ValueAxis QML Type

Adds values to a graph's axes. 更多...

import 语句：	`import QtGraphs`
在 C++：	QValueAxis
继承：	AbstractAxis

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

特性

labelDecimals : int
labelFormat : string
max : real
min : real
subTickCount : int
tickAnchor : real
tickInterval : real

信号

labelDecimalsChanged (int decimals )
labelFormatChanged (string format )
maxChanged (real max )
minChanged (real min )
rangeChanged (real min , real max )
subTickCountChanged (int subTickCount )
tickAnchorChanged (real tickAnchor )
tickIntervalChanged (real tickInterval )

详细描述

The ValueAxis type can be set up to show an axis line with tick marks, grid lines, and shades. The values on the axis are drawn at the positions of tick marks.

The following example code illustrates how to use the ValueAxis type:

GraphsView {
    axisX: ValueAxis {
        max: 10
        tickInterval: 1
    }
    axisY: ValueAxis {
        min -20
        max: 40
    }
    LineSeries {
        // Add a few XYPoint data...
    }
}

特性文档编制

labelDecimals : int

The number of decimals used for showing the labels. When set to -1, decimal amount is adjusted automatically based on the values range. The default value is -1.

labelFormat : string

格式字符串支持的以下转换说明符、长度修饰符和标志的提供通过 printf() 在标准 C++ 库：d、i、o、x、X、f、F、e、E、g、G、c。

The default value is empty, in which case 'f' format is used.

另请参阅 QString::asprintf ().

max : real

The maximum value on the axis.

When setting this property, the minimum value is adjusted if necessary, to ensure that the range remains valid. The default value is 10.0

min : real

The minimum value on the axis.

When setting this property, the maximum value is adjusted if necessary, to ensure that the range remains valid. The default value is 0.0

subTickCount : int

The number of subticks on the axis. This indicates how many subticks are drawn between major lines on the graph. Labels are not drawn for subticks. The default value is 0.

tickAnchor : real

The base value where the dynamically placed tick marks and labels are started from. The default value is 0.

tickInterval : real

The interval between dynamically placed tick marks and labels. The default value is 0, which means that intervals are automatically calculated based on the min and max range.

信号文档编制

labelDecimalsChanged ( int decimals )

This signal is emitted when the amount of axis label decimals changes to decimals .

注意： 相应处理程序是 onLabelDecimalsChanged .

labelFormatChanged ( string format )

This signal is emitted when the format of axis labels changes to format .

注意： 相应处理程序是 onLabelFormatChanged .

maxChanged ( real max )

This signal is emitted when the maximum value of the axis changes to max .

注意： 相应处理程序是 onMaxChanged .

minChanged ( real min )

This signal is emitted when the minimum value of the axis changes to min .

注意： 相应处理程序是 onMinChanged .

rangeChanged ( real min , real max )

This signal is emitted when the minimum or maximum value of the axis changes to min and max ，分别。

注意： 相应处理程序是 onRangeChanged .

subTickCountChanged ( int subTickCount )

This signal is emitted when the number of subticks on the axis, specified by subTickCount ，改变。

注意： 相应处理程序是 onSubTickCountChanged .

tickAnchorChanged ( real tickAnchor )

This signal is emitted when the tick anchoring value changes to tickAnchor .

注意： 相应处理程序是 onTickAnchorChanged .

tickIntervalChanged ( real tickInterval )

This signal is emitted when the tick interval value, changes to tickInterval .

注意： 相应处理程序是 onTickIntervalChanged .