QTime SkyObject::riseSetTime( const KStarsDateTime &dt, const GeoLocation *geo, bool rst ) {
//this object does not rise or set; return an invalid time
if ( checkCircumpolar(geo->lat()) )
return QTime( 25, 0, 0 );
//First of all, if the object is below the horizon at date/time dt, adjust the time
//to bring it above the horizon
KStarsDateTime dt2 = dt;
SkyPoint p = recomputeCoords( dt, geo );
p.EquatorialToHorizontal( &(geo->GSTtoLST( dt.gst() )), geo->lat() );
if ( p.alt()->Degrees() < 0.0 ) {
if ( p.az()->Degrees() < 180.0 ) { //object has not risen yet
dt2 = dt.addSecs( 12.*3600. );
} else { //object has already set
dt2 = dt.addSecs( -12.*3600. );
}
}
return geo->UTtoLT( KStarsDateTime( dt2.date(), riseSetTimeUT( dt2, geo, rst ) ) ).time();
}
QTime SkyObject::transitTimeUT( const KStarsDateTime &dt, const GeoLocation *geo ) {
dms LST = geo->GSTtoLST( dt.gst() );
//dSec is the number of seconds until the object transits.
dms HourAngle = dms( LST.Degrees() - ra()->Degrees() );
int dSec = int( -3600.*HourAngle.Hours() );
//dt0 is the first guess at the transit time.
KStarsDateTime dt0 = dt.addSecs( dSec );
//recompute object's position at UT0 and then find
//transit time of this refined position
SkyPoint sp = recomputeCoords( dt0, geo );
const dms *ram = sp.ra0();
HourAngle = dms ( LST.Degrees() - ram->Degrees() );
dSec = int( -3600.*HourAngle.Hours() );
return dt.addSecs( dSec ).time();
}
void modCalcAltAz::slotCompute()
{
//Determine whether we are calculating Alt/Az coordinates from RA/Dec,
//or vice versa. We calculate Alt/Az by default, unless the signal
//was sent by changing the Az or Alt value.
if ( sender()->objectName() == "Az" || sender()->objectName() == "Alt" ) {
//Validate Az and Alt coordinates
bool ok( false );
dms alt;
dms az = Az->createDms( true, &ok );
if ( ok ) alt = Alt->createDms( true, &ok );
if ( ok ) {
SkyPoint sp;
sp.setAz( az );
sp.setAlt( alt );
sp.HorizontalToEquatorial( &LST, geoPlace->lat() );
RA->showInHours( sp.ra() );
Dec->showInDegrees( sp.dec() );
}
} else {
//Validate RA and Dec coordinates
bool ok( false );
dms ra;
dms dec = Dec->createDms( true, &ok );
if ( ok ) ra = RA->createDms( false, &ok );
if ( ok ) {
SkyPoint sp( ra, dec );
sp.EquatorialToHorizontal( &LST, geoPlace->lat() );
Az->showInDegrees( sp.az() );
Alt->showInDegrees( sp.alt() );
}
}
}
SkyPoint EquirectangularProjector::fromScreen(const QPointF& p, dms* LST, const dms* lat) const
{
SkyPoint result;
//Convert pixel position to x and y offsets in radians
double dx = (0.5*m_vp.width - p.x())/m_vp.zoomFactor;
double dy = (0.5*m_vp.height - p.y())/m_vp.zoomFactor;
if ( m_vp.useAltAz ) {
dms az, alt;
dx = -1.0*dx; //Azimuth goes in opposite direction compared to RA
az.setRadians( dx + m_vp.focus->az().radians() );
alt.setRadians( dy + m_vp.focus->alt().radians() );
result.setAz( az.reduce() );
if ( m_vp.useRefraction )
alt = SkyPoint::unrefract( alt );
result.setAlt( alt );
result.HorizontalToEquatorial( LST, lat );
return result;
} else {
dms ra, dec;
ra.setRadians( dx + m_vp.focus->ra().radians() );
dec.setRadians( dy + m_vp.focus->dec().radians() );
result.set( ra.reduce(), dec );
result.EquatorialToHorizontal( LST, lat );
return result;
}
}
double SkyPoint::vRSun(long double jd0) {
double ca, sa, cd, sd, vsun;
double cosRA, sinRA, cosDec, sinDec;
/* Sun apex (where the sun goes) coordinates */
dms asun(270.9592); // Right ascention: 18h 3m 50.2s [J2000]
dms dsun(30.00467); // Declination: 30^o 0' 16.8'' [J2000]
vsun=20.; // [km/s]
asun.SinCos(sa,ca);
dsun.SinCos(sd,cd);
/* We need an auxiliary SkyPoint since we need the
* source referred to the J2000 equinox and we do not want to ovewrite
* the current values
*/
SkyPoint aux;
aux.set(RA0,Dec0);
aux.precessFromAnyEpoch(jd0, J2000);
aux.ra().SinCos( sinRA, cosRA );
aux.dec().SinCos( sinDec, cosDec );
/* Computation is done performing the scalar product of a unitary vector
in the direction of the source with the vector velocity of Sun, both being in the
LSR reference system:
Vlsr = Vhel + Vsun.u_radial =>
Vlsr = Vhel + vsun(cos D cos A,cos D sen A,sen D).(cos d cos a,cos d sen a,sen d)
Vhel = Vlsr - Vsun.u_radial
*/
return vsun *(cd*cosDec*(cosRA*ca + sa*sinRA) + sd*sinDec);
}
SkyPoint Projector::fromScreen(const QPointF& p, dms* LST, const dms* lat) const
{
dms c;
double sinc, cosc;
/** N.B. We don't cache these sin/cos values in the inverse
* projection because it causes 'shaking' when moving the sky.
