QMatrix4x4 ¶

概要 ¶

详细描述 ¶

class PySide.QtGui. QMatrix4x4 ¶

class PySide.QtGui. QMatrix4x4 ( matrix )

class PySide.QtGui. QMatrix4x4 ( QMatrix4x4 )

class PySide.QtGui. QMatrix4x4 ( transform )

class PySide.QtGui. QMatrix4x4 ( values )

class PySide.QtGui. QMatrix4x4 ( m11 , m12 , m13 , m14 , m21 , m22 , m23 , m24 , m31 , m32 , m33 , m34 , m41 , m42 , m43 , m44 )

参数：

m42 – PySide.QtCore.qreal values – PySide.QtCore.qreal m43 – PySide.QtCore.qreal m44 – PySide.QtCore.qreal m21 – PySide.QtCore.qreal m22 – PySide.QtCore.qreal m23 – PySide.QtCore.qreal m24 – PySide.QtCore.qreal QMatrix4x4 – PySide.QtGui.QMatrix4x4 m31 – PySide.QtCore.qreal m32 – PySide.QtCore.qreal m33 – PySide.QtCore.qreal m34 – PySide.QtCore.qreal m11 – PySide.QtCore.qreal m12 – PySide.QtCore.qreal matrix – PySide.QtGui.QMatrix m13 – PySide.QtCore.qreal m14 – PySide.QtCore.qreal transform – PySide.QtGui.QTransform m41 – PySide.QtCore.qreal

构造恒等矩阵。

Constructs a 4x4 matrix from a conventional Qt 2D affine transformation matrix .

若 matrix has a special type (identity, translate, scale, etc), the programmer should follow this constructor with a call to PySide.QtGui.QMatrix4x4.optimize() if they wish PySide.QtGui.QMatrix4x4 to optimize further calls to PySide.QtGui.QMatrix4x4.translate() , PySide.QtGui.QMatrix4x4.scale() ，等。

另请参阅

PySide.QtGui.QMatrix4x4.toAffine() PySide.QtGui.QMatrix4x4.optimize()

Constructs a 4x4 matrix from the conventional Qt 2D transformation matrix transform .

若 transform has a special type (identity, translate, scale, etc), the programmer should follow this constructor with a call to PySide.QtGui.QMatrix4x4.optimize() if they wish PySide.QtGui.QMatrix4x4 to optimize further calls to PySide.QtGui.QMatrix4x4.translate() , PySide.QtGui.QMatrix4x4.scale() ，等。

另请参阅

PySide.QtGui.QMatrix4x4.toTransform() PySide.QtGui.QMatrix4x4.optimize()

Constructs a matrix from the given 16 floating-point values . The contents of the array values is assumed to be in row-major order.

If the matrix has a special type (identity, translate, scale, etc), the programmer should follow this constructor with a call to PySide.QtGui.QMatrix4x4.optimize() if they wish PySide.QtGui.QMatrix4x4 to optimize further calls to PySide.QtGui.QMatrix4x4.translate() , PySide.QtGui.QMatrix4x4.scale() ，等。

另请参阅

PySide.QtGui.QMatrix4x4.copyDataTo() PySide.QtGui.QMatrix4x4.optimize()

Constructs a matrix from the 16 elements m11 , m12 , m13 , m14 , m21 , m22 , m23 , m24 , m31 , m32 , m33 , m34 , m41 , m42 , m43 ，和 m44 . The elements are specified in row-major order.

If the matrix has a special type (identity, translate, scale, etc), the programmer should follow this constructor with a call to PySide.QtGui.QMatrix4x4.optimize() if they wish PySide.QtGui.QMatrix4x4 to optimize further calls to PySide.QtGui.QMatrix4x4.translate() , PySide.QtGui.QMatrix4x4.scale() ，等。

另请参阅

PySide.QtGui.QMatrix4x4.optimize()

PySide.QtGui.QMatrix4x4. __mgetitem__ ( ) ¶

返回类型：	PyObject

PySide.QtGui.QMatrix4x4. __reduce__ ( ) ¶

返回类型：	PyObject

PySide.QtGui.QMatrix4x4. __repr__ ( ) ¶

返回类型：	PyObject

PySide.QtGui.QMatrix4x4. column ( index ) ¶

参数：	index – PySide.QtCore.int
返回类型：	PySide.QtGui.QVector4D

Returns the elements of column index as a 4D vector.

