QQuaternion Class Reference

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Detailed Description

Definition at line 59 of file qquaternion.h.

#include <qquaternion.h>

List of all members.

Public Member Functions
	QQuaternion ()
	QQuaternion (qreal scalar, qreal xpos, qreal ypos, qreal zpos)
	QQuaternion (qreal scalar, const QVector3D &vector)
	QQuaternion (const QVector4D &vector)
bool	isNull () const
bool	isIdentity () const
QVector3D	vector () const
void	setVector (const QVector3D &vector)
void	setVector (qreal x, qreal y, qreal z)
qreal	x () const
qreal	y () const
qreal	z () const
qreal	scalar () const
void	setX (qreal x)
void	setY (qreal y)
void	setZ (qreal z)
void	setScalar (qreal scalar)
qreal	length () const
qreal	lengthSquared () const
QQuaternion	normalized () const
void	normalize ()
QQuaternion	conjugate () const
QVector3D	rotatedVector (const QVector3D &vector) const
QQuaternion &	operator+= (const QQuaternion &quaternion)
QQuaternion &	operator-= (const QQuaternion &quaternion)
QQuaternion &	operator*= (qreal factor)
QQuaternion &	operator*= (const QQuaternion &quaternion)
QQuaternion &	operator/= (qreal divisor)
QVector4D	toVector4D () const
	operator QVariant () const
Static Public Member Functions
static QQuaternion	fromAxisAndAngle (const QVector3D &axis, qreal angle)
static QQuaternion	fromAxisAndAngle (qreal x, qreal y, qreal z, qreal angle)
static QQuaternion	slerp (const QQuaternion &q1, const QQuaternion &q2, qreal t)
static QQuaternion	nlerp (const QQuaternion &q1, const QQuaternion &q2, qreal t)
Friends
bool	operator== (const QQuaternion &q1, const QQuaternion &q2)
bool	operator!= (const QQuaternion &q1, const QQuaternion &q2)
const QQuaternion	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 &quaternion)
const QQuaternion	operator/ (const QQuaternion &quaternion, qreal divisor)
bool	qFuzzyCompare (const QQuaternion &q1, const QQuaternion &q2)

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Constructor & Destructor Documentation

QQuaternion

(

)

[inline]

Definition at line 141 of file qquaternion.h.

: wp(1.0f), xp(0.0f), yp(0.0f), zp(0.0f) {}

QQuaternion	(	qreal	scalar,
		qreal	xpos,
		qreal	ypos,
		qreal	zpos
	)		[inline]

Definition at line 143 of file qquaternion.h.

: wp(aScalar), xp(xpos), yp(ypos), zp(zpos) {}

QQuaternion	(	qreal	scalar,
		const QVector3D &	vector
	)		[inline]

Definition at line 279 of file qquaternion.h.

    : wp(aScalar), xp(aVector.x()), yp(aVector.y()), zp(aVector.z()) {}

QQuaternion

(

const QVector4D &

vector

)

[inline, explicit]

Definition at line 305 of file qquaternion.h.

    : wp(aVector.w()), xp(aVector.x()), yp(aVector.y()), zp(aVector.z()) {}

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Member Function Documentation

bool isNull

(

)

const [inline]

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Definition at line 146 of file qquaternion.h.

{
    return qIsNull(xp) && qIsNull(yp) && qIsNull(zp) && qIsNull(wp);
}

bool isIdentity

(

)

const [inline]

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Definition at line 151 of file qquaternion.h.

{
    return qIsNull(xp) && qIsNull(yp) && qIsNull(zp) && wp == 1.0f;
}

QVector3D vector

(

)

const [inline]

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Definition at line 289 of file qquaternion.h.

{
    return QVector3D(xp, yp, zp);
}

void setVector

(

const QVector3D &

vector

)

[inline]

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Definition at line 282 of file qquaternion.h.

{
    xp = aVector.x();
    yp = aVector.y();
    zp = aVector.z();
}

void setVector	(	qreal	x,
		qreal	y,
		qreal	z
	)		[inline]

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Definition at line 296 of file qquaternion.h.

{
    xp = aX;
    yp = aY;
    zp = aZ;
}

qreal x

(

)

const [inline]

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Definition at line 156 of file qquaternion.h.

{ return qreal(xp); }

qreal y

(

)

const [inline]

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Definition at line 157 of file qquaternion.h.

{ return qreal(yp); }

qreal z

(

)

const [inline]

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Definition at line 158 of file qquaternion.h.