*/
double sinY0, cosY0;
//Convert pixel position to x and y offsets in radians
double dx = (0.5*m_vp.width - p.x())/m_vp.zoomFactor;
double dy = (0.5*m_vp.height - p.y())/m_vp.zoomFactor;
double r = sqrt( dx*dx + dy*dy );
c.setRadians( projectionL(r) );
c.SinCos( sinc, cosc );
if( m_vp.useAltAz ) {
dx = -1.0*dx; //Azimuth goes in opposite direction compared to RA
m_vp.focus->alt().SinCos( sinY0, cosY0 );
} else {
m_vp.focus->dec().SinCos( sinY0, cosY0 );
}
double Y = asin( cosc*sinY0 + ( dy*sinc*cosY0 )/r );
double atop = dx*sinc;
double abot = r*cosY0*cosc - dy*sinY0*sinc;
double A = atan2( atop, abot );
SkyPoint result;
if ( m_vp.useAltAz ) {
dms alt, az;
alt.setRadians( Y );
az.setRadians( A + m_vp.focus->az().radians() );
if ( m_vp.useRefraction )
alt = SkyPoint::unrefract( alt );
result.setAlt( alt );
result.setAz( az );
result.HorizontalToEquatorial( LST, lat );
} else {
dms ra, dec;
dec.setRadians( Y );
ra.setRadians( A + m_vp.focus->ra().radians() );
result.set( ra.reduce(), dec );
result.EquatorialToHorizontal( LST, lat );
}
return result;
}
int ObservationCache::create(RunGeometry &geom, Catalog *cat, ObservationCalculator *calc)
{
const int blockSize = 10000;
int recordCount = cat->recordCount();
cout << setprecision(6);
MJD d0 = geom.tstart - 4./24.;
// cout << d0 << "\n";
cout << "\n";
const int maxiter = 10;
int hist[maxiter+1] = {0};
// start progress bar
cout << "Progress [ "; cout.flush();
// calculate cache
vector<Asteroid> obj;
vector<Observation> obsv;
int i = 0, prog = 0;
double tref;
while(i < recordCount) {
int read = cat->read(obj, i, i+blockSize);
// calculate positions for the time of TDI scan start (0th approximation)
calc->calculateObservations(obsv, geom.tstart, obj, ObsFlags::pos | ObsFlags::vel, CalcFlags::twoBody);
// start iterative approximation for TDI display
for(int k = 0; k != obsv.size(); k++) {
Observation &o = obsv[k];
coordinates::equgcs(geom.node, geom.inc, o.ra, o.dec, o.ra, o.dec);
o.t0 = geom.tstart;
int j;
SkyPoint old;
for(j = 0; j != maxiter; j++) {
// if(i == 1023) { cout << setprecision(10) << j << " " << o.ra/ctn::d2r << " " << o.dec/ctn::d2r << " " << o.t0 << "\n"; cout.flush();}
old = SkyPoint(o.ra, o.dec);
// deal with compact (ra, dec) coordinate system
#if 0
// this piece contained a _very_ subtle bug if the slew rate was != 1/360deg...
o.t0 = geom.tstart + (o.ra - geom.muStart)/(ctn::pi2*361./360.);
// o.t0 = geom.tstart + (o.ra - geom.muStart)/(ctn::pi2);
#else
Radians len = o.ra > geom.muStart ? o.ra - geom.muStart : o.ra + ctn::pi2 - geom.muStart;
o.t0 = geom.tstart + len/(ctn::pi2*1.00273791);
// o.t0 = geom.tstart + len/(ctn::pi2);
#endif
while(o.t0 > d0 + 1) o.t0 -= 1;
while(o.t0 < d0 ) o.t0 += 1;
// new approximation
calc->calculateObservation(o, o.t0, obj[k], ObsFlags::pos | ObsFlags::vel, CalcFlags::twoBody);
coordinates::equgcs(geom.node, geom.inc, o.ra, o.dec, o.ra, o.dec);
// check convergence
double dist = old.distance(SkyPoint(o.ra, o.dec));
/* if(!strcmp(o.name, "2005 SV285"))
{
fprintf(stderr, "t0,t1=%f,%f, iter=%d, dist=%f, t=%f, name=%s, muOld=%f, mu=%f, nu=%f]\n", geom.tstart, geom.tend, j, dist/ctn::s2r, o.t0, o.name, old.ra/ctn::d2r, o.ra/ctn::d2r, o.dec/ctn::d2r);
}
*/ if(dist < 0.01*ctn::s2r) break;
}
if(j == maxiter && (fabs(o.t0 - d0) > 0.04 && fabs(o.t0 - d0) < 0.96)) {
// didn't converge - sound a warning
fprintf(stderr, "A TDI position calculation didn't converge [id=%d, name=%s, raOld=%f, ra=%f, dec=%f]\n", o.id, o.name, old.ra/ctn::d2r, o.ra/ctn::d2r, o.dec/ctn::d2r);
fprintf(stderr, "t0,t1=%f,%f,%f iter=%d, t=%f, name=%s, muOld=%f, mu=%f, nu=%f]\n", geom.tstart, geom.tend, o.t0-d0, j, o.t0, o.name, old.ra/ctn::d2r, o.ra/ctn::d2r, o.dec/ctn::d2r);
}
hist[j]++;
}
fwrite(reinterpret_cast<void *>(&*obsv.begin()), sizeof(Observation), obsv.size(), f);
i += read;
// progress bar
while(int(50*double(i)/double(recordCount)) > prog) {
cout << "#"; cout.flush();
prog++;
}
}
// finish progress bar
cout << " ]\n"; cout.flush();
// construct and write the true header
Header h;
memset(&h, 0, sizeof(h));
h.geom = geom;
h.len = i;
strcpy(h.catalog, "NATIVE");
// cat->identify(h.catalog);
setHeader(h);
closeCache();
for(int i = 0; i != maxiter; i++) {
cout << i+1 << ":" << hist[i] << (i+1 != maxiter ? " | " : "\n");
}
return 0;
}
void KSPlanetBase::updateTrail( dms *LST, const dms *lat ) {
for ( SkyPoint *sp = Trail.first(); sp; sp = Trail.next() )
sp->EquatorialToHorizontal( LST, lat );
}
void ExportEyepieceView::render() {
float baseWidth = m_renderChart->width();
float baseHeight = m_renderChart->height();
if( m_renderImage )
m_output = QImage( int(baseWidth * 2.25), int(baseHeight), QImage::Format_ARGB32 ); // 0.25 * baseWidth gap between the images
else
m_output = QImage( int(baseWidth), int(baseHeight), QImage::Format_ARGB32 );
m_output.fill( Qt::white );
QPainter op( &m_output );
op.drawPixmap( QPointF(0,0), *m_renderChart );
if( m_renderImage )
op.drawPixmap( QPointF(baseWidth * 1.25,0), *m_renderImage );
if( m_tickConfig != 0 && Options::useAltAz() ) { // FIXME: this is very skymap-state-heavy for my happiness --asimha
// we must draw ticks
QImage tickOverlay( baseWidth, baseHeight, QImage::Format_ARGB32 );
tickOverlay.fill( Qt::transparent );
QPainter p( &tickOverlay );
p.setPen( Qt::red ); // FIXME: Determine color depending on situation, or make it configurable
double rEnd = 0.85 * ( baseWidth / 2.);
double rStart = 0.8 * ( baseWidth / 2.);
QFont font;
font.setPixelSize( ( rEnd - rStart ) );
p.setFont( font );
GeoLocation *geo = KStarsData::Instance()->geo();
double alt0 = m_sp->alt().Degrees(); // altitude when hour = 0, i.e. at m_dt (see below).
