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c++simulationomnet++veinssumo

Calculating distance between cars nodes VEINS

I am new to VEINS and trying to implement weighted p-persistence inside MyVeinsApp.cc. Distance between the sending node and receiving is used in that formula. I saw the 2 functions below.

virtual Coord& getSenderPos();
virtual const Coord& getSenderPos() const {return const_cast<WaveShortMessage*>(this)->getSenderPos();}

Should I use one of those methods to calculate the distance between nodes?

Please advise on the best approach.

Solution

  • For the distance you obviously need the two positions. You can get the position of the current node by asking the mobility module and the position of the sender from the message you received. Then you can use the following method from Coord to calculate the distance between two points:

    /**
 * @brief Returns the distance to Coord 'a'.
 */
double distance(const Coord& a) const {
    Coord dist(*this - a);
    return dist.length();
}