#ifndef Octahedron_H
#define Octahedron_H

/* Last edited on 2007-02-01 14:34:43 by stolfi */

/* Procedures to build octahedra. */

#define Octahedron_H_copyright \
  "Copyright © 2000 Universidade Estadual de Campinas (UNICAMP)"

#include <Octf.h>
#include <Triangulation.h>

#include <r4.h>
#include <vec.h>


EightPlaces_t MakeOctahedron(void);
  /* Builds a topological octahedron, and return one place wedge {p[i]} for
     each wall of the octahedron. */
   
Place_t MakeOcta(void);
  /* Same as {MakeOctahedron} but returns a single place. */

EightPlaces_t MakeOctahedronTriang(bool_t original);
  /* Builds a triangulated Octahedron, with eight tetrahedra, and return
     one place on each original wall. If {original==TRUE} the procedure emphasizes
     the original elements. */

Place_t MakeTwoOctaGlue(void);
  /* Builds a map with two octahedral cell gluing them
     along of a common wall. */

Place_t MakeThreeOctaGlue(void);
  /* Build the topology of the map with three octahedral cell gluing them
     along of common edge. */

#define Octahedron_H_author \
  "C interface created by J. Stolfi, jan/2007."

#endif