shells/fragmentation/SEdgeRemapElement.h

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// -*- C++ -*- 
//
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
//                                   Fehmi Cirak
//                        California Institute of Technology
//                           (C) 2003 All Rights Reserved
//
// <LicenseText>
//
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
#ifndef SEDGEREMAPELEMENT_H
#define SEDGEREMAPELEMENT_H

#include <vector>
#include <utility>
#include <functional>
#include <algorithm>


namespace shells {
    struct SElementS;
    struct SEdgeS;
    class SEdgeRemapElement;
}



class shells::SEdgeRemapElement : 
    public std::unary_function<shells::SEdgeS *, void> {

public:
    
    typedef std::pair<shells::SElementS*, shells::SElementS*> SElementPair;
    typedef std::vector<SElementPair> SElementPairCont; 
    typedef std::vector<SElementPair>::iterator SElementPairIter; 
    
    SEdgeRemapElement(SElementPairCont& oldNewActive) :_oldNewActive(oldNewActive)
        {
            sortOldNewActiveVector();
        }
    
    void operator()(shells::SEdgeS *) const;
    
    // helper function defined for avoiding compiler problems
    static SElementPair inline makeSElementPair(shells::SElementS *x, shells::SElementS *y)
        {
            return std::pair<shells::SElementS *, shells::SElementS *>(x, y);
        }    
    
private:
    SElementPairCont&  _oldNewActive;   // mapping between old and new active elem.

    // private function
    void sortOldNewActiveVector();
};

#endif

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