我有一个模型,在不同种类的其他代理(对象)之间有很多边(链接)。我想将这些边缘建模为代理,以便在其中添加属性和安排操作。看看如何完成这项工作的简单示例会很有帮助?
更新: 我按照您的指示进行操作,并在运行模型时出现错误:
FATAL [Thread-2] 12:45:02,901 repast.simphony.ui.GUIScheduleRunner - RunTimeException when running the schedule
Current tick (1.0)
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at repast.simphony.engine.schedule.DynamicTargetAction.execute(DynamicTargetAction.java:72)
at repast.simphony.engine.controller.ScheduledMethodControllerAction$ScheduleMethodAllAction.execute(ScheduledMethodControllerAction.java:333)
at repast.simphony.engine.schedule.DefaultAction.execute(DefaultAction.java:38)
at repast.simphony.engine.schedule.ScheduleGroup.executeList(ScheduleGroup.java:205)
at repast.simphony.engine.schedule.ScheduleGroup.execute(ScheduleGroup.java:231)
at repast.simphony.engine.schedule.Schedule.execute(Schedule.java:352)
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:52)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.reflect.InvocationTargetException
at jzombies.Zombie$$FastClassByCGLIB$$6141f31.invoke(<generated>)
at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
at repast.simphony.engine.schedule.DynamicTargetAction.execute(DynamicTargetAction.java:69)
... 7 more
Caused by: java.lang.NullPointerException
at repast.simphony.query.PropertyGreaterThan.createPredicate(PropertyGreaterThan.java:72)
at repast.simphony.query.AbstractPropertyQuery.query(AbstractPropertyQuery.java:83)
at jzombies.Zombie.query_energy(Zombie.java:141)
at jzombies.Zombie.step(Zombie.java:67)
... 10 more
我认为它受到Zombie中此方法的影响:(但我不知道哪里出了问题,因为错误消息未提供具体说明)
public void query_energy() {
// Zombie this_zombie = new Zombie (space, grid, 9999);
Context<Object> context = ContextUtils.getContext(this);
Query<Object> query = new PropertyGreaterThan<Object>(context, "id", 2);
for (Object o : query.query()) {
Zombie h = (Zombie)o;
System.out.println("zombie id: " + h.getID());
}
}
答案 0 :(得分:3)
这是一个基于JZombies_Demo模型的示例。
首先创建一个CustomEdge类。
const Parent = () => {
const [isLoading, setIsLoading] = useState(false);
const [setDataToDownload, dataToDownload] = useState();
return (
<>
{isLoading && <Spinner />}
<Dropdown>
{({ close }) =>
options.map(op => (
<ChildOption
isLoading={isLoading}
setDataToDownload={setDataToDownload}
dataToDownload={dataToDownload}
setIsLoading={setIsLoading}
close={close}
op={op}
/>
))
}
</Dropdown>
</>
);
};
const ChildOption = ({ close, isLoading, setIsLoading }) => {
return (
<div
onClick={async () => {
close();
setIsLoading(true);
const data = await fetchSomeStuff();
setDataToDownload(data);
setIsLoading(false);
}}
>
{op.name}
</div>
);
};
然后创建CustomEdgeCreator类:
package jzombies;
import repast.simphony.space.graph.RepastEdge;
public class CustomEdge<T> extends RepastEdge<T> {
private double customProperty;
public double getCustomProperty() {
return customProperty;
}
public void setCustomProperty(double customProperty) {
this.customProperty = customProperty;
}
public CustomEdge(T source, T target, boolean directed, double weight) {
super(source, target, directed, weight);
}
public CustomEdge(T source, T target, boolean directed) {
super(source, target, directed);
}
public void customAction() {
// define custom action here
}
}
然后,当您在JZombiesBuilder类中定义NetworkBuilder时,将提供一个CustomEdgeCreator实例:
package jzombies;
import repast.simphony.space.graph.EdgeCreator;
public class CustomEdgeCreator<T> implements EdgeCreator<CustomEdge<T>, T> {
public Class<CustomEdge> getEdgeType() {
return CustomEdge.class;
}
public CustomEdge<T> createEdge(T source, T target, boolean isDirected, double weight) {
return new CustomEdge<T>(source, target, isDirected, weight);
}
}
这时,每当您向网络添加边缘时,您就可以访问边缘实例并安排您定义的任何自定义操作,例如Zombie类中的此类操作:
NetworkBuilder<Object> netBuilder = new NetworkBuilder<Object>(
"infection network", context, true).setEdgeCreator(new CustomEdgeCreator());
netBuilder.buildNetwork();
我希望这会有所帮助。