dms northAngle0 = EyepieceField::findNorthAngle( m_sp, geo->lat() );
for( float hour = -3.5; hour <= 3.5; hour += 0.5 ) {
dms rotation; // rotation
// FIXME: Code duplication : code duplicated from EyepieceField. This should really be a member of SkyPoint or something.
SkyPoint sp = SkyPoint::timeTransformed( m_sp, m_dt, geo, hour );
double alt = sp.alt().Degrees();
dms northAngle = EyepieceField::findNorthAngle( &sp, geo->lat() );
rotation = ( northAngle - northAngle0 );
if( m_tickConfig == 2 ) {
// Dobsonian: add additional CW rotation by altitude, but compensate for the fact that we've already rotated by alt0
rotation = rotation - dms( ( alt - alt0 ) );
}
rotation = rotation.reduce();
p.save();
p.translate( baseWidth/2.0, baseHeight/2.0 );
p.rotate( -( rotation.Degrees() + 90.0 ) );
p.drawLine( QPointF( rStart, 0 ), QPointF( rEnd, 0 ) );
QTime ct = geo->UTtoLT( m_dt.addSecs( 3600.0 * hour ) ).time();
p.drawText( QPointF( rEnd + 0.01 * baseWidth, 0 ), QString().sprintf( "%02d:%02d", ct.hour(), ct.minute() ) );
p.restore();
}
p.end();
op.drawImage( QPointF(0,0), tickOverlay );
if( m_renderImage ) {
op.drawImage( QPointF(baseWidth * 1.25, 0), tickOverlay );
}
}
op.end();
m_outputDisplay->setPixmap( (QPixmap::fromImage( m_output )).scaled( m_outputDisplay->width(), m_outputDisplay->height(), Qt::KeepAspectRatio, Qt::SmoothTransformation ) );
}
void modCalcVlsr::processLines( QTextStream &istream ) {
// we open the output file
// QTextStream istream(&fIn);
QString outputFileName;
outputFileName = OutputFileBoxBatch->url().toLocalFile();
QFile fOut( outputFileName );
fOut.open(QIODevice::WriteOnly);
QTextStream ostream(&fOut);
QString line;
QChar space = ' ';
int i = 0;
long double jd0;
SkyPoint spB;
double sra, cra, sdc, cdc;
dms raB, decB, latB, longB;
QString epoch0B;
double vhB, vgB, vtB, vlsrB, heightB;
double vtopo[3];
QTime utB;
QDate dtB;
KStarsDateTime dt0B;
while ( ! istream.atEnd() ) {
line = istream.readLine();
line.trimmed();
//Go through the line, looking for parameters
QStringList fields = line.split( ' ' );
i = 0;
// Read Ut and write in ostream if corresponds
if(UTCheckBatch->isChecked() ) {
utB = QTime::fromString( fields[i] );
i++;
} else
utB = UTBoxBatch->time();
if ( AllRadioBatch->isChecked() )
ostream << KGlobal::locale()->formatTime( utB ) << space;
else
if(UTCheckBatch->isChecked() )
ostream << KGlobal::locale()->formatTime( utB ) << space;
// Read date and write in ostream if corresponds
if(DateCheckBatch->isChecked() ) {
dtB = QDate::fromString( fields[i] );
i++;
} else
dtB = DateBoxBatch->date();
if ( AllRadioBatch->isChecked() )
ostream << KGlobal::locale()->formatDate( dtB, KLocale::LongDate ).append(space);
else
if(DateCheckBatch->isChecked() )
ostream << KGlobal::locale()->formatDate( dtB, KLocale::LongDate ).append(space);
// Read RA and write in ostream if corresponds
if(RACheckBatch->isChecked() ) {
raB = dms::fromString( fields[i],false);
i++;
} else
raB = RABoxBatch->createDms(false);
if ( AllRadioBatch->isChecked() )
ostream << raB.toHMSString() << space;
else
if(RACheckBatch->isChecked() )
ostream << raB.toHMSString() << space;
// Read DEC and write in ostream if corresponds
if(DecCheckBatch->isChecked() ) {
decB = dms::fromString( fields[i], true);
i++;
} else
decB = DecBoxBatch->createDms();
if ( AllRadioBatch->isChecked() )
ostream << decB.toDMSString() << space;
else
if(DecCheckBatch->isChecked() )
ostream << decB.toDMSString() << space;
// Read Epoch and write in ostream if corresponds
if(EpochCheckBatch->isChecked() ) {
epoch0B = fields[i];
i++;
} else
epoch0B = EpochBoxBatch->text();
if ( AllRadioBatch->isChecked() )
ostream << epoch0B << space;
else
if(EpochCheckBatch->isChecked() )
ostream << epoch0B << space;
// Read vlsr and write in ostream if corresponds
if(InputVelocityCheckBatch->isChecked() ) {
vlsrB = fields[i].toDouble();
i++;
} else
vlsrB = InputVelocityComboBatch->currentText().toDouble();
if ( AllRadioBatch->isChecked() )
ostream << vlsrB << space;
else
if(InputVelocityCheckBatch->isChecked() )
