PySide 模块

PySide.QtGui

QVector3D ¶

注意

该类在 Qt4.6 引入

概要 ¶

函数 ¶

def __add__ (, v2)
def __div__ (, divisor)
def __eq__ (, v2)
def __iadd__ (vector)
def __idiv__ (divisor)
def __imul__ (factor)
def __imul__ (vector)
def __isub__ (vector)
def __mul__ (, factor)
def __mul__ (, matrix)
def __mul__ (, v2)
def __mul__ (factor)
def __mul__ (matrix)
def __ne__ (, v2)
def __reduce__ ()
def __repr__ ()
def __sub__ ()
def __sub__ (, v2)
def distanceToLine (point, direction)
def distanceToPlane (plane, normal)
def distanceToPlane (plane1, plane2, plane3)
def isNull ()
def length ()
def lengthSquared ()
def normalize ()
def normalized ()
def setX (x)
def setY (y)
def setZ (z)
def toPoint ()
def toPointF ()
def toTuple ()
def toVector2D ()
def toVector4D ()
def x ()
def y ()
def z ()

静态函数 ¶

def crossProduct (v1, v2)
def dotProduct (v1, v2)
def normal (v1, v2)
def normal (v1, v2, v3)

详细描述 ¶

PySide.QtGui.QVector3D class represents a vector or vertex in 3D space.

Vectors are one of the main building blocks of 3D representation and drawing. They consist of three coordinates, traditionally called x, y, and z.

PySide.QtGui.QVector3D class can also be used to represent vertices in 3D space. We therefore do not need to provide a separate vertex class.

注意

By design values in the PySide.QtGui.QVector3D instance are stored as float . This means that on platforms where the qreal arguments to PySide.QtGui.QVector3D functions are represented by double values, it is possible to lose precision.

另请参阅

PySide.QtGui.QVector2D PySide.QtGui.QVector4D PySide.QtGui.QQuaternion

class PySide.QtGui. QVector3D ¶

class PySide.QtGui. QVector3D ( point )

class PySide.QtGui. QVector3D ( vector )

class PySide.QtGui. QVector3D ( vector , zpos )

class PySide.QtGui. QVector3D ( QVector3D )

class PySide.QtGui. QVector3D ( vector )

class PySide.QtGui. QVector3D ( xpos , ypos , zpos )

参数：	vector – `PySide.QtGui.QVector2D` point – `PySide.QtCore.QPoint` zpos – `PySide.QtCore.qreal` ypos – `PySide.QtCore.qreal` xpos – `PySide.QtCore.qreal` QVector3D – `PySide.QtGui.QVector3D`

构造 null 向量，即：采用坐标 (0, 0, 0)。

Constructs a vector with x and y coordinates from a 2D point , and a z coordinate of 0.

构造 3D 向量从指定 2D vector 。z 坐标被设为 0。

另请参阅

PySide.QtGui.QVector3D.toVector2D()

构造 3D 向量从指定 2D vector 。z 坐标被设为 zpos .

另请参阅

PySide.QtGui.QVector3D.toVector2D()

构造 3D 向量从指定 4D vector . The w coordinate is dropped.

另请参阅

PySide.QtGui.QVector3D.toVector4D()

构造向量采用坐标 ( xpos , ypos , zpos ).

PySide.QtGui.QVector3D. __reduce__ ( ) ¶

返回类型：	`PyObject`

PySide.QtGui.QVector3D. __repr__ ( ) ¶

返回类型：	`PyObject`

static PySide.QtGui.QVector3D. crossProduct ( v1 , v2 ) ¶

参数：	v1 – `PySide.QtGui.QVector3D` v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtGui.QVector3D`

Returns the cross-product of vectors v1 and v2 , which corresponds to the normal vector of a plane defined by v1 and v2 .

另请参阅

PySide.QtGui.QVector3D.normal()

PySide.QtGui.QVector3D. distanceToLine ( point , direction ) ¶

参数：	point – `PySide.QtGui.QVector3D` direction – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtCore.qreal`

Returns the distance that this vertex is from a line defined by point and the unit vector direction .

若 direction is a null vector, then it does not define a line. In that case, the distance from point to this vertex is returned.

另请参阅

PySide.QtGui.QVector3D.distanceToPlane()

PySide.QtGui.QVector3D. distanceToPlane ( plane1 , plane2 , plane3 ) ¶

参数：	plane1 – `PySide.QtGui.QVector3D` plane2 – `PySide.QtGui.QVector3D` plane3 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtCore.qreal`

这是重载函数。

Returns the distance from this vertex a plane defined by the vertices plane1 , plane2 and plane3 .

