MPCOrbFile Class Reference

MPC asteroids database file. More...

#include <orsa_file.h>

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List of all members.

Public Member Functions

 MPCOrbFile ()
 ~MPCOrbFile ()
void Read ()
virtual void read_progress (int, bool &, bool &)
virtual void read_finished ()
void Open ()
void Close ()
virtual std::string GetFileName () const
virtual void SetFileName (std::string name_in)
virtual void SetFileName (char *name_in)

Public Attributes

AsteroidDatabasedb

Protected Attributes

std::string filename
FILE_TYPE file
FILE_STATUS status


Detailed Description

MPC asteroids database file.

Definition at line 343 of file orsa_file.h.


Constructor & Destructor Documentation

MPCOrbFile (  ) 

Definition at line 380 of file orsa_file.cc.

References AsteroidDatabaseFile::db.

00380                          : AsteroidDatabaseFile() {
00381     db = new AsteroidDatabase();
00382   }

~MPCOrbFile (  ) 

Definition at line 384 of file orsa_file.cc.

References AsteroidDatabaseFile::db.

00384                           {
00385     delete db;
00386     db = 0;
00387   }


Member Function Documentation

void Read (  )  [virtual]

Implements ReadFile.

Definition at line 389 of file orsa_file.cc.

References Orbit::a, orsa::AU, OrbitWithEpoch::Compute(), AsteroidDatabaseFile::db, Orbit::e, orsa::ECLIPTIC, orsa::EclipticToEquatorial_J2000(), OrbitWithEpoch::epoch, orsa::EQUATORIAL, File::file, orsa::FromUnits(), orsa::GetG(), orsa::GetMSun(), Universe::GetReferenceSystem(), GETS_FILE, Orbit::i, Orbit::M, orsa::M, Asteroid::mag, Orbit::mu, Asteroid::n, Asteroid::name, Orbit::omega_node, Orbit::omega_pericenter, ReadFile::Open(), orsa::OPEN_R, Asteroid::orb, ORSA_ERROR, orsa::pi, AsteroidDatabaseFile::read_finished(), AsteroidDatabaseFile::read_progress(), OrbitWithEpoch::RelativePosVel(), orsa::remove_leading_trailing_spaces(), REWIND_FILE, UniverseTypeAwareTime::SetDate(), Date::SetGregor(), File::status, orsa::TDT, and orsa::universe.

