jfreechart - How to add two TimeSeries JfreeChart

Question

I want to add two or more timeSeries in order to generate stacked line graph. I could not find something in the API. I am trying to do it manually but still does not work as I want. Is there any function in the API, or not, that could manage this? Thanks

Answer 1

好吧，这很有效^^
rtp：RegulatTimePeriod 实例。在遍历两个系列的数据集时，如果没有当前 rtp 的记录，我们使用此代码添加一个新节点，或者通过值的总和来更新现有节点。

if(StackedSerie.getValue(rtp)!=null){         //stacked lines dataset
StackedSerie.addOrUpdate(rtp,(double)((float)v + StackedSerie.getValue(rtp).floatValue()));
                        }
                        else
                        {
                            StackedSerie.add(rtp,v);
                        }