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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtQuick3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSPHERE3D_H
#define QSPHERE3D_H
#include "qt3dglobal.h"
#include <QtGui/qvector3d.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Qt3D)
class QMatrix4x4;
class QRay3D;
class QBox3D;
class QPlane3D;
class Q_QT3D_EXPORT QSphere3D
{
public:
QSphere3D();
QSphere3D(const QVector3D ¢er, qreal radius);
QVector3D center() const;
void setCenter(const QVector3D ¢er);
qreal radius() const;
void setRadius(qreal radius);
bool contains(const QVector3D &point) const;
bool intersects(const QRay3D &ray) const;
bool intersects(const QSphere3D &sphere) const;
bool intersects(const QBox3D &box) const;
bool intersects(const QPlane3D &plane) const;
bool intersection(const QRay3D &ray, qreal *minimum_t, qreal *maximum_t) const;
qreal intersection(const QRay3D &ray) const;
void transform(const QMatrix4x4 &matrix);
QSphere3D transformed(const QMatrix4x4 &matrix) const;
bool operator==(const QSphere3D &sphere) const;
bool operator!=(const QSphere3D &sphere) const;
private:
QVector3D m_center;
qreal m_radius;
};
inline QSphere3D::QSphere3D() : m_radius(1.0f) {}
inline QSphere3D::QSphere3D(const QVector3D ¢er, qreal radius)
: m_center(center), m_radius(radius) {}
inline QVector3D QSphere3D::center() const
{
return m_center;
}
inline void QSphere3D::setCenter(const QVector3D ¢er)
{
m_center = center;
}
inline qreal QSphere3D::radius() const
{
return m_radius;
}
inline void QSphere3D::setRadius(qreal radius)
{
m_radius = radius;
}
inline bool QSphere3D::contains(const QVector3D &point) const
{
return (point - m_center).lengthSquared() <= (m_radius * m_radius);
}
inline bool QSphere3D::intersects(const QSphere3D &sphere) const
{
qreal radsum = sphere.radius() + m_radius;
return (sphere.center() - m_center).lengthSquared() <= (radsum * radsum);
}
inline void QSphere3D::transform(const QMatrix4x4 &matrix)
{
*this = transformed(matrix);
}
inline bool QSphere3D::operator==(const QSphere3D &sphere) const
{
return m_center == sphere.m_center && m_radius == sphere.m_radius;
}
inline bool QSphere3D::operator!=(const QSphere3D &sphere) const
{
return m_center != sphere.m_center || m_radius != sphere.m_radius;
}
inline bool qFuzzyCompare(const QSphere3D &sphere1, const QSphere3D &sphere2)
{
return qFuzzyCompare(sphere1.center(), sphere2.center()) &&
qFuzzyCompare(sphere1.radius(), sphere2.radius());
}
#ifndef QT_NO_DEBUG_STREAM
Q_QT3D_EXPORT QDebug operator<<(QDebug dbg, const QSphere3D &sphere);
#endif
#ifndef QT_NO_DATASTREAM
Q_QT3D_EXPORT QDataStream &operator<<(QDataStream &stream, const QSphere3D &sphere);
Q_QT3D_EXPORT QDataStream &operator>>(QDataStream &stream, QSphere3D &sphere);
#endif
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QSphere3D)
QT_END_HEADER
#endif
|
