QQuaternion ¶

概要 ¶

详细描述 ¶

class PySide.QtGui. QQuaternion ¶

class PySide.QtGui. QQuaternion ( QQuaternion )

class PySide.QtGui. QQuaternion ( vector )

class PySide.QtGui. QQuaternion ( scalar , vector )

class PySide.QtGui. QQuaternion ( scalar , xpos , ypos , zpos )

参数：	vector – PySide.QtGui.QVector4D QQuaternion – PySide.QtGui.QQuaternion zpos – PySide.QtCore.qreal scalar – PySide.QtCore.qreal ypos – PySide.QtCore.qreal xpos – PySide.QtCore.qreal

Constructs an identity quaternion, i.e. with coordinates (1, 0, 0, 0).

Constructs a quaternion from the components of vector .

Constructs a quaternion vector from the specified vector and scalar .

另请参阅

PySide.QtGui.QQuaternion.vector() PySide.QtGui.QQuaternion.scalar()

Constructs a quaternion with the vector ( xpos , ypos , zpos ) and scalar .

PySide.QtGui.QQuaternion. __reduce__ ( ) ¶

返回类型：	PyObject

PySide.QtGui.QQuaternion. __repr__ ( ) ¶

返回类型：	PyObject

PySide.QtGui.QQuaternion. conjugate ( ) ¶

返回类型：	PySide.QtGui.QQuaternion

Returns the conjugate of this quaternion, which is (-x, -y, -z, scalar).

static PySide.QtGui.QQuaternion. fromAxisAndAngle ( x , y , z , angle ) ¶

参数：	x – PySide.QtCore.qreal y – PySide.QtCore.qreal z – PySide.QtCore.qreal angle – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

Creates a normalized quaternion that corresponds to rotating through angle degrees about the 3D axis ( x , y , z ).

static PySide.QtGui.QQuaternion. fromAxisAndAngle ( axis , angle )

参数：	axis – PySide.QtGui.QVector3D angle – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

Creates a normalized quaternion that corresponds to rotating through angle degrees about the specified 3D axis .

PySide.QtGui.QQuaternion. isIdentity ( ) ¶

返回类型：	PySide.QtCore.bool

Returns true if the x, y, and z components of this quaternion are set to 0.0, and the scalar component is set to 1.0; otherwise returns false.

PySide.QtGui.QQuaternion. isNull ( ) ¶

返回类型：	PySide.QtCore.bool

Returns true if the x, y, z, and scalar components of this quaternion are set to 0.0; otherwise returns false.

PySide.QtGui.QQuaternion. length ( ) ¶

返回类型：	PySide.QtCore.qreal

Returns the length of the quaternion. This is also called the “norm”.

另请参阅

PySide.QtGui.QQuaternion.lengthSquared() PySide.QtGui.QQuaternion.normalized()

PySide.QtGui.QQuaternion. lengthSquared ( ) ¶

返回类型：	PySide.QtCore.qreal

Returns the squared length of the quaternion.

另请参阅

PySide.QtGui.QQuaternion.length()

static PySide.QtGui.QQuaternion. nlerp ( q1 , q2 , t ) ¶

参数：	q1 – PySide.QtGui.QQuaternion q2 – PySide.QtGui.QQuaternion t – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

Interpolates along the shortest linear path between the rotational positions q1 and q2 。值 t should be between 0 and 1, indicating the distance to travel between q1 and q2 . The result will be PySide.QtGui.QQuaternion.normalized() .

若 t is less than or equal to 0, then q1 will be returned. If t is greater than or equal to 1, then q2 将被返回。

PySide.QtGui.QQuaternion.nlerp() function is typically faster than PySide.QtGui.QQuaternion.slerp() and will give approximate results to spherical interpolation that are good enough for some applications.

另请参阅

PySide.QtGui.QQuaternion.slerp()

PySide.QtGui.QQuaternion. normalize ( ) ¶

Normalizes the currect quaternion in place. Nothing happens if this is a null quaternion or the length of the quaternion is very close to 1.

另请参阅

PySide.QtGui.QQuaternion.length() PySide.QtGui.QQuaternion.normalized()

PySide.QtGui.QQuaternion. normalized ( ) ¶

返回类型：	PySide.QtGui.QQuaternion

Returns the normalized unit form of this quaternion.

