gullportrayal3d.java

MASON代表多主体邻里或网络仿真(Multi-Agent Simulator of Neighborhoods or Networks)。它是乔治梅森大学用Java开发的离散事件多主体仿真核心库

package sim.app.crowd3d;

import sim.portrayal3d.*;
import javax.media.j3d.*;

/**
 * portrayal3D for the GullCG compressed geometry
 * 
 * FixPortrayal3D(new GullCG()) won't do, since
 * GullCG is NodeComponnent, and should be
 * wrapped into a Node.
 * The bigger problem is that it must be
 * cloned or shared, so you can actually see more of them.
 * 
 * */
public class GullPortrayal3D extends SimplePortrayal3D
    {
    static final SharedGroup gullModel;
    static 
        {
        Shape3D gullShape = new Shape3D(new GullCG());
                

        gullModel = new SharedGroup();
        gullModel.addChild(gullShape);
        gullModel.compile();
        }
    
    public GullPortrayal3D(){}


    public TransformGroup getModel(Object obj, TransformGroup tg)
        {
        if(tg ==null)
            {
            TransformGroup j3dModel = new TransformGroup();
            j3dModel.addChild(new Link(gullModel));
            return j3dModel;
            }
        else return tg;
        }
    }