PySide6.QtWidgets.QGraphicsLineItem¶

class QGraphicsLineItem¶

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

Synopsis¶

Methods¶

def __init__()
def line()
def pen()
def setLine()
def setPen()

Note

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Detailed Description¶

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

__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

This is an overloaded function.

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()