usr/src/lib/libplot/bitgraph/bg.h

/*      bg.h    4.1     83/11/10        */
/*
 * Displays plot files on a bbn bitgraph terminal.
 */

#include <stdio.h>
#include <math.h>

#define ESC     033
#define PI      3.141592659

/* The graphics address range is 0..XMAX, 0..YMAX. */
#define XMAX    768
#define YMAX    1024
#define scaleX(xi)      ((int) ((xi - lowx)*scale +0.5))
#define scaleY(yi)      ((int) ((yi - lowy)*scale +0.5))

extern int currentx;
extern int currenty;
extern double lowx;
extern double lowy;
extern double scale;