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" 32*0Sstevel@tonic-gate /*LINTLIBRARY*/ 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #include <stdlib.h> 35*0Sstevel@tonic-gate #include <stdio.h> 36*0Sstevel@tonic-gate #include <signal.h> 37*0Sstevel@tonic-gate #include <unistd.h> 38*0Sstevel@tonic-gate #include <plot.h> 39*0Sstevel@tonic-gate #include "con.h" 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate int xnow, ynow, OUTF; 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate int 44*0Sstevel@tonic-gate xconv(int xp) 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate /* 47*0Sstevel@tonic-gate * x position input is -2047 to +2047, 48*0Sstevel@tonic-gate * output must be 0 to PAGSIZ*HORZRES 49*0Sstevel@tonic-gate */ 50*0Sstevel@tonic-gate xp += 2048; 51*0Sstevel@tonic-gate /* the computation is newx = xp*(PAGSIZ*HORZRES)/4096 */ 52*0Sstevel@tonic-gate return (xoffset + xp / xscale); 53*0Sstevel@tonic-gate } 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate int 56*0Sstevel@tonic-gate yconv(int yp) 57*0Sstevel@tonic-gate { 58*0Sstevel@tonic-gate /* see description of xconv */ 59*0Sstevel@tonic-gate yp += 2048; 60*0Sstevel@tonic-gate return (yp / yscale); 61*0Sstevel@tonic-gate } 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate void 64*0Sstevel@tonic-gate inplot(void) 65*0Sstevel@tonic-gate { 66*0Sstevel@tonic-gate spew(ESC); 67*0Sstevel@tonic-gate spew(PLOTIN); 68*0Sstevel@tonic-gate } 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate void 71*0Sstevel@tonic-gate outplot(void) 72*0Sstevel@tonic-gate { 73*0Sstevel@tonic-gate spew(ESC); 74*0Sstevel@tonic-gate spew(PLOTOUT); 75*0Sstevel@tonic-gate (void) fflush(stdout); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate void 79*0Sstevel@tonic-gate spew(char ch) 80*0Sstevel@tonic-gate { 81*0Sstevel@tonic-gate if (ch == UP) { 82*0Sstevel@tonic-gate (void) putc(ESC, stdout); 83*0Sstevel@tonic-gate ch = DOWN; 84*0Sstevel@tonic-gate } 85*0Sstevel@tonic-gate (void) putc(ch, stdout); 86*0Sstevel@tonic-gate } 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate void 89*0Sstevel@tonic-gate tobotleft(void) 90*0Sstevel@tonic-gate { 91*0Sstevel@tonic-gate move(-2048, -2048); 92*0Sstevel@tonic-gate } 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate void 95*0Sstevel@tonic-gate reset(void) 96*0Sstevel@tonic-gate { 97*0Sstevel@tonic-gate (void) signal(SIGINT, SIG_IGN); 98*0Sstevel@tonic-gate outplot(); 99*0Sstevel@tonic-gate (void) ioctl(OUTF, TCSETAW, &ITTY); 100*0Sstevel@tonic-gate _exit(0); 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate float 104*0Sstevel@tonic-gate dist2(int x1, int y1, int x2, int y2) 105*0Sstevel@tonic-gate { 106*0Sstevel@tonic-gate float t, v; 107*0Sstevel@tonic-gate t = x2 - x1; 108*0Sstevel@tonic-gate v = y1 - y2; 109*0Sstevel@tonic-gate return (t * t + v * v); 110*0Sstevel@tonic-gate } 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate void 113*0Sstevel@tonic-gate swap(int *pa, int *pb) 114*0Sstevel@tonic-gate { 115*0Sstevel@tonic-gate int t; 116*0Sstevel@tonic-gate t = *pa; 117*0Sstevel@tonic-gate *pa = *pb; 118*0Sstevel@tonic-gate *pb = t; 119*0Sstevel@tonic-gate } 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate void 122*0Sstevel@tonic-gate movep(int xg, int yg) 123*0Sstevel@tonic-gate { 124*0Sstevel@tonic-gate int i; 125*0Sstevel@tonic-gate char ch; 126*0Sstevel@tonic-gate if ((xg == xnow) && (yg == ynow)) 127*0Sstevel@tonic-gate return; 128*0Sstevel@tonic-gate /* if we need to go to left margin, just CR */ 129*0Sstevel@tonic-gate if (xg < xnow / 2) { 130*0Sstevel@tonic-gate spew(CR); 131*0Sstevel@tonic-gate xnow = 0; 132*0Sstevel@tonic-gate } 133*0Sstevel@tonic-gate i = (int)((xg - xnow) / HORZRES); 134*0Sstevel@tonic-gate if (xnow < xg) 135*0Sstevel@tonic-gate ch = RIGHT; 136*0Sstevel@tonic-gate else ch = LEFT; 137*0Sstevel@tonic-gate xnow += i * HORZRES; 138*0Sstevel@tonic-gate i = abs(i); 139*0Sstevel@tonic-gate while (i--) 140*0Sstevel@tonic-gate spew(ch); 141*0Sstevel@tonic-gate i = abs(xg - xnow); 142*0Sstevel@tonic-gate inplot(); 143*0Sstevel@tonic-gate while (i--) 144*0Sstevel@tonic-gate spew(ch); 145*0Sstevel@tonic-gate outplot(); 146*0Sstevel@tonic-gate i = (int)((yg - ynow) / VERTRES); 147*0Sstevel@tonic-gate if (ynow < yg) 148*0Sstevel@tonic-gate ch = UP; 149*0Sstevel@tonic-gate else ch = DOWN; 150*0Sstevel@tonic-gate ynow += i * VERTRES; 151*0Sstevel@tonic-gate i = abs(i); 152*0Sstevel@tonic-gate while (i--) 153*0Sstevel@tonic-gate spew(ch); 154*0Sstevel@tonic-gate i = abs(yg - ynow); 155*0Sstevel@tonic-gate inplot(); 156*0Sstevel@tonic-gate while (i--) 157*0Sstevel@tonic-gate spew(ch); 158*0Sstevel@tonic-gate outplot(); 159*0Sstevel@tonic-gate xnow = xg; ynow = yg; 160*0Sstevel@tonic-gate } 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate int 163*0Sstevel@tonic-gate xsc(int xi) 164*0Sstevel@tonic-gate { 165*0Sstevel@tonic-gate int xa; 166*0Sstevel@tonic-gate xa = (int)((xi - obotx) * scalex + botx); 167*0Sstevel@tonic-gate return (xa); 168*0Sstevel@tonic-gate } 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate int 171*0Sstevel@tonic-gate ysc(int yi) 172*0Sstevel@tonic-gate { 173*0Sstevel@tonic-gate int ya; 174*0Sstevel@tonic-gate ya = (int)((yi - oboty) *scaley +boty); 175*0Sstevel@tonic-gate return (ya); 176*0Sstevel@tonic-gate } 177