另请参阅

PySide.QtGui.QMatrix4x4.setColumn() PySide.QtGui.QMatrix4x4.row()

PySide.QtGui.QMatrix4x4. copyDataTo ( ) ¶

Retrieves the 16 items in this matrix and copies them to values in row-major order.

PySide.QtGui.QMatrix4x4. determinant ( ) ¶

返回类型：	PySide.QtCore.qreal

Returns the determinant of this matrix.

PySide.QtGui.QMatrix4x4. fill ( value ) ¶

参数：	value – PySide.QtCore.qreal

Fills all elements of this matrx with value .

PySide.QtGui.QMatrix4x4. flipCoordinates ( ) ¶

Flips between right-handed and left-handed coordinate systems by multiplying the y and z co-ordinates by -1. This is normally used to create a left-handed orthographic view without scaling the viewport as PySide.QtGui.QMatrix4x4.ortho() does.

另请参阅

PySide.QtGui.QMatrix4x4.ortho()

PySide.QtGui.QMatrix4x4. frustum ( left , right , bottom , top , nearPlane , farPlane ) ¶

参数：	left – PySide.QtCore.qreal right – PySide.QtCore.qreal bottom – PySide.QtCore.qreal top – PySide.QtCore.qreal nearPlane – PySide.QtCore.qreal farPlane – PySide.QtCore.qreal

Multiplies this matrix by another that applies a perspective frustum projection for a window with lower-left corner ( left , bottom ), upper-right corner ( right , top ), and the specified nearPlane and farPlane clipping planes.

另请参阅

PySide.QtGui.QMatrix4x4.ortho() PySide.QtGui.QMatrix4x4.perspective()

PySide.QtGui.QMatrix4x4. inverted ( ) ¶

返回类型：	PyTuple

Returns the inverse of this matrix. Returns the identity if this matrix cannot be inverted; i.e. PySide.QtGui.QMatrix4x4.determinant() is zero. If invertible is not null, then true will be written to that location if the matrix can be inverted; false otherwise.

If the matrix is recognized as the identity or an orthonormal matrix, then this function will quickly invert the matrix using optimized routines.

另请参阅

PySide.QtGui.QMatrix4x4.determinant() PySide.QtGui.QMatrix4x4.normalMatrix()

PySide.QtGui.QMatrix4x4. isIdentity ( ) ¶

返回类型：	PySide.QtCore.bool

Returns true if this matrix is the identity; false otherwise.

另请参阅

PySide.QtGui.QMatrix4x4.setToIdentity()

PySide.QtGui.QMatrix4x4. lookAt ( eye , center , up ) ¶

参数：	eye – PySide.QtGui.QVector3D center – PySide.QtGui.QVector3D up – PySide.QtGui.QVector3D

Multiplies this matrix by another that applies an eye position transformation. The center value indicates the center of the view that the eye is looking at. The up value indicates which direction should be considered up with respect to the eye .

PySide.QtGui.QMatrix4x4. map ( point ) ¶

参数：	point – PySide.QtGui.QVector4D
返回类型：	PySide.QtGui.QVector4D

Maps point by multiplying this matrix by point .

另请参阅

PySide.QtGui.QMatrix4x4.mapRect()

PySide.QtGui.QMatrix4x4. map ( point )

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

Maps point by multiplying this matrix by point .

另请参阅

PySide.QtGui.QMatrix4x4.mapRect() PySide.QtGui.QMatrix4x4.mapVector()

PySide.QtGui.QMatrix4x4. map ( point )

参数：	point – PySide.QtCore.QPoint
返回类型：	PySide.QtCore.QPoint

Maps point by multiplying this matrix by point .

另请参阅

PySide.QtGui.QMatrix4x4.mapRect()

PySide.QtGui.QMatrix4x4. map ( point )

参数：	point – PySide.QtCore.QPointF
返回类型：	PySide.QtCore.QPointF

Maps point by multiplying this matrix by point .

另请参阅

PySide.QtGui.QMatrix4x4.mapRect()

PySide.QtGui.QMatrix4x4. mapRect ( rect ) ¶

参数：	rect – PySide.QtCore.QRectF
返回类型：	PySide.QtCore.QRectF

Maps rect by multiplying this matrix by the corners of rect and then forming a new rectangle from the results. The returned rectangle will be an ordinary 2D rectangle with sides parallel to the horizontal and vertical axes.

