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EulerAngleOps.h

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/************************************************************** ggt-head beg
 *
 * GGT: Generic Graphics Toolkit
 *
 * Original Authors:
 *   Allen Bierbaum
 *
 * -----------------------------------------------------------------
 * File:          $RCSfile: EulerAngleOps.h,v $
 * Date modified: $Date: 2003/03/03 00:54:04 $
 * Version:       $Revision: 1.4 $
 * -----------------------------------------------------------------
 *
 *********************************************************** 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_EULER_ANGLE_OPS_H_
#define _GMTL_EULER_ANGLE_OPS_H_

#include <gmtl/EulerAngle.h>

namespace gmtl
{

template<class DATA_TYPE, typename ROT_ORDER>
inline bool operator==(const EulerAngle<DATA_TYPE, ROT_ORDER>& e1,
                       const EulerAngle<DATA_TYPE, ROT_ORDER>& e2)
{
   // @todo metaprogramming.
   if (e1[0] != e2[0]) return false;
   if (e1[1] != e2[1]) return false;
   if (e1[2] != e2[2]) return false;
   return true;
}

template<class DATA_TYPE, typename ROT_ORDER>
inline bool operator!=(const EulerAngle<DATA_TYPE, ROT_ORDER>& e1,
                       const EulerAngle<DATA_TYPE, ROT_ORDER>& e2)
{
   return(! (e1 == e2));
}

template<class DATA_TYPE, typename ROT_ORDER>
inline bool isEqual( const EulerAngle<DATA_TYPE, ROT_ORDER>& e1,
                     const EulerAngle<DATA_TYPE, ROT_ORDER>& e2,
                     const DATA_TYPE& eps = (DATA_TYPE)0 )
{
   gmtlASSERT(eps >= (DATA_TYPE)0);
   
   // @todo metaprogramming.
   if (!Math::isEqual( e1[0], e2[0], eps )) return false;
   if (!Math::isEqual( e1[1], e2[1], eps )) return false;
   if (!Math::isEqual( e1[2], e2[2], eps )) return false;
   return true;
}

// @todo write isEquiv function for EulerAngle


} // namespace

#endif

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