A Discrete-Event Network Simulator
API
bonnmotion-ns2-example.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright 2012 Eric Gamess
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  */
19 
20 /*
21  * Example program using a ns-2-formatted mobility trace generated
22  * by the BonnMotion mobility framework.
23  *
24  * With the provided tracefile (bonnmotion.ns_movements), the movements of
25  * one node are simulated for 1000 seconds. There are a few other files
26  * that provide metadata about the mobility:
27  * - src/mobility/examples/bonnmotion.ns_params
28  * - src/mobility/examples/bonnmotion.params
29  *
30  * These files are documented in the BonnMotion documentation.
31  *
32  * It is important to remember that the trace file dictates how many nodes
33  * (in this case, one) and how long (in this case, 1000 seconds) that the
34  * ns-3 program should use. If you want to change the mobility pattern,
35  * number of nodes, or duration, you need to use BonnMotion or another
36  * tool to generate a new trace.
37  *
38  * Finally, note that you can visualize this program using the pyviz
39  * visualizer:
40  * ./waf --run bonnmotion-ns2-example --vis
41  */
42 
43 #include "ns3/core-module.h"
44 #include "ns3/mobility-module.h"
45 
46 using namespace ns3;
47 
48 void showPosition (Ptr<Node> node, double deltaTime)
49 {
50  uint32_t nodeId = node->GetId ();
51  Ptr<MobilityModel> mobModel = node->GetObject<MobilityModel> ();
52  Vector3D pos = mobModel->GetPosition ();
53  Vector3D speed = mobModel->GetVelocity ();
54  std::cout << "At " << Simulator::Now ().GetSeconds () << " node " << nodeId
55  << ": Position(" << pos.x << ", " << pos.y << ", " << pos.z
56  << "); Speed(" << speed.x << ", " << speed.y << ", " << speed.z
57  << ")" << std::endl;
58 
59  Simulator::Schedule (Seconds (deltaTime), &showPosition, node, deltaTime);
60 }
61 
62 int main (int argc, char *argv[])
63 {
64  std::cout.precision (2);
65  std::cout.setf (std::ios::fixed);
66 
67  double deltaTime = 100;
68  std::string traceFile = "src/mobility/examples/bonnmotion.ns_movements";
69 
71  cmd.AddValue ("traceFile", "Ns2 movement trace file", traceFile);
72  cmd.AddValue ("deltaTime", "time interval (s) between updates (default 100)", deltaTime);
73  cmd.Parse (argc, argv);
74 
75  Ptr<Node> n0 = CreateObject<Node> ();
76 
77  Ns2MobilityHelper ns2 = Ns2MobilityHelper (traceFile);
78  ns2.Install ();
79 
80  Simulator::Schedule (Seconds (0.0), &showPosition, n0, deltaTime);
81 
82  Simulator::Stop (Seconds (1000.0));
83  Simulator::Run ();
85  return 0;
86 }
87 
88 
double x
x coordinate of vector
Definition: vector.h:59
uint32_t GetId(void) const
Definition: node.cc:107
double GetSeconds(void) const
Get an approximation of the time stored in this instance in the indicated unit.
Definition: nstime.h:361
static void Run(void)
Run the simulation.
Definition: simulator.cc:170
cmd
Definition: second.py:35
void showPosition(Ptr< Node > node, double deltaTime)
a 3d vector
Definition: vector.h:45
Keep track of the current position and velocity of an object.
static EventId Schedule(Time const &delay, MEM mem_ptr, OBJ obj)
Schedule an event to expire after delay.
Definition: simulator.h:1390
Helper class which can read ns-2 movement files and configure nodes mobility.
Parse command-line arguments.
Definition: command-line.h:212
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:134
Ptr< T > GetObject(void) const
Get a pointer to the requested aggregated Object.
Definition: object.h:464
Every class exported by the ns3 library is enclosed in the ns3 namespace.
double y
y coordinate of vector
Definition: vector.h:60
static Time Now(void)
Return the current simulation virtual time.
Definition: simulator.cc:193
Vector GetPosition(void) const
static void Stop(void)
Tell the Simulator the calling event should be the last one executed.
Definition: simulator.cc:178
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1070
double z
z coordinate of vector
Definition: vector.h:61
Vector GetVelocity(void) const