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grid_enums.h

/****************************************************************************
 *                                                                          *
 *  Program: FDDlib                                                         *
 *  Version: 1.1                                                            *
 *                                                                          *
 *  Copyright (C) 2002 - 2004 by Eric Miller and Dana Brooks                *
 *  All rights reserved.                                                    *
 *                                                                          *
 *  This software is Version 1.1 of the fddlib tomography toolbox.          *
 *  It is not to be redistributed or used for any commercial purpose        *
 *  without the prior written consent of the authors and Northeastern       *
 *  University.                                                             *
 *                                                                          *
 *  This software is provided as is, and any express or implied warranties, *
 *  including but not limited to the implied warranty of merchantability    *
 *  and the implied warranty of fitness for a particular purpose, are dis-  *
 *  claimed.  In no event shall the authors or Northeastern University be   *
 *  liable for any direct, indirect, incidental, special, exemplary, or     *
 *  consequential damages (including but not limited to procurement of      *
 *  substitute goods or services; loss of use, data, or profits; or busi-   *
 *  ness interruption) however caused and on any theory of liability,       *
 *  whether in contract, strict liability, or tort (including negligence or *
 *  otherwise) arising in any way from the use of this software, even if    *
 *  advised of the possibility of such damage.                              *
 *                                                                          *
 *  Portions of this code benefit from ideas from Kyle Guilbert, Greg       *
 *  Boverman, Derek Uluski, David Kaeli, and Jennifer Black                 *
 *                                                                          *
 ****************************************************************************/

#ifndef _GRID_ENUMS_H_
#define _GRID_ENUMS_H_

namespace FDDlib {

enum gridSide2D { lowX_2D, highX_2D, lowY_2D, highY_2D };

enum gridSide3D { lowX_3D, highX_3D, lowY_3D, highY_3D, topZ_3D, bottomZ_3D };

enum direction2D { XP1_2D, XM1_2D, YP1_2D, YM1_2D };

enum direction3D { XP1_3D, XM1_3D, YP1_3D, YM1_3D, ZP1_3D, ZM1_3D };

}

#endif

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