xmin, const double xmax, const int nx, JFunction_t integral, const double eps=1.0e-4)
	General purpose constructor. More...

virtual void	clear () override
	Clear. More...

virtual const ordinate_type &	get (typename JClass< abscissa_type >::argument_type x) const override
	Get ordinate value. More...

virtual ordinate_type &	get (typename JClass< abscissa_type >::argument_type x) override
	Get ordinate value. More...

virtual const mapped_type &	get (typename JClass< key_type >::argument_type key) const =0
	Get mapped value. More...

virtual mapped_type &	get (typename JClass< key_type >::argument_type key)=0
	Get mapped value. More...

virtual int	getSize () const override
	Get number of elements. More...

virtual abscissa_type	getX (int index) const override
	Get abscissa value. More...

virtual abscissa_type	getXmin () const override
	Get minimal abscissa value. More...

virtual abscissa_type	getXmax () const override
	Get maximal abscissa value. More...

const ordinate_type &	getY (int index) const
	Get ordinate value. More...

ordinate_type &	getY (int index)
	Get ordinate value. More...

void	transform (const transformer_type &transformer)
	Transform collection. More...

void	sort ()
	Sort elements. More...

const_iterator	lower_bound (typename JClass< abscissa_type >::argument_type x) const
	Get first position of element `i`, where `x >= i->getX()`. More...

iterator	lower_bound (typename JClass< abscissa_type >::argument_type x)
	Get first position of element `i`, where `x >= i->getX()`. More...

pair_type	insert (const value_type &element)
	Insert element. More...

void	configure (const JAbstractCollection< abscissa_type > &bounds)
	Configure collection. More...

void	configure (const JAbstractCollection< abscissa_type > &bounds, typename JClass< ordinate_type >::argument_type value)
	Configure collection. More...

void	configure (const JAbstractCollection< abscissa_type > &bounds, const JFunction1D_t &function)
	Configure collection. More...

bool	is_compatible (const JCollection &collection) const
	Test whether collections are compatible. More...

JCollection &	negate ()
	Negate collection. More...

JCollection &	add (const JCollection &collection)
	Add collection. More...

JCollection &	add (typename JClass< ordinate_type >::argument_type value)
	Add offset. More...

JCollection &	add (const JFunction1D_t &function)
	Add function. More...

JCollection &	sub (const JCollection &collection)
	Subtract collection. More...

JCollection &	sub (typename JClass< ordinate_type >::argument_type value)
	Subtract offset. More...

JCollection &	sub (const JFunction1D_t &function)
	Subtract function. More...

JCollection &	mul (const double value)
	Scale contents. More...

JFirst_t &	mul (const JSecond_t &object)
	Multiply with object. More...

JCollection &	div (const double value)
	Scale contents. More...

const JComparator &	getComparator () const
	Get comparator. More...

const mapped_type &	operator[] (typename JClass< key_type >::argument_type key) const
	Get mapped value. More...

mapped_type &	operator[] (typename JClass< key_type >::argument_type key)
	Get mapped value. More...

void	put (typename JClass< key_type >::argument_type key, typename JClass< mapped_type >::argument_type value)
	Put pair-wise element (key,value) into collection. More...

bool	is_equal (const JAbstractCollection &collection) const
	Test whether abstract collections are equal. More...

Public Attributes
JDistance< typename JElement2D_t::abscissa_type >	getDistance
	Function object for distance evaluation. More...

Protected Member Functions
void	resize (typename container_type::size_type size)
	Resize collection. More...

Protected Attributes
JComparator	compare
	Function object for comparison. More...

Detailed Description

Type definition for numerical integration.

$\displaystyle \int_{x_1}^{x_2} f(x) dx = \sum_{i=1}^{N} w_i f(x_i)$

The abscissa and ordinate values of the collection can be used as abscissa and weight values of the summation to approximately determine the integral of the function.

Definition at line 37 of file JQuadrature.hh.