The return value will be negative if the vertex is below the plane, or zero if it is on the plane.

The two vectors that define the plane are plane2 - plane1 and plane3 - plane1 .

另请参阅

PySide.QtGui.QVector3D.normal() PySide.QtGui.QVector3D.distanceToLine()

PySide.QtGui.QVector3D. distanceToPlane ( plane , normal )

参数：	plane – `PySide.QtGui.QVector3D` normal – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtCore.qreal`

Returns the distance from this vertex to a plane defined by the vertex plane 和 normal unit vector. The normal parameter is assumed to have been normalized to a unit vector.

The return value will be negative if the vertex is below the plane, or zero if it is on the plane.

另请参阅

PySide.QtGui.QVector3D.normal() PySide.QtGui.QVector3D.distanceToLine()

static PySide.QtGui.QVector3D. dotProduct ( v1 , v2 ) ¶

参数：	v1 – `PySide.QtGui.QVector3D` v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtCore.qreal`

Returns the dot product of v1 and v2 .

PySide.QtGui.QVector3D. isNull ( ) ¶

返回类型：	`PySide.QtCore.bool`

Returns true if the x, y, and z coordinates are set to 0.0, otherwise returns false.

PySide.QtGui.QVector3D. length ( ) ¶

返回类型：	`PySide.QtCore.qreal`

从原点返回向量长度。

另请参阅

PySide.QtGui.QVector3D.lengthSquared() PySide.QtGui.QVector3D.normalized()

PySide.QtGui.QVector3D. lengthSquared ( ) ¶

返回类型：	`PySide.QtCore.qreal`

Returns the squared length of the vector from the origin. This is equivalent to the dot product of the vector with itself.

另请参阅

PySide.QtGui.QVector3D.length() PySide.QtGui.QVector3D.dotProduct()

static PySide.QtGui.QVector3D. normal ( v1 , v2 , v3 ) ¶

参数：	v1 – `PySide.QtGui.QVector3D` v2 – `PySide.QtGui.QVector3D` v3 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtGui.QVector3D`

这是重载函数。

Returns the normal vector of a plane defined by vectors v2 - v1 and v3 - v1 , normalized to be a unit vector.

使用 PySide.QtGui.QVector3D.crossProduct() to compute the cross-product of v2 - v1 and v3 - v1 if you do not need the result to be normalized to a unit vector.

另请参阅

PySide.QtGui.QVector3D.crossProduct() PySide.QtGui.QVector3D.distanceToPlane()

static PySide.QtGui.QVector3D. normal ( v1 , v2 )

参数：	v1 – `PySide.QtGui.QVector3D` v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtGui.QVector3D`

Returns the normal vector of a plane defined by vectors v1 and v2 , normalized to be a unit vector.

使用 PySide.QtGui.QVector3D.crossProduct() to compute the cross-product of v1 and v2 if you do not need the result to be normalized to a unit vector.

另请参阅

PySide.QtGui.QVector3D.crossProduct() PySide.QtGui.QVector3D.distanceToPlane()

PySide.QtGui.QVector3D. normalize ( ) ¶: Normalizes the currect vector in place. Nothing happens if this vector is a null vector or the length of the vector is very close to 1.

另请参阅

PySide.QtGui.QVector3D.length() PySide.QtGui.QVector3D.normalized()

PySide.QtGui.QVector3D. normalized ( ) ¶

返回类型：	`PySide.QtGui.QVector3D`

Returns the normalized unit vector form of this vector.

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

另请参阅

PySide.QtGui.QVector3D.length() PySide.QtGui.QVector3D.normalize()

PySide.QtGui.QVector3D. __ne__ ( v2 ) ¶

参数：	v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtCore.bool`

PySide.QtGui.QVector3D. __mul__ ( factor ) ¶

参数：	factor – `PySide.QtCore.qreal`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __mul__ ( factor )

参数：	factor – `PySide.QtCore.qreal`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __mul__ ( matrix )

参数：	matrix – `PySide.QtGui.QMatrix4x4`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __mul__ ( v2 )

参数：	v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __mul__ ( matrix )

参数：	matrix – `PySide.QtGui.QMatrix4x4`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __imul__ ( factor ) ¶

参数：	factor – `PySide.QtCore.qreal`
返回类型：	`PySide.QtGui.QVector3D`

Multiplies this vector's coordinates by the given factor , and returns a reference to this vector.

另请参阅

PySide.QtGui.QVector3D.operator/=()

PySide.QtGui.QVector3D. __imul__ ( vector )

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

这是重载函数。

Multiplies the components of this vector by the corresponding components in vector .

Note: this is not the same as the PySide.QtGui.QVector3D.crossProduct() of this vector and vector .

