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Java > Open Source Codes > org > objectweb > proactive > examples > c3d > geom > Ray


1 /*
2 * ################################################################
3 *
4 * ProActive: The Java(TM) library for Parallel, Distributed,
5 * Concurrent computing with Security and Mobility
6 *
7 * Copyright (C) 1997-2002 INRIA/University of Nice-Sophia Antipolis
8 * Contact: proactive-support@inria.fr
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 * USA
24 *
25 * Initial developer(s): The ProActive Team
26 * http://www.inria.fr/oasis/ProActive/contacts.html
27 * Contributor(s):
28 *
29 * ################################################################
30 */
31 package org.objectweb.proactive.examples.c3d.geom;
32
33 final public class Ray implements java.io.Serializable JavaDoc {
34
35   public Vec P, D;
36
37
38   public Ray(Vec pnt, Vec dir) {
39     P = new Vec(pnt.x, pnt.y, pnt.z);
40     D = new Vec(dir.x, dir.y, dir.z);
41     D.normalize();
42   }
43
44
45   public Ray() {
46     P = new Vec();
47     D = new Vec();
48   }
49
50
51   public Vec point(double t) {
52     return new Vec(P.x + D.x * t, P.y + D.y * t, P.z + D.z * t);
53   }
54
55
56   public String JavaDoc toString() {
57     return "{" + P.toString() + " -> " + D.toString() + "}";
58   }
59 }
60
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