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/***************************************************************************
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"
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