另请参阅

PySide.QtGui.QVector3D.crossProduct()

PySide.QtGui.QVector3D. __add__ ( v2 ) ¶

参数：	v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __iadd__ ( vector ) ¶

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

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

另请参阅

PySide.QtGui.QVector3D.operator-=()

PySide.QtGui.QVector3D. __sub__ ( ) ¶

返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __sub__ ( v2 )

参数：	v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __isub__ ( vector ) ¶

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

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

另请参阅

PySide.QtGui.QVector3D.operator+=()

PySide.QtGui.QVector3D. __div__ ( divisor ) ¶

参数：	divisor – `PySide.QtCore.qreal`
返回类型：	`PySide.QtGui.QVector3D`

PySide.QtGui.QVector3D. __idiv__ ( divisor ) ¶

参数：	divisor – `PySide.QtCore.qreal`
返回类型：	`PySide.QtGui.QVector3D`

Divides this vector's coordinates by the given divisor , and returns a reference to this vector.

另请参阅

PySide.QtGui.QVector3D.operator*=()

PySide.QtGui.QVector3D. __eq__ ( v2 ) ¶

参数：	v2 – `PySide.QtGui.QVector3D`
返回类型：	`PySide.QtCore.bool`

PySide.QtGui.QVector3D. setX ( x ) ¶

参数：	x – `PySide.QtCore.qreal`

Sets the x coordinate of this point to the given x 坐标。

另请参阅

PySide.QtGui.QVector3D.x() PySide.QtGui.QVector3D.setY() PySide.QtGui.QVector3D.setZ()

PySide.QtGui.QVector3D. setY ( y ) ¶

参数：	y – `PySide.QtCore.qreal`

Sets the y coordinate of this point to the given y 坐标。

另请参阅

PySide.QtGui.QVector3D.y() PySide.QtGui.QVector3D.setX() PySide.QtGui.QVector3D.setZ()

PySide.QtGui.QVector3D. setZ ( z ) ¶

参数：	z – `PySide.QtCore.qreal`

Sets the z coordinate of this point to the given z 坐标。

另请参阅

PySide.QtGui.QVector3D.z() PySide.QtGui.QVector3D.setX() PySide.QtGui.QVector3D.setY()

PySide.QtGui.QVector3D. toPoint ( ) ¶

返回类型：	`PySide.QtCore.QPoint`

返回 PySide.QtCore.QPoint form of this 3D vector. The z coordinate is dropped.

另请参阅

PySide.QtGui.QVector3D.toPointF() PySide.QtGui.QVector3D.toVector2D()

PySide.QtGui.QVector3D. toPointF ( ) ¶

返回类型：	`PySide.QtCore.QPointF`

返回 PySide.QtCore.QPointF form of this 3D vector. The z coordinate is dropped.

另请参阅

PySide.QtGui.QVector3D.toPoint() PySide.QtGui.QVector3D.toVector2D()

PySide.QtGui.QVector3D. toTuple ( ) ¶

返回类型：	`PyObject`

PySide.QtGui.QVector3D. toVector2D ( ) ¶

返回类型：	`PySide.QtGui.QVector2D`

Returns the 2D vector form of this 3D vector, dropping the z coordinate.

另请参阅

PySide.QtGui.QVector3D.toVector4D() PySide.QtGui.QVector3D.toPoint()

PySide.QtGui.QVector3D. toVector4D ( ) ¶

返回类型：	`PySide.QtGui.QVector4D`

Returns the 4D form of this 3D vector, with the w coordinate set to zero.

另请参阅

PySide.QtGui.QVector3D.toVector2D() PySide.QtGui.QVector3D.toPoint()

PySide.QtGui.QVector3D. x ( ) ¶

返回类型：	`PySide.QtCore.qreal`

返回此点的 x 坐标。

另请参阅

PySide.QtGui.QVector3D.setX() PySide.QtGui.QVector3D.y() PySide.QtGui.QVector3D.z()

PySide.QtGui.QVector3D. y ( ) ¶

返回类型：	`PySide.QtCore.qreal`

返回此点的 y 坐标。

另请参阅

PySide.QtGui.QVector3D.setY() PySide.QtGui.QVector3D.x() PySide.QtGui.QVector3D.z()

PySide.QtGui.QVector3D. z ( ) ¶

返回类型：	`PySide.QtCore.qreal`

返回此点的 z 坐标。

另请参阅

PySide.QtGui.QVector3D.setZ() PySide.QtGui.QVector3D.x() PySide.QtGui.QVector3D.y()

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QVector3D ¶

概要 ¶

函数 ¶

静态函数 ¶

详细描述 ¶