RORouteDef*
RORouteDef::copy(const std::string& id) const {
RORouteDef* result = new RORouteDef(id, 0, myTryRepair);
for (std::vector<RORoute*>::const_iterator i = myAlternatives.begin(); i != myAlternatives.end(); i++) {
RORoute* route = *i;
RGBColor* col = route->getColor() != 0 ? new RGBColor(*route->getColor()) : 0;
result->addLoadedAlternative(new RORoute(id, 0, 1, route->getEdgeVector(), col));
}
return result;
}
RORouteDef*
RORouteDef::copy(const std::string& id, const SUMOTime stopOffset) const {
RORouteDef* result = new RORouteDef(id, 0, myTryRepair, myMayBeDisconnected);
for (std::vector<RORoute*>::const_iterator i = myAlternatives.begin(); i != myAlternatives.end(); i++) {
RORoute* route = *i;
RGBColor* col = route->getColor() != 0 ? new RGBColor(*route->getColor()) : 0;
RORoute* newRoute = new RORoute(id, 0, 1, route->getEdgeVector(), col, route->getStops());
newRoute->addStopOffset(stopOffset);
result->addLoadedAlternative(newRoute);
}
return result;
}
void
RORouteDef::addAlternative(SUMOAbstractRouter<ROEdge, ROVehicle>& router,
const ROVehicle* const veh, RORoute* current, SUMOTime begin) {
if (myTryRepair) {
if (myNewRoute) {
delete myAlternatives[0];
myAlternatives.pop_back();
myAlternatives.push_back(current);
}
const SUMOReal costs = router.recomputeCosts(current->getEdgeVector(), veh, begin);
if (costs < 0) {
throw ProcessError("Route '" + getID() + "' (vehicle '" + veh->getID() + "') is not valid.");
}
current->setCosts(costs);
return;
}
// add the route when it's new
if (myNewRoute) {
myAlternatives.push_back(current);
}
// recompute the costs and (when a new route was added) scale the probabilities
const SUMOReal scale = SUMOReal(myAlternatives.size() - 1) / SUMOReal(myAlternatives.size());
for (std::vector<RORoute*>::iterator i = myAlternatives.begin(); i != myAlternatives.end(); i++) {
RORoute* alt = *i;
// recompute the costs for all routes
const SUMOReal newCosts = router.recomputeCosts(alt->getEdgeVector(), veh, begin);
if (newCosts < 0.) {
throw ProcessError("Route '" + current->getID() + "' (vehicle '" + veh->getID() + "') is not valid.");
}
assert(myAlternatives.size() != 0);
if (myNewRoute) {
if (*i == current) {
// set initial probability and costs
alt->setProbability((SUMOReal)(1.0 / (SUMOReal) myAlternatives.size()));
alt->setCosts(newCosts);
} else {
// rescale probs for all others
alt->setProbability(alt->getProbability() * scale);
}
}
ROCostCalculator::getCalculator().setCosts(alt, newCosts, *i == myAlternatives[myLastUsed]);
}
assert(myAlternatives.size() != 0);
ROCostCalculator::getCalculator().calculateProbabilities(veh, myAlternatives);
if (!ROCostCalculator::getCalculator().keepRoutes()) {
// remove with probability of 0 (not mentioned in Gawron)
for (std::vector<RORoute*>::iterator i = myAlternatives.begin(); i != myAlternatives.end();) {
if ((*i)->getProbability() == 0) {
delete *i;
i = myAlternatives.erase(i);
} else {
i++;
}
}
}
if (myAlternatives.size() > ROCostCalculator::getCalculator().getMaxRouteNumber()) {
// only keep the routes with highest probability
sort(myAlternatives.begin(), myAlternatives.end(), ComparatorProbability());
for (std::vector<RORoute*>::iterator i = myAlternatives.begin() + ROCostCalculator::getCalculator().getMaxRouteNumber(); i != myAlternatives.end(); i++) {
delete *i;
}
myAlternatives.erase(myAlternatives.begin() + ROCostCalculator::getCalculator().getMaxRouteNumber(), myAlternatives.end());
// rescale probabilities
SUMOReal newSum = 0;
for (std::vector<RORoute*>::iterator i = myAlternatives.begin(); i != myAlternatives.end(); i++) {
newSum += (*i)->getProbability();
}
assert(newSum > 0);
// @note newSum may be larger than 1 for numerical reasons
for (std::vector<RORoute*>::iterator i = myAlternatives.begin(); i != myAlternatives.end(); i++) {
(*i)->setProbability((*i)->getProbability() / newSum);
}
}
// find the route to use
SUMOReal chosen = RandHelper::rand();
int pos = 0;
for (std::vector<RORoute*>::iterator i = myAlternatives.begin(); i != myAlternatives.end() - 1; i++, pos++) {
chosen -= (*i)->getProbability();
if (chosen <= 0) {
myLastUsed = pos;
return;
}
}
myLastUsed = pos;
}
void
ROVehicle::computeRoute(const RORouterProvider& provider,
const bool removeLoops, MsgHandler* errorHandler) {
SUMOAbstractRouter<ROEdge, ROVehicle>& router = provider.getVehicleRouter();
std::string noRouteMsg = "The vehicle '" + getID() + "' has no valid route.";
RORouteDef* const routeDef = getRouteDefinition();
// check if the route definition is valid
if (routeDef == nullptr) {
errorHandler->inform(noRouteMsg);
myRoutingSuccess = false;
return;
}
RORoute* current = routeDef->buildCurrentRoute(router, getDepartureTime(), *this);
if (current == nullptr || current->size() == 0) {
delete current;
errorHandler->inform(noRouteMsg);
myRoutingSuccess = false;
return;
}
// check whether we have to evaluate the route for not containing loops
if (removeLoops) {
const ROEdge* requiredStart = (getParameter().departPosProcedure == DEPART_POS_GIVEN
|| getParameter().departLaneProcedure == DEPART_LANE_GIVEN ? current->getEdgeVector().front() : 0);
const ROEdge* requiredEnd = (getParameter().arrivalPosProcedure == ARRIVAL_POS_GIVEN
|| getParameter().arrivalLaneProcedure == ARRIVAL_LANE_GIVEN ? current->getEdgeVector().back() : 0);
current->recheckForLoops(getMandatoryEdges(requiredStart, requiredEnd));
// check whether the route is still valid
if (current->size() == 0) {
delete current;
errorHandler->inform(noRouteMsg + " (after removing loops)");
myRoutingSuccess = false;
return;
}
}
// add built route
routeDef->addAlternative(router, this, current, getDepartureTime());
myRoutingSuccess = true;
}