A Discrete-Event Network Simulator
API
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Properties Friends Macros Groups Pages
mobility-model.cc
Go to the documentation of this file.
1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2006,2007 INRIA
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  * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
19  */
20 
21 #include <math.h>
22 
23 #include "mobility-model.h"
24 #include "ns3/trace-source-accessor.h"
25 
26 namespace ns3 {
27 
28 NS_OBJECT_ENSURE_REGISTERED (MobilityModel);
29 
30 TypeId
31 MobilityModel::GetTypeId (void)
32 {
33  static TypeId tid = TypeId ("ns3::MobilityModel")
34  .SetParent<Object> ()
35  .AddAttribute ("Position", "The current position of the mobility model.",
36  TypeId::ATTR_SET | TypeId::ATTR_GET,
37  VectorValue (Vector (0.0, 0.0, 0.0)),
38  MakeVectorAccessor (&MobilityModel::SetPosition,
39  &MobilityModel::GetPosition),
40  MakeVectorChecker ())
41  .AddAttribute ("Velocity", "The current velocity of the mobility model.",
42  TypeId::ATTR_GET,
43  VectorValue (Vector (0.0, 0.0, 0.0)), // ignored initial value.
44  MakeVectorAccessor (&MobilityModel::GetVelocity),
45  MakeVectorChecker ())
46  .AddTraceSource ("CourseChange",
47  "The value of the position and/or velocity vector changed",
48  MakeTraceSourceAccessor (&MobilityModel::m_courseChangeTrace))
49  ;
50  return tid;
51 }
52 
53 MobilityModel::MobilityModel ()
54 {
55 }
56 
57 MobilityModel::~MobilityModel ()
58 {
59 }
60 
61 Vector
62 MobilityModel::GetPosition (void) const
63 {
64  return DoGetPosition ();
65 }
66 Vector
67 MobilityModel::GetVelocity (void) const
68 {
69  return DoGetVelocity ();
70 }
71 
72 void
73 MobilityModel::SetPosition (const Vector &position)
74 {
75  DoSetPosition (position);
76 }
77 
78 double
79 MobilityModel::GetDistanceFrom (Ptr<const MobilityModel> other) const
80 {
81  Vector oPosition = other->DoGetPosition ();
82  Vector position = DoGetPosition ();
83  return CalculateDistance (position, oPosition);
84 }
85 
86 double
87 MobilityModel::GetRelativeSpeed (Ptr<const MobilityModel> other) const
88 {
89  double x = GetVelocity().x - other->GetVelocity().x;
90  double y = GetVelocity().y - other->GetVelocity().y;
91  double z = GetVelocity().z - other->GetVelocity().z;
92  return sqrt( (x*x) + (y*y) + (z*z) );
93 }
94 
95 void
96 MobilityModel::NotifyCourseChange (void) const
97 {
98  m_courseChangeTrace (this);
99 }
100 
101 int64_t
102 MobilityModel::AssignStreams (int64_t start)
103 {
104  return DoAssignStreams (start);
105 }
106 
107 // Default implementation does nothing
108 int64_t
109 MobilityModel::DoAssignStreams (int64_t start)
110 {
111  return 0;
112 }
113 
114 
115 } // namespace ns3