t8_dtri.h

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/*
  This file is part of t8code.
  t8code is a C library to manage a collection (a forest) of multiple
  connected adaptive space-trees of general element classes in parallel.
 
  Copyright (C) 2015 the developers
 
  t8code is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.
 
  t8code 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 General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with t8code; if not, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
 
#ifndef T8_DTRI_H
#define T8_DTRI_H
 
#include <t8.h>
 
T8_EXTERN_C_BEGIN ();
 
#define T8_DTRI_CHILDREN 4
 
#define T8_DTRI_FACES 3
 
#define T8_DTRI_FACE_CHILDREN 2
 
#define T8_DTRI_CORNERS 3
 
#define T8_DTRI_MAXLEVEL 29
 
#define T8_DTRI_ROOT_LEN (1 << (T8_DTRI_MAXLEVEL))
 
#define T8_DTRI_LEN(l) (1 << (T8_DTRI_MAXLEVEL - (l)))
 
#define T8_DTRI_NUM_TYPES 2
 
#define T8_DLINE_ROOT_BY_DTRI_ROOT (1 << (T8_DLINE_MAXLEVEL - T8_DTRI_MAXLEVEL))
 
typedef int8_t      t8_dtri_type_t;
typedef int32_t     t8_dtri_coord_t;
 
typedef struct t8_dtri
{
  int8_t              level;
  t8_dtri_type_t      type;
  t8_dtri_coord_t     x, y;
  t8_dtri_coord_t     n;
}
t8_dtri_t;
 
T8_EXTERN_C_END ();
 
#endif /* T8_DTRI_H */