C++ KStarsData::ut方法代码示例

void Ecliptic::drawCompassLabels() {
    const Projector*  proj = SkyMap::Instance()->projector();
    KStarsData*       data = KStarsData::Instance();
    SkyLabeler* skyLabeler = SkyLabeler::Instance();
    // Set proper color for labels
    QColor color( data->colorScheme()->colorNamed( "CompassColor" ) );
    skyLabeler->setPen( QPen( QBrush(color), 1, Qt::SolidLine) );

    KSNumbers num( data->ut().djd() );
    dms elat(0.0), elng(0.0);
    QString label;
    for( int ra = 0; ra < 23; ra += 6 ) {
        elng.setH( ra );
        SkyPoint o;
        o.setFromEcliptic( num.obliquity(), elng, elat );
        o.setRA0(  o.ra()  );
        o.setDec0( o.dec() );
        o.EquatorialToHorizontal( data->lst(), data->geo()->lat() );
        bool visible;
        QPointF cpoint = proj->toScreen( &o, false, &visible );
        if( visible && proj->checkVisibility( &o ) ) {
            label.setNum( o.ra().reduce().Degrees() );
            skyLabeler->drawGuideLabel( cpoint, label, 0.0 );
        }
    }
}

Ecliptic::Ecliptic(SkyComposite *parent ) :
        LineListIndex( parent, i18n("Ecliptic") ),
        m_label( name() )
{
    KStarsData *data = KStarsData::Instance();
    KSNumbers num( data->ut().djd() );
    dms elat(0.0), elng(0.0);

    const double eps    =   0.1;
    const double minRa  =   0.0;
    const double maxRa  =  23.0;
    const double dRa    =   2.0;
    const double dRa2   =  2. / 5.;

    for(double ra = minRa; ra < maxRa; ra += dRa ) {
        LineList* lineList = new LineList();
        for(double ra2 = ra; ra2 <= ra + dRa + eps; ra2 += dRa2 ) {
            elng.setH( ra2 );
            SkyPoint* o = new SkyPoint();
            o->setFromEcliptic( num.obliquity(), elng, elat );
            o->setRA0( o->ra().Hours() );
            o->setDec0( o->dec().Degrees() );
            o->EquatorialToHorizontal( data->lst(), data->geo()->lat() );
            lineList->append( o );
        }
        appendLine( lineList );
    }
}

int main(int argc, char *argv[])
{
    KAboutData aboutData( "kstars", 0, ki18n("KStars"),
                          KSTARS_VERSION, ki18n(description), KAboutData::License_GPL,
                          ki18n("(c) 2001-2012, The KStars Team"), ki18n(notice), "http://edu.kde.org/kstars");
    aboutData.addAuthor(ki18n("Jason Harris"),KLocalizedString(), "[email protected]", "http://www.30doradus.org");
    aboutData.addAuthor(ki18n("Jasem Mutlaq"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("James Bowlin"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Pablo de Vicente"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Thomas Kabelmann"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Heiko Evermann"),KLocalizedString(), "[email protected]", "http://www.evermann.de");
    aboutData.addAuthor(ki18n("Carsten Niehaus"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Mark Hollomon"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Alexey Khudyakov"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Médéric Boquien"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Akarsh Simha"), KLocalizedString(), "[email protected]", "http://www.ph.utexas.edu/~asimha");
    aboutData.addAuthor(ki18n("Jérôme Sonrier"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Prakash Mohan"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Victor Cărbune"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Henry de Valence"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Samikshan Bairagya"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Rafał Kułaga"), KLocalizedString(), "[email protected]");
    aboutData.addAuthor(ki18n("Rishab Arora"), KLocalizedString(), "[email protected]");

    aboutData.addCredit(ki18n("Valery Kharitonov"), ki18n("Converted labels containing technical terms to links to documentation") );
    aboutData.addCredit(ki18n("Ana-Maria Constantin"), ki18n("Technical documentation on Astronomy and KStars") );
    aboutData.addCredit(ki18n("Andrew Stepanenko"), ki18n("Guiding code based on lin_guider") );
    aboutData.addCredit(ki18n("Nuno Pinheiro"), ki18n("Artwork") );

    KCmdLineArgs::init( argc, argv, &aboutData );

    KCmdLineOptions options;
    options.add("!dump", ki18n( "Dump sky image to file" ));
    options.add("script ", ki18n( "Script to execute" ));
    options.add("width ", ki18n( "Width of sky image" ), "640");
    options.add("height ", ki18n( "Height of sky image" ), "480");
    options.add("filename ", ki18n( "Filename for sky image" ), "kstars.png");
    options.add("date ", ki18n( "Date and time" ));
    options.add("!paused", ki18n( "Start with clock paused" ));
    KCmdLineArgs::addCmdLineOptions( options ); // Add our own options.
    KCmdLineArgs *args = KCmdLineArgs::parsedArgs();

    KApplication a;

    if ( args->isSet( "dump" ) ) {
        kDebug() << i18n( "Dumping sky image" );

        //parse filename and image format
        const char* format = "PNG";
        QString fname = args->getOption( "filename" );
        QString ext = fname.mid( fname.lastIndexOf(".")+1 );
        if ( ext.toLower() == "png" ) { format = "PNG"; }
        else if ( ext.toLower() == "jpg" || ext.toLower() == "jpeg" ) { format = "JPG"; }
        else if ( ext.toLower() == "gif" ) { format = "GIF"; }
        else if ( ext.toLower() == "pnm" ) { format = "PNM"; }
        else if ( ext.toLower() == "bmp" ) { format = "BMP"; }
        else { kWarning() << i18n( "Could not parse image format of %1; assuming PNG.", fname ) ; }

        //parse width and height
        bool ok(false);
        int w(0), h(0);
        w = args->getOption( "width" ).toInt( &ok );
        if ( ok ) h =  args->getOption( "height" ).toInt( &ok );
        if ( !ok ) {
            kWarning() << "Unable to parse arguments: " ;
            kWarning() << "Width: " << args->getOption( "width" )
            << "  Height: " << args->getOption( "height" ) << endl;
            return 1;
        }

        KStarsData *dat = KStarsData::Create();
        QObject::connect( dat, SIGNAL( progressText(QString) ), dat, SLOT( slotConsoleMessage(QString) ) );
        dat->initialize();

        //Set Geographic Location
        dat->setLocationFromOptions();

        //Set color scheme
        dat->colorScheme()->loadFromConfig();

        //set clock now that we have a location:
        //Check to see if user provided a date/time string.  If not, use current CPU time
        QString datestring = args->getOption( "date" );
        KStarsDateTime kdt;
        if ( ! datestring.isEmpty() ) {
            if ( datestring.contains( "-" ) ) { //assume ISODate format
                if ( datestring.contains( ":" ) ) { //also includes time
                    kdt = KDateTime::fromString( datestring, KDateTime::ISODate );
                } else { //string probably contains date only
                    kdt.setDate( QDate::fromString( datestring, Qt::ISODate ) );
                    kdt.setTime( QTime( 0, 0, 0 ) );
                }
            } else { //assume Text format for date string
                kdt = dat->geo()->LTtoUT( KDateTime::fromString( datestring, KDateTime::QtTextDate ) );
            }

            if ( ! kdt.isValid() ) {
                kWarning() << i18n( "Using CPU date/time instead." ) ;

                kdt = KStarsDateTime::currentUtcDateTime();
//.........这里部分代码省略.........