# QMatrix4x4 Class Reference
## [[QtGui](index.htm) module]
該QMatrix4x4類表示在三維空間中的4×4變換矩陣。[More...](#details)
### Methods
* `__init__ (self)`
* `__init__ (self, sequence-of-float?values)`
* `__init__ (self, float?m11, float?m12, float?m13, float?m14, float?m21, float?m22, float?m23, float?m24, float?m31, float?m32, float?m33, float?m34, float?m41, float?m42, float?m43, float?m44)`
* `__init__ (self, QTransform?transform)`
* `__init__ (self, QMatrix?matrix)`
* `__init__ (self, QMatrix4x4)`
* `QVector4D column (self, int?index)`
* `list-of-float copyDataTo (self)`
* `list-of-float data (self)`
* `float determinant (self)`
* `fill (self, float?value)`
* `flipCoordinates (self)`
* `frustum (self, float?left, float?right, float?bottom, float?top, float?nearPlane, float?farPlane)`
* `(QMatrix4x4, bool?invertible) inverted (self)`
* `bool isIdentity (self)`
* `lookAt (self, QVector3D?eye, QVector3D?center, QVector3D?up)`
* `QPoint map (self, QPoint?point)`
* `QPointF map (self, QPointF?point)`
* `QVector3D map (self, QVector3D?point)`
* `QVector4D map (self, QVector4D?point)`
* `QRect mapRect (self, QRect?rect)`
* `QRectF mapRect (self, QRectF?rect)`
* `QVector3D mapVector (self, QVector3D?vector)`
* `QMatrix3x3 normalMatrix (self)`
* `optimize (self)`
* `ortho (self, QRect?rect)`
* `ortho (self, QRectF?rect)`
* `ortho (self, float?left, float?right, float?bottom, float?top, float?nearPlane, float?farPlane)`
* `perspective (self, float?angle, float?aspect, float?nearPlane, float?farPlane)`
* `rotate (self, float?angle, QVector3D?vector)`
* `rotate (self, float?angle, float?x, float?y, float?z?=?0)`
* `rotate (self, QQuaternion?quaternion)`
* `QVector4D row (self, int?index)`
* `scale (self, QVector3D?vector)`
* `scale (self, float?x, float?y)`
* `scale (self, float?x, float?y, float?z)`
* `scale (self, float?factor)`
* `setColumn (self, int?index, QVector4D?value)`
* `setRow (self, int?index, QVector4D?value)`
* `setToIdentity (self)`
* `QMatrix toAffine (self)`
* `QTransform toTransform (self)`
* `QTransform toTransform (self, float?distanceToPlane)`
* `translate (self, QVector3D?vector)`
* `translate (self, float?x, float?y)`
* `translate (self, float?x, float?y, float?z)`
* `QMatrix4x4 transposed (self)`
### Special Methods
* `QMatrix4x4 __add__ (self, QMatrix4x4?m2)`
* `QMatrix4x4 __div__ (self, float?divisor)`
* `bool __eq__ (self, QMatrix4x4?other)`
* `object __getitem__ (self, object)`
* `QMatrix4x4 __iadd__ (self, QMatrix4x4?other)`
* `QMatrix4x4 __idiv__ (self, float?divisor)`
* `QMatrix4x4 __imul__ (self, QMatrix4x4?other)`
* `QMatrix4x4 __imul__ (self, float?factor)`
* `QMatrix4x4 __isub__ (self, QMatrix4x4?other)`
* `QMatrix4x4 __mul__ (self, QMatrix4x4?m2)`
* `QVector3D __mul__ (self, QVector3D?vector)`
* `QVector4D __mul__ (self, QVector4D?vector)`
* `QPoint __mul__ (self, QPoint?point)`
* `QPointF __mul__ (self, QPointF?point)`
* `QMatrix4x4 __mul__ (self, QMatrix4x4?matrix)`
* `QMatrix4x4 __mul__ (self, float?factor)`
