summaryrefslogtreecommitdiff
path: root/usr/src/ucbcmd/plot/libplot/t450/line.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr/src/ucbcmd/plot/libplot/t450/line.c')
-rw-r--r--usr/src/ucbcmd/plot/libplot/t450/line.c77
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;
+}