/*******************************************************************
     * Header file of Graph2D.cpp             Version 1.0, 10/03/1996   *
     * for Visual C++ 1.5                                  J-P Moreau   *
     ********************************************************************
     *  Functions to draw a 2D curve y=f(x) with automatic scaling in   *
     *  linear or logarithmic scales, in a window defined by Fenetre(). *
     *                                                                  *
     *  Main global variables:                                          *
     *                                                                  *
     *      xgclot,xdclot,ybcot,yhclot : limits in pixels of the window *
     *                                   defined by Fenetre().          *
     *      MaxX, MaxY : screen resolution in X and Y                   *
     *                   ( Ex : MaxX=639  MaxY=349 ).                   *
     *      Log_X, Log_Y : log. scale if = 1                            *
     *      Ech_auto     : automatic scaling if = 1                     *
     *      If Ech_auto = 0, scales in X and Y are defined by:          *
     *      X_mini, X_maxi, Y_mini et Y_maxi.                           *
     *                                                                  *
     *******************************************************************/
#include <windows.h>
#include <math.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


// Number of pixels by screen cm in ox and oy (screen and printer)

#define  XrIBM  29.0       // VGA screen
#define  YrIBM  27.0      

#define  XrEPSON   140.0   // 360 dpi printer
#define  YrEPSON   140.0

#define  XrHP      118.1   // 300 dpi printer
#define  YrHP      118.1

int      id_imprim,id_couleur,id_HP,id_EPSON;

const
    XMini=0,  YMini=0,   Bord=5;

    // Global variables 
    
    double xmin,xmax,ymin,ymax,Cxmx,Cymx,xratio,yratio;
    double dx,dy,Echx,Echy,xo,yo,Xc,Yc;    
    double X_mini,X_maxi,Y_mini,Y_maxi;   
    
    int wind,xgclot,xdclot,ybclot,yhclot;
    int ixmn,ixmx,iymn,iymx,xmin1,xmax1,ymin1,ymax1;
    int Ech_auto=1,id_out,Log_X,Log_Y,MaxX,MaxY;
	int ix,iy;

 // ix,iy = current point in pixels 
 // xo,yo = coordinates of point (xmin,ymin)
 // Xc,Yc = coordinates of screen lower left corner 

extern HDC hdc;    

 // end of file graph2d.h