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LineSeg.h

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/************************************************************** ggt-head beg
 *
 * GGT: Generic Graphics Toolkit
 *
 * Original Authors:
 *   Allen Bierbaum
 *
 * -----------------------------------------------------------------
 * File:          $RCSfile: LineSeg.h,v $
 * Date modified: $Date: 2003/03/03 00:54:05 $
 * Version:       $Revision: 1.7 $
 * -----------------------------------------------------------------
 *
 *********************************************************** ggt-head end */
/*************************************************************** ggt-cpr beg
*
* GGT: The Generic Graphics Toolkit
* Copyright (C) 2001,2002 Allen Bierbaum
*
* 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
*
 ************************************************************ ggt-cpr end */
#ifndef _GMTL_LINESEG_H_
#define _GMTL_LINESEG_H_

#include <gmtl/Point.h>
#include <gmtl/Vec.h>
#include <gmtl/VecOps.h>
#include <gmtl/Ray.h>

namespace gmtl {

template <typename DATA_TYPE>
class LineSeg : public Ray<DATA_TYPE>
{
public:
   LineSeg()
   {}

   LineSeg( const Point<DATA_TYPE, 3>& origin, const Vec<DATA_TYPE, 3>& dir )
      : Ray<DATA_TYPE>( origin, dir )
   {}

   LineSeg( const LineSeg& ray ) : Ray<DATA_TYPE>( ray )
   {
   }

   LineSeg( const Point<DATA_TYPE, 3>& beg, const Point<DATA_TYPE, 3>& end )
      : Ray<DATA_TYPE>()
   {
      this->mOrigin = beg;
      this->mDir = end - beg;
   }

   DATA_TYPE getLength() const
   {
      return length(this->mDir);
   }
};


// --- helper types --- //
typedef LineSeg<float>  LineSegf;
typedef LineSeg<double> LineSegd;
}

#endif

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