Member Typedef Documentation

typedef JElement2D_t ::abscissa_type JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::abscissa_type

inherited

Definition at line 82 of file JCollection.hh.

typedef JElement2D_t ::ordinate_type JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::ordinate_type

inherited

Definition at line 83 of file JCollection.hh.

typedef JElement2D_t JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::value_type

inherited

Definition at line 84 of file JCollection.hh.

typedef JDistance<typename JElement2D_t ::abscissa_type> JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::distance_type

inherited

Definition at line 85 of file JCollection.hh.

typedef JCollection<JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> > JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::collection_type

inherited

Definition at line 87 of file JCollection.hh.

typedef std::vector<value_type> JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::container_type

inherited

Definition at line 89 of file JCollection.hh.

typedef container_type::const_iterator JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::const_iterator

inherited

Definition at line 91 of file JCollection.hh.

typedef container_type::const_reverse_iterator JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::const_reverse_iterator

inherited

Definition at line 92 of file JCollection.hh.

typedef container_type::iterator JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::iterator

inherited

Definition at line 93 of file JCollection.hh.

typedef container_type::reverse_iterator JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::reverse_iterator

inherited

Definition at line 94 of file JCollection.hh.

typedef JCollectionElementTransformer<value_type> JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::transformer_type

inherited

Definition at line 96 of file JCollection.hh.

typedef std::pair<const_iterator, bool> JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::pair_type

inherited

Definition at line 97 of file JCollection.hh.

template<class JKey_t, class JValue_t>

typedef JKey_t JTOOLS::JMappableCollection< JKey_t, JValue_t >::key_type

inherited

Definition at line 33 of file JMappableCollection.hh.

template<class JKey_t, class JValue_t>

typedef JValue_t JTOOLS::JMappableCollection< JKey_t, JValue_t >::mapped_type

inherited

Definition at line 34 of file JMappableCollection.hh.

Constructor & Destructor Documentation

JTOOLS::JQuadrature::JQuadrature ( )

inline

Default constructor.

Definition at line 44 of file JQuadrature.hh.

45 {}

template<class JFunction_t >

JTOOLS::JQuadrature::JQuadrature	(	const double	xmin,
		const double	xmax,
		const int	nx,
		JFunction_t	integral,
		const double	eps = `1.0e-4`
	)

inline

General purpose constructor.

The template argument should correspond to a function requiring two arguments. These two arguments should correspond to the lower and upper integration limit, respectively. The given function should return the value of the integral between the two integration limits.

Parameters

xmin	minimal x
xmax	maximal x
nx	number of points
integral	integral
eps	precision

Definition at line 62 of file JQuadrature.hh.

     {
       double Xmin = xmin;
       double Xmax = xmax;
 
       const double Vmin = integral(Xmin, Xmax) / (double) nx;
     
       for (int i = 0; i != nx; ++i) {
       
         for (double xmin = Xmin, xmax = Xmax; ; ) {
           
           const double x = 0.5 * (xmin + xmax);
           const double v = integral(Xmin, x);
         
           if (fabs(Vmin - v)    < eps *  Vmin ||
               fabs(xmax - xmin) < eps * (Xmax - Xmin)) {
             
             const double __x = 0.5 * (Xmin + x);
             const double __y = Vmin / integral(__x);
           
             insert(JElement2D_t(__x,__y));
           
             Xmin = x;
             xmax = Xmax;
             
             break;
           }
           
           if (v < Vmin)
             xmin = x;
           else
             xmax = x;
         }
       }
     }

Member Function Documentation

virtual void JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::clear ( )

inlineoverridevirtualinherited

Clear.

Implements JTOOLS::JMappableCollection< JKey_t, JValue_t >.

Definition at line 150 of file JCollection.hh.

     {
       container_type::clear();
     }

virtual const ordinate_type& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::get ( typename JClass< abscissa_type >::argument_type x ) const

inlineoverridevirtualinherited

Get ordinate value.

Parameters

x	abscissa value

Returns: ordinate value

Definition at line 162 of file JCollection.hh.

     {
       const_iterator i = this->lower_bound(x);
 
       if (i == this->end() || this->getDistance(x, i->getX()) > distance_type::precision) {
         THROW(JValueOutOfRange, "Invalid abscissa value " << x);
       }
 
       return i->getY();
     }

virtual ordinate_type& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::get ( typename JClass< abscissa_type >::argument_type x )

inlineoverridevirtualinherited

Get ordinate value.

Parameters

x	abscissa value

Returns: ordinate value

Definition at line 180 of file JCollection.hh.

     {
       iterator i = this->lower_bound(x);
 
       if (i == this->end() || this->getDistance(x, i->getX()) > distance_type::precision) {
         i = container_type::insert(i, value_type(x, ordinate_type()));
       }
 
       return i->getY();
     }

template<class JKey_t, class JValue_t>

virtual const mapped_type& JTOOLS::JMappableCollection< JKey_t, JValue_t >::get ( typename JClass< key_type >::argument_type key ) const

pure virtualinherited

Get mapped value.

Parameters

key key

Returns: value

template<class JKey_t, class JValue_t>

virtual mapped_type& JTOOLS::JMappableCollection< JKey_t, JValue_t >::get ( typename JClass< key_type >::argument_type key )

pure virtualinherited

Get mapped value.

