Line.cpp

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////////////////////////////////////////////////////////////////////////////////
//
//  File: Line.cpp
//
//  For more information, please see: http://www.nektar.info/
//
//  The MIT License
//
//  Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
//  Department of Aeronautics, Imperial College London (UK), and Scientific
//  Computing and Imaging Institute, University of Utah (USA).
//
//  License for the specific language governing rights and limitations under
//  Permission is hereby granted, free of charge, to any person obtaining a
//  copy of this software and associated documentation files (the "Software"),
//  to deal in the Software without restriction, including without limitation
//  the rights to use, copy, modify, merge, publish, distribute, sublicense,
//  and/or sell copies of the Software, and to permit persons to whom the
//  Software is furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included
//  in all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
//  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
//  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
//  DEALINGS IN THE SOFTWARE.
//
//  Description: Mesh manipulation objects.
//
////////////////////////////////////////////////////////////////////////////////

#include <NekMeshUtils/MeshElements/Line.h>
using namespace std;

namespace Nektar
{
namespace NekMeshUtils
{

LibUtilities::ShapeType Line::m_type =
    GetElementFactory().RegisterCreatorFunction(
        LibUtilities::eSegment, Line::create, "Line");

/**
 * @brief Create a line element.
 */
Line::Line(ElmtConfig pConf,
           vector<NodeSharedPtr> pNodeList,
           vector<int> pTagList)
    : Element(pConf, GetNumNodes(pConf), pNodeList.size())
{
    m_tag     = "S";
    m_dim     = 1;
    m_taglist = pTagList;
    int n     = m_conf.m_order - 1;

    // Add vertices
    for (int i = 0; i < 2; ++i)
    {
        m_vertex.push_back(pNodeList[i]);
    }
    vector<NodeSharedPtr> edgeNodes;
    if (m_conf.m_order > 1)
    {
        for (int j = 0; j < n; ++j)
        {
            edgeNodes.push_back(pNodeList[2 + j]);
        }
    }
    m_edge.push_back(boost::shared_ptr<Edge>(new Edge(
        pNodeList[0], pNodeList[1], edgeNodes, m_conf.m_edgeCurveType)));
}

SpatialDomains::GeometrySharedPtr Line::GetGeom(int coordDim)
{
    // Create edge vertices.
    SpatialDomains::PointGeomSharedPtr p[2];
    SpatialDomains::SegGeomSharedPtr ret;

    p[0] = m_vertex[0]->GetGeom(coordDim);
    p[1] = m_vertex[1]->GetGeom(coordDim);

    if (m_edge[0]->m_edgeNodes.size() > 0)
    {
        SpatialDomains::CurveSharedPtr c =
            MemoryManager<SpatialDomains::Curve>::AllocateSharedPtr(
                m_id, m_edge[0]->m_curveType);

        c->m_points.push_back(p[0]);
        for (int i = 0; i < m_edge[0]->m_edgeNodes.size(); ++i)
        {
            c->m_points.push_back(m_edge[0]->m_edgeNodes[i]->GetGeom(coordDim));
        }
        c->m_points.push_back(p[1]);

        ret = MemoryManager<SpatialDomains::SegGeom>::AllocateSharedPtr(
            m_id, 2, p, c);
    }
    else
    {
        ret = MemoryManager<SpatialDomains::SegGeom>::AllocateSharedPtr(
            m_id, 2, p);
    }

    return ret;
}

/**
 * @brief Return the number of nodes defining a line.
 */
unsigned int Line::GetNumNodes(ElmtConfig pConf)
{
    return pConf.m_order + 1;
}
}
}