内容

• 特性
• 信号
• 方法
• 详细描述

BarCategoryAxis QML Type

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

导入语句：	import QtCharts 2.2
实例化：	QBarCategoryAxis
继承：	AbstractAxis

• 所有成员列表，包括继承成员

特性

• categories : QStringList
• count : int
• max : string
• min : string

信号

• rangeChanged (string min , string max )

方法

• void clear ()

详细描述

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

The following QML snippet illustrates how to use BarCategoryAxis :

ChartView {
    BarCategoryAxis {
        id: categoryAxis
        categories: ["Jan", "Feb", "Mar", "Apr", "May", "Jun" ]
    }
// Add a few series...
}
					

特性文档编制

categories : QStringList

The categories of an axis.

count : int

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 )

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

The corresponding signal handler is 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 .