01: /*
02: * $RCSfile: BadTransformException.java,v $
03: *
04: * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
06: *
07: * This code is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU General Public License version 2 only, as
09: * published by the Free Software Foundation. Sun designates this
10: * particular file as subject to the "Classpath" exception as provided
11: * by Sun in the LICENSE file that accompanied this code.
12: *
13: * This code is distributed in the hope that it will be useful, but WITHOUT
14: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: * version 2 for more details (a copy is included in the LICENSE file that
17: * accompanied this code).
18: *
19: * You should have received a copy of the GNU General Public License version
20: * 2 along with this work; if not, write to the Free Software Foundation,
21: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
22: *
23: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
24: * CA 95054 USA or visit www.sun.com if you need additional information or
25: * have any questions.
26: *
27: * $Revision: 1.5 $
28: * $Date: 2008/02/28 20:17:19 $
29: * $State: Exp $
30: */
31:
32: package javax.media.j3d;
33:
34: /**
35: * Indicates an attempt to use a Tranform3D object that is
36: * inappropriate for the object in which it is being used.
37: * For example:
38: * <ul>
39: * <li>
40: * Transforms that are used in the scene graph, within a TransformGroup
41: * node, must be affine. They may optionally contain a non-uniform
42: * scale and/or a shear, subject to other listed restrictions.
43: * <li>
44: * All transforms in the TransformGroup nodes above a ViewPlatform
45: * object must be congruent. This ensures that the Vworld coordinates to
46: * ViewPlatform coordinates transform is angle and length-preserving with
47: * no shear and only uniform scale.
48: * <li>
49: * Most viewing transforms other than those in the scene graph can
50: * only contain translation and rotation.
51: * <li>
52: * The projection transform is allowed to be non-affine, but it
53: * must either be a single point perspective projection or a parallel
54: * projection.
55: * </ul>
56: */
57: public class BadTransformException extends RuntimeException {
58:
59: /**
60: * Create the exception object with default values.
61: */
62: public BadTransformException() {
63: }
64:
65: /**
66: * Create the exception object that outputs message.
67: * @param str the message string to be output.
68: */
69: public BadTransformException(String str) {
70:
71: super(str);
72: }
73:
74: }
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