QVector4D¶
New in version 4.6.
Synopsis¶
Functions¶
def
__add__(, v2)def
__div__(, divisor)def
__div__(, divisor)def
__eq__(, v2)def
__iadd__(vector)def
__idiv__(divisor)def
__idiv__(vector)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
isNull()def
length()def
lengthSquared()def
normalize()def
normalized()def
operator[](i)def
setW(w)def
setX(x)def
setY(y)def
setZ(z)def
toPoint()def
toPointF()def
toTuple()def
toVector2D()def
toVector2DAffine()def
toVector3D()def
toVector3DAffine()def
w()def
x()def
y()def
z()
Static functions¶
def
dotProduct(v1, v2)
Detailed Description¶
The
QVector4Dclass can also be used to represent vertices in 4D space. We therefore do not need to provide a separate vertex class.See also
-
class
QVector4D¶ QVector4D(point)
QVector4D(point)
QVector4D(vector)
QVector4D(vector, zpos, wpos)
QVector4D(vector)
QVector4D(vector, wpos)
QVector4D(xpos, ypos, zpos, wpos)
- param ypos
float- param point
QPoint- param wpos
float- param zpos
float- param vector
- param xpos
float
Constructs a null vector, i.e. with coordinates (0, 0, 0, 0).
Constructs a 4D vector from the specified 2D
vector. The z and w coordinates are set tozposandwposrespectively.See also
Constructs a 4D vector from the specified 3D
vector. The w coordinate is set towpos.See also
Constructs a vector with coordinates (
xpos,ypos,zpos,wpos).
-
PySide2.QtGui.QVector4D.__reduce__()¶ - Return type
PyObject
-
PySide2.QtGui.QVector4D.__repr__()¶ - Return type
PyObject
-
static
PySide2.QtGui.QVector4D.dotProduct(v1, v2)¶ -
Returns the dot product of
v1andv2.
-
PySide2.QtGui.QVector4D.isNull()¶ - Return type
bool
Returns
trueif the x, y, z, and w coordinates are set to 0.0, otherwise returnsfalse.
-
PySide2.QtGui.QVector4D.length()¶ - Return type
float
Returns the length of the vector from the origin.
See also
-
PySide2.QtGui.QVector4D.lengthSquared()¶ - Return type
float
Returns the squared length of the vector from the origin. This is equivalent to the dot product of the vector with itself.
See also
-
PySide2.QtGui.QVector4D.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.
See also
-
PySide2.QtGui.QVector4D.normalized()¶ - Return type
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.
See also
-
PySide2.QtGui.QVector4D.__mul__(matrix)¶ - Parameters
matrix –
QMatrix4x4- Return type
-
PySide2.QtGui.QVector4D.__mul__(matrix)¶ - Parameters
matrix –
QMatrix4x4- Return type
-
PySide2.QtGui.QVector4D.__imul__(factor)¶ - Parameters
factor –
float- Return type
Multiplies this vector’s coordinates by the given
factor, and returns a reference to this vector.See also
operator/=()
-
PySide2.QtGui.QVector4D.__iadd__(vector)¶ -
Adds the given
vectorto this vector and returns a reference to this vector.See also
operator-=()
-
PySide2.QtGui.QVector4D.__isub__(vector)¶ -
Subtracts the given
vectorfrom this vector and returns a reference to this vector.See also
operator+=()
-
PySide2.QtGui.QVector4D.__idiv__(divisor)¶ - Parameters
divisor –
float- Return type
Divides this vector’s coordinates by the given
divisor, and returns a reference to this vector.See also
operator*=()
-
PySide2.QtGui.QVector4D.operator[](i) - Parameters
i –
int- Return type
float
Returns the component of the vector at index position
i.imust be a valid index position in the vector (i.e., 0 <=i< 4).
-
PySide2.QtGui.QVector4D.setW(w)¶ - Parameters
w –
float
Sets the w coordinate of this point to the given
wcoordinate.
-
PySide2.QtGui.QVector4D.setX(x)¶ - Parameters
x –
float
Sets the x coordinate of this point to the given
xcoordinate.
-
PySide2.QtGui.QVector4D.setY(y)¶ - Parameters
y –
float
Sets the y coordinate of this point to the given
ycoordinate.
-
PySide2.QtGui.QVector4D.setZ(z)¶ - Parameters
z –
float
Sets the z coordinate of this point to the given
zcoordinate.
-
PySide2.QtGui.QVector4D.toPoint()¶ - Return type
QPoint
Returns the
QPointform of this 4D vector. The z and w coordinates are dropped.See also
-
PySide2.QtGui.QVector4D.toPointF()¶ - Return type
QPointF
Returns the
QPointFform of this 4D vector. The z and w coordinates are dropped.See also
-
PySide2.QtGui.QVector4D.toTuple()¶ - Return type
PyObject
-
PySide2.QtGui.QVector4D.toVector2D()¶ - Return type
Returns the 2D vector form of this 4D vector, dropping the z and w coordinates.
See also
-
PySide2.QtGui.QVector4D.toVector2DAffine()¶ - Return type
Returns the 2D vector form of this 4D vector, dividing the x and y coordinates by the w coordinate and dropping the z coordinate. Returns a null vector if w is zero.
See also
-
PySide2.QtGui.QVector4D.toVector3D()¶ - Return type
Returns the 3D vector form of this 4D vector, dropping the w coordinate.
See also
-
PySide2.QtGui.QVector4D.toVector3DAffine()¶ - Return type
Returns the 3D vector form of this 4D vector, dividing the x, y, and z coordinates by the w coordinate. Returns a null vector if w is zero.
See also
-
PySide2.QtGui.QVector4D.w()¶ - Return type
float
Returns the w coordinate of this point.
-
PySide2.QtGui.QVector4D.x()¶ - Return type
float
Returns the x coordinate of this point.
-
PySide2.QtGui.QVector4D.y()¶ - Return type
float
Returns the y coordinate of this point.
-
PySide2.QtGui.QVector4D.z()¶ - Return type
float
Returns the z coordinate of this point.
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