00389                         {
00390     
00391     Open();
00392     
00393     if (status != OPEN_R) {
00394       ORSA_ERROR("Status error!");
00395       return;
00396     }
00397     
00398     db->clear();
00399     
00400     // Body orb_ref_body("",GetMSun());
00401     
00402     // unsigned int local_index;
00403     
00404     char line[300];
00405     
00406     double a,e,i,omega_node,omega_pericenter,M;
00407     // int    n;
00408     string number,name,orbit_computer,absolute_magnitude,arc,numobs,epoch;
00409     string mean_anomaly,pericenter,node,inclination,eccentricity,semimajor_axis;
00410     // string ceu;
00411     
00412     string year,month,day;
00413     int    y=0,m=0,d=0;
00414     
00415     // AstorbDataEntry ast;
00416     Asteroid ast;
00417     
00418     unsigned int local_index = 0;
00419     bool bool_stop=false;
00420     bool bool_pause=false;
00421 
00422     REWIND_FILE(file);
00423     
00424     // Date tmp_date(TDT);
00425     Date tmp_date;
00426     
00427     /* // skip header, not needed with the check on (strlen(line) < 201)...
00428        do { 
00429        GETS_FILE(line,300,file);
00430        } while (line[0] != '-');
00431        cerr << "below the header..." << endl;
00432     */
00433     
00434     while ( (GETS_FILE(line,300,file)) != 0 ) {
00435       
00436       // cerr << "line: -->" << line << "<--" << endl; 
00437       
00438       ++local_index;
00439       
00440       if (strlen(line) < 201) continue; // not a good line, maybe a comment or a white line...
00441       
00442       // cerr << "strlen(line): " << strlen(line) << endl;
00443       
00444       // cerr << "line: -->" << line << "<--" << endl; 
00445       
00446       read_progress(local_index,bool_pause,bool_stop);
00447       
00448       if (bool_stop) break;
00449       
00450       while (bool_pause) {
00451         sleep(1);
00452         read_progress(local_index,bool_pause,bool_stop);
00453       }
00454       
00455       // uncomment the ones used
00456       number.assign(line,0,7);
00457       absolute_magnitude.assign(line,8,5);
00458       epoch.assign(line,20,5);
00459       //
00460       mean_anomaly.assign(line,26,9);
00461       pericenter.assign(line,37,9);
00462       node.assign(line,48,9);
00463       inclination.assign(line,59,9);
00464       eccentricity.assign(line,70,9);
00465       semimajor_axis.assign(line,92,11);
00466       //
00467       numobs.assign(line,117,5);
00468       orbit_computer.assign(line,150,10);
00469       
00470       if (strlen(line) > 160) {
00471         name.assign(line,166,28);
00472       } else {
00473         name = "";      
00474       }
00475       
00476       // conversions
00477       
00478       {
00479         // remove -->(NUMBER)<--
00480         
00481         string::size_type pos_open  = name.find("(",0);
00482         string::size_type pos_close = name.find(")",0);
00483         
00484         if ( (pos_open  != pos_close) &&
00485              (pos_open  != string::npos) &&
00486              (pos_close != string::npos) ) {
00487           
00488           name.erase(pos_open,pos_close-pos_open+1);
00489         }
00490       }    
00491       //
00492       ast.name = name;
00493       remove_leading_trailing_spaces(ast.name);
00494       
00495       // ast.n = 0; // arbitrary, for the moment
00496       ast.n = atoi(number.c_str());
00497       
00498       ast.mag  = atof(absolute_magnitude.c_str());
00499          
00500       a                = atof(semimajor_axis.c_str());
00501       e                = atof(eccentricity.c_str());
00502       i                = (pi/180)*atof(inclination.c_str());
00503       omega_node       = (pi/180)*atof(node.c_str());
00504       omega_pericenter = (pi/180)*atof(pericenter.c_str());
00505       M                = (pi/180)*atof(mean_anomaly.c_str());
00506       
00507       ast.orb.a                = FromUnits(a,AU);
00508       ast.orb.e                = e;
00509       ast.orb.i                = i;
00510       ast.orb.omega_node       = omega_node;
00511       ast.orb.omega_pericenter = omega_pericenter;
00512       ast.orb.M                = M;
00513 
00514       int ch;
00515       // cerr << "epoch string: " << epoch << endl;
00516       //// epoch
00517       // year
00518       year.assign(epoch,0,1);
00519       ch = (int)year.c_str()[0];
00520       // cerr << "ch: " << ch << "  " << ((int)('I')) << endl;
00521       switch (ch) {
00522       case 'I': y=1800; break; 
00523       case 'J': y=1900; break;
00524       case 'K': y=2000; break;
00525       }
00526       //
00527       year.assign(epoch,1,2);
00528       y += atoi(year.c_str());
00529       // month
00530       month.assign(epoch,3,1);
00531       ch = (int)month.c_str()[0];
00532       switch (ch) {
00533       case '1': m=1;  break;
00534       case '2': m=2;  break;
00535       case '3': m=3;  break;
00536       case '4': m=4;  break;
00537       case '5': m=5;  break;
00538       case '6': m=6;  break;
00539       case '7': m=7;  break;
00540       case '8': m=8;  break;
00541       case '9': m=9;  break;
00542       case 'A': m=10; break; 
00543       case 'B': m=11; break;
00544       case 'C': m=12; break;
00545       }
00546       // day
00547       day.assign(epoch,4,1);
00548       ch = (int)day.c_str()[0];
00549       switch (ch) {
00550       case '1': d=1;  break;
00551       case '2': d=2;  break;
00552       case '3': d=3;  break;
00553       case '4': d=4;  break;
00554       case '5': d=5;  break;
00555       case '6': d=6;  break;
00556       case '7': d=7;  break;
00557       case '8': d=8;  break;
00558       case '9': d=9;  break;
00559       case 'A': d=10; break; 
00560       case 'B': d=11; break;
00561       case 'C': d=12; break;
00562       case 'D': d=13; break;
00563       case 'E': d=14; break;
00564       case 'F': d=15; break;
00565       case 'G': d=16; break;
00566       case 'H': d=17; break;
00567       case 'I': d=18; break;
00568       case 'J': d=19; break;
00569       case 'K': d=20; break;
00570       case 'L': d=21; break;
00571       case 'M': d=22; break;
00572       case 'N': d=23; break;
00573       case 'O': d=24; break;
00574       case 'P': d=25; break;
00575       case 'Q': d=26; break;
00576       case 'R': d=27; break;
00577       case 'S': d=28; break;
00578       case 'T': d=29; break;
00579       case 'U': d=30; break;
00580       case 'V': d=31; break;
00581       }
00582       //
00583       // cerr << "MPC::Read() --> y: " << y << "  m: " << m << "  d: " << d << endl;
00584       // ast.orb.time = FromUnits(GregorianToSdn(y,m,d)-0.5,DAY);
00585       tmp_date.SetGregor(y,m,d,TDT);
00586       ast.orb.epoch.SetDate(tmp_date);
00587       
00588       // ast.orb.T = sqrt(4*pisq/(GetG()*GetMSun())*pow(FromUnits(ast.orb.a,AU),3));
00589       ast.orb.mu = GetG()*GetMSun();
00590       // ast.orb.ref_body.mass=GetMSun();
00591       // ast.orb.ref_body = Body("",GetMSun());
00592       // ast.orb.ref_body = orb_ref_body;
00593       
00594       /* 
00595          switch (universe->GetReferenceSystem()) {
00596          case ECLIPTIC: break;
00597          case EQUATORIAL:
00598          { 
00599          // cerr << "Rotating astorb orbit..." << endl;
00600          const double obleq_rad = obleq(tmp_date).GetRad();
00601          Vector position,velocity;
00602          ast.orb.RelativePosVel(position,velocity);
00603          position.rotate(0.0,obleq_rad,0.0);
00604          velocity.rotate(0.0,obleq_rad,0.0);
00605          ast.orb.Compute(position,velocity,ast.orb.mu,ast.orb.epoch);
00606          }
00607          break;
00608          }
00609       */
00610       
00611       switch (universe->GetReferenceSystem()) {
00612       case ECLIPTIC: break;
00613       case EQUATORIAL:
00614         { 
00615           Vector position,velocity;
00616           ast.orb.RelativePosVel(position,velocity);
00617           EclipticToEquatorial_J2000(position);
00618           EclipticToEquatorial_J2000(velocity);
00619           ast.orb.Compute(position,velocity,ast.orb.mu,ast.orb.epoch);
00620         }
00621         break;
00622       }
00623       
00624       // cerr << "adding object: " << ast.name << "  a: " << ast.orb.a << endl;
00625       
00626       db->push_back(ast);
00627       
00628     }
00629     
00630     read_finished();
00631   }

