Eclipse SUMO - Simulation of Urban MObility
MSInternalJunction.cpp
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1 /****************************************************************************/
2 // Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.org/sumo
3 // Copyright (C) 2001-2022 German Aerospace Center (DLR) and others.
4 // This program and the accompanying materials are made available under the
5 // terms of the Eclipse Public License 2.0 which is available at
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7 // This Source Code may also be made available under the following Secondary
8 // Licenses when the conditions for such availability set forth in the Eclipse
9 // Public License 2.0 are satisfied: GNU General Public License, version 2
10 // or later which is available at
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12 // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
13 /****************************************************************************/
21 // junction.
22 /****************************************************************************/
23 #include <config.h>
24 
25 #include <algorithm>
26 #include <cassert>
27 #include <cmath>
28 #include "MSRightOfWayJunction.h"
29 #include "MSLane.h"
30 #include "MSLink.h"
31 #include "MSEdge.h"
32 #include "MSJunctionLogic.h"
33 #include "MSInternalJunction.h"
34 
35 
36 // ===========================================================================
37 // method definitions
38 // ===========================================================================
40  SumoXMLNodeType type,
41  const Position& position,
42  const PositionVector& shape,
43  std::vector<MSLane*> incoming,
44  std::vector<MSLane*> internal)
45  : MSLogicJunction(id, type, position, shape, "", incoming, internal) {}
46 
47 
48 
50 
51 
52 void
54  if (myIncomingLanes.size() == 0) {
55  throw ProcessError("Internal junction " + getID() + " has no incoming lanes");
56  }
57  // the first lane in the list of incoming lanes is special. It defines the
58  // link that needs to do all the checking for this internal junction
59  const MSLane* specialLane = myIncomingLanes[0];
60  assert(specialLane->getLinkCont().size() == 1);
61  MSLink* thisLink = specialLane->getLinkCont()[0];
62  const MSRightOfWayJunction* parent = dynamic_cast<const MSRightOfWayJunction*>(specialLane->getEdge().getToJunction());
63  if (parent == nullptr) {
64  // parent has type traffic_light_unregulated
65  return;
66  }
67  const int ownLinkIndex = specialLane->getIncomingLanes()[0].viaLink->getIndex();
68  const MSLogicJunction::LinkBits& response = parent->getLogic()->getResponseFor(ownLinkIndex);
69  // inform links where they have to report approaching vehicles to
70  //std::cout << " special=" << specialLane->getID() << " incoming=" << toString(myIncomingLanes) << " internal=" << toString(myInternalLanes) << "\n";
71  for (MSLane* const lane : myInternalLanes) {
72  for (MSLink* const link : lane->getLinkCont()) {
73  if (link->getViaLane() != nullptr) {
74  const int foeIndex = lane->getIncomingLanes()[0].viaLink->getIndex();
75  //std::cout << " response=" << response << " index=" << ownLinkIndex << " foeIndex=" << foeIndex << " ibct=" << indirectBicycleTurn(specialLane, thisLink, *i, *q) << "\n";
76  if (response.test(foeIndex) || indirectBicycleTurn(specialLane, thisLink, lane, link)) {
77  // only respect vehicles before internal junctions if they
78  // have priority (see the analogous foeLinks.test() when
79  // initializing myLinkFoeInternalLanes in MSRightOfWayJunction
80  // Indirect left turns for bicycles are a special case
81  // because they both intersect on their second part with the first part of the other one
82  // and only one of the has priority
83  myInternalLaneFoes.push_back(lane);
84  }
85  myInternalLaneFoes.push_back(link->getViaLane());
86  } else {
87  myInternalLaneFoes.push_back(lane);
88  }
89  //std::cout << " i=" << (*i)->getID() << " qLane=" << (*q)->getLane()->getID() << " qVia=" << Named::getIDSecure((*q)->getViaLane()) << " foes=" << toString(myInternalLaneFoes) << "\n";
90  }
91 
92  }
