2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License, Version 1.0 only
2N/A * (the "License"). You may not use this file except in compliance
2N/A * with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
2N/A/* All Rights Reserved */
2N/A
2N/A
2N/A/*
2N/A * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */
2N/A/*LINTLIBRARY*/
2N/A
2N/A#include <stdlib.h>
2N/A#include <math.h>
2N/A#include "con.h"
2N/A
2N/Aint ynow = 0;
2N/A
2N/Astatic void
2N/Ailine(int cx0, int cy0, int cx1, int cy1) {
2N/A int maxp, tt;
2N/A char chx, chy, command;
2N/A float xd, yd;
2N/A movep(cx0, cy0);
2N/A maxp = (int)(sqrt(dist2(cx0, cy0, cx1, cy1)) / 2.);
2N/A xd = cx1 - cx0;
2N/A yd = cy1 - cy0;
2N/A command = COM|((xd < 0) << 1)|(yd < 0);
2N/A if (maxp == 0) {
2N/A xd = 0;
2N/A yd = 0;
2N/A } else {
2N/A xd /= maxp;
2N/A yd /= maxp;
2N/A }
2N/A inplot();
2N/A spew(command);
2N/A for (tt = 0; tt <= maxp; tt++) {
2N/A chx = (char)(cx0 + xd * tt - xnow);
2N/A xnow += chx;
2N/A chx = abs(chx);
2N/A chy = (char)(cy0 + yd * tt - ynow);
2N/A ynow += chy;
2N/A chy = abs(chy);
2N/A spew(ADDR|chx<<3|chy);
2N/A }
2N/A outplot();
2N/A}
2N/A
2N/Avoid
2N/Aline(short x0, short y0, short x1, short y1) {
2N/A iline(xconv(xsc(x0)), yconv(ysc(y0)), xconv(xsc(x1)), yconv(ysc(y1)));
2N/A}
2N/A
2N/Avoid
2N/Acont(short x0, short y0) {
2N/A iline(xnow, ynow, xconv(xsc(x0)), yconv(ysc(y0)));
2N/A}