If this quaternion is null, then a null quaternion is returned. If the length of the quaternion is very close to 1, then the quaternion will be returned as-is. Otherwise the normalized form of the quaternion of length 1 will be returned.

另请参阅

PySide.QtGui.QQuaternion.length() PySide.QtGui.QQuaternion.normalize()

PySide.QtGui.QQuaternion. __ne__ ( q2 ) ¶

参数：	q2 – PySide.QtGui.QQuaternion
返回类型：	PySide.QtCore.bool

PySide.QtGui.QQuaternion. __mul__ ( factor ) ¶

参数：	factor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

PySide.QtGui.QQuaternion. __mul__ ( factor )

参数：	factor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

PySide.QtGui.QQuaternion. __mul__ ( q2 )

参数：	q2 – PySide.QtGui.QQuaternion
返回类型：	PySide.QtGui.QQuaternion

PySide.QtGui.QQuaternion. __imul__ ( factor ) ¶

参数：	factor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

Multiplies this quaternion's components by the given factor , and returns a reference to this quaternion.

另请参阅

PySide.QtGui.QQuaternion.operator/=()

PySide.QtGui.QQuaternion. __imul__ ( quaternion )

参数：	quaternion – PySide.QtGui.QQuaternion
返回类型：	PySide.QtGui.QQuaternion

Multiplies this quaternion by quaternion and returns a reference to this quaternion.

PySide.QtGui.QQuaternion. __add__ ( q2 ) ¶

参数：	q2 – PySide.QtGui.QQuaternion
返回类型：	PySide.QtGui.QQuaternion

PySide.QtGui.QQuaternion. __iadd__ ( quaternion ) ¶

参数：	quaternion – PySide.QtGui.QQuaternion
返回类型：	PySide.QtGui.QQuaternion

添加给定 quaternion to this quaternion and returns a reference to this quaternion.

另请参阅

PySide.QtGui.QQuaternion.operator-=()

PySide.QtGui.QQuaternion. __sub__ ( ) ¶

返回类型：	PySide.QtGui.QQuaternion

PySide.QtGui.QQuaternion. __sub__ ( q2 )

参数：	q2 – PySide.QtGui.QQuaternion
返回类型：	PySide.QtGui.QQuaternion

PySide.QtGui.QQuaternion. __isub__ ( quaternion ) ¶

参数：	quaternion – PySide.QtGui.QQuaternion
返回类型：	PySide.QtGui.QQuaternion

Subtracts the given quaternion from this quaternion and returns a reference to this quaternion.

另请参阅

PySide.QtGui.QQuaternion.operator+=()

PySide.QtGui.QQuaternion. __div__ ( divisor ) ¶

参数：	divisor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

PySide.QtGui.QQuaternion. __idiv__ ( divisor ) ¶

参数：	divisor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

Divides this quaternion's components by the given divisor , and returns a reference to this quaternion.

另请参阅

PySide.QtGui.QQuaternion.operator*=()

PySide.QtGui.QQuaternion. __eq__ ( q2 ) ¶

参数：	q2 – PySide.QtGui.QQuaternion
返回类型：	PySide.QtCore.bool

PySide.QtGui.QQuaternion. rotatedVector ( vector ) ¶

参数：	vector – PySide.QtGui.QVector3D
返回类型：	PySide.QtGui.QVector3D

Rotates vector with this quaternion to produce a new vector in 3D space. The following code:

QVector3D result = q.rotatedVector(vector);
										

is equivalent to the following:

QVector3D result = (q * QQuaternion(0, vector) * q.conjugate()).vector();
										

PySide.QtGui.QQuaternion. scalar ( ) ¶

返回类型：	PySide.QtCore.qreal

Returns the scalar component of this quaternion.

另请参阅

PySide.QtGui.QQuaternion.setScalar() PySide.QtGui.QQuaternion.x() PySide.QtGui.QQuaternion.y() PySide.QtGui.QQuaternion.z()

PySide.QtGui.QQuaternion. setScalar ( scalar ) ¶

参数：	scalar – PySide.QtCore.qreal

Sets the scalar component of this quaternion to scalar .

