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

Collaboration diagram for QQuaternion:

Related Symbols
(Note that these are not member symbols.)
const QQuaternion	operator+ (const QQuaternion &q1, const QQuaternion &q2) noexcept
	Returns a QQuaternion object that is the sum of the given quaternions, q1 and q2; each component is added separately.

const QQuaternion	operator- (const QQuaternion &q1, const QQuaternion &q2) noexcept
	Returns a QQuaternion object that is formed by subtracting q2 from q1; each component is subtracted separately.

const QQuaternion	operator* (float factor, const QQuaternion &quaternion) noexcept
	Returns a copy of the given quaternion, multiplied by the given factor.

const QQuaternion	operator* (const QQuaternion &quaternion, float factor) noexcept
	Returns a copy of the given quaternion, multiplied by the given factor.

const QQuaternion	operator* (const QQuaternion &q1, const QQuaternion &q2) noexcept
	Multiplies q1 and q2 using quaternion multiplication.

const QQuaternion	operator- (const QQuaternion &quaternion) noexcept
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns a QQuaternion object that is formed by changing the sign of all three components of the given quaternion.

const QQuaternion	operator/ (const QQuaternion &quaternion, float divisor)
	Returns the QQuaternion object formed by dividing all components of the given quaternion by the given divisor.

QVector3D	operator* (const QQuaternion &quaternion, const QVector3D &vec) noexcept

bool	qFuzzyCompare (const QQuaternion &q1, const QQuaternion &q2) noexcept
	Returns `true` if q1 and q2 are equal, allowing for a small fuzziness factor for floating-point comparisons; false otherwise.

QDataStream &	operator<< (QDataStream &stream, const QQuaternion &quaternion)
	Writes the given quaternion to the given stream and returns a reference to the stream.

QDataStream &	operator>> (QDataStream &stream, QQuaternion &quaternion)
	Reads a quaternion from the given stream into the given quaternion and returns a reference to the stream.

Detailed Description

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

Since: 4.6

\inmodule QtGui

Quaternions are used to represent rotations in 3D space, and consist of a 3D rotation axis specified by the x, y, and z coordinates, and a scalar representing the rotation angle.

Friends And Related Symbol Documentation

◆ operator*() [1/4]

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

The result corresponds to applying both of the rotations specified by q1 and q2.

See also: QQuaternion::operator*=()

Definition at line 223 of file qquaternion.h.

◆ operator*() [2/4]

QVector3D operator*	(	const QQuaternion &	quaternion,
		const QVector3D &	vec )

Since: 5.5

Rotates a vector vec with a quaternion quaternion to produce a new vector in 3D space.

Definition at line 309 of file qquaternion.h.

◆ operator*() [3/4]

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

See also: QQuaternion::operator*=()

Definition at line 269 of file qquaternion.h.

◆ operator*() [4/4]

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

See also: QQuaternion::operator*=()

Definition at line 264 of file qquaternion.h.

◆ operator+()

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

See also: QQuaternion::operator+=()

Definition at line 254 of file qquaternion.h.

◆ operator-() [1/2]

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

See also: QQuaternion::operator-=()

Definition at line 259 of file qquaternion.h.

◆ operator-() [2/2]

const QQuaternion operator- ( const QQuaternion & quaternion )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns a QQuaternion object that is formed by changing the sign of all three components of the given quaternion.

Equivalent to {QQuaternion(0,0,0,0) - quaternion}.

Definition at line 274 of file qquaternion.h.

◆ operator/()

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

See also: QQuaternion::operator/=()

Definition at line 279 of file qquaternion.h.

◆ operator<<()

QDataStream & operator<<	(	QDataStream &	stream,
		const QQuaternion &	quaternion )

See also: {Serializing Qt Data Types}

Definition at line 958 of file qquaternion.cpp.

◆ operator>>()

QDataStream & operator>>	(	QDataStream &	stream,
		QQuaternion &	quaternion )

See also: {Serializing Qt Data Types}

Definition at line 975 of file qquaternion.cpp.

◆ qFuzzyCompare()

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

Definition at line 284 of file qquaternion.h.

References qFuzzyCompare().

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

qtbase/src/gui/math3d/qquaternion.cpp (f9f1272e7c438b79591032877f2b386af8085c3f)

Related Symbols