BoxSet QML Type

Represents one item in a box-and-whiskers chart. 更多...

import 语句：	import QtCharts 2.15
实例化：	QBoxSet

所有成员列表，包括继承成员

特性

brushFilename : string
count : int
label : string
values : list

信号

cleared ()
clicked ()
doubleClicked ()
hovered (bool status )
pressed ()
released ()
valueChanged (int index )
valuesChanged ()

方法

void append (qreal value )
void at (int index )
void clear ()
void setValue (int index , qreal value )

详细描述

A box-and-whiskers item is a graphical representation of a range and three median values that is constructed from five different values. There are two ways to specify the values. The first one is by using a constructor or the append() method. The values have to be specified in the following order: lower extreme, lower quartile, median, upper quartile, and upper extreme.

The second way is to create an empty BoxSet instance and specify the values using the setValue() 方法。

另请参阅 BoxPlotSeries .

特性文档编制

brushFilename : string

The name of the file used as a brush for the box-and-whiskers item.

count : int

The number of values of the box-and-whiskers item.

label : string

The label of the category of the box-and-whiskers item.

值 : list

The values of the box-and-whiskers item. The following enumerations can be used as indexes when accessing the list of values:

常量	描述
`BoxSet.LowerExtreme`	The smallest value of the box-and-whiskers item.
`BoxSet.LowerQuartile`	The median value of the lower half of the box-and-whiskers item.
`BoxSet.Median`	The median value of the box-and-whiskers item.
`BoxSet.UpperQuartile`	The median value of the upper half of the box-and-whiskers item.
`BoxSet.UpperExtreme`	The largest value of the box-and-whiskers item.

另请参阅 at() and setValue() .

信号文档编制

cleared ()

This signal is emitted when all the values of the box-and-whiskers item are set to 0.

The corresponding signal handler is onCleared() .

注意： 相应处理程序是 onCleared .

clicked ()

This signal is emitted when the user clicks a box-and-whiskers item in the chart.

The corresponding signal handler is onClicked() .

注意： 相应处理程序是 onClicked .

doubleClicked ()

This signal is emitted when the user double-clicks a box-and-whiskers item.

The corresponding signal handler is onDoubleClicked() .

注意： 相应处理程序是 onDoubleClicked .

hovered ( bool status )

This signal is emitted when a mouse is hovered over a box-and-whiskers item in a chart. When the mouse moves over the item, status turns true , and when the mouse moves away again, it turns false .

The corresponding signal handler is onHovered() .

注意： 相应处理程序是 onHovered .

pressed ()

This signal is emitted when the user clicks a box-and-whiskers item in the chart and holds down the mouse button.

The corresponding signal handler is onPressed .

注意： 相应处理程序是 onPressed .

released ()

This signal is emitted when the user releases the mouse press on a box-and-whiskers item.

The corresponding signal handler is onReleased() .

注意： 相应处理程序是 onReleased .

valueChanged ( int index )

This signal is emitted when the value of the box-and-whiskers item specified by index 改变。

The corresponding signal handler is onValueChanged() .

注意： 相应处理程序是 onValueChanged .

valuesChanged ()

This signal is emitted when multiple values of the box-and-whiskers item change.

The corresponding signal handler is onValuesChanged() .

注意： 相应处理程序是 onValuesChanged .

方法文档编制

void append ( qreal value )

Appends the new value specified by value to the end of the box-and-whiskers item.

void at ( int index )

Returns the value in the position specified by index .

void clear ()

Sets all the values of the box-and-whiskers item to 0.

void setValue ( int index , qreal value )

Sets the value specified by value in the position specified by index .