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// Demeter Terrain Visualization Library by Clay Fowler
// Copyright (C) 2002 Clay Fowler
// $ID$
/*
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
Library General Public License for more details.
You should have received a copy of the GNU Library 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 _RAY_DEMETER_H_
#define _RAY_DEMETER_H_
#include "Demeter/Vector.h"
/// \brief The Demeter Terrain Engine.
namespace Demeter
{
/// \brief Ray represents a geometric ray (a line that begins at a point and extends in some direction infinitely.)
/// This class is used for ray tracing. It defines a starting point and a direction for a ray that can be tested for intersection
/// with a Terrain's surface.
class TERRAIN_API Ray
{
public:
/// \brief Creates a new Ray that has undefined origin and direction.
Ray()
{
m_Length = INFINITY;
}
/// \brief Destroys the Ray.
~Ray()
{
}
/// Defines the starting point of the Ray.
Vector m_Origin;
/// Defines the direction of the Ray.
Vector m_Direction;
/// Defines the length of the Ray.
float m_Length;
};
}
#endif
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