Flex中如何创建一个线性斜度填充列图(ColumnChart)的例子

<dateformatter id="dateFormatter" formatstring="DD"></dateformatter><currencyformatter id="currencyFormatter" precision="2"></currencyformatter><xmllistcollection id="dp"><source><xmllist><quote date="8/1/2007" open="40.29" close="39.58"></quote><quote date="8/2/2007" open="39.4" close="39.52"></quote><quote date="8/3/2007" open="39.47" close="38.75"></quote><quote date="8/6/2007" open="38.71" close="39.38"></quote><quote date="8/7/2007" open="39.08" close="39.42"></quote><quote date="8/8/2007" open="39.61" close="40.23"></quote><quote date="8/9/2007" open="39.9" close="40.75"></quote><quote date="8/10/2007" open="41.3" close="41.06"></quote><quote date="8/13/2007" open="41" close="40.83"></quote><quote date="8/14/2007" open="41.01" close="40.41"></quote><quote date="8/15/2007" open="40.22" close="40.18"></quote><quote date="8/16/2007" open="39.83" close="39.96"></quote><quote date="8/17/2007" open="40.18" close="40.32"></quote><quote date="8/20/2007" open="40.55" close="40.74"></quote><quote date="8/21/2007" open="40.41" close="40.13"></quote><quote date="8/22/2007" open="40.4" close="40.77"></quote><quote date="8/23/2007" open="40.82" close="40.6"></quote><quote date="8/24/2007" open="40.5" close="40.41"></quote><quote date="8/27/2007" open="40.38" close="40.81"></quote></xmllist></source></xmllistcollection><columnchart id="columnChart" showdatatips="true" dataprovider="{dp}" width="100%" height="100%"><!-- vertical axis --><verticalaxis><linearaxis baseatzero="false" labelfunction="linearAxis_labelFunc"></linearaxis></verticalaxis><!-- horizontal axis --><horizontalaxis><categoryaxis id="ca" categoryfield="@date" title="August 2007" labelfunction="categoryAxis_labelFunc"></categoryaxis></horizontalaxis><!-- horizontal axis renderer --><horizontalaxisrenderers><axisrenderer axis="{ca}" candroplabels="true"></axisrenderer></horizontalaxisrenderers><!-- series --><series><columnseries displayname="Open" xfield="@date" yfield="@open"><fill><lineargradient id="linearGradient"><entries><array><gradiententry color="red" ratio="0.0" alpha="1.0"></gradiententry><gradiententry color="black" ratio="1.0" alpha="1.0"></gradiententry></array></entries></lineargradient></fill></columnseries></series><!-- series filters --><seriesfilters><array></array></seriesfilters></columnchart> 本文转自:http://blog.minidx.com/2008/12/04/1679.html