* `bool __ne__ (self, QMatrix4x4?other)`
* `QMatrix4x4 __neg__ (self)`
* `str __repr__ (self)`
* `__setitem__ (self, object, float)`
* `QMatrix4x4 __sub__ (self, QMatrix4x4?m2)`
* * *
## Detailed Description
這個類可以醃制。
該QMatrix4x4類表示在三維空間中的4×4變換矩陣。
* * *
## Method Documentation
```
QMatrix4x4.__init__ (self)
```
構造一個單位矩陣。
```
QMatrix4x4.__init__ (self, sequence-of-float?values)
```
構造一個矩陣從給定的16浮點_values_。該數組的內容_values_被認為是行優先的順序。
如果矩陣有一種特殊類型(身份證,平移,縮放等) ,程序員應該遵循這個構造函數調用[optimize](qmatrix4x4.html#optimize)( )如果他們想[QMatrix4x4](qmatrix4x4.html)優化還呼吁[translate](qmatrix4x4.html#translate)( )[scale](qmatrix4x4.html#scale)()等
**See also** [copyDataTo](qmatrix4x4.html#copyDataTo)()和[optimize](qmatrix4x4.html#optimize)( ) 。
```
QMatrix4x4.__init__ (self, float?m11, float?m12, float?m13, float?m14, float?m21, float?m22, float?m23, float?m24, float?m31, float?m32, float?m33, float?m34, float?m41, float?m42, float?m43, float?m44)
```
構造一個矩陣由16個元素_m11_,_m12_,_m13_,_m14_,_m21_,_m22_,_m23_,_m24_,_m31_,_m32_,_m33_,_m34_,_m41_,_m42_,_m43_和_m44_。該元素按行優先的順序指定。
如果矩陣有一種特殊類型(身份證,平移,縮放等) ,程序員應該遵循這個構造函數調用[optimize](qmatrix4x4.html#optimize)( )如果他們想[QMatrix4x4](qmatrix4x4.html)優化還呼吁[translate](qmatrix4x4.html#translate)( )[scale](qmatrix4x4.html#scale)()等
**See also** [optimize](qmatrix4x4.html#optimize)( ) 。
```
QMatrix4x4.__init__ (self, QTransform?transform)
```
構造一個4x4矩陣從最左邊的4列和最上面的4行的_matrix_。如果_matrix_具有小于4的列或行,其馀的元素都充滿了從單位矩陣的元素。
**See also** [toGenericMatrix](qmatrix4x4.html#toGenericMatrix)( ) 。
```
QMatrix4x4.__init__ (self, QMatrix?matrix)
```
```
QMatrix4x4.__init__ (self, QMatrix4x4)
```
構造一個4x4矩陣與傳統的Qt 2D變換矩陣_transform_。
If _transform_有一種特殊類型(身份證,平移,縮放等) ,程序員應該遵循這個構造函數調用[optimize](qmatrix4x4.html#optimize)( )如果他們想[QMatrix4x4](qmatrix4x4.html)優化還呼吁[translate](qmatrix4x4.html#translate)( )[scale](qmatrix4x4.html#scale)()等
**See also** [toTransform](qmatrix4x4.html#toTransform)()和[optimize](qmatrix4x4.html#optimize)( ) 。
```
QVector4D QMatrix4x4.column (self, int?index)
```
[
返回列的元素_index_為4D向量。
](qvector4d.html)
[**See also**](qvector4d.html) [setColumn](qmatrix4x4.html#setColumn)()和[row](qmatrix4x4.html#row)( ) 。
```
list-of-float QMatrix4x4.copyDataTo (self)
```
獲取可在此矩陣中的16個項目,并將它們復制到_values_以行優先的順序。
```
list-of-float QMatrix4x4.data (self)
```
返回一個指針,該矩陣的原始數據。
**See also** [constData](qmatrix4x4.html#constData)()和[optimize](qmatrix4x4.html#optimize)( ) 。
```
float QMatrix4x4.determinant (self)
```
返回該矩陣的行列式。
```
QMatrix4x4.fill (self, float?value)
```
填補這一MATRX的所有元素_value_。
```
QMatrix4x4.flipCoordinates (self)
```
之間翻轉右手和左手被乘以-1的y和z坐標的坐標系。這是通常用來創建一個左手正投影視圖,而無需縮放視口[ortho](qmatrix4x4.html#ortho)( )一樣。
**See also** [ortho](qmatrix4x4.html#ortho)( ) 。
```
QMatrix4x4.frustum (self, float?left, float?right, float?bottom, float?top, float?nearPlane, float?farPlane)
```
乘以這個矩陣由另一個應用的透視投影圓臺的窗口左下角(_left_,_bottom_) ,右上角(_right_,_top_) ,并且指定_nearPlane_和_farPlane_剪切平面。
**See also** [ortho](qmatrix4x4.html#ortho)()和[perspective](qmatrix4x4.html#perspective)( ) 。
```