ostream << vlsrB << space;
// Read Longitude and write in ostream if corresponds
if (LongCheckBatch->isChecked() ) {
longB = dms::fromString( fields[i],true);
i++;
} else
longB = LongitudeBoxBatch->createDms(true);
if ( AllRadioBatch->isChecked() )
ostream << longB.toDMSString() << space;
else
if (LongCheckBatch->isChecked() )
ostream << longB.toDMSString() << space;
// Read Latitude
if (LatCheckBatch->isChecked() ) {
latB = dms::fromString( fields[i], true);
i++;
} else
latB = LatitudeBoxBatch->createDms(true);
if ( AllRadioBatch->isChecked() )
ostream << latB.toDMSString() << space;
else
if (LatCheckBatch->isChecked() )
ostream << latB.toDMSString() << space;
// Read height and write in ostream if corresponds
if(ElevationCheckBatch->isChecked() ) {
heightB = fields[i].toDouble();
i++;
} else
heightB = ElevationBoxBatch->text().toDouble();
if ( AllRadioBatch->isChecked() )
ostream << heightB << space;
else
if(ElevationCheckBatch->isChecked() )
ostream << heightB << space;
// We make the first calculations
spB = SkyPoint (raB, decB);
dt0B.setFromEpoch(epoch0B);
vhB = spB.vHeliocentric(vlsrB, dt0B.djd());
jd0 = KStarsDateTime(dtB,utB).djd();
vgB = spB.vGeocentric(vlsrB, jd0);
geoPlace->setLong( longB );
geoPlace->setLat( latB );
geoPlace->setHeight( heightB );
dms gsidt = KStarsDateTime(dtB,utB).gst();
geoPlace->TopocentricVelocity(vtopo, gsidt);
spB.ra().SinCos(sra, cra);
spB.dec().SinCos(sdc, cdc);
vtB = vgB - (vtopo[0]*cdc*cra + vtopo[1]*cdc*sra + vtopo[2]*sdc);
ostream << vhB << space << vgB << space << vtB << endl;
}
fOut.close();
}
void modCalcAzel::processLines( QTextStream &istream ) {
// we open the output file
// QTextStream istream(&fIn);
QString outputFileName;
outputFileName = OutputLineEditBatch->text();
QFile fOut( outputFileName );
fOut.open(IO_WriteOnly);
QTextStream ostream(&fOut);
QString line;
QString space = " ";
int i = 0;
long double jd0, jdf;
dms LST;
SkyPoint sp;
dms raB, decB, latB, longB, azB, elB;
double epoch0B;
QTime utB;
ExtDate dtB;
while ( ! istream.eof() ) {
line = istream.readLine();
line.stripWhiteSpace();
//Go through the line, looking for parameters
QStringList fields = QStringList::split( " ", line );
i = 0;
// Read Ut and write in ostream if corresponds
if(utCheckBatch->isChecked() ) {
utB = QTime::fromString( fields[i] );
i++;
} else
utB = utBoxBatch->time();
if ( allRadioBatch->isChecked() )
ostream << utB.toString() << space;
else
if(utCheckBatch->isChecked() )
ostream << utB.toString() << space;
// Read date and write in ostream if corresponds
if(dateCheckBatch->isChecked() ) {
dtB = ExtDate::fromString( fields[i] );
i++;
} else
dtB = dateBoxBatch->date();
if ( allRadioBatch->isChecked() )
ostream << dtB.toString().append(space);
else
if(dateCheckBatch->isChecked() )
ostream << dtB.toString().append(space);
// Read Longitude and write in ostream if corresponds
if (longCheckBatch->isChecked() ) {
longB = dms::fromString( fields[i],TRUE);
i++;
} else
longB = longBoxBatch->createDms(TRUE);
if ( allRadioBatch->isChecked() )
ostream << longB.toDMSString() << space;
else
if (longCheckBatch->isChecked() )
ostream << longB.toDMSString() << space;
// Read Latitude
if (latCheckBatch->isChecked() ) {
latB = dms::fromString( fields[i], TRUE);
i++;
} else
latB = latBoxBatch->createDms(TRUE);
if ( allRadioBatch->isChecked() )
ostream << latB.toDMSString() << space;
else
if (latCheckBatch->isChecked() )
ostream << latB.toDMSString() << space;
// Read Epoch and write in ostream if corresponds
if(epochCheckBatch->isChecked() ) {
epoch0B = fields[i].toDouble();
i++;
} else
epoch0B = getEpoch( epochBoxBatch->text() );
if ( allRadioBatch->isChecked() )
ostream << epoch0B << space;
else
if(epochCheckBatch->isChecked() )
ostream << epoch0B << space;
// We make the first calculations
KStarsDateTime dt;
dt.setFromEpoch( epoch0B );
jdf = KStarsDateTime(dtB,utB).djd();
jd0 = dt.djd();
LST = KStarsDateTime(dtB,utB).gst().Degrees() + longB.Degrees();
// Equatorial coordinates are the input coords.
