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
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSPHERE3D_H
#define QSPHERE3D_H
#include "smallqt3d_global.h"
#include <QtGui/qvector3d.h>
QT_BEGIN_NAMESPACE
class QMatrix4x4;
class QRay3D;
class QBox3D;
class QPlane3D;
class Q_MATH_3D_EXPORT QSphere3D
{
public:
QSphere3D();
QSphere3D(const QVector3D ¢er, float radius);
QVector3D center() const;
void setCenter(const QVector3D ¢er);
float radius() const;
void setRadius(float 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, float *minimum_t, float *maximum_t) const;
float 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;
float m_radius;
};
inline QSphere3D::QSphere3D() : m_radius(1.0f) {}
inline QSphere3D::QSphere3D(const QVector3D ¢er_, float 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 float QSphere3D::radius() const
{
return m_radius;
}
inline void QSphere3D::setRadius(float 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
{
float 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_MATH_3D_EXPORT QDebug operator<<(QDebug dbg, const QSphere3D &sphere);
#endif
#ifndef QT_NO_DATASTREAM
Q_MATH_3D_EXPORT QDataStream &operator<<(QDataStream &stream, const QSphere3D &sphere);
Q_MATH_3D_EXPORT QDataStream &operator>>(QDataStream &stream, QSphere3D &sphere);
#endif
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QSphere3D)
#endif
|
