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Defines.h

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/************************************************************** ggt-head beg
 *
 * GGT: Generic Graphics Toolkit
 *
 * Original Authors:
 *   Allen Bierbaum
 *
 * -----------------------------------------------------------------
 * File:          $RCSfile: Defines.h,v $
 * Date modified: $Date: 2003/03/03 00:54:04 $
 * 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_DEFINES_H
#define _GMTL_DEFINES_H

namespace gmtl
{
   enum VectorIndex { Xelt = 0, Yelt = 1, Zelt = 2, Welt = 3 };

   enum PlaneSide
   {
      ON_PLANE,
      POS_SIDE,
      NEG_SIDE
   };

   const float GMTL_EPSILON = 1.0e-6f;
   const float GMTL_MAT_EQUAL_EPSILON = 0.001f;  // Epsilon for matrices to be equal
   const float GMTL_VEC_EQUAL_EPSILON = 0.0001f; // Epsilon for vectors to be equal
#define GMTL_NEAR(x,y,eps) (gmtl::Math::abs((x)-(y))<(eps))

};

// Platform-specific settings.
#if defined(__sun) || defined(__APPLE__) || defined(__hpux)
#define NO_ACOSF 1
#define NO_ASINF 1
#define NO_TANF 1
#define NO_ATAN2F 1
#define NO_COSF 1
#define NO_SINF 1
#define NO_TANF 1
#define NO_SQRTF 1
#define NO_LOGF 1
#define NO_EXPF 1
#define NO_POWF 1
#define NO_CEILF 1
#define NO_FLOORF 1
#endif


#endif

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