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// file: genbox.h
// update: 12/13/02
#ifndef _GENBOX_H
#define _GENBOX_H
#include <cassert>
#include <cstdlib>
#include <iostream>
#include "bigrational_vector.h"
#include "ksolid.h"
using namespace std;
int get_patch4(const bigrational_vector pts[4], K_PATCH*& patch);
K_SOLID gen_box(const bigrational_vector pts[], const unsigned long num_pts);
// int get_impl_plane_bilin(const bigrational_vector pts[4], K_RATPOLY*& impl)
// computes the implicit formula for the plane of the bilinear surface
// that passes 4 points pts.
// returns 1 if 4 points pts are coplanar and
// 0 otherwise, i.e., 4 points pts are on some bilinear surface.
int get_impl_plane_bilin(const bigrational_vector [4], K_RATPOLY*&);
// int get_param_plane(const bigrational_vector& x,
// const bigrational_vector& y,
// const bigrational_vector& z,
// K_RATPOLY*& X,
// K_RATPOLY*& Y,
// K_RATPOLY*& Z,
// K_RATPOLY*& W)
// computes the parametric formula (X/W, Y/W, Z/W) for the plane
// that passes 3 points x, y and z.
int get_param_plane(const bigrational_vector&,
const bigrational_vector&,
const bigrational_vector&,
K_RATPOLY*&,
K_RATPOLY*&,
K_RATPOLY*&,
K_RATPOLY*&);
K_SOLID read_box(istream&, const bigrational& = 0);
K_SOLID read_BRLCAD_box(istream&, const bigrational& = 0);
#endif
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