QVector2D¶

PyQt5.QtGui.QVector2D

Description¶

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

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

Methods¶

__init__(): TODO

__init__(QPoint): TODO

__init__(Union[QPointF, QPoint]): TODO

__init__(QVector3D): Constructs a vector with x and y coordinates from a 3D vector. The z coordinate of vector is dropped.

See also

toVector3D().

__init__(QVector4D): Constructs a vector with x and y coordinates from a 3D vector. The z and w coordinates of vector are dropped.

See also

toVector4D().

__init__(QVector2D): TODO

__init__(float, float): TODO

__add__(QVector2D) → QVector2D: TODO

distanceToLine(QVector2D, QVector2D) → float: TODO

distanceToPoint(QVector2D) → float: TODO

@staticmethod dotProduct(QVector2D, QVector2D) → float: Returns the dot product of v1 and v2.

__eq__(QVector2D) → bool: TODO

__getitem__(int) → float: TODO

__iadd__(QVector2D) → QVector2D: TODO

__imul__(float) → QVector2D: TODO

__imul__(QVector2D) → QVector2D: TODO

isNull() → bool: TODO

__isub__(QVector2D) → QVector2D: TODO

__itruediv__(float) → QVector2D: TODO

__itruediv__(QVector2D) → QVector2D: TODO

length() → float: Returns the length of the vector from the origin.

See also

lengthSquared(), normalized().

lengthSquared() → 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

length(), dotProduct().

__mul__(float) → QVector2D: TODO

__mul__(QVector2D) → QVector2D: TODO

__ne__(QVector2D) → bool: TODO

__neg__() → QVector2D: TODO

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

length(), normalized().

normalized() → 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.