This is a helper class for accessing elemental data. More...

#include <Element_accessors.h>

Inheritance diagram for Element_vectors_k_const< Value >:

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Public Types
typedef unsigned int	Size

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

void	set (const Value *p, Element_node_enumerator &ene, int strd)
	initialize the accessor with a pointer and a specific stride. More...

void	set (const Attribute *a, Element_node_enumerator &ene)
	initialize the accessor from an attribute assiciated with a pane. More...

const Value &	operator() (int i, int j) const

const Value &	operator() (int i) const

const Value &	operator[] (int i) const

Protected Attributes
const Attribute *	_attr

union {
int _offset

const Value * _vs

};

Detailed Description

template<class Value>
class Element_vectors_k_const< Value >

This is a helper class for accessing elemental data.

Definition at line 318 of file Element_accessors.h.

Member Typedef Documentation

typedef unsigned int Size

Definition at line 320 of file Element_accessors.h.

Constructor & Destructor Documentation

Element_vectors_k_const ( )

inline

Default constructor.

Definition at line 323 of file Element_accessors.h.

323 : _attr(NULL), _vs(NULL) {}

Element_vectors_k_const::_attr

const Attribute * _attr

Definition: Element_accessors.h:366

Element_vectors_k_const::_vs

const Value * _vs

Definition: Element_accessors.h:369

Member Function Documentation

const Value& operator()	(	int	i,
		int	j
	)		const

inline

Definition at line 350 of file Element_accessors.h.

References Element_vectors_k_const< Value >::_attr, Element_vectors_k_const< Value >::_offset, Element_vectors_k_const< Value >::_vs, COM_assertion, j, and Attribute::size_of_components().

Referenced by Element_vectors_k< Value >::operator()(), Element_vectors_k_const< Value >::operator[](), and Element_vectors_k< Value >::operator[]().

                                                {
     if ( _attr) {
       COM_assertion( _attr->size_of_components()>1);
       const Attribute *aj = _attr+j+1;
       return reinterpret_cast<const Value*>
         (aj->pointer())[_offset*aj->stride()];
     }
     else
       return _vs[j];
   }

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const Value& operator() ( int i ) const

inline

Definition at line 361 of file Element_accessors.h.

References Element_vectors_k_const< Value >::operator()().

Referenced by Element_vectors_k_const< Value >::operator()().

361 { return operator()(i,0); }

Element_vectors_k_const::operator()

const Value & operator()(int i, int j) const

Definition: Element_accessors.h:350

i

blockLoc i

Definition: read.cpp:79

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const Value& operator[] ( int i ) const

inline

Definition at line 363 of file Element_accessors.h.

References Element_vectors_k_const< Value >::operator()().

363 { return operator()(i,0); }

Element_vectors_k_const::operator()

const Value & operator()(int i, int j) const

Definition: Element_accessors.h:350

i

blockLoc i

Definition: read.cpp:79

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void set	(	const Value *	p,
		Element_node_enumerator &	ene,
		int	strd
	)

inline

initialize the accessor with a pointer and a specific stride.

Definition at line 326 of file Element_accessors.h.

References Element_vectors_k_const< Value >::_attr, Element_vectors_k_const< Value >::_vs, and Element_node_enumerator::id().

Referenced by Window_manifold_2::elements_to_nodes(), and Element_vectors_k< Value >::set().

                                                                     {
     _attr = NULL;
     _vs = &p[(ene.id()-1)*strd];
   }

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void set	(	const Attribute *	a,
		Element_node_enumerator &	ene
	)

inline

initialize the accessor from an attribute assiciated with a pane.

Definition at line 332 of file Element_accessors.h.

References Element_vectors_k_const< Value >::_attr, Element_vectors_k_const< Value >::_offset, Element_vectors_k_const< Value >::_vs, COM_assertion, COM_get_sizeof(), Attribute::data_type(), Pane::id(), Element_node_enumerator::id(), Attribute::is_elemental(), Attribute::pane(), Attribute::pointer(), Attribute::size_of_components(), and Attribute::stride().

                                                               {
     COM_assertion( a->is_elemental() && a->pane()->id());
     COM_assertion( sizeof(Value)==COM_get_sizeof( a->data_type(),1));
 
     int ncomp = a->size_of_components();
     int strd = a->stride();
     if ( ncomp<=strd) { 
       const Value *p = reinterpret_cast<const Value*>(a->pointer());
       _attr = NULL; 
       _vs = &p[(ene.id()-1)*strd];
     }
     else {
       _attr = a;
       _offset = ene.id()-1;
     }
   }