#ifndef Seifert_H
#define Seifert_H

/* Last edited on 2007-02-01 02:33:57 by stolfi */

/* Procedures to build Seifert. */

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

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

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

Place_t MakeSeifert(void);
  /* This procedure builds the 3-map so called as: "Seifert-Weber Space",
     generated by gluing @places of opposite wall of a triangulated
     dodecahedron, when one menber of each @place is matched to its conter-
     part after a rotation of three-tenth of a turn == 3/5 PI.
     Equal to Lens4. */

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

#endif