另请参阅

PySide.QtGui.QMatrix4x4.map()

PySide.QtGui.QMatrix4x4. mapRect ( rect )

参数：	rect – PySide.QtCore.QRect
返回类型：	PySide.QtCore.QRect

Maps rect by multiplying this matrix by the corners of rect and then forming a new rectangle from the results. The returned rectangle will be an ordinary 2D rectangle with sides parallel to the horizontal and vertical axes.

另请参阅

PySide.QtGui.QMatrix4x4.map()

PySide.QtGui.QMatrix4x4. mapVector ( vector ) ¶

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

Maps vector by multiplying the top 3x3 portion of this matrix by vector . The translation and projection components of this matrix are ignored.

另请参阅

PySide.QtGui.QMatrix4x4.map()

PySide.QtGui.QMatrix4x4. normalMatrix ( ) ¶

返回类型：	PySide.QtGui.QMatrix3x3

Returns the normal matrix corresponding to this 4x4 transformation. The normal matrix is the transpose of the inverse of the top-left 3x3 part of this 4x4 matrix. If the 3x3 sub-matrix is not invertible, this function returns the identity.

另请参阅

PySide.QtGui.QMatrix4x4.inverted()

PySide.QtGui.QMatrix4x4. __ne__ ( other ) ¶

参数：	other – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtCore.bool

Returns true if this matrix is not identical to other ; false otherwise. This operator uses an exact floating-point comparison.

PySide.QtGui.QMatrix4x4. __mul__ ( factor ) ¶

参数：	factor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. __mul__ ( factor )

参数：	factor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. __mul__ ( m2 )

参数：	m2 – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. __imul__ ( factor ) ¶

参数：	factor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QMatrix4x4

这是重载函数。

Multiplies all elements of this matrix by factor .

PySide.QtGui.QMatrix4x4. __imul__ ( other )

参数：	other – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtGui.QMatrix4x4

Multiplies the contents of other by this matrix.

PySide.QtGui.QMatrix4x4. __add__ ( m2 ) ¶

参数：	m2 – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. __iadd__ ( other ) ¶

参数：	other – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtGui.QMatrix4x4

Adds the contents of other to this matrix.

PySide.QtGui.QMatrix4x4. __sub__ ( ) ¶

返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. __sub__ ( m2 )

参数：	m2 – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. __isub__ ( other ) ¶

参数：	other – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtGui.QMatrix4x4

Subtracts the contents of other from this matrix.

PySide.QtGui.QMatrix4x4. __div__ ( divisor ) ¶

参数：	divisor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. __idiv__ ( divisor ) ¶

参数：	divisor – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QMatrix4x4

这是重载函数。

Divides all elements of this matrix by divisor .

PySide.QtGui.QMatrix4x4. __eq__ ( other ) ¶

参数：	other – PySide.QtGui.QMatrix4x4
返回类型：	PySide.QtCore.bool

Returns true if this matrix is identical to other ; false otherwise. This operator uses an exact floating-point comparison.

PySide.QtGui.QMatrix4x4. optimize ( ) ¶

Optimize the usage of this matrix from its current elements.

Some operations such as PySide.QtGui.QMatrix4x4.translate() , PySide.QtGui.QMatrix4x4.scale() ，和 PySide.QtGui.QMatrix4x4.rotate() can be performed more efficiently if the matrix being modified is already known to be the identity, a previous PySide.QtGui.QMatrix4x4.translate() , a previous PySide.QtGui.QMatrix4x4.scale() ，等。

Normally the PySide.QtGui.QMatrix4x4 class keeps track of this special type internally as operations are performed. However, if the matrix is modified directly with operator()() or PySide.QtGui.QMatrix4x4.data() ，那么 PySide.QtGui.QMatrix4x4 will lose track of the special type and will revert to the safest but least efficient operations thereafter.

By calling PySide.QtGui.QMatrix4x4.optimize() after directly modifying the matrix, the programmer can force PySide.QtGui.QMatrix4x4 to recover the special type if the elements appear to conform to one of the known optimized types.