93  for (std::vector<MSLane*>::const_iterator i = myIncomingLanes.begin() + 1; i != myIncomingLanes.end(); ++i) {
94  for (MSLink* const link : (*i)->getLinkCont()) {
95  MSLane* via = link->getViaLane();
96  if (std::find(myInternalLanes.begin(), myInternalLanes.end(), via) == myInternalLanes.end()) {
97  continue;
98  }
99  myInternalLinkFoes.push_back(link);
100  }
101  }
102  // thisLinks is itself an exitLink of the preceding internal lane
103  thisLink->setRequestInformation(ownLinkIndex, true, false, myInternalLinkFoes, myInternalLaneFoes, thisLink->getViaLane()->getLogicalPredecessorLane());
104  assert(thisLink->getViaLane()->getLinkCont().size() == 1);
105  MSLink* exitLink = thisLink->getViaLane()->getLinkCont()[0];
106  exitLink->setRequestInformation(ownLinkIndex, false, false, std::vector<MSLink*>(),
107  myInternalLaneFoes, thisLink->getViaLane());
108  for (const auto& ili : exitLink->getLane()->getIncomingLanes()) {
109  if (ili.lane->getEdge().isWalkingArea()) {
110  exitLink->addWalkingAreaFoeExit(ili.lane);
111  break;
112  }
113  }
114  for (MSLink* const link : myInternalLinkFoes) {
115  thisLink->addBlockedLink(link);
116  link->addBlockedLink(thisLink);
117  }
118 }
119 
120 
121 bool
122 MSInternalJunction::indirectBicycleTurn(const MSLane* specialLane, const MSLink* thisLink, const MSLane* foeFirstPart, const MSLink* foeLink) const {
123  if (specialLane->getPermissions() == SVC_BICYCLE && foeFirstPart->getPermissions() == SVC_BICYCLE
124  && thisLink->getDirection() == LinkDirection::LEFT && foeLink->getDirection() == LinkDirection::LEFT
125  && thisLink->getViaLane() != nullptr
126  && thisLink->getViaLane()->getShape().intersects(foeFirstPart->getShape())) {
127  return true;
128  } else {
129  return false;
130  }
131 }
132 
133 
134 /****************************************************************************/
@ SVC_BICYCLE
vehicle is a bicycle
@ LEFT
The link is a (hard) left direction.
SumoXMLNodeType
Numbers representing special SUMO-XML-attribute values for representing node- (junction-) types used ...
const MSJunction * getToJunction() const
Definition: MSEdge.h:401
void postloadInit()
initialises the junction after the whole net has been loaded
virtual ~MSInternalJunction()
Destructor.
bool indirectBicycleTurn(const MSLane *specialLane, const MSLink *thisLink, const MSLane *foeFirstPart, const MSLink *foeLink) const
std::vector< MSLane * > myInternalLaneFoes
std::vector< MSLink * > myInternalLinkFoes
MSInternalJunction(const std::string &id, SumoXMLNodeType type, const Position &position, const PositionVector &shape, std::vector< MSLane * > incoming, std::vector< MSLane * > internal)
Constructor.
virtual const MSLogicJunction::LinkBits & getResponseFor(int linkIndex) const
Returns the response for the given link.
Representation of a lane in the micro simulation.
Definition: MSLane.h:82
const std::vector< MSLink * > & getLinkCont() const
returns the container with all links !!!
Definition: MSLane.h:641
SVCPermissions getPermissions() const
Returns the vehicle class permissions for this lane.
Definition: MSLane.h:549
const std::vector< IncomingLaneInfo > & getIncomingLanes() const
Definition: MSLane.h:837
MSLane * getLogicalPredecessorLane() const
get the most likely precedecessor lane (sorted using by_connections_to_sorter). The result is cached ...
Definition: MSLane.cpp:2637
MSEdge & getEdge() const
Returns the lane's edge.
Definition: MSLane.h:674
const PositionVector & getShape() const
Returns this lane's shape.
Definition: MSLane.h:478
std::vector< MSLane * > myInternalLanes
list of internal lanes
std::bitset< SUMO_MAX_CONNECTIONS > LinkBits
Container for link response and foes.
std::vector< MSLane * > myIncomingLanes
list of incoming lanes
A junction with right-of-way - rules.
const MSJunctionLogic * getLogic() const
const std::string & getID() const
Returns the id.
Definition: Named.h:74
A point in 2D or 3D with translation and scaling methods.
Definition: Position.h:37
A list of positions.
bool intersects(const Position &p1, const Position &p2) const
Returns the information whether this list of points interesects the given line.