1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* Copyright 1998-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package javax.media.j3d;
import javax.vecmath.Point3d;
import javax.vecmath.Point4d;
/**
* PickBounds is a finite pick shape defined with a Bounds object. It can
* be used as an argument to the picking methods in BranchGroup and Locale.
*
* @see BranchGroup#pickAll
* @see Locale#pickAll
*/
public final class PickBounds extends PickShape {
Bounds bounds;
/**
* Constructs an empty PickBounds. The bounds object is set to null.
*/
public PickBounds() {
bounds = null;
}
/**
* Constructs a PickBounds from the specified bounds object.
* @param boundsObject the bounds of this PickBounds.
*/
public PickBounds(Bounds boundsObject) {
bounds = boundsObject;
}
/**
* Sets the bounds object of this PickBounds to the specified object.
* @param boundsObject the new bounds of this PickBounds.
*/
public void set(Bounds boundsObject) {
bounds = boundsObject;
}
/**
* Gets the bounds object from this PickBounds.
* @return the bounds.
*/
public Bounds get() {
return bounds;
}
/**
* Return true if shape intersect with bounds.
* The point of intersection is stored in pickPos.
*/
@Override
final boolean intersect(Bounds bounds, Point4d pickPos) {
return bounds.intersect(this.bounds, pickPos);
}
// Only use within J3D.
// Return a new PickBounds that is the transformed (t3d) of this pickBounds.
@Override
PickShape transform(Transform3D t3d) {
// If the bounds is a BoundingBox, then the transformed bounds will
// get bigger. So this is a potential bug, and we'll have to deal with
// if there is a complain.
Bounds newBds = (Bounds)bounds.clone();
newBds.transform(t3d);
PickBounds newPB = new PickBounds(newBds);
return newPB;
}
@Override
Point3d getStartPoint() {
return bounds.getCenter();
}
@Override
int getPickType() {
return (bounds != null ? bounds.getPickType() :
PickShape.PICKUNKNOWN);
}
}
|