if (!horInputCoords) {
// Read RA and write in ostream if corresponds
if(raCheckBatch->isChecked() ) {
raB = dms::fromString( fields[i],FALSE);
i++;
} else
raB = raBoxBatch->createDms(FALSE);
if ( allRadioBatch->isChecked() )
ostream << raB.toHMSString() << space;
else
if(raCheckBatch->isChecked() )
ostream << raB.toHMSString() << space;
// Read DEC and write in ostream if corresponds
if(decCheckBatch->isChecked() ) {
decB = dms::fromString( fields[i], TRUE);
i++;
} else
decB = decBoxBatch->createDms();
if ( allRadioBatch->isChecked() )
ostream << decB.toDMSString() << space;
else
if(decCheckBatch->isChecked() )
ostream << decB.toDMSString() << space;
sp = SkyPoint (raB, decB);
sp.apparentCoord(jd0, jdf);
sp.EquatorialToHorizontal( &LST, &latB );
ostream << sp.az()->toDMSString() << space << sp.alt()->toDMSString() << endl;
// Input coords are horizontal coordinates
} else {
if(azCheckBatch->isChecked() ) {
azB = dms::fromString( fields[i],FALSE);
i++;
} else
azB = azBoxBatch->createDms();
if ( allRadioBatch->isChecked() )
ostream << azB.toHMSString() << space;
else
if(raCheckBatch->isChecked() )
ostream << azB.toHMSString() << space;
// Read DEC and write in ostream if corresponds
if(elCheckBatch->isChecked() ) {
elB = dms::fromString( fields[i], TRUE);
i++;
} else
elB = decBoxBatch->createDms();
if ( allRadioBatch->isChecked() )
ostream << elB.toDMSString() << space;
else
if(elCheckBatch->isChecked() )
ostream << elB.toDMSString() << space;
sp.setAz(azB);
sp.setAlt(elB);
sp.HorizontalToEquatorial( &LST, &latB );
ostream << sp.ra()->toHMSString() << space << sp.dec()->toDMSString() << endl;
}
}
fOut.close();
}
void modCalcAzel::showEquCoords ( SkyPoint sp )
{
raBox->show( sp.ra(), FALSE );
decBox->show( sp.dec() );
showEpoch( getDateTime() );
}
QList<const StarObject *> StarHopper::computePath( const SkyPoint &src, const SkyPoint &dest, float fov_, float maglim_ ) {
fov = fov_;
maglim = maglim_;
start = &src;
end = &dest;
came_from.clear();
result_path.clear();
// Implements the A* search algorithm
QList<SkyPoint const *> cSet;
QList<SkyPoint const *> oSet;
QHash<SkyPoint const *, double> g_score;
QHash<SkyPoint const *, double> f_score;
QHash<SkyPoint const *, double> h_score;
kDebug() << "StarHopper is trying to compute a path from source: " << src.ra().toHMSString() << src.dec().toDMSString() << " to destination: " << dest.ra().toHMSString() << dest.dec().toDMSString() << "; a starhop of " << src.angularDistanceTo( &dest ).Degrees() << " degrees!";
oSet.append( &src );
g_score[ &src ] = 0;
h_score[ &src ] = src.angularDistanceTo( &dest ).Degrees()/fov;
f_score[ &src ] = h_score[ &src ];
while( !oSet.isEmpty() ) {
kDebug() << "Next step";
// Find the node with the lowest f_score value
SkyPoint const *curr_node = NULL;
double lowfscore = 1.0e8;
foreach( const SkyPoint *sp, oSet ) {
if( f_score[ sp ] < lowfscore ) {
lowfscore = f_score[ sp ];
curr_node = sp;
}
}
kDebug() << "Lowest fscore (vertex distance-plus-cost score) is " << lowfscore << " with coords: " << curr_node->ra().toHMSString() << curr_node->dec().toDMSString() << ". Considering this node now.";
if( curr_node == &dest || (curr_node != &src && h_score[ curr_node ] < 0.5) ) {
// We are at destination
reconstructPath( came_from[ curr_node ] );
kDebug() << "We've arrived at the destination! Yay! Result path count: " << result_path.count();
// Just a test -- try to print out useful instructions to the debug console. Once we make star hopper unexperimental, we should move this to some sort of a display
kDebug() << "Star Hopping Directions: ";
const SkyPoint *prevHop = start;
foreach( const StarObject *hopStar, result_path ) {
QString direction;
double pa; // should be 0 to 2pi
dms angDist = prevHop->angularDistanceTo( hopStar, &pa );
dms dmsPA;
dmsPA.setRadians( pa );
direction = KSUtils::toDirectionString( dmsPA );
kDebug() << " Slew " << angDist.Degrees() << " degrees " << direction << " to find a " << hopStar->spchar() << " star of mag " << hopStar->mag();
prevHop = hopStar;
}
kDebug() << " The destination is within a field-of-view";
return result_path;
}
void ObservingList::slotAddObject( SkyObject *obj, bool session, bool update ) {
bool addToWishList=true;
if( ! obj )
obj = ks->map()->clickedObject();
if( obj->name() == "star" ) {
KMessageBox::sorry(0, i18n( "Unnamed stars are not supported in the observing lists"));
return;
}
//First, make sure object is not already in the list
if ( obsList().contains( obj ) ) {
addToWishList = false;
if( ! session ) {
ks->statusBar()->changeItem( i18n( "%1 is already in your wishlist.", obj->name() ), 0 );
return;
}
}
if ( session && sessionList().contains( obj ) ) {
ks->statusBar()->changeItem( i18n( "%1 is already in the session plan.", obj->name() ), 0 );
return;
}
QString smag = "--";
if ( - 30.0 < obj->mag() && obj->mag() < 90.0 )
smag = QString::number( obj->mag(), 'g', 2 ); // The lower limit to avoid display of unrealistic comet magnitudes
SkyPoint p = obj->recomputeCoords( dt, geo );
//Insert object in the Wish List
if( addToWishList ) {
m_ObservingList.append( obj );
m_CurrentObject = obj;
QList<QStandardItem*> itemList;
QString ra, dec;
if(obj->name() == "star" ) {
ra = obj->ra0().toHMSString();
dec = obj->dec0().toDMSString();
}
else {
ra = p.ra().toHMSString();
dec = p.dec().toDMSString();
}
itemList << new QStandardItem( obj->translatedName() )
<< new QStandardItem( ra )
<< new QStandardItem( dec )
<< new QStandardItem( smag )
<< new QStandardItem( obj->typeName() );
m_Model->appendRow( itemList );
//Note addition in statusbar
ks->statusBar()->changeItem( i18n( "Added %1 to observing list.", obj->name() ), 0 );
ui->TableView->resizeColumnsToContents();
if( ! update ) slotSaveList();
}
//Insert object in the Session List
if( session ){
m_SessionList.append(obj);
dt.setTime( TimeHash.value( obj->name(), obj->transitTime( dt, geo ) ) );
dms lst(geo->GSTtoLST( dt.gst() ));
p.EquatorialToHorizontal( &lst, geo->lat() );
QList<QStandardItem*> itemList;
QString ra, dec, time = "--", alt = "--", az = "--";
QStandardItem *BestTime = new QStandardItem();
if(obj->name() == "star" ) {
ra = obj->ra0().toHMSString();
dec = obj->dec0().toDMSString();
BestTime->setData( QString( "--" ), Qt::DisplayRole );
}
else {
ra = p.ra().toHMSString();
dec = p.dec().toDMSString();
BestTime->setData( TimeHash.value( obj->name(), obj->transitTime( dt, geo ) ), Qt::DisplayRole );
alt = p.alt().toDMSString();
az = p.az().toDMSString();
}
// TODO: Change the rest of the parameters to their appropriate datatypes.
