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Fix bugs and write data directly to file

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This commit is contained in:
Tim Schubert 2020-08-17 13:30:39 +02:00
parent f8804533cc
commit bf59e66526
3 changed files with 34 additions and 21 deletions
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33
examples/leo-circular-orbit-tracing-example.cc
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@ -1,5 +1,7 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#include <fstream>
#include "ns3/core-module.h" #include "ns3/core-module.h"
#include "ns3/mobility-module.h" #include "ns3/mobility-module.h"
#include "ns3/leo-module.h" #include "ns3/leo-module.h"
@ -8,32 +10,37 @@ using namespace ns3;
NS_LOG_COMPONENT_DEFINE ("LeoCircularOrbitTracingExample"); NS_LOG_COMPONENT_DEFINE ("LeoCircularOrbitTracingExample");
ofstream outfile ("leo-circular-orbit-tracing-example.csv");
void CourseChange (std::string context, Ptr<const MobilityModel> position) void CourseChange (std::string context, Ptr<const MobilityModel> position)
{ {
Vector pos = position->GetPosition (); Vector pos = position->GetPosition ();
Ptr<const Node> node = position->GetObject<Node> (); Ptr<const Node> node = position->GetObject<Node> ();
std::cout << Simulator::Now () << "," << node->GetId () << "," << pos.x << "," << pos.y << "," << pos.z << "," << position->GetVelocity ().GetLength() << std::endl; outfile << Simulator::Now () << "," << node->GetId () << "," << pos.x << "," << pos.y << "," << pos.z << "," << position->GetVelocity ().GetLength() << std::endl;
} }
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
NodeContainer c; for (double incl: { 70.0, 100.0 })
c.Create (600); {
NodeContainer c;
c.Create (600);
MobilityHelper mobility; MobilityHelper mobility;
mobility.SetPositionAllocator ("ns3::LeoCircularOrbitPostionAllocator", mobility.SetPositionAllocator ("ns3::LeoCircularOrbitPostionAllocator",
"NumOrbits", IntegerValue (6), "NumOrbits", IntegerValue (6),
"NumSatellites", IntegerValue (100)); "NumSatellites", IntegerValue (100));
mobility.SetMobilityModel ("ns3::LeoCircularOrbitMobilityModel", mobility.SetMobilityModel ("ns3::LeoCircularOrbitMobilityModel",
"Altitude", DoubleValue (1200.0), "Altitude", DoubleValue (1200.0),
"Inclination", DoubleValue (80.0), "Inclination", DoubleValue (incl),
"Precision", TimeValue (Minutes (1))); "Precision", TimeValue (Minutes (1)));
mobility.Install (c); mobility.Install (c);
}
Config::Connect ("/NodeList/*/$ns3::MobilityModel/CourseChange", Config::Connect ("/NodeList/*/$ns3::MobilityModel/CourseChange",
MakeCallback (&CourseChange)); MakeCallback (&CourseChange));
std::cout << "Time,Satellite,x,y,z,Speed" << std::endl; outfile << "Time,Satellite,x,y,z,Speed" << std::endl;
Simulator::Stop (Minutes (60.0)); Simulator::Stop (Minutes (60.0));
Simulator::Run (); Simulator::Run ();

16
model/leo-circular-orbit-mobility-model.cc
View file

@ -76,7 +76,8 @@ DotProduct (const Vector3D &l, const Vector3D &r)
double double
LeoCircularOrbitMobilityModel::GetSpeed () const LeoCircularOrbitMobilityModel::GetSpeed () const
{ {
return sqrt (LEO_EARTH_GM_KM_E10 / m_orbitHeight) * 1e5; // force non-retrograd movement
return sqrt (LEO_EARTH_GM_KM_E10 / m_orbitHeight) * 1e5;
} }
Vector Vector
@ -90,9 +91,14 @@ LeoCircularOrbitMobilityModel::DoGetVelocity () const
Vector3D Vector3D
LeoCircularOrbitMobilityModel::PlaneNorm () const LeoCircularOrbitMobilityModel::PlaneNorm () const
{ {
return Vector3D (sin (-m_inclination) * cos (m_latitude), int sign = 1;
sin (-m_inclination) * sin (m_latitude), if (m_inclination < M_PI/4)
cos (m_inclination)); {
sign = -1;
}
return Vector3D (sign * sin (-m_inclination) * cos (m_latitude),
sign * sin (-m_inclination) * sin (m_latitude),
sign * cos (m_inclination));
} }
double double
@ -173,7 +179,7 @@ void LeoCircularOrbitMobilityModel::SetAltitude (double h)
double LeoCircularOrbitMobilityModel::GetInclination () const double LeoCircularOrbitMobilityModel::GetInclination () const
{ {
return (m_inclination / M_PI) * 180.0; return (m_inclination / (M_PI)) * 180.0;
} }
void LeoCircularOrbitMobilityModel::SetInclination (double incl) void LeoCircularOrbitMobilityModel::SetInclination (double incl)

6
utils/plot-satellites.gnuplot
View file

@ -7,13 +7,13 @@ unset xtics
unset ytics unset ytics
unset ztics unset ztics
unset border unset border
set hidden3d
unset key unset key
set view equal xyz set view equal xyz
n=600 # number of nodes per time slot
n=1200
do for [j=0:100] { do for [j=0:100] {
set title 'time '.j set title 'time '.j
splot 'somefile' using 3:4:5:2 every ::(j*n)::((j+1)*n) splot 'leo-circular-orbit-tracing-example.csv' using 3:4:5:2 every ::(j*n)::((j+1)*n)
} }