flex4 amcharts 去除水印

package com.twobowl.component.manualTopo
{
	
	import com.amcharts.AmPieChart;
	import com.amcharts.chartClasses.AmChart;
	
	public class MYAmPieChart extends AmPieChart
	{
		
		
		
		public function MYAmPieChart()
		{
			super();
		}
		override protected function createChildren():void{
			super.createChildren();
			if(_amchartsLink){
				_amchartsLink.alpha=0;
				_amchartsLink.width=0;
				_amchartsLink.height=0;
			}
			_amchartsLink.visible = false;
			return;
		}
	}
}

package com.twobowl.component.manualTopo//自定义包名
{
	import com.amcharts.AmSerialChart;
	import com.amcharts.chartClasses.AmChart;
	
	public class MYAmchartst extends AmSerialChart
	{
		
			
		
				public function MYAmchartst()
				{
					super();
				}
				override protected function createChildren():void{
					super.createChildren();
					if(_amchartsLink){
						_amchartsLink.alpha=0;
						_amchartsLink.width=0;
						_amchartsLink.height=0;
					}
					_amchartsLink.visible = false;
					return;
				}
			}
		}

2.

<?xml version="1.0" encoding="utf-8"?>


<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx" 
               xmlns:amcharts="http://www.amcharts.com/com_internal"
			   xmlns:am="com.twobowl.component.manualTopo.*"
               backgroundColor="#FFFFFF"
               width="100%" height="100%"
               >
	<s:layout>
		<s:VerticalLayout horizontalAlign="center" paddingTop="30"/>
	</s:layout>
    <fx:Script>
        <![CDATA[
			import com.amcharts.events.PieChartEvent;
			import com.twobowl.component.manualTopo.*;
			
			import mx.collections.ArrayCollection;
            [Bindable]
            private var chartData:ArrayCollection = new ArrayCollection( [
				{year:"2000",a:20,b:5,c:10,d:5},{year:"2001",a:21,b:6,d:10},{year:"2002",a:24,b:7,c:9,{year:"2003",d:8},{year:"2004",b:4,{year:"2005",a:26,b:8,d:9},{year:"2006",a:27,b:9,c:12,{year:"2007",a:29,c:13,{year:"2008",a:30,b:10,c:14,d:7},{year:"2009",b:12,c:15,{year:"2010",b:11,{year:"2011",a:22,b:14,c:11,{year:"2012",b:16,{year:"2013",b:17,d:6},{year:"2014",a:15,b:19,{year:"2015",a:14,b:18,d:3}]);
			[Bindable]
			private var chartDatas:ArrayCollection = new ArrayCollection([
				{year:2005,income:23.5,expenses:18.1},{year:2006,income:26.2,expenses:22.8},{year:2007,income:30.1,expenses:23.9},{year:2008,income:29.5,expenses:25.1},{year:2009,income:24.6,expenses:25.0}
			]);    
			protected function myampiechart1_clickHandler(event:PieChartEvent):void
			{
				// TODO Auto-generated method stub
				//event.item.dataContext.
				chart.dataProvider=chartDatas;
			}
			
		]]>
    </fx:Script>
	<s:HGroup width="100%" height="50%"> 
		<s:VGroup  width="50%" height="100%">
			<am:MYAmPieChart width="50%" height="100%" dataProvider="{chartData}" titleField="year" valueField="a" clickSlice=" myampiechart1_clickHandler(event)" />
			
		</s:VGroup>
		<s:VGroup  width="50%" height="100%">
				<am:MYAmchartst
					width="50%"
					height="100%"
					id="chart2"
					dataProvider="{chartData}"
					categoryField="year"
					plotAreaFillAlphas="[0]">
					<am:graphs>
						<amcharts:AmGraph 
							color="#FFFFFF" 
							title="Sample a" 
							valueField="a" 
							type="line" 
							lineThickness="2"
							lineAlpha="1" 
							fillAlphas="[0.7]"
							showBalloon="false"/>                        
						<amcharts:AmGraph 
							color="#FFFFFF" 
							title="Sample b" 
							valueField="b" 
							type="line" 
							lineThickness="2"
							lineAlpha="1" 
							fillAlphas="[0.7]"/>
						<amcharts:AmGraph 
							color="#FFFFFF" 
							title="Sample c" 
							valueField="c" 
							type="line" 
							lineThickness="2"
							lineAlpha="1" 
							fillAlphas="[0.7]"
							showBalloon="false"/>
						<amcharts:AmGraph 
							color="#FFFFFF" 
							title="Sample d" 
							valueField="d" 
							type="line" 
							lineThickness="2"
							lineAlpha="1"
							fillAlphas="[0.7]"/>
					</am:graphs>
					
					<am:valueAxes>
						<amcharts:ValueAxis stackType="regular" gridAlpha="0.1"/>                    
					</am:valueAxes>
					
					<am:categoryAxis>
						<amcharts:CategoryAxis gridAlpha="0.1" fontWeight="bold" startOnAxis="true" position="top"/>
					</am:categoryAxis>
					
					<am:chartScrollbar>
						<amcharts:ChartScrollbar height="20"/>                    
					</am:chartScrollbar>
					
					<am:chartCursor>
						<amcharts:ChartCursor/>                    
					</am:chartCursor>
					
				</am:MYAmchartst>
				
				<amcharts:AmLegend 
					fontWeight="bold"
					reversedOrder="true" 
					rollOverGraphAlpha="0.1" 
					dataProvider="{chart2}" 
					width="100%"
					marginLeft="35"
					marginRight="15"
					markerType="circle"
					switchType="v"/>
		</s:VGroup>	
    </s:HGroup>
	
	<s:VGroup width="100%" height="50%">
		<am:MYAmchartst 
			width="100%"
			height="100%" 
			id="chart" 
			dataProvider="{chartDatas}" 
			categoryField="year" 
			startDuration="1" 
			angle="30" 
			depth3D="30">
			
			<am:categoryAxis>
				<amcharts:CategoryAxis gridPosition="start"/>
			</am:categoryAxis>
			
			<am:graphs>
				<amcharts:AmGraph title="Income" id="g0" valueField="income" type="column" lineAlpha="0" fillAlphas="[1]"/>                        
				<amcharts:AmGraph title="Expenses" id="g1" valueField="expenses" type="line" lineThickness="2" bullet="round"/>                        
			</am:graphs>
		</am:MYAmchartst>
		
		<amcharts:AmLegend dataProvider="{chart}" width="100%" switchType="v" marginRight="20" marginLeft="40" textClickEnabled="false" marginBottom="15"/>
	</s:VGroup>    
</s:Application>