(QMatrix4x4, bool?invertible) QMatrix4x4.inverted (self)
```
返回該矩陣的逆矩陣。返回的身份,如果這個矩陣不能倒置,即[determinant](qmatrix4x4.html#determinant)( )是零。如果_invertible_否則為False ;不為空,那么真正的將被寫入該位置,如果該矩陣可以反轉。
如果矩陣是公認的身份或一個正交矩陣,則該函數將迅速顛倒使用優化例程的矩陣。
**See also** [determinant](qmatrix4x4.html#determinant)()和[normalMatrix](qmatrix4x4.html#normalMatrix)( ) 。
```
bool QMatrix4x4.isIdentity (self)
```
返回True如果這個矩陣是單位,否則為False 。
**See also** [setToIdentity](qmatrix4x4.html#setToIdentity)( ) 。
```
QMatrix4x4.lookAt (self, QVector3D?eye, QVector3D?center, QVector3D?up)
```
乘以這個矩陣由另一個適用的_eye_位置的轉變。該_center_值指示該視圖的中心,該_eye_在看。該_up_值指示哪個方向,應考慮向上相對于所述_eye_。
```
QPoint QMatrix4x4.map (self, QPoint?point)
```
[
地圖_point_由這個矩陣乘以_point_。
](qpoint.html)
[**See also**](qpoint.html) [mapRect](qmatrix4x4.html#mapRect)( ) 。
```
QPointF QMatrix4x4.map (self, QPointF?point)
```
[
地圖_point_由這個矩陣乘以_point_。
](qpointf.html)
[**See also**](qpointf.html) [mapRect](qmatrix4x4.html#mapRect)( ) 。
```
QVector3D QMatrix4x4.map (self, QVector3D?point)
```
[
地圖_point_由這個矩陣乘以_point_。
](qvector3d.html)
[**See also**](qvector3d.html) [mapRect](qmatrix4x4.html#mapRect)()和[mapVector](qmatrix4x4.html#mapVector)( ) 。
```
QVector4D QMatrix4x4.map (self, QVector4D?point)
```
[
地圖_point_由這個矩陣乘以_point_。
](qvector4d.html)
[**See also**](qvector4d.html) [mapRect](qmatrix4x4.html#mapRect)( ) 。
```
QRect QMatrix4x4.mapRect (self, QRect?rect)
```
[
地圖_rect_由該矩陣通過的角倍增_rect_然后形成從結果一個新的矩形。返回的矩形將與邊平行于水平軸和垂直軸以普通二維矩形。
](qrect.html)
[**See also**](qrect.html) [map](qmatrix4x4.html#map)( ) 。
```
QRectF QMatrix4x4.mapRect (self, QRectF?rect)
```
[
地圖_rect_由該矩陣通過的角倍增_rect_然后形成從結果一個新的矩形。返回的矩形將與邊平行于水平軸和垂直軸以普通二維矩形。
](qrectf.html)
[**See also**](qrectf.html) [map](qmatrix4x4.html#map)( ) 。
```
QVector3D QMatrix4x4.mapVector (self, QVector3D?vector)
```
[
地圖_vector_通過這個矩陣的頂3X3部分乘以_vector_。這個矩陣的轉換和投影組件將被忽略。
](qvector3d.html)
[**See also**](qvector3d.html) [map](qmatrix4x4.html#map)( ) 。
```
QMatrix3x3 QMatrix4x4.normalMatrix (self)
```
[
返回對應于該4×4變換法矩陣。正常的矩陣是這樣的4x4矩陣的左上角的3×3部分的逆的轉置。如果3×3子矩陣是不可逆的,則該函數返回的標識。
](qmatrix3x3.html)
[**See also**](qmatrix3x3.html) [inverted](qmatrix4x4.html#inverted)( ) 。
```
QMatrix4x4.optimize (self)
```
從它的當前元素優化這個矩陣的使用。
一些操作,如[translate](qmatrix4x4.html#translate)( )[scale](qmatrix4x4.html#scale)()和[rotate](qmatrix4x4.html#rotate)()可以進行更有效,如果正在修改的矩陣是已經已知的身份,前[translate](qmatrix4x4.html#translate)() ,前[scale](qmatrix4x4.html#scale)()等
通常情況下,[QMatrix4x4](qmatrix4x4.html)類跟蹤這種特殊類型的內部作為被執行的操作。然而,如果基質是與操作者直接修改()()或[data](qmatrix4x4.html#data)(),然后[QMatrix4x4](qmatrix4x4.html)將失去軌道的特殊類型,將恢復為最安全的,但至少有效率的運作之后。
通過直接修改矩陣后調用優化( ) ,程序員可以強制[QMatrix4x4](qmatrix4x4.html)收回特殊類型,如果元素出現,以符合公知的優化類型之一。
**See also** [operator](qmatrix4x4.html#operator-28-29)( ) ( ) ,[data](qmatrix4x4.html#data)()和[translate](qmatrix4x4.html#translate)( ) 。
```
QMatrix4x4.ortho (self, QRect?rect)
```
乘以這個矩陣由另一個應用正交投影的窗口左下角(_left_,_bottom_) ,右上角(_right_,_top_) ,并且指定_nearPlane_和_farPlane_剪切平面。
**See also** [frustum](qmatrix4x4.html#frustum)()和[perspective](qmatrix4x4.html#perspective)( ) 。
```