另请参阅

operator()() PySide.QtGui.QMatrix4x4.data() PySide.QtGui.QMatrix4x4.translate()

PySide.QtGui.QMatrix4x4. ortho ( rect ) ¶

参数：	rect – PySide.QtCore.QRectF

这是重载函数。

Multiplies this matrix by another that applies an orthographic projection for a window with boundaries specified by rect . The near and far clipping planes will be -1 and 1 respectively.

另请参阅

PySide.QtGui.QMatrix4x4.frustum() PySide.QtGui.QMatrix4x4.perspective()

PySide.QtGui.QMatrix4x4. ortho ( left , right , bottom , top , nearPlane , farPlane )

参数：	left – PySide.QtCore.qreal right – PySide.QtCore.qreal bottom – PySide.QtCore.qreal top – PySide.QtCore.qreal nearPlane – PySide.QtCore.qreal farPlane – PySide.QtCore.qreal

Multiplies this matrix by another that applies an orthographic projection for a window with lower-left corner ( left , bottom ), upper-right corner ( right , top ), and the specified nearPlane and farPlane clipping planes.

另请参阅

PySide.QtGui.QMatrix4x4.frustum() PySide.QtGui.QMatrix4x4.perspective()

PySide.QtGui.QMatrix4x4. ortho ( rect )

参数：	rect – PySide.QtCore.QRect

这是重载函数。

Multiplies this matrix by another that applies an orthographic projection for a window with boundaries specified by rect . The near and far clipping planes will be -1 and 1 respectively.

另请参阅

PySide.QtGui.QMatrix4x4.frustum() PySide.QtGui.QMatrix4x4.perspective()

PySide.QtGui.QMatrix4x4. orthonormalInverse ( ) ¶

返回类型：	PySide.QtGui.QMatrix4x4

PySide.QtGui.QMatrix4x4. perspective ( angle , aspect , nearPlane , farPlane ) ¶

参数：	angle – PySide.QtCore.qreal aspect – PySide.QtCore.qreal nearPlane – PySide.QtCore.qreal farPlane – PySide.QtCore.qreal

Multiplies this matrix by another that applies a perspective projection. The field of view will be angle degrees within a window with a given aspect ratio. The projection will have the specified nearPlane and farPlane clipping planes.

另请参阅

PySide.QtGui.QMatrix4x4.ortho() PySide.QtGui.QMatrix4x4.frustum()

PySide.QtGui.QMatrix4x4. projectedRotate ( angle , x , y , z ) ¶

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

PySide.QtGui.QMatrix4x4. rotate ( angle , x , y [ , z=0.0f ] ) ¶

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

这是重载函数。

Multiplies this matrix by another that rotates coordinates through angle degrees about the vector ( x , y , z ).

另请参阅

PySide.QtGui.QMatrix4x4.scale() PySide.QtGui.QMatrix4x4.translate()

PySide.QtGui.QMatrix4x4. rotate ( quaternion )

参数：	quaternion – PySide.QtGui.QQuaternion

Multiples this matrix by another that rotates coordinates according to a specified quaternion 。 quaternion is assumed to have been normalized.

另请参阅

PySide.QtGui.QMatrix4x4.scale() PySide.QtGui.QMatrix4x4.translate() PySide.QtGui.QQuaternion

PySide.QtGui.QMatrix4x4. rotate ( angle , vector )

参数：	angle – PySide.QtCore.qreal vector – PySide.QtGui.QVector3D

Multiples this matrix by another that rotates coordinates through angle degrees about vector .

另请参阅

PySide.QtGui.QMatrix4x4.scale() PySide.QtGui.QMatrix4x4.translate()

PySide.QtGui.QMatrix4x4. row ( index ) ¶

参数：	index – PySide.QtCore.int
返回类型：	PySide.QtGui.QVector4D

Returns the elements of row index as a 4D vector.

另请参阅

PySide.QtGui.QMatrix4x4.setRow() PySide.QtGui.QMatrix4x4.column()

PySide.QtGui.QMatrix4x4. scale ( x , y , z ) ¶

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

这是重载函数。

Multiplies this matrix by another that scales coordinates by the components x , y ，和 z .

另请参阅

PySide.QtGui.QMatrix4x4.translate() PySide.QtGui.QMatrix4x4.rotate()

PySide.QtGui.QMatrix4x4. scale ( x , y )

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

这是重载函数。

Multiplies this matrix by another that scales coordinates by the components x ，和 y .

