shells/driverCC/SEdgeFunctors.h

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// -*- C++ -*- 
//
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
//                                   Fehmi Cirak
//                        California Institute of Technology
//                           (C) 2004 All Rights Reserved
//
// <LicenseText>
//
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
#ifndef SEDGEFUNCTORS_H
#define SEDGEFUNCTORS_H
#include "../fem/definitions.h"
#include "../fem/sedge.h"

#include <functional>
#include <vector>
#include <cassert>


namespace shells {    
    class SEdgeCoupling;
    class SEdgeCouplingFragmented;
    template<typename Inserter>
    struct SEdgeVertices;
}


class shells::SEdgeCoupling : 
    public std::unary_function<shells::SEdgeS *, void> {
    // collect the vertices in the one ring of elements attached to the edge
public:
    SEdgeCoupling(std::vector<shells::SVertexS*>& vertices):_vertices(vertices){}

    void operator()(const shells::SEdgeS * const edge) const;

private:
    std::vector<shells::SVertexS *>&     _vertices;
};



class shells::SEdgeCouplingFragmented : 
    public std::unary_function<shells::SEdgeS *, void> {
    // collect the vertices in the one ring of elements attached to the edge
public:
    SEdgeCouplingFragmented(std::vector<shells::SVertexS*>& vertices):_vertices(vertices){}

    void operator()(const shells::SEdgeS * const edge) const;

private:
    std::vector<shells::SVertexS *>&     _vertices;
};



namespace shells {    

template<typename Inserter>
struct SEdgeVertices  : 
    public std::binary_function<shells::SEdge *, Inserter, void> {
public:
    // insert the two pointers to the edge vertices into inserter
    
    void operator()(shells::SEdge *edge, Inserter ins) const 
        {
            *ins++ = edge->m_a;
            *ins++ = edge->m_b;

            if (edge->m_a != edge->m_a2) *ins++ = edge->m_a2;
            if (edge->m_b != edge->m_b2) *ins++ = edge->m_b2;
        }
};

} // namespace shells

#endif

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