SUMO - Simulation of Urban MObility
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
TraCIServerAPI_InductionLoop.cpp
Go to the documentation of this file.
1 /****************************************************************************/
10 // APIs for getting/setting induction loop values via TraCI
11 /****************************************************************************/
12 // SUMO, Simulation of Urban MObility; see http://sumo-sim.org/
13 // Copyright (C) 2009-2014 DLR (http://www.dlr.de/) and contributors
14 /****************************************************************************/
15 //
16 // This file is part of SUMO.
17 // SUMO is free software: you can redistribute it and/or modify
18 // it under the terms of the GNU General Public License as published by
19 // the Free Software Foundation, either version 3 of the License, or
20 // (at your option) any later version.
21 //
22 /****************************************************************************/
23 
24 
25 // ===========================================================================
26 // included modules
27 // ===========================================================================
28 #ifdef _MSC_VER
29 #include <windows_config.h>
30 #else
31 #include <config.h>
32 #endif
33 
34 #ifndef NO_TRACI
35 
36 #include "TraCIConstants.h"
37 #include <microsim/MSNet.h>
41 
42 #ifdef CHECK_MEMORY_LEAKS
43 #include <foreign/nvwa/debug_new.h>
44 #endif // CHECK_MEMORY_LEAKS
45 
46 
47 // ===========================================================================
48 // method definitions
49 // ===========================================================================
50 bool
52  tcpip::Storage& outputStorage) {
53  // variable & id
54  int variable = inputStorage.readUnsignedByte();
55  std::string id = inputStorage.readString();
56  // check variable
57  if (variable != ID_LIST && variable != LAST_STEP_VEHICLE_NUMBER && variable != LAST_STEP_MEAN_SPEED
58  && variable != LAST_STEP_VEHICLE_ID_LIST && variable != LAST_STEP_OCCUPANCY
59  && variable != LAST_STEP_LENGTH && variable != LAST_STEP_TIME_SINCE_DETECTION
60  && variable != LAST_STEP_VEHICLE_DATA && variable != ID_COUNT
61  && variable != VAR_POSITION && variable != VAR_LANE_ID) {
62  return server.writeErrorStatusCmd(CMD_GET_INDUCTIONLOOP_VARIABLE, "Get Induction Loop Variable: unsupported variable specified", outputStorage);
63  }
64  // begin response building
65  tcpip::Storage tempMsg;
66  // response-code, variableID, objectID
68  tempMsg.writeUnsignedByte(variable);
69  tempMsg.writeString(id);
70  // process request
71  if (variable == ID_LIST) {
72  std::vector<std::string> ids;
75  tempMsg.writeStringList(ids);
76  } else if (variable == ID_COUNT) {
77  std::vector<std::string> ids;
80  tempMsg.writeInt((int) ids.size());
81  } else {
83  if (il == 0) {
84  return server.writeErrorStatusCmd(CMD_GET_INDUCTIONLOOP_VARIABLE, "Induction loop '" + id + "' is not known", outputStorage);
85  }
86  switch (variable) {
87  case ID_LIST:
88  break;
91  tempMsg.writeInt((int)(il->getCurrentPassedNumber()));
92  break;
95  tempMsg.writeDouble(il->getCurrentSpeed());
96  break;
99  std::vector<std::string> ids = il->getCurrentVehicleIDs();
100  tempMsg.writeStringList(ids);
101  }
102  break;
103  case LAST_STEP_OCCUPANCY:
105  tempMsg.writeDouble(il->getCurrentOccupancy());
106  break;
107  case LAST_STEP_LENGTH:
109  tempMsg.writeDouble(il->getCurrentLength());
110  break;
114  break;
115  case LAST_STEP_VEHICLE_DATA: {
116  std::vector<MSInductLoop::VehicleData> vd = il->collectVehiclesOnDet(MSNet::getInstance()->getCurrentTimeStep() - DELTA_T);
118  tcpip::Storage tempContent;
119  unsigned int cnt = 0;
120  tempContent.writeUnsignedByte(TYPE_INTEGER);
121  tempContent.writeInt((int) vd.size());
122  ++cnt;
123  for (unsigned int i = 0; i < vd.size(); ++i) {
124  MSInductLoop::VehicleData& svd = vd[i];
125  tempContent.writeUnsignedByte(TYPE_STRING);
126  tempContent.writeString(svd.idM);
127  ++cnt;
128  tempContent.writeUnsignedByte(TYPE_DOUBLE);
129  tempContent.writeDouble(svd.lengthM);
130  ++cnt;
131  tempContent.writeUnsignedByte(TYPE_DOUBLE);
132  tempContent.writeDouble(svd.entryTimeM);
133  ++cnt;
134  tempContent.writeUnsignedByte(TYPE_DOUBLE);
135  tempContent.writeDouble(svd.leaveTimeM);
136  ++cnt;
137  tempContent.writeUnsignedByte(TYPE_STRING);
138  tempContent.writeString(svd.typeIDM);
139  ++cnt;
140  }
141 
142  tempMsg.writeInt((int) cnt);
143  tempMsg.writeStorage(tempContent);
144  break;
145  }
146  case VAR_POSITION:
148  tempMsg.writeDouble(il->getPosition());
149  break;
150  case VAR_LANE_ID:
152  tempMsg.writeString(il->getLane()->getID());
153  break;
154  default:
155  break;
156  }
157  }
158  server.writeStatusCmd(CMD_GET_INDUCTIONLOOP_VARIABLE, RTYPE_OK, "", outputStorage);
159  server.writeResponseWithLength(outputStorage, tempMsg);
160  return true;
161 }
162 
163 
164 bool
167  if (il == 0) {
168  return false;
169  }
170  p = il->getLane()->getShape().positionAtOffset(il->getPosition());
171  return true;
172 }
173 
174 
175 NamedRTree*
177  NamedRTree* t = new NamedRTree();
178  const std::map<std::string, MSDetectorFileOutput*>& dets = MSNet::getInstance()->getDetectorControl().getTypedDetectors(SUMO_TAG_INDUCTION_LOOP).getMyMap();
179  for (std::map<std::string, MSDetectorFileOutput*>::const_iterator i = dets.begin(); i != dets.end(); ++i) {
180  MSInductLoop* il = static_cast<MSInductLoop*>((*i).second);
182  const float cmin[2] = {(float) p.x(), (float) p.y()};
183  const float cmax[2] = {(float) p.x(), (float) p.y()};
184  t->Insert(cmin, cmax, il);
185  }
186  return t;
187 }
188 
189 #endif
190 
191 
192 /****************************************************************************/
193