另请参阅

PySide.QtGui.QMatrix4x4.translate() PySide.QtGui.QMatrix4x4.rotate()

PySide.QtGui.QMatrix4x4. scale ( factor )

参数：	factor – PySide.QtCore.qreal

这是重载函数。

Multiplies this matrix by another that scales coordinates by the given factor .

另请参阅

PySide.QtGui.QMatrix4x4.translate() PySide.QtGui.QMatrix4x4.rotate()

PySide.QtGui.QMatrix4x4. scale ( vector )

参数：	vector – PySide.QtGui.QVector3D

Multiplies this matrix by another that scales coordinates by the components of vector .

另请参阅

PySide.QtGui.QMatrix4x4.translate() PySide.QtGui.QMatrix4x4.rotate()

PySide.QtGui.QMatrix4x4. setColumn ( index , value ) ¶

参数：	index – PySide.QtCore.int value – PySide.QtGui.QVector4D

Sets the elements of column index to the components of value .

另请参阅

PySide.QtGui.QMatrix4x4.column() PySide.QtGui.QMatrix4x4.setRow()

PySide.QtGui.QMatrix4x4. setRow ( index , value ) ¶

参数：	index – PySide.QtCore.int value – PySide.QtGui.QVector4D

Sets the elements of row index to the components of value .

另请参阅

PySide.QtGui.QMatrix4x4.row() PySide.QtGui.QMatrix4x4.setColumn()

PySide.QtGui.QMatrix4x4. setToIdentity ( ) ¶

将此矩阵设为恒等。

另请参阅

PySide.QtGui.QMatrix4x4.isIdentity()

PySide.QtGui.QMatrix4x4. toAffine ( ) ¶

返回类型：	PySide.QtGui.QMatrix

Returns the conventional Qt 2D affine transformation matrix that corresponds to this matrix. It is assumed that this matrix only contains 2D affine transformation elements.

另请参阅

PySide.QtGui.QMatrix4x4.toTransform()

PySide.QtGui.QMatrix4x4. toTransform ( distanceToPlane ) ¶

参数：	distanceToPlane – PySide.QtCore.qreal
返回类型：	PySide.QtGui.QTransform

Returns the conventional Qt 2D transformation matrix that corresponds to this matrix.

若 distanceToPlane is non-zero, it indicates a projection factor to use to adjust for the z co-ordinate. The value of 1024 corresponds to the projection factor used by QTransform.rotate() for the x and y axes.

若 distanceToPlane is zero, then the returned PySide.QtGui.QTransform is formed by simply dropping the third row and third column of the PySide.QtGui.QMatrix4x4 . This is suitable for implementing orthographic projections where the z co-ordinate should be dropped rather than projected.

另请参阅

PySide.QtGui.QMatrix4x4.toAffine()

PySide.QtGui.QMatrix4x4. toTransform ( )

返回类型：	PySide.QtGui.QTransform

Returns the conventional Qt 2D transformation matrix that corresponds to this matrix.

返回的 PySide.QtGui.QTransform is formed by simply dropping the third row and third column of the PySide.QtGui.QMatrix4x4 . This is suitable for implementing orthographic projections where the z co-ordinate should be dropped rather than projected.

另请参阅

PySide.QtGui.QMatrix4x4.toAffine()

PySide.QtGui.QMatrix4x4. translate ( x , y , z ) ¶

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

这是重载函数。

Multiplies this matrix by another that translates coordinates by the components x , y ，和 z .

另请参阅

PySide.QtGui.QMatrix4x4.scale() PySide.QtGui.QMatrix4x4.rotate()

PySide.QtGui.QMatrix4x4. translate ( vector )

参数：	vector – PySide.QtGui.QVector3D

Multiplies this matrix by another that translates coordinates by the components of vector .

另请参阅

PySide.QtGui.QMatrix4x4.scale() PySide.QtGui.QMatrix4x4.rotate()

PySide.QtGui.QMatrix4x4. translate ( x , y )

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

这是重载函数。

Multiplies this matrix by another that translates coordinates by the components x ，和 y .

另请参阅

PySide.QtGui.QMatrix4x4.scale() PySide.QtGui.QMatrix4x4.rotate()

PySide.QtGui.QMatrix4x4. transposed ( ) ¶

返回类型：	PySide.QtGui.QMatrix4x4

Returns this matrix, transposed about its diagonal.