cewolf中,使X軸上的標籤傾斜45度

 

 1.主要實現思想:      利用ChartPostProcessor介面和<cewolf:chartpostprocessor>標籤實現   2.JSP代碼如下:
 <%@ page import="de.laures.cewolf.ChartPostProcessor"%>
 <%@ page import="org.jfree.chart.plot.CategoryPlot"%>
 <%@ page import="org.jfree.chart.axis.CategoryLabelPositions"%>
 <%@ page import="org.jfree.chart.JFreeChart"%>   <%
    ChartPostProcessor labelPosition = new ChartPostProcessor() {
    public void processChart(Object chart, Map params) {
        CategoryPlot plot = (CategoryPlot) ((JFreeChart) chart).getPlot();
        plot.getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.UP_45);
      }
    };
    pageContext.setAttribute("labelPosition", labelPosition);
  %>   <cewolf:chart id="pageChart2" title="日期柱狀圖" type="verticalBar" xaxislabel="時間" yaxislabel="數量">
    <cewolf:data>
        <cewolf:producer id="data1" />
    </cewolf:data>     <cewolf:chartpostprocessor id="labelPosition"></cewolf:chartpostprocessor>    <!-- 加入此標籤,以使X軸上的lable傾斜45度-->
 </cewolf:chart>
 
 <cewolf:img chartid="pageChart2" renderer="/adChart" width="500" height="500"/>