另请参阅

PySide.QtGui.QQuaternion.scalar() PySide.QtGui.QQuaternion.setX() PySide.QtGui.QQuaternion.setY() PySide.QtGui.QQuaternion.setZ()

PySide.QtGui.QQuaternion. setVector ( vector ) ¶

参数：	vector – PySide.QtGui.QVector3D

Sets the vector component of this quaternion to vector .

另请参阅

PySide.QtGui.QQuaternion.vector() PySide.QtGui.QQuaternion.setScalar()

PySide.QtGui.QQuaternion. setVector ( x , y , z )

参数：	x – PySide.QtCore.qreal y – PySide.QtCore.qreal z – PySide.QtCore.qreal

Sets the vector component of this quaternion to ( x , y , z ).

另请参阅

PySide.QtGui.QQuaternion.vector() PySide.QtGui.QQuaternion.setScalar()

PySide.QtGui.QQuaternion. setX ( x ) ¶

参数：	x – PySide.QtCore.qreal

Sets the x coordinate of this quaternion's vector to the given x 坐标。

另请参阅

PySide.QtGui.QQuaternion.x() PySide.QtGui.QQuaternion.setY() PySide.QtGui.QQuaternion.setZ() PySide.QtGui.QQuaternion.setScalar()

PySide.QtGui.QQuaternion. setY ( y ) ¶

参数：	y – PySide.QtCore.qreal

Sets the y coordinate of this quaternion's vector to the given y 坐标。

另请参阅

PySide.QtGui.QQuaternion.y() PySide.QtGui.QQuaternion.setX() PySide.QtGui.QQuaternion.setZ() PySide.QtGui.QQuaternion.setScalar()

PySide.QtGui.QQuaternion. setZ ( z ) ¶

参数：	z – PySide.QtCore.qreal

Sets the z coordinate of this quaternion's vector to the given z 坐标。

另请参阅

PySide.QtGui.QQuaternion.z() PySide.QtGui.QQuaternion.setX() PySide.QtGui.QQuaternion.setY() PySide.QtGui.QQuaternion.setScalar()

static PySide.QtGui.QQuaternion. slerp ( q1 , q2 , t ) ¶

参数：	q1 – PySide.QtGui.QQuaternion q2 – PySide.QtGui.QQuaternion t – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QQuaternion

Interpolates along the shortest spherical path between the rotational positions q1 and q2 。值 t should be between 0 and 1, indicating the spherical distance to travel between q1 and q2 .

若 t is less than or equal to 0, then q1 will be returned. If t is greater than or equal to 1, then q2 将被返回。

另请参阅

PySide.QtGui.QQuaternion.nlerp()

PySide.QtGui.QQuaternion. toVector4D ( ) ¶

返回类型：	PySide.QtGui.QVector4D

Returns this quaternion as a 4D vector.

PySide.QtGui.QQuaternion. vector ( ) ¶

返回类型：	PySide.QtGui.QVector3D

Returns the vector component of this quaternion.

另请参阅

PySide.QtGui.QQuaternion.setVector() PySide.QtGui.QQuaternion.scalar()

PySide.QtGui.QQuaternion. x ( ) ¶

返回类型：	PySide.QtCore.qreal

Returns the x coordinate of this quaternion's vector.

另请参阅

PySide.QtGui.QQuaternion.setX() PySide.QtGui.QQuaternion.y() PySide.QtGui.QQuaternion.z() PySide.QtGui.QQuaternion.scalar()

PySide.QtGui.QQuaternion. y ( ) ¶

返回类型：	PySide.QtCore.qreal

Returns the y coordinate of this quaternion's vector.

另请参阅

PySide.QtGui.QQuaternion.setY() PySide.QtGui.QQuaternion.x() PySide.QtGui.QQuaternion.z() PySide.QtGui.QQuaternion.scalar()

PySide.QtGui.QQuaternion. z ( ) ¶

返回类型：	PySide.QtCore.qreal

Returns the z coordinate of this quaternion's vector.

另请参阅

PySide.QtGui.QQuaternion.setZ() PySide.QtGui.QQuaternion.x() PySide.QtGui.QQuaternion.y() PySide.QtGui.QQuaternion.scalar()