void SatellitesMSCItem::update()
{
if( m_missionStart.isValid() ) {
setVisible( ( m_clock->dateTime() > m_missionStart ) );
}
if( m_missionEnd.isValid() ) {
setVisible( ( m_clock->dateTime() < m_missionEnd ) );
}
if( !isEnabled() || !isVisible() ) {
return;
}
double period = 24 * 3600 / m_n0;
QDateTime startTime = m_clock->dateTime().addSecs( - period / 2. );
QDateTime endTime = startTime.addSecs( period );
m_track->removeBefore( startTime );
m_track->removeAfter( endTime );
double step = period / 500.;
// FIXME update track only if orbit is visible
for( double i = startTime.toTime_t(); i < endTime.toTime_t(); i += step ) {
if ( i >= m_track->firstWhen().toTime_t() ) {
i = m_track->lastWhen().toTime_t() + step;
}
addTrackPointAt( QDateTime::fromTime_t( i ) );
}
addTrackPointAt( m_clock->dateTime() );
}
void SatellitesMSCItem::update()
{
if( m_missionStart.isValid() ) {
setVisible( ( m_clock->dateTime() > m_missionStart ) );
}
if( m_missionEnd.isValid() ) {
setVisible( ( m_clock->dateTime() < m_missionEnd ) );
}
if( !isEnabled() || !isVisible() ) {
return;
}
QDateTime t = m_clock->dateTime();
QDateTime endTime = t;
if( isTrackVisible() ) {
t = t.addSecs( - m_period / 2. );
endTime = t.addSecs( m_period );
m_track->removeBefore( t );
m_track->removeAfter( endTime );
if( m_track->firstWhen().isValid() && m_track->firstWhen() < t) {
t = m_track->firstWhen().addSecs( m_step_secs );
}
for(; t < endTime; t = t.addSecs(m_step_secs)) {
addTrackPointAt( t );
}
} else {
m_track->clear();
}
addTrackPointAt( m_clock->dateTime() );
}