Parameters

key key

Returns: value

virtual int JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::getSize ( ) const

inlineoverridevirtualinherited

Get number of elements.

Returns: number of elements

Implements JTOOLS::JAbstractCollection< JAbscissa_t >.

Definition at line 197 of file JCollection.hh.

     {
       return (int) this->size();
     }

virtual abscissa_type JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::getX ( int index ) const

inlineoverridevirtualinherited

Get abscissa value.

Parameters

index index

Returns: abscissa value

Implements JTOOLS::JAbstractCollection< JAbscissa_t >.

Definition at line 209 of file JCollection.hh.

     {
       return this->at(index).getX();
     }

virtual abscissa_type JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::getXmin ( ) const

inlineoverridevirtualinherited

Get minimal abscissa value.

Returns: abscissa value

Implements JTOOLS::JAbstractCollection< JAbscissa_t >.

Definition at line 220 of file JCollection.hh.

     {
       return this->begin()->getX();
     }

virtual abscissa_type JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::getXmax ( ) const

inlineoverridevirtualinherited

Get maximal abscissa value.

Returns: abscissa value

Implements JTOOLS::JAbstractCollection< JAbscissa_t >.

Definition at line 231 of file JCollection.hh.

     {
       return this->rbegin()->getX();
     }

const ordinate_type& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::getY ( int index ) const

inlineinherited

Get ordinate value.

Parameters

index index

Returns: ordinate value

Definition at line 244 of file JCollection.hh.

     {
       return this->at(index).getY();
     }

ordinate_type& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::getY ( int index )

inlineinherited

Get ordinate value.

Parameters

index index

Returns: ordinate value

Definition at line 256 of file JCollection.hh.

     {
       return this->at(index).getY();
     }

void JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::transform ( const transformer_type & transformer )

inlineinherited

Transform collection.

Parameters

transformer element transformer

Definition at line 267 of file JCollection.hh.

     {
       collection_type buffer;
 
       this->swap(buffer);
 
       for (const_iterator i = buffer.begin(); i != buffer.end(); ++i) {
         this->insert(transformer(*i));
       }
     }

void JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::sort ( )

inlineinherited

Sort elements.

Definition at line 282 of file JCollection.hh.

     {
       std::sort(this->begin(), this->end(), compare);
     }

const_iterator JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::lower_bound ( typename JClass< abscissa_type >::argument_type x ) const

inlineinherited

Get first position of element i, where x >= i->getX().

Parameters

x	abscissa value

Returns: position of corresponding element

Definition at line 294 of file JCollection.hh.

     {
       return std::lower_bound(this->begin(), this->end(), x, compare);
     }

iterator JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::lower_bound ( typename JClass< abscissa_type >::argument_type x )

inlineinherited

Get first position of element i, where x >= i->getX().

Parameters

x	abscissa value

Returns: position of corresponding element

Definition at line 306 of file JCollection.hh.

     {
       return std::lower_bound(this->begin(), this->end(), x, compare);
     }

pair_type JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::insert ( const value_type & element )

inlineinherited

Insert element.

Parameters

element element

Returns: (iterator, status), where status is true if inserted; else false

Definition at line 318 of file JCollection.hh.

     {
       iterator i = this->lower_bound(element.getX());
 
       if (i == this->end() || this->getDistance(element.getX(), i->getX()) > 0.0)
         return pair_type(container_type::insert(i, element), true);
       else
         return pair_type(this->end(), false);
     }

void JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::configure ( const JAbstractCollection< abscissa_type > & bounds )

inlineinherited

Configure collection.

Parameters

bounds abscissa values

Definition at line 334 of file JCollection.hh.

     {
       configure(bounds, JMATH::getZero<ordinate_type>());
     }

void JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::configure	(	const JAbstractCollection< abscissa_type > &	bounds,
		typename JClass< ordinate_type >::argument_type	value
	)

inlineinherited

Configure collection.

Parameters

bounds	abscissa values
value	ordinate value

Definition at line 346 of file JCollection.hh.

     {
       this->resize(bounds.getSize());
 
       for (iterator i = this->begin(); i != this->end(); ++i) {
 
         const abscissa_type x = bounds.getX(std::distance(this->begin(),i));
 
         *i = value_type(x,value);
       }
     }

void JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::configure	(	const JAbstractCollection< abscissa_type > &	bounds,
		const JFunction1D_t &	function
	)

inlineinherited

Configure collection.

Parameters

bounds	abscissa values
function	function

Definition at line 367 of file JCollection.hh.

