Main Page | Namespace List | Class Hierarchy | Alphabetical List | Class List | File List | Namespace Members | Class Members | File Members | Search for 

orsa_universe.cc File Reference

#include "orsa_universe.h"
#include "orsa_file.h"
#include "orsa_error.h"
#include <iostream>
#include <string>
#include <limits>
#include <algorithm>

Include dependency graph for orsa_universe.cc:

Go to the source code of this file.

Namespaces

namespace  orsa

Functions

double FromUnits (const double x, const time_unit u, const int power)
double FromUnits (const double x, const length_unit u, const int power)
double FromUnits (const double x, const mass_unit u, const int power)
Frame StartFrame (const vector< BodyWithEpoch > &f, vector< JPL_planets > &jf, const Interaction *itr, const Integrator *itg, const UniverseTypeAwareTime &t)
 A good frame to start an integration with.

Variables

Universe * universe = 0
 The active universe.

Function Documentation

double FromUnits (  const double  x,
const mass_unit  u,
const int  power
) 
 

Definition at line 137 of file orsa_universe.cc.

00137 { return orsa::units->FromUnits(x,u,power); };

double FromUnits (  const double  x,
const length_unit  u,
const int  power
) 
 

Definition at line 136 of file orsa_universe.cc.

00136 { return orsa::units->FromUnits(x,u,power); };

double FromUnits (  const double  x,
const time_unit  u,
const int  power
) 
 

Definition at line 135 of file orsa_universe.cc.

00135 { return orsa::units->FromUnits(x,u,power); };

Frame StartFrame (  const vector< BodyWithEpoch > &  f,
vector< JPL_planets > &  jf,
const Interaction *  itr,
const Integrator *  itg,
const UniverseTypeAwareTime &  t
) 
 

A good frame to start an integration with.

Definition at line 584 of file orsa_universe.cc.

References Evolution::clear(), orsa::FromUnits(), UniverseTypeAwareTime::GetDate(), Universe::GetUniverseType(), Evolution::Integrate(), ORSA_WARNING, Evolution::push_back(), orsa::Real, orsa::SECOND, UniverseTypeAwareTime::SetDate(), Evolution::SetIntegrator(), Evolution::SetIntegratorTimeStep(), Evolution::SetInteraction(), Evolution::SetSamplePeriod(), UniverseTypeAwareTime::SetTime(), orsa::Simulated, Evolution::size(), Frame::size(), UniverseTypeAwareTime::Time(), and orsa::universe.

