PySide6.QtWidgets.QGraphicsLineItem

class QGraphicsLineItem

The QGraphicsLineItem class provides a line item that you can add to a QGraphicsScene .

Details

To set the item’s line, pass a QLineF to QGraphicsLineItem ‘s constructor, or call the setLine() function. The line() function returns the current line. By default the line is black with a width of 0, but you can change this by calling setPen() .

QGraphicsLineItem uses the line and the pen width to provide a reasonable implementation of boundingRect() , shape() , and contains() . The paint() function draws the line using the item’s associated pen.

See also

QGraphicsPathItem QGraphicsRectItem QGraphicsEllipseItem QGraphicsTextItem QGraphicsPolygonItem QGraphicsPixmapItem Graphics View Framework

Synopsis

Methods

• def __init__()

• def line()

• def pen()

• def setLine()

• def setPen()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

__init__([parent=None])

Parameters:

parent – QGraphicsItem

Constructs a QGraphicsLineItem . parent is passed to QGraphicsItem ‘s constructor.

See also

addItem()

__init__(line[, parent=None])

Parameters:

• line – QLineF

• parent – QGraphicsItem

Constructs a QGraphicsLineItem , using line as the default line. parent is passed to QGraphicsItem ‘s constructor.

See also

addItem()

__init__(x1, y1, x2, y2[, parent=None])

Parameters:

• x1 – float

• y1 – float

• x2 – float

• y2 – float

• parent – QGraphicsItem

Constructs a QGraphicsLineItem , using the line between (x1, y1) and (x2, y2) as the default line. parent is passed to QGraphicsItem ‘s constructor.

See also

addItem()

line()

Return type:

QLineF

Returns the item’s line, or a null line if no line has been set.

See also

setLine()

pen()

Return type:

QPen

Returns the item’s pen, or a black solid 0-width pen if no pen has been set.

See also

setPen()

setLine(line)

Parameters:

line – QLineF

Sets the item’s line to be the given line.

See also

line()

setLine(x1, y1, x2, y2)

Parameters:

• x1 – float

• y1 – float

• x2 – float

• y2 – float

Sets the item’s line to be the line between (x1, y1) and (x2, y2).

This is the same as calling setLine(QLineF(x1, y1, x2, y2)).

setPen(pen)

Parameters:

pen – QPen

Sets the item’s pen to pen. If no pen is set, the line will be painted using a black solid 0-width pen.

See also

pen()