     {
       using namespace JLANG;
 
       collection_type* out = (is_identical(*this, function) ? new collection_type() : this);
 
       for (int i = 0; i != bounds.getSize(); ++i) {
 
         const abscissa_type x = bounds.getX(i);
 
         out->put(x, function(x));
       }
 
       if (is_identical(*this, function)) {
         
         this->swap(*out);
 
         delete out;
       }
     }

bool JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::is_compatible ( const JCollection< JElement2D_t > & collection ) const

inlineinherited

Test whether collections are compatible.

Parameters

collection collection

Returns: true if collections are compatible; else false

Definition at line 396 of file JCollection.hh.

     {
       if (this->empty() || collection.empty()) {
 
         return true;
 
       } else {
 
         const double precision = JDistance<abscissa_type>::precision;
         
         const_iterator p = this->begin();
         const_iterator q = collection.begin();
         
         if        (getDistance(p->getX(), q->getX()) > precision) { 
 
           do { 
             ++p; 
           } while (p != this->end()      && getDistance(p->getX(), q->getX()) > precision); 
 
         } else if (getDistance(q->getX(), p->getX()) > precision) { 
 
           do { 
             ++q; 
           } while (q != collection.end() && getDistance(q->getX(), p->getX()) > precision); 
         }
 
         for ( ; p != this->end() && q != collection.end(); ++p, ++q) {
           if (fabs(getDistance(p->getX(), q->getX())) > precision) {
             return false;
           }
         }
 
         return true;
       }
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::negate ( )

inlineinherited

Negate collection.

Returns: this collection

Definition at line 438 of file JCollection.hh.

     {
       for (iterator i = this->begin(); i != this->end(); ++i) {
         i->getY() = -i->getY();
       }
 
       return *this;
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::add ( const JCollection< JElement2D_t > & collection )

inlineinherited

Add collection.

Parameters

collection collection

Returns: this collection

Definition at line 454 of file JCollection.hh.

     {
       if (!collection.empty()) {
 
         if (this->empty()) {
 
           for (const_iterator i = collection.begin(); i != collection.end(); ++i) {
             this->put(i->getX(), +i->getY());
           }
 
         } else if (this->is_compatible(collection)) {
 
           const double precision = JDistance<abscissa_type>::precision;
 
           iterator       p = this->begin();
           const_iterator q = collection.begin();
 
           if        (getDistance(p->getX(), q->getX()) > precision) { 
 
             do {
               ++p; 
             } while (p != this->end()      && getDistance(p->getX(), q->getX()) > precision); 
 
           } else if (getDistance(q->getX(), p->getX()) > precision) { 
 
             do { 
               ++q; 
             } while (q != collection.end() && getDistance(q->getX(), p->getX()) > precision); 
           }
 
           const_iterator i = q;
 
           for ( ; p != this->end() && i != collection.end(); ++p, ++i) {
             p->getY() += i->getY();
           }
 
           for ( ; i != collection.end(); ++i) {
             this->put(i->getX(), +i->getY());
           }
 
           for (i = collection.begin(); i != q; ++i) {
             this->put(i->getX(), +i->getY());
           }
         }
       }
       
       return *this;
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::add ( typename JClass< ordinate_type >::argument_type value )

inlineinherited

Add offset.

Parameters

value offset

Returns: this collection

Definition at line 602 of file JCollection.hh.

     {
       for (iterator i = this->begin(); i != this->end(); ++i) {
         i->getY() += value;
       }
 
       return *this;
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::add ( const JFunction1D_t & function )

inlineinherited

Add function.

Parameters

function function

Returns: this collection

Definition at line 635 of file JCollection.hh.

     {
       for (iterator i = this->begin(); i != this->end(); ++i) {
         i->getY() += function(i->getX());
       }
 
       return *this;
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::sub ( const JCollection< JElement2D_t > & collection )

inlineinherited

Subtract collection.

Parameters

collection collection

Returns: this collection

Definition at line 510 of file JCollection.hh.