itemList << new QStandardItem( obj->translatedName() )
<< new QStandardItem( ra )
<< new QStandardItem( dec )
<< new QStandardItem( smag )
<< new QStandardItem( obj->typeName() )
<< BestTime
<< new QStandardItem( alt )
<< new QStandardItem( az );
m_Session->appendRow( itemList );
//Adding an object should trigger the modified flag
isModified = true;
ui->SessionView->resizeColumnsToContents();
//Note addition in statusbar
ks->statusBar()->changeItem( i18n( "Added %1 to session list.", obj->name() ), 0 );
}
setSaveImagesButton();
}
int main(int argc, char* argv[])
{
PRINT_VERSION_IF_ASKED(argc, argv);
if(argc != 6) {
cout << "Usage: " << argv[0] << " <output_file> <radius> <input_file> <catalog> <cache>\n";
cout << "Catalog must be in NATIVE format\n";
return -1;
}
out.open(argv[1]);
const double matchRadius = atof(argv[2]);
ifstream f(argv[3]);
Catalog *cat = Catalog::open(argv[4], "NATIVE");
ObservationCache cache(argv[5], "r");
cout << "Radius : " << matchRadius << "\"\n";
cout << "Catalog : " << argv[4] << "\n";
cout << "Cache : " << argv[5] << "\n";
ObservationCalculator oc;
vector<Asteroid> o;
vector<Observation> obsv;
int i;
// unidentified observation dummy object
Observation unmached;
unmached.name[0] = 0; unmached.ra = unmached.dec = unmached.ddec = unmached.dra = unmached.mag = 0;
Asteroid unmachedAst;
// header
out << "#run\tsloanId\tastorbId\ttime\tname\terrRa\terrDec\tra\tdec\tmag\tdra\tddec\ttra\ttswc\ttmag\ttdra\ttddec\tl\tb\tphi\n";
cout << setiosflags( ios::fixed );
MJD t2;
SkyPoint target;
double v, rowv, colw;
int sloanID, run;
double r_mag;
int plus = 0, minus = 0;
while(!f.eof()) {
f >> r_mag >> run >> sloanID >> t2 >> v >> rowv >> colw >> target.ra >> target.dec;
target.ra *= ctn::d2r; target.dec *= ctn::d2r;
double err = 1E5;
if(cache.getCandidates(obsv, t2, target, .2*ctn::d2r) > 0) {
// load Asteroids for all candidates
int *ids = new int[obsv.size()];
for(i = 0; i != obsv.size(); i++) ids[i] = obsv[i].id;
cat->read(o, ids, obsv.size());
delete [] ids;
// calculate exact position
oc.calculateObservations(obsv, t2, o, ObsFlags::pos | ObsFlags::vel, CalcFlags::twoBody);
// find best
int bestMatch;
for(i = 0; i != obsv.size(); i++) {
double d = target.distance(SkyPoint(obsv[i].ra, obsv[i].dec));
if(d < err) { bestMatch = i; err = d; }
}
// show our best candidate
err /= ctn::s2r;
if(err < matchRadius) {
double errRa, errDec;
errRa = (obsv[bestMatch].ra - target.ra) / ctn::s2r;
errDec = (obsv[bestMatch].dec - target.dec) / ctn::s2r;
printMatch(t2, errRa, errDec, &o[bestMatch], obsv[bestMatch], target, run, sloanID, rowv, colw, r_mag);
plus++;
}
}
// absolutely nothing was found
if(err >= matchRadius) {
printMatch(t2, 0, 0, &unmachedAst, unmached, target, run, sloanID, rowv, colw, r_mag);
minus++;
}
// progress info
if((plus + minus) % 50 == 0) {
cout << " [" << plus << "/" << minus << "/" << plus+minus << " : " << setprecision(1) << r_mag << "m]\n";
}
cout << "#"; cout.flush();
}
cout << "\nTotals (+/-/total) : " << plus << "/" << minus << "/" << plus+minus << "\n";
delete cat;
return 0;
}
Vector2f Projector::clipLineVec( SkyPoint *p1, SkyPoint *p2 ) const
{
/* ASSUMES p1 was not clipped but p2 was.
* Return the QPoint that barely clips in the line twixt p1 and p2.
*/
//TODO: iteration = ceil( 0.5*log2( w^2 + h^2) )??
