#include <SMDS_IteratorOfElements.hxx>

Inheritance diagram for SMDS_IteratorOfElements:

Public Member Functions
	SMDS_IteratorOfElements (const SMDS_MeshElement *element, SMDSAbs_ElementType type, const SMDS_ElemIteratorPtr &it)
	Create an iterator which look for elements of type type which are linked to the element element.
bool	more ()
	Return true if and only if there are other object in this iterator.
const SMDS_MeshElement *	next ()
	Return the current object and step to the next one.
virtual void	remove ()
	Delete the current element and step to the next one.
Private Member Functions
bool	subMore ()
const SMDS_MeshElement *	subNext ()
Private Attributes
SMDS_ElemIteratorPtr	t2Iterator
SMDS_ElemIteratorPtr	t1Iterator
SMDSAbs_ElementType	myType
const SMDS_MeshElement *	myProxyElement
const SMDS_MeshElement *	myElement
bool	myReverseIteration
std::set< const SMDS_MeshElement * >	alreadyReturnedElements
std::set< const SMDS_MeshElement * >::iterator	itAlreadyReturned

Detailed Description

Definition at line 32 of file SMDS_IteratorOfElements.hxx.

Constructor & Destructor Documentation

SMDS_IteratorOfElements::SMDS_IteratorOfElements	(	const SMDS_MeshElement *	element,
		SMDSAbs_ElementType	type,
		const SMDS_ElemIteratorPtr &	it
	)

Create an iterator which look for elements of type type which are linked to the element element.

it is the iterator to get connectivity of element

Definition at line 57 of file SMDS_IteratorOfElements.cxx.

References alreadyReturnedElements, SMDS_MeshElement.GetType(), itAlreadyReturned, myElement, myReverseIteration, SMDSAbs_Edge, SMDSAbs_Face, SMDSAbs_Node, SMDSAbs_Volume, subMore(), and subNext().

     : t1Iterator(it),
       t2Iterator(SMDS_ElemIteratorPtr((SMDS_ElemIterator*)NULL)),
       myType(type), myElement(element),
       myProxyElement(NULL)
{
        while(subMore())
                alreadyReturnedElements.insert(subNext());
        itAlreadyReturned= alreadyReturnedElements.begin();
        switch(myElement->GetType())
        {
        case SMDSAbs_Node: 
        case SMDSAbs_Edge: myReverseIteration=true; break;
        case SMDSAbs_Face: myReverseIteration=(type==SMDSAbs_Volume); break;
        default: myReverseIteration=false;
        }       
}

Member Function Documentation

bool SMDS_IteratorOfElements::more ( ) [virtual]

Return true if and only if there are other object in this iterator.

Implements SMDS_Iterator< const SMDS_MeshElement * >.

Definition at line 77 of file SMDS_IteratorOfElements.cxx.

References alreadyReturnedElements, SMDS_MeshElement.elementsIterator(), SMDS_MeshElement.GetType(), itAlreadyReturned, myElement, myProxyElement, and myReverseIteration.

Referenced by next().

{
        if(myProxyElement==NULL)
        {
                while(itAlreadyReturned!=alreadyReturnedElements.end())
                {
                        myProxyElement=*itAlreadyReturned;
                        itAlreadyReturned++;    

                        if(myReverseIteration)
                        {
                                SMDS_ElemIteratorPtr it=
                                        myProxyElement->elementsIterator(myElement->GetType());
                                while(it->more())
                                {                               
                                        if(it->next()==myElement) return true;
                                }
                        }
                        else return true;
                }
                myProxyElement=NULL;
                return false;
        }
        else return true;
}

const SMDS_MeshElement * SMDS_IteratorOfElements::next ( ) [virtual]

Return the current object and step to the next one.

Implements SMDS_Iterator< const SMDS_MeshElement * >.

Definition at line 103 of file SMDS_IteratorOfElements.cxx.

References more(), and myProxyElement.

{
        more();
        const SMDS_MeshElement *e=myProxyElement;
        myProxyElement=NULL;
        return e;
}

virtual void SMDS_Iterator< const SMDS_MeshElement * >.remove ( ) [virtual, inherited]

Delete the current element and step to the next one.

Definition at line 44 of file SMDS_Iterator.hxx.

{}

bool SMDS_IteratorOfElements::subMore ( ) [private]

Definition at line 31 of file SMDS_IteratorOfElements.cxx.

References myType, t1Iterator, and t2Iterator.

Referenced by SMDS_IteratorOfElements().

{
        if((t2Iterator.get()==NULL)||(!t2Iterator->more()))
        {
                if(t1Iterator->more())
                {
                        t2Iterator=t1Iterator->next()->elementsIterator(myType);
                        return subMore();
                }
                else return false;
        }
        else return true;
}

const SMDS_MeshElement * SMDS_IteratorOfElements::subNext ( ) [private]

Definition at line 45 of file SMDS_IteratorOfElements.cxx.

References myType, t1Iterator, and t2Iterator.

Referenced by SMDS_IteratorOfElements().

{
        if((t2Iterator.get()==NULL)||(!t2Iterator->more()))
                if(t1Iterator->more())
                        t2Iterator=t1Iterator->next()->elementsIterator(myType);
        return t2Iterator->next();
}