qquaternion.h File Reference

#include <QtGui/qvector3d.h>
#include <QtGui/qvector4d.h>

Go to the source code of this file.

Classes
class	QQuaternion
	The QQuaternion class represents a quaternion consisting of a vector and scalar. More...

Functions
bool	operator!= (const QQuaternion &q1, const QQuaternion &q2)
const QQuaternion	operator* (const QQuaternion &q1, const QQuaternion &q2)
const QQuaternion	operator* (qreal factor, const QQuaternion &quaternion)
const QQuaternion	operator* (const QQuaternion &quaternion, qreal factor)
const QQuaternion	operator+ (const QQuaternion &q1, const QQuaternion &q2)
const QQuaternion	operator- (const QQuaternion &q1, const QQuaternion &q2)
const QQuaternion	operator- (const QQuaternion &quaternion)
const QQuaternion	operator/ (const QQuaternion &quaternion, qreal divisor)
Q_GUI_EXPORT QDebug	operator<< (QDebug dbg, const QQuaternion &q)
Q_GUI_EXPORT QDataStream &	operator<< (QDataStream &, const QQuaternion &)
bool	operator== (const QQuaternion &q1, const QQuaternion &q2)
Q_GUI_EXPORT QDataStream &	operator>> (QDataStream &, QQuaternion &)
	Q_DECLARE_TYPEINFO (QQuaternion, Q_MOVABLE_TYPE)
bool	qFuzzyCompare (const QQuaternion &q1, const QQuaternion &q2)

Function Documentation

operator!=()

bool operator!= ( const QQuaternion &  q1, const QQuaternion &  q2  )

inline

Definition at line 234 of file qquaternion.h.

{
    return q1.xp != q2.xp || q1.yp != q2.yp || q1.zp != q2.zp || q1.wp != q2.wp;
}

operator*() [1/3]

const QQuaternion operator* ( const QQuaternion &  q1, const QQuaternion &  q2  )

inline

Definition at line 198 of file qquaternion.h.

{
    qreal ww = (q1.zp + q1.xp) * (q2.xp + q2.yp);
    qreal yy = (q1.wp - q1.yp) * (q2.wp + q2.zp);
    qreal zz = (q1.wp + q1.yp) * (q2.wp - q2.zp);
    qreal xx = ww + yy + zz;
    qreal qq = 0.5 * (xx + (q1.zp - q1.xp) * (q2.xp - q2.yp));

    qreal w = qq - ww + (q1.zp - q1.yp) * (q2.yp - q2.zp);
    qreal x = qq - xx + (q1.xp + q1.wp) * (q2.xp + q2.wp);
    qreal y = qq - yy + (q1.wp - q1.xp) * (q2.yp + q2.zp);
    qreal z = qq - zz + (q1.zp + q1.yp) * (q2.wp - q2.xp);

    return QQuaternion(w, x, y, z);
}

operator*() [2/3]

const QQuaternion operator* ( qreal  factor, const QQuaternion &  quaternion  )

inline

Definition at line 249 of file qquaternion.h.

{
    return QQuaternion(quaternion.wp * factor, quaternion.xp * factor, quaternion.yp * factor, quaternion.zp * factor);
}

operator*() [3/3]

const QQuaternion operator* ( const QQuaternion &  quaternion, qreal  factor  )

inline

Definition at line 254 of file qquaternion.h.

{
    return QQuaternion(quaternion.wp * factor, quaternion.xp * factor, quaternion.yp * factor, quaternion.zp * factor);
}

operator+()

const QQuaternion operator+ ( const QQuaternion &  q1, const QQuaternion &  q2  )

inline

Definition at line 239 of file qquaternion.h.

{
    return QQuaternion(q1.wp + q2.wp, q1.xp + q2.xp, q1.yp + q2.yp, q1.zp + q2.zp);
}

operator-() [1/2]

const QQuaternion operator- ( const QQuaternion &  q1, const QQuaternion &  q2  )

inline

Definition at line 244 of file qquaternion.h.

{
    return QQuaternion(q1.wp - q2.wp, q1.xp - q2.xp, q1.yp - q2.yp, q1.zp - q2.zp);
}

operator-() [2/2]

const QQuaternion operator- ( const QQuaternion &  quaternion )

inline

Definition at line 259 of file qquaternion.h.

{
    return QQuaternion(-quaternion.wp, -quaternion.xp, -quaternion.yp, -quaternion.zp);
}

operator/()

const QQuaternion operator/ ( const QQuaternion &  quaternion, qreal  divisor  )

inline

Definition at line 264 of file qquaternion.h.

{
    return QQuaternion(quaternion.wp / divisor, quaternion.xp / divisor, quaternion.yp / divisor, quaternion.zp / divisor);
}

operator<<() [1/2]

Q_GUI_EXPORT QDebug operator<<	(	QDebug	dbg,
		const QQuaternion &	q
	)

Definition at line 666 of file qquaternion.cpp.

{
    dbg.nospace() << "QQuaternion(scalar:" << q.scalar()
        << ", vector:(" << q.x() << ", "
        << q.y() << ", " << q.z() << "))";
    return dbg.space();
}

operator<<() [2/2]

Q_GUI_EXPORT QDataStream& operator<< ( QDataStream &  , const QQuaternion &    )

related

Definition at line 691 of file qquaternion.cpp.

{
    stream << double(quaternion.scalar()) << double(quaternion.x())
           << double(quaternion.y()) << double(quaternion.z());
    return stream;
}

operator==()

bool operator== ( const QQuaternion &  q1, const QQuaternion &  q2  )

inline

Definition at line 229 of file qquaternion.h.

{
    return q1.xp == q2.xp && q1.yp == q2.yp && q1.zp == q2.zp && q1.wp == q2.wp;
}

operator>>()

Q_GUI_EXPORT QDataStream& operator>> ( QDataStream &  , QQuaternion &    )

related

Definition at line 711 of file qquaternion.cpp.

{
    double scalar, x, y, z;
    stream >> scalar;
    stream >> x;
    stream >> y;
    stream >> z;
    quaternion.setScalar(qreal(scalar));
    quaternion.setX(qreal(x));
    quaternion.setY(qreal(y));
    quaternion.setZ(qreal(z));
    return stream;
}

Q_DECLARE_TYPEINFO()

Q_DECLARE_TYPEINFO	(	QQuaternion	,
		Q_MOVABLE_TYPE
	)

qFuzzyCompare()

bool qFuzzyCompare ( const QQuaternion &  q1, const QQuaternion &  q2  )

inline

Definition at line 269 of file qquaternion.h.

{
    return qFuzzyCompare(q1.xp, q2.xp) &&
           qFuzzyCompare(q1.yp, q2.yp) &&
           qFuzzyCompare(q1.zp, q2.zp) &&
           qFuzzyCompare(q1.wp, q2.wp);
}