// also possibly rewrite this
// --hdevalence
int iteration = 15; // For "perfect" clipping:
// 2^interations should be >= max pixels/line
bool isVisible = true; // so we start at midpoint
SkyPoint mid;
Vector2f oMid;
double x, y, z, dx, dy, dz, ra, dec;
int newx, newy, oldx, oldy;
oldx = oldy = -10000; // any old value that is not the first omid
toXYZ( p1, &x, &y, &z );
// -jbb printf("\np1: %6.4f %6.4f %6.4f\n", x, y, z);
toXYZ( p2, &dx, &dy, &dz );
// -jbb printf("p2: %6.4f %6.4f %6.4f\n", dx, dy, dz);
dx -= x;
dy -= y;
dz -= z;
// Successive approximation to point on line that just clips.
while(iteration-- > 0) {
dx *= .5;
dy *= .5;
dz *= .5;
if ( ! isVisible ) { // move back toward visible p1
x -= dx;
y -= dy;
z -= dz;
}
else { // move out toward clipped p2
x += dx;
y += dy;
z += dz;
}
// -jbb printf(" : %6.4f %6.4f %6.4f\n", x, y, z);
// [x, y, z] => [ra, dec]
ra = atan2( y, x );
dec = asin( z / sqrt(x*x + y*y + z*z) );
mid = SkyPoint( ra * 12. / dms::PI, dec * 180. / dms::PI );
mid.EquatorialToHorizontal( m_data->lst(), m_data->geo()->lat() );
oMid = toScreenVec( &mid, false, &isVisible );
//AND the result with checkVisibility to clip things going below horizon
isVisible &= checkVisibility(&mid);
newx = (int) oMid.x();
newy = (int) oMid.y();
// -jbb printf("new x/y: %4d %4d", newx, newy);
if ( (oldx == newx) && (oldy == newy) ) {
break;
}
oldx = newx;
oldy = newy;
}
return oMid;
}
QVector< Vector2f > EquirectangularProjector::groundPoly(SkyPoint* labelpoint, bool* drawLabel) const
{
float x0 = m_vp.width/2.;
float y0 = m_vp.width/2.;
if( m_vp.useAltAz ) {
float dX = m_vp.zoomFactor*M_PI;
float dY = m_vp.zoomFactor*M_PI;
SkyPoint belowFocus;
belowFocus.setAz( m_vp.focus->az().Degrees() );
belowFocus.setAlt( 0.0 );
Vector2f obf = toScreenVec( &belowFocus, false );
//If the horizon is off the bottom edge of the screen,
//we can return immediately
if ( obf.y() > m_vp.height ) {
if( drawLabel )
*drawLabel = false;
return QVector<Vector2f>();
}
//We can also return if the horizon is off the top edge,
//as long as the ground poly is not being drawn
if ( obf.y() < 0. && m_vp.fillGround == false ) {
if( drawLabel )
*drawLabel = false;
return QVector<Vector2f>();
}
QVector<Vector2f> ground;
//Construct the ground polygon, which is a simple rectangle in this case
ground << Vector2f( x0 - dX, obf.y() )
<< Vector2f( x0 + dX, obf.y() )
<< Vector2f( x0 + dX, y0 + dY )
<< Vector2f( x0 - dX, y0 + dY );
if( labelpoint ) {
QPointF pLabel( x0 -dX -50., obf.y() );
KStarsData *data = KStarsData::Instance();
*labelpoint = fromScreen(pLabel, data->lst(), data->geo()->lat());
}
if( drawLabel )
*drawLabel = true;
return ground;
} else {
float dX = m_vp.zoomFactor*M_PI/2;
float dY = m_vp.zoomFactor*M_PI/2;
QVector<Vector2f> ground;
static const QString horizonLabel = i18n("Horizon");
float marginLeft, marginRight, marginTop, marginBot;
SkyLabeler::Instance()->getMargins( horizonLabel, &marginLeft, &marginRight,
&marginTop, &marginBot );
double daz = 90.;
double faz = m_vp.focus->az().Degrees();
double az1 = faz -daz;
double az2 = faz +daz;
bool allGround = true;
bool allSky = true;
double inc = 1.0;
//Add points along horizon
for(double az = az1; az <= az2 + inc; az += inc) {
SkyPoint p = pointAt(az);
bool visible = false;
Vector2f o = toScreenVec(&p, false, &visible);
if( visible ) {
ground.append( o );
//Set the label point if this point is onscreen
if ( labelpoint && o.x() < marginRight && o.y() > marginTop && o.y() < marginBot )
*labelpoint = p;
if ( o.y() > 0. ) allGround = false;
if ( o.y() < m_vp.height ) allSky = false;
}
}
if( allSky ) {
if( drawLabel)
*drawLabel = false;
return QVector<Vector2f>();
}
if( allGround ) {
ground.clear();
ground.append( Vector2f( x0 - dX, y0 - dY ) );
ground.append( Vector2f( x0 + dX, y0 - dY ) );
ground.append( Vector2f( x0 + dX, y0 + dY ) );
ground.append( Vector2f( x0 - dX, y0 + dY ) );
if( drawLabel)
*drawLabel = false;
return ground;
}
if( labelpoint ) {
QPointF pLabel( x0 -dX -50., ground.last().y() );
KStarsData *data = KStarsData::Instance();
*labelpoint = fromScreen(pLabel, data->lst(), data->geo()->lat());
}
if( drawLabel )
*drawLabel = true;
//Now add points along the ground
ground.append( Vector2f( x0 + dX, ground.last().y() ) );
ground.append( Vector2f( x0 + dX, y0 + dY ) );
ground.append( Vector2f( x0 - dX, y0 + dY ) );
ground.append( Vector2f( x0 - dX, ground.first().y() ) );
return ground;
}
}
void CatalogDB::GetAllObjects(const QString &catalog,
QList< SkyObject* > &sky_list,
QList < QPair <int, QString> > &object_names,
CatalogComponent *catalog_ptr) {
sky_list.clear();
QString selected_catalog = QString::number(FindCatalog(catalog));
skydb_.open();
QSqlQuery get_query(skydb_);
get_query.prepare("SELECT Epoch, Type, RA, Dec, Magnitude, Prefix, "
"IDNumber, LongName, MajorAxis, MinorAxis, "
"PositionAngle, Flux FROM ObjectDesignation JOIN DSO "
"JOIN Catalog WHERE Catalog.id = :catID AND "
"ObjectDesignation.id_Catalog = Catalog.id AND "
"ObjectDesignation.UID_DSO = DSO.UID");
get_query.bindValue("catID", selected_catalog);
// kWarning() << get_query.lastQuery();
// kWarning() << get_query.lastError();
// kWarning() << FindCatalog(catalog);
if (!get_query.exec()) {
kWarning() << get_query.lastQuery();
kWarning() << get_query.lastError();
}
while (get_query.next()) {
int cat_epoch = get_query.value(0).toInt();
unsigned char iType = get_query.value(1).toInt();
dms RA(get_query.value(2).toDouble());
dms Dec(get_query.value(3).toDouble());
float mag = get_query.value(4).toFloat();
QString catPrefix = get_query.value(5).toString();
int id_number_in_catalog = get_query.value(6).toInt();
QString lname = get_query.value(7).toString();
float a = get_query.value(8).toFloat();
float b = get_query.value(9).toFloat();
float PA = get_query.value(10).toFloat();
float flux = get_query.value(11).toFloat();
QString name = catPrefix + ' ' + QString::number(id_number_in_catalog);
SkyPoint t;
t.set(RA, Dec);
if (cat_epoch == 1950) {
// Assume B1950 epoch
t.B1950ToJ2000(); // t.ra() and t.dec() are now J2000.0
// coordinates
} else if (cat_epoch == 2000) {
// Do nothing
{ }
} else {
// FIXME: What should we do?