{ return qreal(zp); }

qreal scalar

(

)

const [inline]

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Definition at line 159 of file qquaternion.h.

{ return qreal(wp); }

void setX

(

qreal

x

)

[inline]

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Definition at line 161 of file qquaternion.h.

{ xp = aX; }

void setY

(

qreal

y

)

[inline]

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Definition at line 162 of file qquaternion.h.

{ yp = aY; }

void setZ

(

qreal

z

)

[inline]

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Definition at line 163 of file qquaternion.h.

{ zp = aZ; }

void setScalar

(

qreal

scalar

)

[inline]

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Definition at line 164 of file qquaternion.h.

{ wp = aScalar; }

qreal length

(

)

const

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qreal lengthSquared

(

)

const

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QQuaternion normalized

(

)

const

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void normalize

(

)

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QQuaternion conjugate

(

)

const [inline]

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Definition at line 166 of file qquaternion.h.

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

QVector3D rotatedVector

(

const QVector3D &

vector

)

const

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QQuaternion & operator+=

(

const QQuaternion &

quaternion

)

[inline]

Definition at line 171 of file qquaternion.h.

{
    xp += quaternion.xp;
    yp += quaternion.yp;
    zp += quaternion.zp;
    wp += quaternion.wp;
    return *this;
}

QQuaternion & operator-=

(

const QQuaternion &

quaternion

)

[inline]

Definition at line 180 of file qquaternion.h.

{
    xp -= quaternion.xp;
    yp -= quaternion.yp;
    zp -= quaternion.zp;
    wp -= quaternion.wp;
    return *this;
}

QQuaternion & operator*=

(

qreal

factor

)

[inline]

Definition at line 189 of file qquaternion.h.

{
    xp *= factor;
    yp *= factor;
    zp *= factor;
    wp *= factor;
    return *this;
}

QQuaternion & operator*=

(

const QQuaternion &

quaternion

)

[inline]

Definition at line 214 of file qquaternion.h.

{
    *this = *this * quaternion;
    return *this;
}

QQuaternion & operator/=

(

qreal

divisor

)

[inline]

Definition at line 220 of file qquaternion.h.

{
    xp /= divisor;
    yp /= divisor;
    zp /= divisor;
    wp /= divisor;
    return *this;
}

QVector4D toVector4D

(

)

const [inline]

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Definition at line 308 of file qquaternion.h.

{
    return QVector4D(xp, yp, zp, wp);
}

operator QVariant

(

)

const

static QQuaternion fromAxisAndAngle	(	const QVector3D &	axis,
		qreal	angle
	)		[static]

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static QQuaternion fromAxisAndAngle	(	qreal	x,
		qreal	y,
		qreal	z,
		qreal	angle
	)		[static]

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static QQuaternion slerp	(	const QQuaternion &	q1,
		const QQuaternion &	q2,
		qreal	t
	)		[static]

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static QQuaternion nlerp	(	const QQuaternion &	q1,
		const QQuaternion &	q2,
		qreal	t
	)		[static]

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Friends And Related Function Documentation

bool operator==	(	const QQuaternion &	q1,
		const QQuaternion &	q2
	)		[friend]

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;
}

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

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;
}

const QQuaternion operator+	(	const QQuaternion &	q1,
		const QQuaternion &	q2
	)		[friend]

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);
}

const QQuaternion operator-	(	const QQuaternion &	q1,
		const QQuaternion &	q2
	)		[friend]

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);
}

const QQuaternion operator*	(	qreal	factor,
		const QQuaternion &	quaternion
	)		[friend]

Definition at line 249 of file qquaternion.h.

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

const QQuaternion operator*	(	const QQuaternion &	quaternion,
		qreal	factor
	)		[friend]

Definition at line 254 of file qquaternion.h.

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

const QQuaternion operator*	(	const QQuaternion &	q1,
		const QQuaternion &	q2
	)		[friend]

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);
}

const QQuaternion operator-

(

const QQuaternion &

quaternion

)

[friend]

Definition at line 259 of file qquaternion.h.

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

const QQuaternion operator/	(	const QQuaternion &	quaternion,
		qreal	divisor
	)		[friend]

Definition at line 264 of file qquaternion.h.

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

bool qFuzzyCompare	(	const QQuaternion &	q1,
		const QQuaternion &	q2
	)		[friend]

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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);
}

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The documentation for this class was generated from the following file:

• QtGui/qquaternion.h