1 #ifndef BUFSIZE
2 #include <stdio.h>
3 #endif
4 #define SCX(A) (int)((A)*e1->scalex+0.5)
5 #define SCY(A) (int)((A)*e1->scaley+0.5)
6 #define TRX(A) (int)(((A) - e1->xmin)*e1->scalex  + e1->left)
7 #define TRY(A) (int)(((A) - e1->ymin)*e1->scaley + e1->bottom)
8 #define DTRX(A) (((A) - e1->xmin)*e1->scalex  + e1->left)
9 #define DTRY(A) (((A) - e1->ymin)*e1->scaley + e1->bottom)
10 #define INCHES(A) ((A)/1000.)
11 extern struct penvir {
12 	double left, bottom;
13 	double xmin, ymin;
14 	double scalex, scaley;
15 	double sidex, sidey;
16 	double copyx, copyy;
17 	char *font;
18 	int psize;
19 	int pen;
20 	int pdiam;
21 	double dashlen;
22 	} *e0, *e1, *e2, *esave;
23 enum {
24 	SOLIDPEN, DASHPEN, DOTPEN
25 };
26 extern FILE *TEXFILE;
27 
28 #define round texround
29 
30 extern int round();
31 
32 void		box(double x0, double y0, double x1, double y1) ;
33 void		circle(double xc, double yc, double r);
34 void		closepl(void);
35 void		devarc(double x1, double y1, double x2, double y2, double xc, double yc, int r);
36 void		disc(double xc, double yc, double r);
37 void		erase(void);
38 void		fill(int num[], double *ff[]);
39 void		frame(double xs, double ys, double xf, double yf);
40 void		line(double x0, double y0, double x1, double y1) ;
41 void		move(double xx, double yy) ;
42 void		openpl(void);
43 void		pen(char *s) ;
44 void		poly(int num[], double *ff[]);
45 void		range(double x0, double y0, double x1, double y1) ;
46 void		rmove(double xx, double yy) ;
47 void		rvec(double xx, double yy)  ;
48 void		sbox(double x0, double y0, double x1, double y1) ;
49 void		vec(double xx, double yy) ;
50 void	space(double x0, double y0, double x1, double y1);