QVector4D

The QVector4D class represents a vector or vertex in 4D space. More

Inheritance diagram of PySide2.QtGui.QVector4D

New in version 4.6.

Synopsis

Functions

Static functions

Detailed Description

The QVector4D class can also be used to represent vertices in 4D space. We therefore do not need to provide a separate vertex class.

class PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D(point)

PySide2.QtGui.QVector4D(point)

PySide2.QtGui.QVector4D(vector)

PySide2.QtGui.QVector4D(vector, zpos, wpos)

PySide2.QtGui.QVector4D(vector)

PySide2.QtGui.QVector4D(vector, wpos)

PySide2.QtGui.QVector4D(xpos, ypos, zpos, wpos)

param ypos:

float

param point:

PySide2.QtCore.QPoint

param wpos:

float

param zpos:

float

param vector:

PySide2.QtGui.QVector2D

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 to zpos and wpos respectively.

See also

toVector2D()

Constructs a 4D vector from the specified 3D vector . The w coordinate is set to wpos .

See also

toVector3D()

Constructs a vector with coordinates (xpos , ypos , zpos , wpos ).

PySide2.QtGui.QVector4D.__reduce__()
Return type:

object

PySide2.QtGui.QVector4D.__repr__()
Return type:

object

static PySide2.QtGui.QVector4D.dotProduct(v1, v2)
Parameters:
Return type:

float

Returns the dot product of v1 and v2 .

PySide2.QtGui.QVector4D.isNull()
Return type:

bool

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

PySide2.QtGui.QVector4D.length()
Return type:

float

Returns the length of the vector from the origin.

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.

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.

PySide2.QtGui.QVector4D.normalized()
Return type:

PySide2.QtGui.QVector4D

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.

PySide2.QtGui.QVector4D.__ne__(v2)
Parameters:

v2PySide2.QtGui.QVector4D

Return type:

bool

PySide2.QtGui.QVector4D.__mul__(matrix)
Parameters:

matrixPySide2.QtGui.QMatrix4x4

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__mul__(matrix)
Parameters:

matrixPySide2.QtGui.QMatrix4x4

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__mul__(v2)
Parameters:

v2PySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__mul__(factor)
Parameters:

factor – float

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__mul__(factor)
Parameters:

factor – float

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__imul__(vector)
Parameters:

vectorPySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__imul__(factor)
Parameters:

factor – float

Return type:

PySide2.QtGui.QVector4D

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

See also

operator/=()

PySide2.QtGui.QVector4D.__add__(v2)
Parameters:

v2PySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__iadd__(vector)
Parameters:

vectorPySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

Adds the given vector to this vector and returns a reference to this vector.

See also

operator-=()

PySide2.QtGui.QVector4D.__sub__(v2)
Parameters:

v2PySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__sub__()
Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__isub__(vector)
Parameters:

vectorPySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

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

See also

operator+=()

PySide2.QtGui.QVector4D.__div__(divisor)
Parameters:

divisorPySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__div__(divisor)
Parameters:

divisor – float

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__idiv__(vector)
Parameters:

vectorPySide2.QtGui.QVector4D

Return type:

PySide2.QtGui.QVector4D

PySide2.QtGui.QVector4D.__idiv__(divisor)
Parameters:

divisor – float

Return type:

PySide2.QtGui.QVector4D

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

See also

operator*=()

PySide2.QtGui.QVector4D.__eq__(v2)
Parameters:

v2PySide2.QtGui.QVector4D

Return type:

bool

PySide2.QtGui.QVector4D.operator[](i)
Parameters:

i – int

Return type:

float

Returns the component of the vector at index position i .

i must 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 w coordinate.

See also

w() setX() setY() setZ()

PySide2.QtGui.QVector4D.setX(x)
Parameters:

x – float

Sets the x coordinate of this point to the given x coordinate.

See also

x() setY() setZ() setW()

PySide2.QtGui.QVector4D.setY(y)
Parameters:

y – float

Sets the y coordinate of this point to the given y coordinate.

See also

y() setX() setZ() setW()

PySide2.QtGui.QVector4D.setZ(z)
Parameters:

z – float

Sets the z coordinate of this point to the given z coordinate.

See also

z() setX() setY() setW()

PySide2.QtGui.QVector4D.toPoint()
Return type:

PySide2.QtCore.QPoint

Returns the QPoint form of this 4D vector. The z and w coordinates are dropped.

PySide2.QtGui.QVector4D.toPointF()
Return type:

PySide2.QtCore.QPointF

Returns the QPointF form of this 4D vector. The z and w coordinates are dropped.

PySide2.QtGui.QVector4D.toTuple()
Return type:

object

PySide2.QtGui.QVector4D.toVector2D()
Return type:

PySide2.QtGui.QVector2D

Returns the 2D vector form of this 4D vector, dropping the z and w coordinates.

PySide2.QtGui.QVector4D.toVector2DAffine()
Return type:

PySide2.QtGui.QVector2D

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.

PySide2.QtGui.QVector4D.toVector3D()
Return type:

PySide2.QtGui.QVector3D

Returns the 3D vector form of this 4D vector, dropping the w coordinate.

PySide2.QtGui.QVector4D.toVector3DAffine()
Return type:

PySide2.QtGui.QVector3D

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.

PySide2.QtGui.QVector4D.w()
Return type:

float

Returns the w coordinate of this point.

See also

setW() x() y() z()

PySide2.QtGui.QVector4D.x()
Return type:

float

Returns the x coordinate of this point.

See also

setX() y() z() w()

PySide2.QtGui.QVector4D.y()
Return type:

float

Returns the y coordinate of this point.

See also

setY() x() z() w()

PySide2.QtGui.QVector4D.z()
Return type:

float

Returns the z coordinate of this point.

See also

setZ() x() y() w()