如何使用JFreeChart在圖像映射中設置屬性

Question

如何在servlet中使用JFreeChart設置圖像映射的屬性？

例子：

<map id="imageMap" name="imageMap"> 
<area shape="rect" coords="98,200,155,328" title="(Section, First Section) = 9" alt="" href="index.html?series=Section&amp;category=First+Section"/> 
<area shape="rect" coords="50,301,674,643" title=" axisType='XAXIS' " alt=""/> 
<area shape="rect" coords="0,0,50,342" title=" axisType='YAXIS' " alt=""/> 
</map> 

我想設置ID或類屬性爲每個區域標記爲它看起來像這樣：

<map id="imageMap" name="imageMap" class="sectionImageMap"> 
<area id="sec_1" class= "section" shape="rect" coords="98,200,155,328" title="(Section, First Section) = 9" alt="" href="javascript:getReports('this')"/> 
<area id="sec_2" class= "section" shape="rect" coords="50,301,674,643" title=" axisType='XAXIS' " alt="" href="javascript:getReports('this')"/> 
<area id="sec_3" class= "section" shape="rect" coords="0,0,50,342" title=" axisType='YAXIS' " alt="" href="javascript:getReports('this')"/> 
</map> 

Answer 1

你應該能夠使用org.jfree.chart.annotations.XYAnnotation;有幾個顯示在here和samples/demos。