QMatrix4x4.ortho (self, QRectF?rect)
```
這是一個重載函數。
乘以這個矩陣由另一個應用正交投影為一個窗口,由指定的邊界_rect_。分別為近,遠裁剪平面將是-1到1 。
**See also** [frustum](qmatrix4x4.html#frustum)()和[perspective](qmatrix4x4.html#perspective)( ) 。
```
QMatrix4x4.ortho (self, float?left, float?right, float?bottom, float?top, float?nearPlane, float?farPlane)
```
這是一個重載函數。
乘以這個矩陣由另一個應用正交投影為一個窗口,由指定的邊界_rect_。分別為近,遠裁剪平面將是-1到1 。
**See also** [frustum](qmatrix4x4.html#frustum)()和[perspective](qmatrix4x4.html#perspective)( ) 。
```
QMatrix4x4.perspective (self, float?angle, float?aspect, float?nearPlane, float?farPlane)
```
乘以這個矩陣由其他適用的透視投影。視場會_angle_具有給定范圍內的一個窗口度_aspect_比。凸起將具有指定的_nearPlane_和_farPlane_剪切平面。
**See also** [ortho](qmatrix4x4.html#ortho)()和[frustum](qmatrix4x4.html#frustum)( ) 。
```
QMatrix4x4.rotate (self, float?angle, QVector3D?vector)
```
另一個通過旋轉坐標的倍數這個矩陣_angle_關于度_vector_。
**See also** [scale](qmatrix4x4.html#scale)()和[translate](qmatrix4x4.html#translate)( ) 。
```
QMatrix4x4.rotate (self, float?angle, float?x, float?y, float?z?=?0)
```
倍數這個矩陣由另一個根據指定旋轉坐標_quaternion_。該_quaternion_假定已經被標準化。
**See also** [scale](qmatrix4x4.html#scale)( )[translate](qmatrix4x4.html#translate)()和[QQuaternion](qquaternion.html)。
```
QMatrix4x4.rotate (self, QQuaternion?quaternion)
```
這是一個重載函數。
另一個通過旋轉坐標相乘這個矩陣_angle_關于向量(度_x_,_y_,_z_) 。
**See also** [scale](qmatrix4x4.html#scale)()和[translate](qmatrix4x4.html#translate)( ) 。
```
QVector4D QMatrix4x4.row (self, int?index)
```
[
返回行的元素_index_為4D向量。
](qvector4d.html)
[**See also**](qvector4d.html) [setRow](qmatrix4x4.html#setRow)()和[column](qmatrix4x4.html#column)( ) 。
```
QMatrix4x4.scale (self, QVector3D?vector)
```
通過另一種由組分鱗坐標乘以該矩陣_vector_。
**See also** [translate](qmatrix4x4.html#translate)()和[rotate](qmatrix4x4.html#rotate)( ) 。
```
QMatrix4x4.scale (self, float?x, float?y)
```
這是一個重載函數。
另一個是由該組件縮放坐標乘以這個矩陣_x_和_y_。
**See also** [translate](qmatrix4x4.html#translate)()和[rotate](qmatrix4x4.html#rotate)( ) 。
```
QMatrix4x4.scale (self, float?x, float?y, float?z)
```
這是一個重載函數。
另一個是由該組件縮放坐標乘以這個矩陣_x_,_y_和_z_。
**See also** [translate](qmatrix4x4.html#translate)()和[rotate](qmatrix4x4.html#rotate)( ) 。
```
QMatrix4x4.scale (self, float?factor)
```
這是一個重載函數。
通過另一種由給定的縮放坐標乘以該矩陣_factor_。
**See also** [translate](qmatrix4x4.html#translate)()和[rotate](qmatrix4x4.html#rotate)( ) 。
```
QMatrix4x4.setColumn (self, int?index, QVector4D?value)
```
設置列的元素_index_向的分量_value_。
**See also** [column](qmatrix4x4.html#column)()和[setRow](qmatrix4x4.html#setRow)( ) 。
```
QMatrix4x4.setRow (self, int?index, QVector4D?value)
```
設置行的元素_index_向的分量_value_。
**See also** [row](qmatrix4x4.html#row)()和[setColumn](qmatrix4x4.html#setColumn)( ) 。
```
QMatrix4x4.setToIdentity (self)
```
設置此矩陣的身份。
**See also** [isIdentity](qmatrix4x4.html#isIdentity)( ) 。
```
QMatrix QMatrix4x4.toAffine (self)
```
[
返回對應于該矩陣的傳統Qt的2D仿射變換矩陣。據推測,此矩陣只包含2D仿射變換的元素。
](qmatrix.html)
[**See also**](qmatrix.html) [toTransform](qmatrix4x4.html#toTransform)( ) 。
```
