77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
// Copyright (c) 2010-2020, Lawrence Livermore National Security, LLC. Produced
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// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
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// LICENSE and NOTICE for details. LLNL-CODE-806117.
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//
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// This file is part of the MFEM library. For more information and source code
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// availability visit https://mfem.org.
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//
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// MFEM is free software; you can redistribute it and/or modify it under the
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// terms of the BSD-3 license. We welcome feedback and contributions, see file
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// CONTRIBUTING.md for details.
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#ifndef MFEM_SEGMENT
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#define MFEM_SEGMENT
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#include "../config/config.hpp"
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#include "element.hpp"
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namespace mfem
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{
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/// Data type line segment element
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class Segment : public Element
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{
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protected:
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int indices[2];
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public:
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typedef Geometry::Constants<Geometry::SEGMENT> geom_t;
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Segment() : Element(Geometry::SEGMENT) {}
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/// Constructs triangle by specifying the indices and the attribute.
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Segment(const int *ind, int attr = 1);
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/// Constructs triangle by specifying the indices and the attribute.
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Segment(int ind1, int ind2, int attr = 1);
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/// Set the indices the element according to the input.
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virtual void SetVertices(const int *ind);
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/// Return element's type.
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virtual Type GetType() const { return Element::SEGMENT; }
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/// Returns the indices of the element's vertices.
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virtual void GetVertices(Array<int> &v) const;
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virtual int *GetVertices() { return indices; }
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virtual int GetNVertices() const { return 2; }
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virtual int GetNEdges() const { return (0); }
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virtual const int *GetEdgeVertices(int ei) const { return NULL; }
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/// @deprecated Use GetNFaces(void) and GetNFaceVertices(int) instead.
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MFEM_DEPRECATED virtual int GetNFaces(int &nFaceVertices) const
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{ nFaceVertices = 0; return 0; }
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virtual int GetNFaces() const { return 0; }
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virtual int GetNFaceVertices(int) const { return 0; }
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virtual const int *GetFaceVertices(int fi) const { return NULL; }
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virtual Element *Duplicate(Mesh *m) const
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{ return new Segment(indices, attribute); }
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virtual ~Segment() { }
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};
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class Linear1DFiniteElement;
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extern Linear1DFiniteElement SegmentFE;
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}
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#endif
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