/*
 *  Eukleides  version 1.0.3
 *  Copyright (c) Christian Obrecht 2000-2004
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


void frame(double, double, double, double, double);

void default_frame(void);

void setcolor_string(char *);

void setcolor_flag(int);

void setthickness(float);

void puttricks(char *);

void draw_point(_point*, int, double);

void draw_vector(_vector*, _point*, int);

void draw_line(_line*, int, int);

void draw_segment(_segment*, int, int);

void draw_circle(_circle*, int);

void draw_arc(_circle*, double, double, int, int);

void draw_conic(_conic*, int);

void draw_conic_arc(_conic*, double, double, int);

void draw_digon(_point*, _point*, int, int);

void draw_triangle(_point*, _point*, _point*, int);

void draw_quadrilateral(_point*, _point*, _point*, _point*, int);

void draw_pentagon(_point*, _point*, _point*, _point*, _point*, int);

void draw_hexagon(_point*, _point*, _point*, _point*, _point*, _point*, int);

void draw_label(char *, _point*, double, double);

void draw_P_label(char *, _point*, double, double);

void draw_S_label(char *, _segment*, double, double);

void draw_P_N(double, char *, _point*, double, double);

void draw_S_N(double, char *, _segment*, double, double);

void draw_P_NN(double, double, char *, _point*, double, double);

void draw_S_NN(double, double, char *, _segment*, double, double);

void mark_S(_segment*, int, double);

void mark_A(_point*, _point*, _point*, int, double);

void add_point(_point *, int);