00584                                                                                                                                                                 {
00585   // Frame StartFrame(const vector<BodyWithEpoch> & f, vector<JPL_planets> & jf, InteractionType interaction_type, IntegratorType integrator_type, const UniverseTypeAwareTime & t) {
00586     
00587     // const double original_timestep = itg->timestep;
00588     const UniverseTypeAwareTimeStep original_timestep = itg->timestep;
00589     
00590     Frame frame_start;
00591     
00592     switch (universe->GetUniverseType()) {
00593     case Real: { 
00594       frame_start.SetDate(t.GetDate());
00595       Frame          running_frame;
00596       Evolution      running_evolution;
00597       // running_evolution.interaction = itr->clone();
00598       // running_evolution.integrator  = itg->clone();
00599       running_evolution.SetIntegrator(itg);
00600       running_evolution.SetInteraction(itr);
00601       
00602       // put the JPL bodies into the frame_start
00603       /* 
00604          if (jf.size()) {
00605          Date ddf = t.GetDate();
00606          unsigned int k;
00607          for (k=0;k<jf.size();++k) {
00608          jf[k].SetEpoch(ddf);
00609          Body b(jf[k].name(),
00610          jf[k].mass(),
00611          jf[k].radius(),
00612          jf[k].position(),
00613          jf[k].velocity());
00614          frame_start.push_back(b);
00615          }
00616          }
00617       */
00618       //
00619       if (jf.size()) {
00620         unsigned int k;
00621         for (k=0;k<jf.size();++k) {
00622           frame_start.push_back(JPLBody(jf[k],t.GetDate()));
00623         }
00624       }
00625       
00626       if (f.size()) {
00627         
00628         Frame last_frame;
00629         unsigned int base_bodies, l;
00630         
00631         unsigned int j=0;
00632         while (j < f.size()) {
00633           
00634           running_frame.clear();
00635           // running_frame.SetDate(f[j].epoch.GetDate());
00636           running_frame.SetDate(f[j].GetEpoch().GetDate());
00637           
00638           running_frame.push_back(f[j]);
00639           ++j;
00640           
00641           // while ((j<f.size()) && (f[j].epoch.GetDate() == running_frame.GetDate())) {
00642           while ((j<f.size()) && (f[j].Epoch().GetDate() == running_frame.GetDate())) {
00643             running_frame.push_back(f[j]);
00644             ++j;
00645           }
00646           
00647           base_bodies = running_frame.size();
00648           
00649           // JPL 
00650           /* 
00651              Date ddt = running_frame.GetDate();
00652              unsigned int k;
00653              for (k=0;k<jf.size();++k) {
00654              jf[k].SetEpoch(ddt);
00655              Body b(jf[k].name(),
00656              jf[k].mass(),
00657              jf[k].radius(),
00658              jf[k].position(),
00659              jf[k].velocity());
00660              running_frame.push_back(b);
00661              }
00662           */
00663           {
00664             unsigned int k;
00665             for (k=0;k<jf.size();++k) {
00666               running_frame.push_back(JPLBody(jf[k],running_frame.GetDate()));
00667             }
00668           }
00669           
00670           running_evolution.clear();
00671           running_evolution.push_back(running_frame);
00672           // running_evolution.sample_period = fabs(running_frame.GetTime() - frame_start.GetTime());
00673           running_evolution.SetSamplePeriod((running_frame - frame_start).absolute());
00674           running_evolution.SetIntegratorTimeStep(original_timestep);
00675           running_evolution.Integrate(t);
00676           
00677           last_frame = running_evolution[running_evolution.size()-1];
00678           if (fabs(last_frame.Time()-frame_start.Time()) > FromUnits(1.0e-3,SECOND)) {
00679             /* 
00680                fprintf(stderr,"!!! last_frame.Time() != frame_start.Time() --->> %30.20f != %30.20f\n",last_frame.Time(),frame_start.Time());
00681                cerr << "|dT| = " << FromUnits(fabs(last_frame.Time()-frame_start.Time()),SECOND,-1) << " seconds" << endl;
00682                print(last_frame);
00683             */
00684             ORSA_WARNING(
00685                     "last_frame.Time() != frame_start.Time() --->> %30.20f != %30.20f\n"
00686                     "|dT| = %g seconds\n",
00687                     last_frame.Time(),frame_start.Time(),FromUnits(fabs(last_frame.Time()-frame_start.Time()),SECOND,-1));
00688             ORSA_WARNING("  objects in frame: ");
00689             unsigned int k;
00690             for (k=0;k<last_frame.size();++k) {
00691               ORSA_WARNING("    %s", last_frame[k].name().c_str());
00692             }
00693           }
00694           
00695           for (l=0;l<base_bodies;++l) {
00696             frame_start.push_back(last_frame[l]);
00697           }
00698         }
00699       }
00700       break;
00701     }
00702     case Simulated: {
00703       frame_start.SetTime(0.0);
00704       unsigned int k;  
00705       for (k=0;k<f.size();++k) {
00706         frame_start.push_back(f[k]);
00707       }
00708       break;
00709     }
00710     }
00711     
00712     return frame_start;
00713   }

Here is the call graph for this function:

Variable Documentation

Universe * universe = 0
 

The active universe.

Definition at line 42 of file orsa_universe.cc.

Referenced by UniverseTypeAwareTimeStep::absolute(), Newton::Acceleration(), orsa::Compute(), orsa::Compute_Gauss(), Sky::Compute_J2000(), orsa::Compute_TestMethod(), Frame::ForceJPLEphemerisData(), UniverseTypeAwareTimeStep::GetDouble(), JPLFile::GetEph(), UniverseTypeAwareTime::GetTime(), Evolution::Integrate(), UniverseTypeAwareTimeStep::IsZero(), JPLPlanetsNewton::JPLPlanetsNewton(), LocationFile::ObsPos(), UniverseTypeAwareTimeStep::operator+(), UniverseTypeAwareTime::operator+(), UniverseTypeAwareTime::operator+=(), UniverseTypeAwareTimeStep::operator-(), UniverseTypeAwareTime::operator-(), UniverseTypeAwareTime::operator-=(), UniverseTypeAwareTimeStep::operator<(), UniverseTypeAwareTime::operator<(), UniverseTypeAwareTime::operator<=(), UniverseTypeAwareTimeStep::operator==(), UniverseTypeAwareTime::operator==(), UniverseTypeAwareTimeStep::operator>(), UniverseTypeAwareTime::operator>(), UniverseTypeAwareTime::operator>=(), TLEFile::Read(), NEODYSCAT::Read(), JPLDastcomCometFile::Read(), JPLDastcomUnnumFile::Read(), JPLDastcomNumFile::Read(), AstDySMatrixFile::Read(), OrsaFile::Read(), MPCCometFile::Read(), MPCOrbFile::Read(), AstorbFile::Read(), orsa::StartFrame(), OrsaFile::Write(), and Universe::~Universe().

Generated on Tue Jan 11 15:27:48 2005 for liborsa by  doxygen 1.4.0