内容

特性
信号
方法
详细描述

BoxPlotSeries QML Type

Presents data in box-and-whiskers charts. 更多...

导入语句：	import QtCharts 2.3
实例化：	QBoxPlotSeries
继承：	AbstractSeries

所有成员列表，包括继承成员

特性

axisX : AbstractAxis
axisXTop : AbstractAxis
axisY : AbstractAxis
axisYRight : AbstractAxis
boxOutlineVisible : bool
boxWidth : real
brushFilename : string
count : int

信号

boxsetsAdded (list sets )
boxsetsRemoved (list sets )
clicked (BoxSet boxset )
doubleClicked (BoxSet boxset )
hovered (bool status , BoxSet boxset )
pressed (BoxSet boxset )
released (BoxSet boxset )

方法

append (string label , VariantList values )
append (BoxSet box )
at (int index )
clear ()
insert (int index , string label , VariantList values )
remove (QBoxSet boxset )

详细描述

A box plot series acts as a container for box-and-whiskers items. Items from multiple series are grouped into categories according to their index value.

BarCategoryAxis class is used to add the categories to the chart's axis. Category labels have to be unique. If the same category label is defined for several box-and-whiskers items, only the first one is drawn.

The following QML code snippet shows how to create a simple box-and-whiskers chart:

import QtQuick 2.0
import QtCharts 2.0
ChartView {
    title: "Box Plot series"
    width: 400
    height: 300
    theme: ChartView.ChartThemeBrownSand
    legend.alignment: Qt.AlignBottom
    BoxPlotSeries {
        id: plotSeries
        name: "Income"
        BoxSet { label: "Jan"; values: [3, 4, 5.1, 6.2, 8.5] }
        BoxSet { label: "Feb"; values: [5, 6, 7.5, 8.6, 11.8] }
        BoxSet { label: "Mar"; values: [3.2, 5, 5.7, 8, 9.2] }
        BoxSet { label: "Apr"; values: [3.8, 5, 6.4, 7, 8] }
        BoxSet { label: "May"; values: [4, 5, 5.2, 6, 7] }
    }
}

另请参阅 BoxSet and BarCategoryAxis .

特性文档编制

axisX : AbstractAxis

The x-axis used for the series. If you leave both axisX and axisXTop undefined, a BarCategoryAxis is created for the series.

另请参阅 axisXTop .

axisXTop : AbstractAxis

The x-axis used for the series, drawn on top of the chart view.

注意： You can only provide either axisX or axisXTop, but not both.

另请参阅 axisX and axisX .

axisY : AbstractAxis

The y-axis used for the series. If you leave both axisY and axisYRight undefined, a ValueAxis is created for the series.

另请参阅 axisYRight .

axisYRight : AbstractAxis

The y-axis used for the series, drawn to the right on the chart view.

注意： You can only provide either axisY or axisYRight, but not both.

另请参阅 axisY .

boxOutlineVisible : bool

The visibility of the box outline.

boxWidth : real

The width of the box-and-whiskers item. The value indicates the relative width of the item within its category. The value can be between 0.0 and 1.0. Negative values are replaced with 0.0 and values greater than 1.0 are replaced with 1.0.

brushFilename : string

The name of the file used as a brush for the series.

count : int

The number of box-and-whiskers items in a box plot series.

信号文档编制

boxsetsAdded ( list sets )

This signal is emitted when the box-and-whiskers items specified by sets are added to the series.

The corresponding signal handler is onBoxsetsAdded() .

boxsetsRemoved ( list sets )

This signal is emitted when the box-and-whiskers items specified by sets are removed from the series.

The corresponding signal handler is onBoxsetsRemoved() .

clicked ( BoxSet boxset )

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

The corresponding signal handler is onClicked() .

doubleClicked ( BoxSet boxset )

This signal is emitted when the user double-clicks the box-and-whiskers item specified by boxset in the chart.

The corresponding signal handler is onDoubleClicked() .

hovered ( bool status , BoxSet boxset )

This signal is emitted when a mouse is hovered over the box-and-whiskers item specified by boxset in the 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() .

pressed ( BoxSet boxset )

This signal is emitted when the user presses the boxset on the chart.

The corresponding signal handler is onPressed .

released ( BoxSet boxset )

This signal is emitted when the user releases the mouse press on the box-and-whiskers item specified by boxset in the chart.

The corresponding signal handler is onReleased() .

方法文档编制

append ( string label , VariantList values )

Appends a new box-and-whiskers item with the label specified by label and the values specified by values 到系列。

append ( BoxSet box )

Appends the box-and-whiskers item specified by box 到系列。

at ( int index )

Returns the box-and-whiskers item in the position specified by index .

clear ()

Removes all box-and-whiskers items from the series and permanently deletes them.

insert ( int index , string label , VariantList values )

Inserts a new box-and-whiskers item with the label specified by label and the values specified by values to the series at the position specified by index .

remove ( QBoxSet boxset )

Removes the box-and-whiskers item specified by boxset from the series.