diff options
Diffstat (limited to 'usr/src/ucbcmd/plot/libplot/t450/line.c')
-rw-r--r-- | usr/src/ucbcmd/plot/libplot/t450/line.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/usr/src/ucbcmd/plot/libplot/t450/line.c b/usr/src/ucbcmd/plot/libplot/t450/line.c new file mode 100644 index 0000000000..226fee3148 --- /dev/null +++ b/usr/src/ucbcmd/plot/libplot/t450/line.c @@ -0,0 +1,77 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ +/* All Rights Reserved */ + + +#ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */ + +/* + * Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc. + * All Rights Reserved. + */ + +#include "con.h" +line(x0,y0,x1,y1){ + iline(xconv(xsc(x0)),yconv(ysc(y0)),xconv(xsc(x1)),yconv(ysc(y1))); + return; +} +cont(x0,y0){ + iline(xnow,ynow,xconv(xsc(x0)),yconv(ysc(y0))); + return; +} +iline(cx0,cy0,cx1,cy1){ + int maxp,tt,j,np; + char chx,chy; + float xd,yd; + float dist2(),sqrt(); + movep(cx0,cy0); + maxp = sqrt(dist2(cx0,cy0,cx1,cy1))/2.; + xd = cx1-cx0; + yd = cy1-cy0; + if(xd >= 0)chx = RIGHT; + else chx = LEFT; + if(yd >= 0)chy = UP; + else chy = DOWN; + if(maxp == 0){ + xd=0; + yd=0; + } + else{ + xd /= maxp; + yd /= maxp; + } + inplot(); + for (tt=0; tt<=maxp; tt++){ + j= cx0+xd*tt-xnow; + xnow += j; + j = abval(j); + while(j-- > 0)spew(chx); + j = cy0+yd*tt-ynow; + ynow += j; + j = abval(j); + while(j-- > 0)spew(chy); + spew ('.'); + } + outplot(); + return; +} |