1 /****************************************************************************/
2 // Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.org/sumo
3 // Copyright (C) 2001-2019 German Aerospace Center (DLR) and others.
4 // This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v2.0
6 // which accompanies this distribution, and is available at
7 // http://www.eclipse.org/legal/epl-v20.html
8 // SPDX-License-Identifier: EPL-2.0
9 /****************************************************************************/
10 /// @file    CarEdge.h
11 /// @author  Michael Behrisch
12 /// @date    Mon, 03 March 2014
13 /// @version $Id$
14 ///
15 // The CarEdge is a special intermodal edge representing the SUMO network edge
16 /****************************************************************************/
17 #ifndef CarEdge_h
18 #define CarEdge_h
19 
20 
21 // ===========================================================================
22 // included modules
23 // ===========================================================================
24 #include <config.h>
25 
26 #ifdef HAVE_FOX
27 #include <fx.h>
28 #endif
29 #include "IntermodalEdge.h"
30 
31 
32 // ===========================================================================
33 // class definitions
34 // ===========================================================================
35 /// @brief the car edge type that is given to the internal router (SUMOAbstractRouter)
36 template<class E, class L, class N, class V>
37 class CarEdge : public IntermodalEdge<E, L, N, V> {
38 private:
39     typedef IntermodalEdge<E, L, N, V> _IntermodalEdge;
40 
41 public:
42     CarEdge(int numericalID, const E* edge, const double pos = -1.) :
43         _IntermodalEdge(edge->getID() + "_car" + toString(pos), numericalID, edge, "!car"),
44         myStartPos(pos >= 0 ? pos : 0.) { }
45 
includeInRoute(bool)46     bool includeInRoute(bool /* allEdges */) const {
47         return true;
48     }
49 
50     const std::vector<_IntermodalEdge*>& getSuccessors(SUMOVehicleClass vClass = SVC_IGNORING) const {
51         if (vClass == SVC_IGNORING) {
52             return this->myFollowingEdges;
53         }
54 #ifdef HAVE_FOX
55         FXMutexLock locker(myLock);
56 #endif
57         typename std::map<SUMOVehicleClass, std::vector<_IntermodalEdge*> >::const_iterator i = myClassesSuccessorMap.find(vClass);
58         if (i != myClassesSuccessorMap.end()) {
59             // can use cached value
60             return i->second;
61         } else {
62             // this vClass is requested for the first time. rebuild all successors
63             const std::set<const E*> classedCarFollowers = std::set<const E*>(this->getEdge()->getSuccessors(vClass).begin(), this->getEdge()->getSuccessors(vClass).end());
64             for (_IntermodalEdge* const e : this->myFollowingEdges) {
65                 if (!e->includeInRoute(false) || e->getEdge() == this->getEdge() || classedCarFollowers.count(e->getEdge()) > 0) {
66                     myClassesSuccessorMap[vClass].push_back(e);
67                 }
68             }
69             return myClassesSuccessorMap[vClass];
70         }
71     }
72 
73     virtual const std::vector<std::pair<const _IntermodalEdge*, const _IntermodalEdge*> >& getViaSuccessors(SUMOVehicleClass vClass = SVC_IGNORING) const {
74         if (vClass == SVC_IGNORING) {
75             return this->myFollowingViaEdges;
76         }
77 #ifdef HAVE_FOX
78         FXMutexLock locker(myLock);
79 #endif
80         typename std::map<SUMOVehicleClass, std::vector<std::pair<const _IntermodalEdge*, const _IntermodalEdge*> > >::const_iterator i = myClassesViaSuccessorMap.find(vClass);
81         if (i != myClassesViaSuccessorMap.end()) {
82             // can use cached value
83             return i->second;
84         } else {
85             // this vClass is requested for the first time. rebuild all successors
86             const std::set<std::pair<const E*, const E*> > classedCarFollowers = std::set<std::pair<const E*, const E*> >(this->getEdge()->getViaSuccessors(vClass).begin(), this->getEdge()->getViaSuccessors(vClass).end());
87             for (const std::pair<const _IntermodalEdge*, const _IntermodalEdge*>& e : this->myFollowingViaEdges) {
88                 const auto viaPair = std::make_pair(e.first->getEdge(), e.second == nullptr ? nullptr : e.second->getEdge());
89                 if (!e.first->includeInRoute(false) || e.first->getEdge() == this->getEdge() || classedCarFollowers.count(viaPair) > 0) {
90                     myClassesViaSuccessorMap[vClass].push_back(e);
91                 }
92             }
93             return myClassesViaSuccessorMap[vClass];
94         }
95     }
96 
prohibits(const IntermodalTrip<E,N,V> * const trip)97     bool prohibits(const IntermodalTrip<E, N, V>* const trip) const {
98         return trip->vehicle == 0 || this->getEdge()->prohibits(trip->vehicle);
99     }
100 
getTravelTime(const IntermodalTrip<E,N,V> * const trip,double time)101     double getTravelTime(const IntermodalTrip<E, N, V>* const trip, double time) const {
102         const double travelTime = E::getTravelTimeStatic(this->getEdge(), trip->vehicle, time);
103         double distTravelled = this->getLength();
104         // checking arrivalPos first to have it correct for identical depart and arrival edge
105         if (this->getEdge() == trip->to) {
106             distTravelled = trip->arrivalPos - myStartPos;
107         }
108         if (this->getEdge() == trip->from) {
109             distTravelled -= trip->departPos - myStartPos;
110         }
111         return travelTime * distTravelled / this->getEdge()->getLength();
112     }
113 
getStartPos()114     double getStartPos() const {
115         return myStartPos;
116     }
117 
getEndPos()118     double getEndPos() const {
119         return myStartPos + this->getLength();
120     }
121 
122 private:
123     /// @brief the starting position for split edges
124     const double myStartPos;
125 
126     /// @brief The successors available for a given vClass
127     mutable std::map<SUMOVehicleClass, std::vector<_IntermodalEdge*> > myClassesSuccessorMap;
128 
129     /// @brief The successors available for a given vClass
130     mutable std::map<SUMOVehicleClass, std::vector<std::pair<const _IntermodalEdge*, const _IntermodalEdge*> > > myClassesViaSuccessorMap;
131 
132 #ifdef HAVE_FOX
133     /// The mutex used to avoid concurrent updates of myClassesSuccessorMap
134     mutable FXMutex myLock;
135 #endif
136 };
137 
138 
139 #endif
140 
141 /****************************************************************************/
142