circle.c

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C语言 代码 · 共 47 行

#ifndef lint
static char SccsId[] = " @(#)circle.c	4.1	(ULTRIX)	7/2/90";
#endif not(lint)

/*
 * Modification History
 *
 * 	April-11-1989, Pradeep Chetal
 *	Added changes from 4.3Tahoe BSD for lots of new drivers
 */

/*
 * Copyright (c) 1980 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	5.2 (Berkeley) 4/30/85";
#endif not lint


#include "aed.h"

/*---------------------------------------------------------
 *	Circle draws a circle.
 *
 *	Results:	None.
 *
 *	Side Effects:
 *	A circle of radius r is drawn at (x,y).
 *---------------------------------------------------------
 */
circle(x, y, r)
int x, y, r;
{
    char buf[3];
    setcolor("01");
    putc('Q', stdout);
    outxy20(x, y);
    putc('O', stdout);
    chex((r*scale)>>12, buf, 2);
    fputs(buf, stdout);
    (void) fflush(stdout);
}