usr/src/usr.lib/libplot/grn/circle.c

/*
 * Copyright (c) 1980, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)circle.c    6.1 (Berkeley) 8/29/86";
#endif not lint


#include "grnplot.h"

/*---------------------------------------------------------
 *      Circle draws a circle.
 *
 *      Results:        None.
 *
 *      Side Effects:
 *      A circle of radius r is drawn at (x,y).
 *      The current position is set to (x,y);
 *---------------------------------------------------------
 */
circle(x, y, r)
int x, y, r;
{
        if (!ingrnfile) erase();
        endvector();
        printf("ARC\n");
        outxy(x,y);
        outxy(x+r,y);
        outxy(x,y+r);
        outxy(x,y-r);
        outxy(x+r,y);
        outxy(x-r,y);
        printf("*\n%d 0\n0\n",linestyle);
        curx=x;
        cury=y;
}