void SkyQPainter::drawSkyPolygon(LineList* list, bool forceClip)
{
bool isVisible, isVisibleLast;
SkyList *points = list->points();
QPolygonF polygon;
if (forceClip == false)
{
for ( int i = 0; i < points->size(); ++i )
{
polygon << m_proj->toScreen( points->at( i ), false, &isVisibleLast);
isVisible |= isVisibleLast;
}
// If 1+ points are visible, draw it
if ( polygon.size() && isVisible)
drawPolygon(polygon);
return;
}
SkyPoint* pLast = points->last();
QPointF oLast = m_proj->toScreen( pLast, true, &isVisibleLast );
// & with the result of checkVisibility to clip away things below horizon
isVisibleLast &= m_proj->checkVisibility(pLast);
for ( int i = 0; i < points->size(); ++i ) {
SkyPoint* pThis = points->at( i );
QPointF oThis = m_proj->toScreen( pThis, true, &isVisible );
// & with the result of checkVisibility to clip away things below horizon
isVisible &= m_proj->checkVisibility(pThis);
if ( isVisible && isVisibleLast ) {
polygon << oThis;
} else if ( isVisibleLast ) {
QPointF oMid = m_proj->clipLine( pLast, pThis );
polygon << oMid;
} else if ( isVisible ) {
QPointF oMid = m_proj->clipLine( pThis, pLast );
polygon << oMid;
polygon << oThis;
}
pLast = pThis;
oLast = oThis;
isVisibleLast = isVisible;
}
if ( polygon.size() )
drawPolygon(polygon);
}
void SkyQPainter::drawSkyPolyline(LineList* list, SkipList* skipList, LineListLabel* label)
{
SkyList *points = list->points();
bool isVisible, isVisibleLast;
QPointF oLast = m_proj->toScreen( points->first(), true, &isVisibleLast );
// & with the result of checkVisibility to clip away things below horizon
isVisibleLast &= m_proj->checkVisibility( points->first() );
QPointF oThis, oThis2;
for ( int j = 1 ; j < points->size() ; j++ ) {
SkyPoint* pThis = points->at( j );
oThis2 = oThis = m_proj->toScreen( pThis, true, &isVisible );
// & with the result of checkVisibility to clip away things below horizon
isVisible &= m_proj->checkVisibility(pThis);
bool doSkip = false;
if( skipList ) {
doSkip = skipList->skip(j);
}
if ( !doSkip ) {
if ( isVisible && isVisibleLast ) {
drawLine( oLast, oThis );
if ( label )
label->updateLabelCandidates( oThis.x(), oThis.y(), list, j );
}
}
oLast = oThis2;
isVisibleLast = isVisible;
}
}
// Don't precess the points, just account for the Earth's rotation
void NoPrecessIndex::JITupdate( LineList* lineList )
{
KStarsData *data = KStarsData::Instance();
lineList->updateID = data->updateID();
SkyList* points = lineList->points();
for (int i = 0; i < points->size(); i++ ) {
points->at( i )->EquatorialToHorizontal( data->lst(), data->geo()->lat() );
}
}
void SkyQPainter::drawSkyPolyline(LineList* list, SkipList* skipList, LineListLabel* label)
{
SkyList *points = list->points();
bool isVisible, isVisibleLast;
QPointF oLast = m_proj->toScreen( points->first(), true, &isVisibleLast );
// & with the result of checkVisibility to clip away things below horizon
isVisibleLast &= m_proj->checkVisibility( points->first() );
QPointF oThis, oThis2;
for ( int j = 1 ; j < points->size() ; j++ ) {
SkyPoint* pThis = points->at( j );
oThis2 = oThis = m_proj->toScreen( pThis, true, &isVisible );
// & with the result of checkVisibility to clip away things below horizon
isVisible &= m_proj->checkVisibility(pThis);
bool doSkip = false;
if( skipList ) {
doSkip = skipList->skip(j);
}
bool pointsVisible = false;
//Temporary solution to avoid random lines in Gnomonic projection and draw lines up to horizon
if(SkyMap::Instance()->projector()->type() == Projector::Gnomonic) {
if ( isVisible && isVisibleLast ) pointsVisible = true;
} else {
if ( isVisible || isVisibleLast ) pointsVisible = true;
}
if ( !doSkip ) {
if(pointsVisible) {
drawLine( oLast, oThis );
if ( label )
label->updateLabelCandidates( oThis.x(), oThis.y(), list, j );
}
}
oLast = oThis2;
isVisibleLast = isVisible;
}
}