QPointF

Synopsis

Functions

• def __add__ (, p2)
• def __div__ (, c)
• def __eq__ (, p2)
• def __iadd__ (p)
• def __idiv__ (c)
• def __imul__ (c)
• def __isub__ (p)
• def __mul__ (, c)
• def __mul__ (, m)
• def __mul__ (, m)
• def __mul__ (, matrix)
• def __mul__ (c)
• def __mul__ (matrix)
• def __ne__ (, p2)
• def __reduce__ ()
• def __repr__ ()
• def __sub__ ()
• def __sub__ (, p2)
• def isNull ()
• def manhattanLength ()
• def setX (x)
• def setY (y)
• def toPoint ()
• def toTuple ()
• def x ()
• def y ()

Detailed Description

The PySide.QtCore.QPointF class defines a point in the plane using floating point precision.

A point is specified by a x coordinate and an y coordinate which can be accessed using the PySide.QtCore.QPointF.x() and PySide.QtCore.QPointF.y() functions. The coordinates of the point are specified using floating point numbers for accuracy. The PySide.QtCore.QPointF.isNull() function returns true if both x and y are set to 0.0. The coordinates can be set (or altered) using the PySide.QtCore.QPointF.setX() and PySide.QtCore.QPointF.setY() functions, or alternatively the PySide.QtCore.QPointF.rx() and PySide.QtCore.QPointF.ry() functions which return references to the coordinates (allowing direct manipulation).

Given a point p , the following statements are all equivalent:

p = QPointF()

p.setX(p.x() + 1.0)
p += QPointF(1.0, 0.0)
#p.rx()++;

A PySide.QtCore.QPointF object can also be used as a vector: Addition and subtraction are defined as for vectors (each component is added separately). A PySide.QtCore.QPointF object can also be divided or multiplied by an int or a qreal .

In addition, the PySide.QtCore.QPointF class provides a constructor converting a PySide.QtCore.QPoint object into a PySide.QtCore.QPointF object, and a corresponding PySide.QtCore.QPointF.toPoint() function which returns a PySide.QtCore.QPoint copy of this point. Finally, PySide.QtCore.QPointF objects can be streamed as well as compared.

See also

PySide.QtCore.QPoint PySide.QtGui.QPolygonF

class PySide.QtCore.QPointF

class PySide.QtCore.QPointF(p)

class PySide.QtCore.QPointF(QPointF)

class PySide.QtCore.QPointF(xpos, ypos)

Parameters:

• p – PySide.QtCore.QPoint
• ypos – PySide.QtCore.qreal
• xpos – PySide.QtCore.qreal
• QPointF – PySide.QtCore.QPointF

Constructs a null point, i.e. with coordinates (0.0, 0.0)

See also

PySide.QtCore.QPointF.isNull()

Constructs a copy of the given point .

See also

PySide.QtCore.QPointF.toPoint()

Constructs a point with the given coordinates (x , y ).

See also

PySide.QtCore.QPointF.setX() PySide.QtCore.QPointF.setY()

PySide.QtCore.QPointF.__reduce__()

Return type:PyObject

PySide.QtCore.QPointF.__repr__()

Return type:PyObject

PySide.QtCore.QPointF.isNull()

Return type:PySide.QtCore.bool

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

Note

Since this function treats +0.0 and -0.0 differently, points with zero-valued coordinates where either or both values have a negative sign are not defined to be null points.

PySide.QtCore.QPointF.manhattanLength()

Return type:PySide.QtCore.qreal

Returns the sum of the absolute values of PySide.QtCore.QPointF.x() and PySide.QtCore.QPointF.y() , traditionally known as the “Manhattan length” of the vector from the origin to the point.

See also

QPoint.manhattanLength()

PySide.QtCore.QPointF.__ne__(p2)

Parameters:p2 – PySide.QtCore.QPointF Return type:PySide.QtCore.bool

PySide.QtCore.QPointF.__mul__(c)

Parameters:c – PySide.QtCore.qreal Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__mul__(c)

Parameters:c – PySide.QtCore.qreal Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__mul__(m)

Parameters:m – PySide.QtGui.QTransform Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__mul__(matrix)

Parameters:matrix – PySide.QtGui.QMatrix4x4 Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__mul__(m)

Parameters:m – PySide.QtGui.QMatrix Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__mul__(matrix)

Parameters:matrix – PySide.QtGui.QMatrix4x4 Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__imul__(c)

Parameters:c – PySide.QtCore.qreal Return type:PySide.QtCore.QPointF

Multiplies this point’s coordinates by the given factor , and returns a reference to this point. For example:

p = QPointF(-1.1, 4.1)
p *= 2.5  # p becomes (-2.75, 10.25)

See also

PySide.QtCore.QPointF.operator/=()

PySide.QtCore.QPointF.__add__(p2)

Parameters:p2 – PySide.QtCore.QPointF Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__iadd__(p)

Parameters:p – PySide.QtCore.QPointF Return type:PySide.QtCore.QPointF

Adds the given point to this point and returns a reference to this point. For example:

p = QPointF( 3.1, 7.1)
q = QPointF(-1.0, 4.1)
p += q    # p becomes (2.1, 11.2)

See also

PySide.QtCore.QPointF.operator-=()

PySide.QtCore.QPointF.__sub__()

Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__sub__(p2)

Parameters:p2 – PySide.QtCore.QPointF Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__isub__(p)

Parameters:p – PySide.QtCore.QPointF Return type:PySide.QtCore.QPointF

Subtracts the given point from this point and returns a reference to this point. For example:

p = QPointF( 3.1, 7.1)
q = QPointF(-1.0, 4.1)
p -= q    # p becomes (4.1, 3.0)

See also

PySide.QtCore.QPointF.operator+=()

PySide.QtCore.QPointF.__div__(c)

Parameters:c – PySide.QtCore.qreal Return type:PySide.QtCore.QPointF

PySide.QtCore.QPointF.__idiv__(c)

Parameters:c – PySide.QtCore.qreal Return type:PySide.QtCore.QPointF

Divides both x and y by the given divisor , and returns a reference to this point. For example:

p = QPointF(-2.75, 10.25)
p /= 2.5  # p becomes (-1.1, 4.1)

See also

PySide.QtCore.QPointF.operator*=()

PySide.QtCore.QPointF.__eq__(p2)

Parameters:p2 – PySide.QtCore.QPointF Return type:PySide.QtCore.bool

PySide.QtCore.QPointF.setX(x)

Parameters:x – PySide.QtCore.qreal

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

See also

PySide.QtCore.QPointF.x() PySide.QtCore.QPointF.setY()

PySide.QtCore.QPointF.setY(y)

Parameters:y – PySide.QtCore.qreal

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

See also

PySide.QtCore.QPointF.y() PySide.QtCore.QPointF.setX()

PySide.QtCore.QPointF.toPoint()

Return type:PySide.QtCore.QPoint

Rounds the coordinates of this point to the nearest integer, and returns a PySide.QtCore.QPoint object with the rounded coordinates.

See also

PySide.QtCore.QPointF.QPointF()

PySide.QtCore.QPointF.toTuple()

Return type:PyObject

PySide.QtCore.QPointF.x()

Return type:PySide.QtCore.qreal

Returns the x-coordinate of this point.

See also

PySide.QtCore.QPointF.setX() PySide.QtCore.QPointF.rx()

PySide.QtCore.QPointF.y()

Return type:PySide.QtCore.qreal

Returns the y-coordinate of this point.

See also

PySide.QtCore.QPointF.setY() PySide.QtCore.QPointF.ry()