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#include <u.h>
#include <libc.h>
#include <stdio.h>
#include <draw.h>
#include <event.h>
#define SCX(A) ((((A) - e1->xmin)*e1->scalex + e1->left)+.5)
#define SCY(A) ((((A) - e1->ymin)*e1->scaley + e1->bottom)+.5)
#define SCR(A) ((A)*e1->scalex+.5)
#define unorm(y) (double)(e1->sidey - y)
#define BIGINT 0x3FFFFFFF /* a large, but valid, int */
extern struct penvir {
double left, bottom;
double xmin, ymin;
double scalex, scaley;
double sidex, sidey;
double copyx, copyy;
double quantum;
double grade;
int pgap;
double pslant;
int pmode;
ulong foregr;
ulong backgr;
} *e0, *e1, *esave;
#define RADIAN 57.3 /* radians per degree */
struct seg {
int x, y, X, Y;
char stat;
};
/*
* display parameters
*/
extern int clipminx, clipminy, clipmaxx, clipmaxy; /* clipping rectangle */
extern int mapminx, mapminy, mapmaxx, mapmaxy; /* centered square */
/*
* Prototypes
*/
#include "../plot.h"
void m_clrwin(int, int, int, int, int);
void m_finish(void);
void m_initialize(char *);
int m_text(int, int, char *, char *, int, int, int);
void m_vector(int, int, int, int, int);
void m_swapbuf(void);
void m_dblbuf(void);
int bcolor(char *);
void sscpy(struct penvir *, struct penvir *);
Image *getcolor(int);
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