// FIXME: This warning will be printed for each line in the
// catalog rather than once for the entire catalog
kWarning() << "Unknown epoch while dealing with custom "
"catalog. Will ignore the epoch and assume"
" J2000.0";
}
RA = t.ra();
Dec = t.dec();
if (iType == 0) { // Add a star
StarObject *o = new StarObject(RA, Dec, mag, lname);
sky_list.append(o);
} else { // Add a deep-sky object
DeepSkyObject *o = new DeepSkyObject(iType, RA, Dec, mag,
name, QString(), lname,
catPrefix, a, b, -PA);
o->setFlux(flux);
o->setCustomCatalog(catalog_ptr);
sky_list.append(o);
// Add name to the list of object names
if (!name.isEmpty()) {
object_names.append(qMakePair<int,QString>(iType, name));
}
}
if (!lname.isEmpty() && lname != name) {
object_names.append(qMakePair<int,QString>(iType, lname));
}
}
get_query.clear();
skydb_.close();
}
void modCalcGalCoord::processLines( QTextStream &istream ) {
// we open the output file
// QTextStream istream(&fIn);
const QString outputFileName = OutputFileBoxBatch->url().toLocalFile();
QFile fOut( outputFileName );
fOut.open(QIODevice::WriteOnly);
QTextStream ostream(&fOut);
QString line;
QChar space = ' ';
int i = 0;
SkyPoint sp;
dms raB, decB, galLatB, galLongB;
QString epoch0B;
while ( ! istream.atEnd() ) {
line = istream.readLine();
line.trimmed();
//Go through the line, looking for parameters
QStringList fields = line.split( ' ' );
i = 0;
// Input coords are galactic coordinates:
if (galInputCoords) {
// Read Galactic Longitude and write in ostream if corresponds
if(galLongCheckBatch->isChecked() ) {
galLongB = dms::fromString( fields[i], true);
i++;
} else
galLongB = galLongBoxBatch->createDms(true);
if ( allRadioBatch->isChecked() )
ostream << galLongB.toDMSString() << space;
else
if(galLongCheckBatch->isChecked() )
ostream << galLongB.toDMSString() << space;
// Read Galactic Latitude and write in ostream if corresponds
if(galLatCheckBatch->isChecked() ) {
galLatB = dms::fromString( fields[i], true);
i++;
} else
galLatB = galLatBoxBatch->createDms(true);
if ( allRadioBatch->isChecked() )
ostream << galLatB.toDMSString() << space;
else
if(galLatCheckBatch->isChecked() )
ostream << galLatB.toDMSString() << space;
sp = SkyPoint ();
sp.GalacticToEquatorial1950(&galLongB, &galLatB);
ostream << sp.ra().toHMSString() << space << sp.dec().toDMSString() << epoch0B << endl;
// Input coords. are equatorial coordinates:
} else {
// Read RA and write in ostream if corresponds
if(raCheckBatch->isChecked() ) {
raB = dms::fromString( fields[i],false);
i++;
} else
raB = raBoxBatch->createDms(false);
if ( allRadioBatch->isChecked() )
ostream << raB.toHMSString() << space;
else
if(raCheckBatch->isChecked() )
ostream << raB.toHMSString() << space;
// Read DEC and write in ostream if corresponds
if(decCheckBatch->isChecked() ) {
decB = dms::fromString( fields[i], true);
i++;
} else
decB = decBoxBatch->createDms();
if ( allRadioBatch->isChecked() )
ostream << decB.toDMSString() << space;
else
if(decCheckBatch->isChecked() )
ostream << decB.toDMSString() << space;
// Read Epoch and write in ostream if corresponds
if(epochCheckBatch->isChecked() ) {
epoch0B = fields[i];
i++;
} else
epoch0B = epochBoxBatch->text();
if ( allRadioBatch->isChecked() )
ostream << epoch0B << space;
else
if(epochCheckBatch->isChecked() )
ostream << epoch0B << space;
sp = SkyPoint (raB, decB);
sp.J2000ToB1950();
sp.Equatorial1950ToGalactic(galLongB, galLatB);
ostream << galLongB.toDMSString() << space << galLatB.toDMSString() << endl;
}
}
fOut.close();
}