Plane.h

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/*
  Copyright (C) 2011 Jon Macey

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef PLANE_H_
#define PLANE_H_
//----------------------------------------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------------------------------------
// must include types.h first for Real and GLEW if required
#include "Types.h"
#include "Vec3.h"

//----------------------------------------------------------------------------------------------------------------------

//----------------------------------------------------------------------------------------------------------------------


namespace ngl
{

class NGL_DLLEXPORT Plane
{
public :
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Plane(  const Vec3 &_v1,const Vec3 &_v2,const Vec3 &_v3 ) noexcept;

  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Plane() noexcept;
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  ~Plane() noexcept;
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  void setPoints(const Vec3 &_v1,const Vec3 &_v2,const Vec3 &_v3) noexcept;
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  void setNormalPoint(const Vec3 &_normal,const Vec3 &_point) noexcept;
  //----------------------------------------------------------------------------------------------------------------------

  //----------------------------------------------------------------------------------------------------------------------
  void setFloats( Real _a,  Real _b,  Real _c,  Real _d ) noexcept;
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Real distance(const Vec3 &_p) const noexcept;

  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Vec3 getNormal()const noexcept{return m_normal;}

  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Vec3 getPoint()const  noexcept{return m_point;}
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Real getD()const  noexcept{return m_d;}


private :
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Vec3 m_normal;
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Vec3 m_point;
  //----------------------------------------------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------------------------------------------
  Real m_d;

};


} //end of NGL namespace
#endif