VertexElement.cpp

/*

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*/
#include "VertexElement.hpp"
#include <cassert>


template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
VertexElement<ELEMENT_DIM, SPACE_DIM>::VertexElement(unsigned index,
                                                     const std::vector<VertexElement<ELEMENT_DIM-1,SPACE_DIM>*>& rFaces,
                                                     const std::vector<bool>& rOrientations,
                                                     const std::vector<Node<SPACE_DIM>*>& rNodes)
    : MutableElement<ELEMENT_DIM, SPACE_DIM>(index, rNodes),
      mFaces(rFaces),
      mOrientations(rOrientations)
{
    // This constructor should only be used in 3D
    assert(SPACE_DIM == 3);

    // Each face must have an associated orientation
    assert(mFaces.size() == mOrientations.size());

    if (SPACE_DIM == ELEMENT_DIM)
    {
        // Register element with nodes
        this->RegisterWithNodes();
    }
}

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
VertexElement<ELEMENT_DIM, SPACE_DIM>::VertexElement(unsigned index,
                                                     const std::vector<VertexElement<ELEMENT_DIM-1,SPACE_DIM>*>& rFaces,
                                                     const std::vector<bool>& rOrientations)
    : MutableElement<ELEMENT_DIM, SPACE_DIM>(index),
      mFaces(rFaces),
      mOrientations(rOrientations)
{
    // Each face must have an associated orientation
    assert(mFaces.size() == mOrientations.size());

    // Make a set of nodes with mFaces
    std::set<Node<SPACE_DIM>* > nodes_set;
    for (unsigned face_index=0; face_index<mFaces.size(); face_index++)
    {
        for (unsigned node_index=0; node_index<mFaces[face_index]->GetNumNodes(); node_index++)
        {
            nodes_set.insert(mFaces[face_index]->GetNode(node_index));
        }
    }

    // Populate mNodes
    for (typename std::set< Node<SPACE_DIM>* >::iterator node_iter = nodes_set.begin();
         node_iter != nodes_set.end();
         ++node_iter)
    {
         this->mNodes.push_back(*node_iter);
    }

    // Register element with nodes
    this->RegisterWithNodes();
}

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
VertexElement<ELEMENT_DIM, SPACE_DIM>::VertexElement(unsigned index)
    : MutableElement<ELEMENT_DIM, SPACE_DIM>(index)
{
}

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
VertexElement<ELEMENT_DIM, SPACE_DIM>::VertexElement(unsigned index,
                                                     const std::vector<Node<SPACE_DIM>*>& rNodes)
    : MutableElement<ELEMENT_DIM, SPACE_DIM>(index, rNodes)
{
}

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
VertexElement<ELEMENT_DIM, SPACE_DIM>::~VertexElement()
{
}

template <unsigned ELEMENT_DIM, unsigned SPACE_DIM>
unsigned VertexElement<ELEMENT_DIM, SPACE_DIM>::GetNumFaces() const
{
    return mFaces.size();
}

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
void VertexElement<ELEMENT_DIM, SPACE_DIM>::AddFace(VertexElement<ELEMENT_DIM-1,SPACE_DIM>* pFace)
{
    // Add pFace to the end of mFaces
    this->mFaces.push_back(pFace);

    // Create a set of indices of nodes currently owned by this element
    std::set<unsigned> node_indices;
    for (unsigned local_index=0; local_index<this->GetNumNodes(); local_index++)
    {
        node_indices.insert(this->GetNodeGlobalIndex(local_index));
    }

    // Loop over nodes owned by pFace
    unsigned end_index = this->GetNumNodes()-1;
    for (unsigned local_index=0; local_index<pFace->GetNumNodes(); local_index++)
    {
        // If this node is not already owned by this element...
        unsigned global_index = pFace->GetNodeGlobalIndex(local_index);
        if (node_indices.find(global_index) == node_indices.end())
        {
            // ... then add it to the element (and vice versa)
            this->AddNode(pFace->GetNode(local_index), end_index);
            end_index++;
        }
    }
}

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
VertexElement<ELEMENT_DIM-1,  SPACE_DIM>* VertexElement<ELEMENT_DIM, SPACE_DIM>::GetFace(unsigned index) const
{
    assert(index < mFaces.size());
    return mFaces[index];
}

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
bool VertexElement<ELEMENT_DIM, SPACE_DIM>::FaceIsOrientatedClockwise(unsigned index) const
{
    assert(index < mOrientations.size());
    return mOrientations[index];
}

//                  Specialization for 1d elements                  //
//                                                                  //
//                 1d elements are just edges (lines)               //

template<unsigned SPACE_DIM>
VertexElement<1, SPACE_DIM>::VertexElement(unsigned index, const std::vector<Node<SPACE_DIM>*>& rNodes)
    : MutableElement<1, SPACE_DIM>(index, rNodes)
{
}

template<unsigned SPACE_DIM>
unsigned VertexElement<1, SPACE_DIM>::GetNumFaces() const
{
    return 0;
}

template<unsigned SPACE_DIM>
VertexElement<0, SPACE_DIM>* VertexElement<1, SPACE_DIM>::GetFace(unsigned index) const
{
    return NULL;
}

template<unsigned SPACE_DIM>
bool VertexElement<1, SPACE_DIM>::FaceIsOrientatedClockwise(unsigned index) const
{
    return false;
}


// Explicit instantiation

template class VertexElement<1,1>;
template class VertexElement<1,2>;
template class VertexElement<1,3>;
template class VertexElement<2,2>;
template class VertexElement<2,3>;
template class VertexElement<3,3>;