1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate /* 27*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 28*0Sstevel@tonic-gate * Use is subject to license terms. 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <stdlib.h> 34*0Sstevel@tonic-gate #include <math.h> 35*0Sstevel@tonic-gate #include <plot.h> 36*0Sstevel@tonic-gate #include "con.h" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate static void 39*0Sstevel@tonic-gate iline(int cx0, int cy0, int cx1, int cy1) 40*0Sstevel@tonic-gate { 41*0Sstevel@tonic-gate int maxp, tt, j; 42*0Sstevel@tonic-gate char chx, chy; 43*0Sstevel@tonic-gate float xd, yd; 44*0Sstevel@tonic-gate movep(cx0, cy0); 45*0Sstevel@tonic-gate maxp = (int)(sqrt(dist2(cx0, cy0, cx1, cy1)) / 2.); 46*0Sstevel@tonic-gate xd = cx1 - cx0; 47*0Sstevel@tonic-gate yd = cy1 - cy0; 48*0Sstevel@tonic-gate if (xd >= 0) 49*0Sstevel@tonic-gate chx = RIGHT; 50*0Sstevel@tonic-gate else chx = LEFT; 51*0Sstevel@tonic-gate if (yd >= 0) 52*0Sstevel@tonic-gate chy = UP; 53*0Sstevel@tonic-gate else chy = DOWN; 54*0Sstevel@tonic-gate if (maxp == 0) { 55*0Sstevel@tonic-gate xd = 0; 56*0Sstevel@tonic-gate yd = 0; 57*0Sstevel@tonic-gate } else { 58*0Sstevel@tonic-gate xd /= maxp; 59*0Sstevel@tonic-gate yd /= maxp; 60*0Sstevel@tonic-gate } 61*0Sstevel@tonic-gate inplot(); 62*0Sstevel@tonic-gate for (tt = 0; tt <= maxp; tt++) { 63*0Sstevel@tonic-gate j = (int)(cx0 + xd * tt - xnow); 64*0Sstevel@tonic-gate xnow += j; 65*0Sstevel@tonic-gate j = abs(j); 66*0Sstevel@tonic-gate while (j-- > 0) 67*0Sstevel@tonic-gate spew(chx); 68*0Sstevel@tonic-gate j = (int)(cy0 + yd * tt - ynow); 69*0Sstevel@tonic-gate ynow += j; 70*0Sstevel@tonic-gate j = abs(j); 71*0Sstevel@tonic-gate while (j-- > 0) 72*0Sstevel@tonic-gate spew(chy); 73*0Sstevel@tonic-gate spew('.'); 74*0Sstevel@tonic-gate } 75*0Sstevel@tonic-gate outplot(); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate void 79*0Sstevel@tonic-gate line(short x0, short y0, short x1, short y1) 80*0Sstevel@tonic-gate { 81*0Sstevel@tonic-gate iline(xconv(xsc(x0)), yconv(ysc(y0)), 82*0Sstevel@tonic-gate xconv(xsc(x1)), yconv(ysc(y1))); 83*0Sstevel@tonic-gate } 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate void 86*0Sstevel@tonic-gate cont(short x0, short y0) 87*0Sstevel@tonic-gate { 88*0Sstevel@tonic-gate iline(xnow, ynow, xconv(xsc(x0)), yconv(ysc(y0))); 89*0Sstevel@tonic-gate } 90