我想在我的图表上放置一个容器(透明红色)。
如何获得该区域的原点(点A),宽度和高度?
答案 0 :(得分:1)
因此,如果您想将此容器放置为背景图像(我意识到这不是您想要做的),您可以在画布的标记中放置100%宽度和高度的画布。我相信有一个类似的属性在图表的顶部,也许你可以用这个做点什么?
编辑:它是您想要的注释元素:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" minWidth="955" minHeight="600">
<mx:Script><![CDATA[
import mx.collections.ArrayCollection;
[Bindable]
public var expenses:ArrayCollection = new ArrayCollection([
{Month:"Jan", Profit:2000, Expenses:1500, Amount:450},
{Month:"Feb", Profit:1000, Expenses:200, Amount:600},
{Month:"Mar", Profit:1500, Expenses:500, Amount:300}
]);
]]></mx:Script>
<mx:Panel title="Line Chart">
<mx:LineChart id="myChart"
dataProvider="{expenses}"
showDataTips="true"
>
<mx:horizontalAxis>
<mx:CategoryAxis
dataProvider="{expenses}"
categoryField="Month"
/>
</mx:horizontalAxis>
<mx:series>
<mx:LineSeries
yField="Profit"
displayName="Profit"
/>
<mx:LineSeries
yField="Expenses"
displayName="Expenses"
/>
</mx:series>
<mx:annotationElements>
<mx:Canvas backgroundAlpha=".5" backgroundColor="0xff0000" />
</mx:annotationElements>
</mx:LineChart>
<mx:Legend dataProvider="{myChart}"/>
</mx:Panel>
</mx:Application>