QTransform QMatrix4x4.toTransform (self)
```
[
返回對應于該矩陣的傳統Qt的2D變換矩陣。
](qtransform.html)
[返回](qtransform.html)[QTransform](qtransform.html)是通過簡單地去掉了第三行和第三列中形成[QMatrix4x4](qmatrix4x4.html)。這是適合于實施正投影其中的Z坐標應該被丟棄,而不是預測。
**See also** [toAffine](qmatrix4x4.html#toAffine)( ) 。
```
QTransform QMatrix4x4.toTransform (self, float?distanceToPlane)
```
[
返回對應于該矩陣的傳統Qt的2D變換矩陣。
](qtransform.html)
[If _distanceToPlane_為非零,則表示投影因子使用調整為在z坐標。 1024的值對應于所使用的投影系數](qtransform.html)[QTransform.rotate](qtransform.html#rotate)()的x和y軸。
If _distanceToPlane_是零,則返回[QTransform](qtransform.html)是通過簡單地去掉了第三行和第三列中形成[QMatrix4x4](qmatrix4x4.html)。這是適合于實施正投影其中的Z坐標應該被丟棄,而不是預測。
**See also** [toAffine](qmatrix4x4.html#toAffine)( ) 。
```
QMatrix4x4.translate (self, QVector3D?vector)
```
通過另一種由組分轉化坐標乘以該矩陣_vector_。
**See also** [scale](qmatrix4x4.html#scale)()和[rotate](qmatrix4x4.html#rotate)( ) 。
```
QMatrix4x4.translate (self, float?x, float?y)
```
這是一個重載函數。
另一個是由該組件轉換坐標乘以這個矩陣_x_和_y_。
**See also** [scale](qmatrix4x4.html#scale)()和[rotate](qmatrix4x4.html#rotate)( ) 。
```
QMatrix4x4.translate (self, float?x, float?y, float?z)
```
這是一個重載函數。
另一個是由該組件轉換坐標乘以這個矩陣_x_,_y_和_z_。
**See also** [scale](qmatrix4x4.html#scale)()和[rotate](qmatrix4x4.html#rotate)( ) 。
```
QMatrix4x4 QMatrix4x4.transposed (self)
```
[
返回此矩陣,換位關于它的對角線。
](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__add__ (self, QMatrix4x4?m2)
```
[](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__div__ (self, float?divisor)
```
[
```
bool QMatrix4x4.__eq__ (self, QMatrix4x4?other)
```
```
object QMatrix4x4.__getitem__ (self, object)
```
](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__iadd__ (self, QMatrix4x4?other)
```
[](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__idiv__ (self, float?divisor)
```
[](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__imul__ (self, QMatrix4x4?other)
```
[](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__imul__ (self, float?factor)
```
[](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__isub__ (self, QMatrix4x4?other)
```
[](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__mul__ (self, QMatrix4x4?m2)
```
[](qmatrix4x4.html)
```
QVector3D QMatrix4x4.__mul__ (self, QVector3D?vector)
```
[](qvector3d.html)
```
QVector4D QMatrix4x4.__mul__ (self, QVector4D?vector)
```
[](qvector4d.html)
```
QPoint QMatrix4x4.__mul__ (self, QPoint?point)
```
[](qpoint.html)
```
QPointF QMatrix4x4.__mul__ (self, QPointF?point)
```
[](qpointf.html)
```
QMatrix4x4 QMatrix4x4.__mul__ (self, QMatrix4x4?matrix)
```
[](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__mul__ (self, float?factor)
```
[
```
bool QMatrix4x4.__ne__ (self, QMatrix4x4?other)
```
](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__neg__ (self)
```
[
```
str QMatrix4x4.__repr__ (self)
```
```
QMatrix4x4.__setitem__ (self, object, float)
```
](qmatrix4x4.html)
```
QMatrix4x4 QMatrix4x4.__sub__ (self, QMatrix4x4?m2)
```
[](qmatrix4x4.html)
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