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virtual void read_progress ( int  ,
bool &  ,
bool &   
) [inline, virtual, inherited]

virtual void read_finished (  )  [inline, virtual, inherited]

void Open (  )  [inherited]

void Close (  )  [inherited]

virtual std::string GetFileName (  )  const [inline, virtual, inherited]

Definition at line 99 of file orsa_file.h.

References File::filename.

Referenced by OrsaFile::Read().

00099 { return filename; }

virtual void SetFileName ( std::string  name_in  )  [inline, virtual, inherited]

Definition at line 101 of file orsa_file.h.

References File::Close(), orsa::CLOSE, File::filename, and File::status.

Referenced by OrsaConfigFile::OrsaConfigFile(), and File::SetFileName().

00101                                                         {
00102       if (status != CLOSE) Close();
00103       filename = name_in;
00104     }

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virtual void SetFileName ( char *  name_in  )  [inline, virtual, inherited]

Definition at line 106 of file orsa_file.h.

References File::SetFileName().

00106                                                      {
00107       std::string n = name_in;
00108       SetFileName (n);
00109     }

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Member Data Documentation

AsteroidDatabase* db [inherited]

std::string filename [protected, inherited]

FILE_TYPE file [protected, inherited]

FILE_STATUS status [protected, inherited]


The documentation for this class was generated from the following files:

Generated on Thu Feb 14 21:41:48 2008 for liborsa by  doxygen 1.5.5