jfreechart map热点自定义，急求

Question

jfreechartmap热点自定义jfreechart 时序图折线图 jfreechart

Answer 1

StandardEntityCollection sec = new StandardEntityCollection(); ChartRenderingInfo info = new ChartRenderingInfo(sec); // 输出MAP信息
String filename = null;
try {
PrintWriter w = response.getWriter();
filename = ServletUtilities.saveChartAsPNG(chart, 1000,
500, info, session);

String map = ChartUtilities.getImageMap(filename,info);
System.out.println(map);

Document dom=DocumentHelper.parseText(map);
Element root=dom.getRootElement();
List maps = root.selectNodes("/map/area");  
// for(Iterator i = maps.iterator(); i.hasNext();){
// Element area=(Element) i.next();
// System.out.println(area.attributeValue("title"));
// }
for(int i=0;i<maps.size();i++){
Element area=(Element) maps.get(i);

System.out.println(area.attributeValue("title"));

if(hotmap.size()==maps.size()){

area.setAttributeValue("title",hotmap.get(i));
System.out.println(hotmap.get(i));
}
}

map=dom.asXML(); 


System.out.println(map);

ChartUtilities.writeImageMap(w,"map0", info,false);
String graphURL = request.getContextPath()
+ "/DisplayChart?filename=" + filename;

Answer 2

如何将我打印出来的map值换成我想要的map并作为热点显示在图表上啊？？