xref: /plan9/sys/src/cmd/plot/libplot/mplot.h (revision 7dd7cddf99dd7472612f1413b4da293630e6b1bc)
1 #include <u.h>
2 #include <libc.h>
3 #include <stdio.h>
4 #include <draw.h>
5 #include <event.h>
6 #define SCX(A) ((((A) - e1->xmin)*e1->scalex  + e1->left)+.5)
7 #define SCY(A) ((((A) - e1->ymin)*e1->scaley + e1->bottom)+.5)
8 #define	SCR(A) ((A)*e1->scalex+.5)
9 #define unorm(y)	(double)(e1->sidey - y)
10 #define	BIGINT	0x3FFFFFFF	/* a large, but valid, int */
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 	double quantum;
18 	double grade;
19 	int pgap;
20 	double pslant;
21 	int pmode, foregr, backgr;
22 } *e0, *e1, *esave;
23 #define RADIAN 57.3	/* radians per degree */
24 struct seg {
25 	int x, y, X, Y;
26 	char stat;
27 };
28 
29 /*
30  * display parameters
31  */
32 int clipminx, clipminy, clipmaxx, clipmaxy;	/* clipping rectangle */
33 int mapminx, mapminy, mapmaxx, mapmaxy;		/* centered square */
34 /*
35  * Prototypes
36  */
37 #include "../plot.h"
38 void m_clrwin(int, int, int, int, int);
39 void m_finish(void);
40 void m_initialize(char *);
41 int m_text(int, int, char *, char *, int, int, int);
42 void m_vector(int, int, int, int, int);
43 void m_swapbuf(void);
44 void m_dblbuf(void);
45 int bcolor(char *);
46 void sscpy(struct penvir *, struct penvir *);
47 Image *getcolor(int);
48