QQuaternion

QVector3D

# QVector4D¶

Note

This class was introduced in Qt 4.6

## Detailed Description¶

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

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

class PySide.QtGui.QVector4D
class PySide.QtGui.QVector4D(point)
class PySide.QtGui.QVector4D(point)
class PySide.QtGui.QVector4D(vector)
class PySide.QtGui.QVector4D(vector, zpos, wpos)
class PySide.QtGui.QVector4D(vector)
class PySide.QtGui.QVector4D(vector, wpos)
class PySide.QtGui.QVector4D(QVector4D)
class PySide.QtGui.QVector4D(xpos, ypos, zpos, wpos)
Parameters: vector – PySide.QtGui.QVector2D point – PySide.QtCore.QPoint zpos – PySide.QtCore.qreal QVector4D – PySide.QtGui.QVector4D ypos – PySide.QtCore.qreal xpos – PySide.QtCore.qreal wpos – PySide.QtCore.qreal

Constructs a null vector, i.e. with coordinates (0, 0, 0, 0).

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

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

Constructs a 4D vector from the specified 2D vector . The z and w coordinates are set to zero.

Constructs a 4D vector from the specified 2D vector . The z and w coordinates are set to zpos and wpos respectively.

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

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

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

PySide.QtGui.QVector4D.__reduce__()
Return type: PyObject
PySide.QtGui.QVector4D.__repr__()
Return type: PyObject
static PySide.QtGui.QVector4D.dotProduct(v1, v2)
Parameters: PySide.QtCore.qreal

Returns the dot product of v1 and v2 .

PySide.QtGui.QVector4D.isNull()
Return type: PySide.QtCore.bool

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

PySide.QtGui.QVector4D.length()
Return type: PySide.QtCore.qreal

Returns the length of the vector from the origin.

PySide.QtGui.QVector4D.lengthSquared()
Return type: 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.

PySide.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.

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

PySide.QtGui.QVector4D.__ne__(v2)
Parameters: v2 – PySide.QtGui.QVector4D PySide.QtCore.bool
PySide.QtGui.QVector4D.__mul__(factor)
Parameters: factor – PySide.QtCore.qreal PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__mul__(factor)
Parameters: factor – PySide.QtCore.qreal PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__mul__(matrix)
Parameters: matrix – PySide.QtGui.QMatrix4x4 PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__mul__(matrix)
Parameters: matrix – PySide.QtGui.QMatrix4x4 PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__mul__(v2)
Parameters: v2 – PySide.QtGui.QVector4D PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__imul__(factor)
Parameters: factor – PySide.QtCore.qreal PySide.QtGui.QVector4D

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

PySide.QtGui.QVector4D.operator/=()

PySide.QtGui.QVector4D.__imul__(vector)
Parameters: vector – PySide.QtGui.QVector4D PySide.QtGui.QVector4D

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

Parameters: v2 – PySide.QtGui.QVector4D PySide.QtGui.QVector4D
Parameters: vector – PySide.QtGui.QVector4D PySide.QtGui.QVector4D

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

PySide.QtGui.QVector4D.operator-=()

PySide.QtGui.QVector4D.__sub__(v2)
Parameters: v2 – PySide.QtGui.QVector4D PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__sub__()
Return type: PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__isub__(vector)
Parameters: vector – PySide.QtGui.QVector4D PySide.QtGui.QVector4D

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

PySide.QtGui.QVector4D.operator+=()

PySide.QtGui.QVector4D.__div__(divisor)
Parameters: divisor – PySide.QtCore.qreal PySide.QtGui.QVector4D
PySide.QtGui.QVector4D.__idiv__(divisor)
Parameters: divisor – PySide.QtCore.qreal PySide.QtGui.QVector4D

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

PySide.QtGui.QVector4D.operator*=()

PySide.QtGui.QVector4D.__eq__(v2)
Parameters: v2 – PySide.QtGui.QVector4D PySide.QtCore.bool
PySide.QtGui.QVector4D.setW(w)
Parameters: w – PySide.QtCore.qreal

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

PySide.QtGui.QVector4D.setX(x)
Parameters: x – PySide.QtCore.qreal

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

PySide.QtGui.QVector4D.setY(y)
Parameters: y – PySide.QtCore.qreal

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

PySide.QtGui.QVector4D.setZ(z)
Parameters: z – PySide.QtCore.qreal

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

PySide.QtGui.QVector4D.toPoint()
Return type: PySide.QtCore.QPoint

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

PySide.QtGui.QVector4D.toPointF()
Return type: PySide.QtCore.QPointF

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

PySide.QtGui.QVector4D.toTuple()
Return type: PyObject
PySide.QtGui.QVector4D.toVector2D()
Return type: PySide.QtGui.QVector2D

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

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

PySide.QtGui.QVector4D.toVector3D()
Return type: PySide.QtGui.QVector3D

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

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

PySide.QtGui.QVector4D.w()
Return type: PySide.QtCore.qreal

Returns the w coordinate of this point.

PySide.QtGui.QVector4D.x()
Return type: PySide.QtCore.qreal

Returns the x coordinate of this point.

PySide.QtGui.QVector4D.y()
Return type: PySide.QtCore.qreal

Returns the y coordinate of this point.

PySide.QtGui.QVector4D.z()
Return type: PySide.QtCore.qreal

Returns the z coordinate of this point.