simple_rectangular_tri_mesh.h

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// LIC// ====================================================================
// LIC// This file forms part of oomph-lib, the object-oriented,
// LIC// multi-physics finite-element library, available
// LIC// at http://www.oomph-lib.org.
// LIC//
// LIC// Copyright (C) 2006-2025 Matthias Heil and Andrew Hazel
// LIC//
// LIC// This library is free software; you can redistribute it and/or
// LIC// modify it under the terms of the GNU Lesser General Public
// LIC// License as published by the Free Software Foundation; either
// LIC// version 2.1 of the License, or (at your option) any later version.
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// LIC// This library is distributed in the hope that it will be useful,
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// LIC// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// LIC// Lesser General Public License for more details.
// LIC//
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// LIC//====================================================================
// Header file for simple 2D triangle mesh class
 
// Include guards to prevent multiple inclusion of the header
#ifndef OOMPH_SIMPLE_RECTANGULAR_TRI_MESH_HEADER
#define OOMPH_SIMPLE_RECTANGULAR_TRI_MESH_HEADER
 
// Config header
#ifdef HAVE_CONFIG_H
#include <oomph-lib-config.h>
#endif
 
// Oomph-lib includes
#include "generic/mesh.h"
#include "generic/triangle_mesh.h"
 
namespace oomph
{
  //===================================================================
  /// Simple 2D triangular mesh for TElements
  //===================================================================
  template<class ELEMENT>
  class SimpleRectangularTriMesh : public virtual TriangleMeshBase
  {
  public:
    /// Constructor
    /// n_x  : number of elements in the x direction;
    /// n_y  : number of elements in the y direction;
    /// l_x  : length in the x direction
    /// l_y  : length in the y direction
    /// Ordering of elements: 'lower left' to 'lower right' then 'upwards'
    SimpleRectangularTriMesh(
      const unsigned& n_x,
      const unsigned& n_y,
      const double& l_x,
      const double& l_y,
      TimeStepper* time_stepper_pt = &Mesh::Default_TimeStepper);
 
    /// Access function for number of elements in x directions
    const unsigned& nx() const
    {
      return Nx;
    }
 
    /// Access function for number of elements in y directions
    const unsigned& ny() const
    {
      return Ny;
    }
 
  private:
    /// Number of elements in x direction
    unsigned Nx;
 
    /// Number of elements in y directions
    unsigned Ny;
 
    /// Length of mesh in x-direction
    double Lx;
 
    /// Length of mesh in y-direction
    double Ly;
  };
 
} // namespace oomph
 
#include "simple_rectangular_tri_mesh.template.cc"
#endif