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/****************************************************************************
**
** 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 QtLocation 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 TILEFRUSTUM_H
#define TILEFRUSTUM_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QVector3D>
#include <QHash>
#include <Qt3D/qplane3d.h>
class ViewportCamera;
class QGLCamera;
class Q_AUTOTEST_EXPORT Frustum
{
public:
enum Plane {
Near = 0x001,
Far = 0x002,
Right = 0x004,
Left = 0x008,
Top = 0x010,
Bottom = 0x020,
TopLeftNear = Top | Left | Near,
TopLeftFar = Top | Left | Far,
TopRightNear = Top | Right | Near,
TopRightFar = Top | Right | Far,
BottomLeftNear = Bottom | Left | Near,
BottomLeftFar = Bottom | Left | Far,
BottomRightNear = Bottom | Right | Near,
BottomRightFar = Bottom | Right | Far
};
Q_DECLARE_FLAGS(Planes, Plane)
Frustum();
void update(const ViewportCamera &camera);
void update(const QGLCamera *camera, double aspectRatio, bool updatePlanes = false);
bool contains(const QVector3D ¢er, double radius) const;
QVector3D topLeftNear() const {
return tln_;
}
QVector3D topLeftFar() const {
return tlf_;
}
QVector3D bottomLeftNear() const {
return bln_;
}
QVector3D bottomLeftFar() const {
return blf_;
}
QVector3D topRightNear() const {
return trn_;
}
QVector3D topRightFar() const {
return trf_;
}
QVector3D bottomRightNear() const {
return brn_;
}
QVector3D bottomRightFar() const {
return brf_;
}
QPlane3D plane(Planes planes) const;
private:
double hf_;
double wf_;
QVector3D cf_;
QVector3D tlf_;
QVector3D trf_;
QVector3D blf_;
QVector3D brf_;
double hn_;
double wn_;
QVector3D cn_;
QVector3D tln_;
QVector3D trn_;
QVector3D bln_;
QVector3D brn_;
QHash<Planes, QPlane3D> planeHash_;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(Frustum::Planes)
#endif // TILEFRUSTUM_H
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