     {
       if (!collection.empty()) {
 
         if (this->empty()) {
 
           for (const_iterator i = collection.begin(); i != collection.end(); ++i) {
             this->put(i->getX(), -i->getY());
           }
 
         } else if (this->is_compatible(collection)) {
 
           const double precision = JDistance<abscissa_type>::precision;
 
           iterator       p = this->begin();
           const_iterator q = collection.begin();
 
           if        (getDistance(p->getX(), q->getX()) > precision) { 
 
             do {
               ++p; 
             } while (p != this->end()      && getDistance(p->getX(), q->getX()) > precision); 
 
           } else if (getDistance(q->getX(), p->getX()) > precision) { 
 
             do { 
               ++q; 
             } while (q != collection.end() && getDistance(q->getX(), p->getX()) > precision); 
           }
 
           const_iterator i = q;
 
           for ( ; p != this->end() && i != collection.end(); ++p, ++i) {
             p->getY() -= i->getY();
           }
 
           for ( ; i != collection.end(); ++i) {
             this->put(i->getX(), -i->getY());
           }
 
           for (i = collection.begin(); i != q; ++i) {
             this->put(i->getX(), -i->getY());
           }
 
         } else {
 
           throw JException("JCollection::add() collections incompatible.");
         }
       }
       
       return *this;
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::sub ( typename JClass< ordinate_type >::argument_type value )

inlineinherited

Subtract offset.

Parameters

value offset

Returns: this collection

Definition at line 618 of file JCollection.hh.

     {
       for (iterator i = this->begin(); i != this->end(); ++i) {
         i->getY() -= value;
       }
 
       return *this;
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::sub ( const JFunction1D_t & function )

inlineinherited

Subtract function.

Parameters

function function

Returns: this collection

Definition at line 652 of file JCollection.hh.

     {
       for (iterator i = this->begin(); i != this->end(); ++i) {
         i->getY() -= function(i->getX());
       }
 
       return *this;
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::mul ( const double value )

inlineinherited

Scale contents.

Parameters

value multiplication factor

Returns: this collection

Definition at line 570 of file JCollection.hh.

     {
       for (iterator i = this->begin(); i != this->end(); ++i) {
         i->getY() *= value;
       }
 
       return *this;
     }

template<class JFirst_t, class JSecond_t = JNullType>

JFirst_t& JMATH::JMath< JFirst_t, JSecond_t >::mul ( const JSecond_t & object )

inlineinherited

Multiply with object.

Parameters

object object

Returns: result object

Definition at line 357 of file JMath.hh.

     {
       return static_cast<JFirst_t&>(*this) = JCalculator<JFirst_t>::calculator.mul(static_cast<const JFirst_t&>(*this), object);
     }

JCollection& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::div ( const double value )

inlineinherited

Scale contents.

Parameters

value division factor

Returns: this collection

Definition at line 586 of file JCollection.hh.

     {
       for (iterator i = this->begin(); i != this->end(); ++i) {
         i->getY() /= value;
       }
 
       return *this;
     }

const JComparator& JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::getComparator ( ) const

inlineinherited

Get comparator.

Returns: comparator

Definition at line 765 of file JCollection.hh.

     {
       return compare;
     }

void JTOOLS::JCollection< JElement2D_t , JDistance<typename JElement2D_t ::abscissa_type> >::resize ( typename container_type::size_type size )

inlineprotectedinherited

Resize collection.

Parameters

size size

Definition at line 789 of file JCollection.hh.

     {
       container_type::resize(size);
     }

template<class JKey_t, class JValue_t>

const mapped_type& JTOOLS::JMappableCollection< JKey_t, JValue_t >::operator[] ( typename JClass< key_type >::argument_type key ) const

inlineinherited

Get mapped value.

Parameters

key key

Returns: value

Definition at line 73 of file JMappableCollection.hh.

     {
       return get(key);
     }

template<class JKey_t, class JValue_t>

mapped_type& JTOOLS::JMappableCollection< JKey_t, JValue_t >::operator[] ( typename JClass< key_type >::argument_type key )

inlineinherited

Get mapped value.

Parameters

key key

Returns: value

Definition at line 85 of file JMappableCollection.hh.

     {
       return get(key);
     }

template<class JKey_t, class JValue_t>

void JTOOLS::JMappableCollection< JKey_t, JValue_t >::put	(	typename JClass< key_type >::argument_type	key,
		typename JClass< mapped_type >::argument_type	value
	)

inlineinherited

Put pair-wise element (key,value) into collection.

Parameters

key	key
value	value

Definition at line 97 of file JMappableCollection.hh.

     {
       get(key) = value;
     }

template<class JAbscissa_t>

bool JTOOLS::JAbstractCollection< JAbscissa_t >::is_equal ( const JAbstractCollection< JAbscissa_t > & collection ) const

inlineinherited

Test whether abstract collections are equal.

Parameters

collection abstract collection

Returns: true if collections are equals; else false

Definition at line 69 of file JAbstractCollection.hh.

     {
       if (this->getSize() == collection.getSize()) {
 
         for (int i = 0; i != this->getSize(); ++i) {
 
           if (this->getX(i) != collection.getX(i)) {
             return false;
           }
         }
 
         return true;
       }
 
       return false;
     }