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Diffstat (limited to 'kstars/kstars/planetcatalog.cpp')
| -rw-r--r-- | kstars/kstars/planetcatalog.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/kstars/kstars/planetcatalog.cpp b/kstars/kstars/planetcatalog.cpp new file mode 100644 index 00000000..9817e871 --- /dev/null +++ b/kstars/kstars/planetcatalog.cpp @@ -0,0 +1,178 @@ +/*************************************************************************** + planetcatalog.cpp - description + ------------------- + begin : Mon Feb 18 2002 + copyright : (C) 2002 by Mark Hollomon + email : mhh@mindspring.com + ***************************************************************************/ + +/*************************************************************************** + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +#include <qstring.h> + +#include "planetcatalog.h" +#include "dms.h" +#include "kstarsdata.h" +#include "ksnumbers.h" +#include "ksplanetbase.h" +#include "ksplanet.h" +#include "kssun.h" +#include "kspluto.h" +#include "skypoint.h" +#include "skyobject.h" +#include "objectnamelist.h" + +PlanetCatalog::PlanetCatalog(KStarsData *dat) : Earth(0), Sun(0), kd(dat) { + planets.setAutoDelete(true); +} + +PlanetCatalog::~PlanetCatalog() { + // + // do NOT delete Sun. It is also in the QList + // and will be deleted automatically. + // + delete Earth; +} + + + +bool PlanetCatalog::initialize() { + KSPlanetBase *ksp; + + Earth = new KSPlanet( kd, I18N_NOOP( "Earth" ), "", 12756.28 /*diameter in km*/ ); + if (!Earth->loadData()) + return false; + + Sun = new KSSun( kd, "sun.png", 1392000. /*diameter in km*/ ); + if (Sun->loadData()) { + planets.append(Sun); + } + + ksp = new KSPluto( kd, "pluto.png", 2320. /*diameter in km*/ ); + planets.append(ksp); + + ksp = new KSPlanet( kd, I18N_NOOP( "Mercury" ), "mercury.png", 4879.4 /*diameter in km*/ ); + if (ksp->loadData()) { + planets.append(ksp); + } + + ksp = new KSPlanet( kd, I18N_NOOP( "Venus" ), "venus.png", 12103.6 /*diameter in km*/ ); + if (ksp->loadData()) { + planets.append(ksp); + } + + ksp = new KSPlanet( kd, I18N_NOOP( "Mars" ), "mars.png", 6792.4 /*diameter in km*/ ); + if (ksp->loadData()) { + planets.append(ksp); + } + + ksp = new KSPlanet( kd, I18N_NOOP( "Jupiter" ), "jupiter.png", 142984. /*diameter in km*/ ); + if (ksp->loadData()) { + planets.append(ksp); + } + + ksp = new KSPlanet( kd, I18N_NOOP( "Saturn" ), "saturn.png", 120536. /*diameter in km*/ ); + if (ksp->loadData()) { + planets.append(ksp); + } + + ksp = new KSPlanet( kd, I18N_NOOP( "Uranus" ), "uranus.png", 51118. /*diameter in km*/ ); + if (ksp->loadData()) { + planets.append(ksp); + } + + ksp = new KSPlanet( kd, I18N_NOOP( "Neptune" ), "neptune.png", 49572. /*diameter in km*/ ); + if (ksp->loadData()) { + planets.append(ksp); + } + + return true; +} + +void PlanetCatalog::addObject( ObjectNameList &ObjNames ) const { + QPtrListIterator<KSPlanetBase> it(planets); + + for (KSPlanetBase *ksp = it.toFirst(); ksp != 0; ksp = ++it) { + ObjNames.append( ksp ); + } +} + +void PlanetCatalog::findPosition( const KSNumbers *num, const dms *lat, const dms *LST ) { + Earth->findPosition(num); + for (KSPlanetBase * ksp = planets.first(); ksp != 0; ksp = planets.next()) { + ksp->findPosition(num, lat, LST, Earth); + } +} + +void PlanetCatalog::EquatorialToHorizontal( dms *LST, const dms *lat ) { + for (KSPlanetBase * ksp = planets.first(); ksp != 0; ksp = planets.next()) { + ksp->EquatorialToHorizontal( LST, lat); + if ( ksp->hasTrail() ) ksp->updateTrail( LST, lat ); + } +} + +bool PlanetCatalog::isPlanet(SkyObject *so) const { + if (so == Earth) + return true; + + QPtrListIterator<KSPlanetBase> it(planets); + + for (KSPlanetBase *ksp = it.toFirst(); ksp != 0; ksp = ++it) { + if (so == ksp) + return true; + } + + return false; +} + +KSPlanetBase *PlanetCatalog::findByName( const QString n) const { + if (n == "Earth") + return Earth; + + QPtrListIterator<KSPlanetBase> it(planets); + + for (KSPlanetBase *ksp = it.toFirst(); ksp != 0; ksp = ++it) { + if (ksp->name() == n) + return ksp; + } + + kdDebug() << k_funcinfo << "could not find planet named " << n << endl; + + return 0; +} + +static double dist_squared(const SkyPoint *a, const SkyPoint *b) { + double dRA = a->ra()->Hours() - b->ra()->Hours(); + double dDec = a->dec()->Degrees() - b->dec()->Degrees(); + double f = 15.0*cos( a->dec()->radians() ); + + return f*f*dRA*dRA + dDec*dDec; +} + +SkyObject *PlanetCatalog::findClosest(const SkyPoint *p, double &r) const { + QPtrListIterator<KSPlanetBase> it(planets); + SkyObject *found = 0; + double trialr = 0.0; + double rmin = 100000.0; + + for (KSPlanetBase *ksp = it.toFirst(); ksp != 0; ksp = ++it) { + trialr = dist_squared(ksp, p); + if (trialr < rmin) { + rmin = trialr; + found = ksp; + } + } + + r = rmin; + return found; + +} + +#include "planetcatalog.moc" |