plane.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2026 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
 
#ifndef LIBMESH_PLANE_H
#define LIBMESH_PLANE_H
 
// Local includes
#include "libmesh/surface.h"
 
namespace libMesh
{
 
class Plane : public Surface
{
public:
 
  Plane ();
 
  Plane (const Point & p, const Point & n);
 
  Plane (const Point & p0, const Point & p1, const Point & p2);
 
  Plane (const Plane & other_plane);
 
  ~Plane ();
 
  void create_from_point_normal (const Point & p, const Point & n);
 
  void create_from_three_points (const Point & p0,
                                 const Point & p1,
                                 const Point & p2 );
 
  void xy_plane (const Real zpos=0.);
 
  void xz_plane (const Real ypos=0.);
 
  void yz_plane (const Real xpos=0.);
 
  virtual bool above_surface (const Point & p) const override;
 
  virtual bool below_surface (const Point & p) const override;
 
  virtual bool on_surface (const Point & p) const override;
 
  virtual Point closest_point (const Point & p) const override;
 
  virtual Point unit_normal (const Point & p) const override;
 
  const Point & get_planar_point() const;
 
 
private:
  const Point & normal () const { return _normal; }
 
  Point _point;
  Point _normal;
};
 
} // namespace libMesh
 
#endif // LIBMESH_PLANE_H