gts/predicates.h

   1 /* GTS - Library for the manipulation of triangulated surfaces
   2  * Copyright (C) 1999 Stéphane Popinet
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19 /* Header file for robust predicates by Jonathan Richard Shewchuk */
  20
  21 #ifndef __PREDICATES_H__
  22 #define __PREDICATES_H__
  23
  24 double orient2d            (double * pa,
  25                             double * pb,
  26                             double * pc);
  27 double orient3d            (double * pa,
  28                             double * pb,
  29                             double * pc,
  30                             double * pd);
  31 double incircle            (double * pa,
  32                             double * pb,
  33                             double * pc,
  34                             double * pd);
  35 double insphere            (double * pa,
  36                             double * pb,
  37                             double * pc,
  38                             double * pd,
  39                             double * pe);
  40
  41 #endif /* __PREDICATES_H__ */