QVector2D

The QVector2D class represents a vector or vertex in 2D space. More

Inheritance diagram of PySide2.QtGui.QVector2D

New in version 4.6.

Synopsis

Functions

Static functions

Detailed Description

The QVector2D class can also be used to represent vertices in 2D space. We therefore do not need to provide a separate vertex class.

class QVector2D

QVector2D(point)

QVector2D(point)

QVector2D(vector)

QVector2D(vector)

QVector2D(xpos, ypos)

param ypos

float

param point

QPoint

param vector

QVector3D

param xpos

float

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

Constructs a vector with coordinates (xpos , ypos ).

PySide2.QtGui.QVector2D.__reduce__()
Return type

PyObject

PySide2.QtGui.QVector2D.__repr__()
Return type

PyObject

PySide2.QtGui.QVector2D.distanceToLine(point, direction)
Parameters
Return type

float

Returns the distance that this vertex is from a line defined by point and the unit vector direction .

If direction is a null vector, then it does not define a line. In that case, the distance from point to this vertex is returned.

PySide2.QtGui.QVector2D.distanceToPoint(point)
Parameters

pointQVector2D

Return type

float

Returns the distance from this vertex to a point defined by the vertex point .

See also

distanceToLine()

static PySide2.QtGui.QVector2D.dotProduct(v1, v2)
Parameters
Return type

float

Returns the dot product of v1 and v2 .

PySide2.QtGui.QVector2D.isNull()
Return type

bool

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

PySide2.QtGui.QVector2D.length()
Return type

float

Returns the length of the vector from the origin.

PySide2.QtGui.QVector2D.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.QVector2D.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.QVector2D.normalized()
Return type

QVector2D

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.QVector2D.__ne__(v2)
Parameters

v2QVector2D

Return type

bool

PySide2.QtGui.QVector2D.__mul__(v2)
Parameters

v2QVector2D

Return type

QVector2D

PySide2.QtGui.QVector2D.__mul__(factor)
Parameters

factorfloat

Return type

QVector2D

PySide2.QtGui.QVector2D.__mul__(factor)
Parameters

factorfloat

Return type

QVector2D

PySide2.QtGui.QVector2D.__imul__(factor)
Parameters

factorfloat

Return type

QVector2D

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

See also

operator/=()

PySide2.QtGui.QVector2D.__imul__(vector)
Parameters

vectorQVector2D

Return type

QVector2D

PySide2.QtGui.QVector2D.__add__(v2)
Parameters

v2QVector2D

Return type

QVector2D

PySide2.QtGui.QVector2D.__iadd__(vector)
Parameters

vectorQVector2D

Return type

QVector2D

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

See also

operator-=()

PySide2.QtGui.QVector2D.__sub__()
Return type

QVector2D

PySide2.QtGui.QVector2D.__sub__(v2)
Parameters

v2QVector2D

Return type

QVector2D

PySide2.QtGui.QVector2D.__isub__(vector)
Parameters

vectorQVector2D

Return type

QVector2D

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

See also

operator+=()

PySide2.QtGui.QVector2D.__div__(divisor)
Parameters

divisorQVector2D

Return type

QVector2D

PySide2.QtGui.QVector2D.__div__(divisor)
Parameters

divisorfloat

Return type

QVector2D

PySide2.QtGui.QVector2D.__idiv__(vector)
Parameters

vectorQVector2D

Return type

QVector2D

PySide2.QtGui.QVector2D.__idiv__(divisor)
Parameters

divisorfloat

Return type

QVector2D

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

See also

operator*=()

PySide2.QtGui.QVector2D.__eq__(v2)
Parameters

v2QVector2D

Return type

bool

PySide2.QtGui.QVector2D.operator[](i)
Parameters

iint

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 < 2).

PySide2.QtGui.QVector2D.setX(x)
Parameters

xfloat

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

See also

x() setY()

PySide2.QtGui.QVector2D.setY(y)
Parameters

yfloat

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

See also

y() setX()

PySide2.QtGui.QVector2D.toPoint()
Return type

QPoint

Returns the QPoint form of this 2D vector.

PySide2.QtGui.QVector2D.toPointF()
Return type

QPointF

Returns the QPointF form of this 2D vector.

PySide2.QtGui.QVector2D.toTuple()
Return type

PyObject

PySide2.QtGui.QVector2D.toVector3D()
Return type

QVector3D

Returns the 3D form of this 2D vector, with the z coordinate set to zero.

PySide2.QtGui.QVector2D.toVector4D()
Return type

QVector4D

Returns the 4D form of this 2D vector, with the z and w coordinates set to zero.

PySide2.QtGui.QVector2D.x()
Return type

float

Returns the x coordinate of this point.

See also

setX() y()

PySide2.QtGui.QVector2D.y()
Return type

float

Returns the y coordinate of this point.

See also

setY() x()