[Swarm-Modelling] A question about using jFreeChart in Model

[John Lee]

Hi,

  The other day I found the Java Swarm based ASM’s BarChart is using jFreeChart, I want to use it in my Model.  But I found I couldn’t update the data, it always stay in initial data.

How should I do to update dataset?  Thank you very much.

  The following is part of my code.

 

In ObserverSwarm:

 

…

           displayActions.createActionTo$message

          (chart, new Selector (chart.getClass (), "_updateChart_", false));

…

 

In BarChart’s Class:

 

 

           …

           public Object _updateChart_ ()

         {

         int x, y;

int c = 0;

      world = new Grid2dImpl(getZone(), WorldXSize, WorldYSize);

      Trade test2 = new Trade(world);

      for (x = 0; x < WorldXSize; x++) {

          for (y = 0; y < WorldYSize; y++) {

              Integer a = new Integer(c + 1);

              positionData.setValue(0, a.toString(),

                                    new Double(test2.getCount(x,y)));

              c++;

          }

      }

      positionChart.setDataset(positionData);

      return this;

         }

 

 

//getCount(x,y) means to get data in two-dimension array.