veins - 为什么我不能在 TraCIDemo 中使用 bsm 消息？

Question

我正在使用 omnetpp 5.4.1、静脉 4.7.1 和 sumo-0.30.0。我正在 TraCIDemo11p 中编写自己的代码，我真的需要使用 bsm 消息。但是 TraCIDemo11p 不允许我使用它。例如，我在 TraCIDemo11p 类的 handlepositionupdate 方法中创建了一个数组，因为我想在其中添加 bsm。但是我遇到了运行时错误，而当我添加 wsa 和 wsm 时没有发生错误。我的问题是什么。我真的需要帮助，我很感激任何指导。我的代码是： void TraCIDemo11p::handlePositionUpdate(cObject* obj) { BaseWaveApplLayer::handlePositionUpdate(obj);

// stopped for for at least 10s?
if (mobility->getSpeed() < 1) {
    if (simTime() - lastDroveAt >= 10 && sentMessage == false) {
        findHost()->getDisplayString().updateWith("r=16,red");
        sentMessage = true;

        WaveShortMessage* wsm = new WaveShortMessage();
        populateWSM(wsm);
        wsm->setWsmData(mobility->getRoadId().c_str());


        //host is standing still due to crash
        if (dataOnSch) {
            startService(Channels::SCH2, 42, "Traffic Information Service");
            //started service and server advertising, schedule message to self to send later
            scheduleAt(computeAsynchronousSendingTime(1,type_SCH),wsm);
        }
        else {
            //send right away on CCH, because channel switching is disabled
            sendDown(wsm);
        }
    }
}
else {
    lastDroveAt = simTime();
}

Coord senderPosition = 移动性->getCurrentPosition();

//Get all available nodes in simulation
std::map<std::string, cModule*> availableCars = mobility->getManager()- 

getManagedHosts();

//Iterate through collection and find distance,
std::map<std::string, cModule*>::iterator it;

for(it = availableCars.begin(); it != availableCars.end(); it++)
{

    TraCIMobility* mobility1 = TraCIMobilityAccess().get(it->second);
    Coord receiverPosition = mobility1->getCurrentPosition(); 

   double distance=senderPosition.distance(receiverPosition);

    std::cout<<"we defined distance"<<endl;
    WaveShortMessage* wsm = new WaveShortMessage();
    BasicSafetyMessage* bsm = new BasicSafetyMessage();

    wsm->setDistance(distance);

   cArray array("array1");
   array.add(wsm);

    double dist[400];
    double TheMax=dist[0];

  for(int i=0;i<array.size();i++){
   std::cout<< wsm->getDistance() << endl;
   dist[i]=wsm->getDistance();
   if(dist[i]>TheMax){
   TheMax=dist[i];
    int index=i;
    std::cout<<"the max distance is "<<TheMax<<endl;
   }}

  simtime_t T=simTime()+60;
      Coord senderPosition1=mobility->getPositionAt(T);

       double direction1=mobility->getAngleRad();
  std::map<std::string, cModule*> availableCars = mobility->getManager()- 
  >getManagedHosts();

      std::map<std::string, cModule*>::iterator it;

 for(it = availableCars.begin(); it != availableCars.end(); it++)
   {



       TraCIMobility* mobility2 = TraCIMobilityAccess().get(it->second);

       double direction2=mobility2->getAngleRad();

       Coord receiverPosition1=mobility2->getPositionAt(T);

         if(direction2!=direction1){

          std::cout<<"they move in opposite direction"<<endl;
         }
          double distance1=senderPosition.distance(receiverPosition);
          std::cout<<"the first distance is "<<distance1 <<endl;

          WaveShortMessage* wsm = new WaveShortMessage();
          BasicSafetyMessage* bsm = new BasicSafetyMessage();
          cArray array("array1");
          int index = array.add(wsm);
         double distance2=senderPosition1.distance(receiverPosition1);

          std::cout<<"the second distance is:"<<distance2<<endl;
          if(distance2>distance1){
            std::cout<<"they are getting far away"<<endl;
            array.remove(wsm);
         }  } }}

标签： veins