#ifndef Pyramid_H
#define Pyramid_H

/* Last edited on 2007-02-02 20:53:48 by stolfi */

/* Pocedures to build {n}-sided pyramid polyhedra. */

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

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

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

Place_vec_t MakePyramid(uint n);
  /* Builds a pyramid with base as a n-gon wall, without cell
     information. */
 
Place_t BuildSimpleBipyr(uint n, bool_t open);
  /* Builds a bipyramid. */

Place_t BuildElongatedBipyr(uint n);
  /* Builds an elongated bipyramid. The icosahedron is obtained with n==5. */

void FixCoordsBipyramid(Place_t p, uint order, bool_t pyramid, ElemTableRec_t *top, Coords_t *c);
  /* Used by {MakeBipyramid.c}.  If {pyramid} is true, the bottom apex is coplanar with
    the rim vertices at {Z=0}, so the base is flat. */

Place_t MakePyram(uint order);
  /* Like {MakePyramid}, but returns a single place. */

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

#endif