BarCategoryAxis QML Type

Adds categories to a graph's axes. 更多...

import 语句：	import QtGraphs
实例化：	QBarCategoryAxis
继承：	AbstractAxis
状态：	技术预览

所有成员列表，包括继承成员
BarCategoryAxis is part of Qt Graphs QML Types for 2D .

特性

categories : list
count : int
max : string
min : string

信号

rangeChanged (string min , string max )

方法

void clear ()

详细描述

The BarCategoryAxis type can be set up to show an axis line with tick marks, grid lines, and shades. Categories are drawn between the ticks.

The following QML snippet illustrates how to use BarCategoryAxis:

GraphsView {
    anchors.fill: parent
    BarSeries {
        axisX: BarCategoryAxis {
            categories: ["2023", "2024", "2025"]
            lineVisible: false
        }
        axisY: ValueAxis { }
        BarSet {
            values: [7, 6, 9]
        }
    }
}

特性文档编制

categories : list

The categories of an axis.

count : int [read-only]

The number of categories of an axis.

max : string

The maximum value on the axis.

min : string

The minimum value on the axis.

信号文档编制

rangeChanged ( string min , string max )

此信号发射当 min or max value of the axis changes.

The corresponding signal handler is onRangeChanged .

注意： 相应处理程序是 onRangeChanged .

方法文档编制

void clear ()

Removes all categories. Sets the maximum and minimum values of the axis range to QString::null.