domainboundary.h

利用C

// Copyright (C) 2008 Anders Logg.
// Licensed under the GNU LGPL Version 2.1.
//
// First added:  2008-05-23
// Last changed: 2008-05-23

#ifndef __DOMAIN_BOUNDARY_H
#define __DOMAIN_BOUNDARY_H

#include "SubDomain.h"

namespace dolfin
{

  /// This class provides a SubDomain which picks out the boundary of
  /// a mesh, and provides a convenient way to specify boundary
  /// conditions on the entire boundary of a mesh.

  class DomainBoundary : public SubDomain
  {
  public:

    /// Constructor
    DomainBoundary() {};

    /// Destructor
    virtual ~DomainBoundary() {}

    /// Return true for points on the boundary
    virtual bool inside(const real* x, bool on_boundary) const { return on_boundary; }

  };

}

#endif