Flex中如何创建放射线状填充列图(ColumnChart)图表的例子

下面是完整代码(或点击这里察看)：

Download: main.mxml

1. <?xml version="1.0"?>
2. <mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"
3. layout="vertical"
4. verticalAlign="middle"
5. backgroundColor="white">
7. <mx:Script>
8. <![CDATA[
9. import mx.charts.events.ChartItemEvent;
10. import mx.charts.chartClasses.IAxis;
11. import mx.charts.series.items.ColumnSeriesItem;
12. import mx.core.UIComponent;
14. private function linearAxis_labelFunc(item:Object, prevValue:Object, axis:IAxis):String {
15. return currencyFormatter.format(item);
16. }
18. private function categoryAxis_labelFunc(item:Object, prevValue:Object, axis:CategoryAxis, categoryItem:Object):String {
19. var datNum:Number = Date.parse(item);
20. var tempDate:Date = new Date(datNum);
21. return dateFormatter.format(tempDate).toUpperCase();
22. }
23. ]]>
24. </mx:Script>
26. <mx:DateFormatterid="dateFormatter" formatString="DD" />
27. <mx:CurrencyFormatterid="currencyFormatter" precision="2" />
29. <mx:XMLListCollectionid="dp">
30. <mx:source>
31. <mx:XMLList>
32. <quotedate="8/1/2007" open="40.29" close="39.58" />
33. <quotedate="8/2/2007" open="39.4" close="39.52" />
34. <quotedate="8/3/2007" open="39.47" close="38.75" />
35. <quotedate="8/6/2007" open="38.71" close="39.38" />
36. <quotedate="8/7/2007" open="39.08" close="39.42" />
37. <quotedate="8/8/2007" open="39.61" close="40.23" />
38. <quotedate="8/9/2007" open="39.9" close="40.75" />
39. <quotedate="8/10/2007" open="41.3" close="41.06" />
40. <quotedate="8/13/2007" open="41" close="40.83" />
41. <quotedate="8/14/2007" open="41.01" close="40.41" />
42. <quotedate="8/15/2007" open="40.22" close="40.18" />
43. <quotedate="8/16/2007" open="39.83" close="39.96" />
44. <quotedate="8/17/2007" open="40.18" close="40.32" />
45. <quotedate="8/20/2007" open="40.55" close="40.74" />
46. <quotedate="8/21/2007" open="40.41" close="40.13" />
47. <quotedate="8/22/2007" open="40.4" close="40.77" />
48. <quotedate="8/23/2007" open="40.82" close="40.6" />
49. <quotedate="8/24/2007" open="40.5" close="40.41" />
50. <quotedate="8/27/2007" open="40.38" close="40.81" />
51. </mx:XMLList>
52. </mx:source>
53. </mx:XMLListCollection>
55. <mx:ColumnChartid="columnChart"
56. showDataTips="true"
57. dataProvider="{dp}"
58. width="100%"
59. height="100%">
61. <mx:backgroundElements>
62. <mx:GridLines>
63. <mx:horizontalStroke>
64. <mx:Strokecolor="haloSilver" weight="0" />
65. </mx:horizontalStroke>
66. </mx:GridLines>
67. </mx:backgroundElements>
69. <!-- vertical axis -->
70. <mx:verticalAxis>
71. <mx:LinearAxisbaseAtZero="false"
72. labelFunction="linearAxis_labelFunc"/>
73. </mx:verticalAxis>
75. <!-- horizontal axis -->
76. <mx:horizontalAxis>
77. <mx:CategoryAxisid="ca"
78. categoryField="@date"
79. title="August 2007"
80. labelFunction="categoryAxis_labelFunc"/>
81. </mx:horizontalAxis>
83. <!-- horizontal axis renderer -->
84. <mx:horizontalAxisRenderers>
85. <mx:AxisRendereraxis="{ca}"
86. canDropLabels="true"/>
87. </mx:horizontalAxisRenderers>
89. <!-- series -->
90. <mx:series>
91. <mx:ColumnSeriesdisplayName="Open"
92. xField="@date"
93. yField="@open">
94. <mx:fill>
95. <mx:RadialGradient>
96. <mx:entries>
97. <mx:Array>
98. <mx:GradientEntrycolor="white"
99. ratio="0.0"
100. alpha="1.0"/>
101. <mx:GradientEntrycolor="haloBlue"
102. ratio="1.0"
103. alpha="1.0"/>
104. </mx:Array>
105. </mx:entries>
106. </mx:RadialGradient>
107. </mx:fill>
108. </mx:ColumnSeries>
109. </mx:series>
111. <!-- series filters -->
112. <mx:seriesFilters>
113. <mx:Array/>
114. </mx:seriesFilters>
115. </mx:ColumnChart>
117. </mx:Application>

本文转自:http://blog.minidx.com/2008/12/16/1741.html