void RegionCASA::_getWorldVertices(std::vector<casa::Quantity>& x, std::vector<casa::Quantity>& y,
const casa::CoordinateSystem& csys,
const casa::Vector<casa::MDirection>& directions ) const {
const casa::IPosition dirAxes = csys.directionAxesNumbers();
casa::String xUnit = csys.worldAxisUnits()[dirAxes[0]];
casa::String yUnit = csys.worldAxisUnits()[dirAxes[1]];
int directionCount = directions.size();
x.resize( directionCount );
y.resize( directionCount );
for (int i = 0; i < directionCount; i++) {
x[i] = casa::Quantity(directions[i].getAngle(xUnit).getValue(xUnit)[0], xUnit);
y[i] = casa::Quantity(directions[i].getAngle(yUnit).getValue(yUnit)[1], yUnit);
}
}
std::vector<std::pair<double,double> >
RegionCASA::_getPixelVertices( const casa::AnnotationBase::Direction& corners,
const casa::CoordinateSystem& csys, const casa::Vector<casa::MDirection>& directions ) const {
std::vector<casa::Quantity> xx, xy;
_getWorldVertices(xx, xy, csys, directions );
casa::Vector<casa::Double> world = csys.referenceValue();
const casa::IPosition dirAxes = csys.directionAxesNumbers();
casa::String xUnit = csys.worldAxisUnits()[dirAxes[0]];
casa::String yUnit = csys.worldAxisUnits()[dirAxes[1]];
int cornerCount = corners.size();
std::vector<std::pair<double,double> > pixelVertices( cornerCount );
for (int i=0; i<cornerCount; i++) {
world[dirAxes[0]] = xx[i].getValue(xUnit);
world[dirAxes[1]] = xy[i].getValue(yUnit);
casa::Vector<casa::Double> pixel;
csys.toPixel(pixel, world);
pixelVertices[i]= std::pair<double,double>( pixel[dirAxes[0]], pixel[dirAxes[1]] );
}
return pixelVertices;
}
casa::Vector<casa::Double> ImageRegionGenerator::_toWorld( const casa::CoordinateSystem& cSys,
double x, double y, bool* successful ){
int pixelCount = cSys.nPixelAxes();
casa::Vector<casa::Double> pixelPt( pixelCount, 0 );
casa::Vector<casa::Double> worldPt;
if ( pixelCount >= 2 ){
pixelPt[0] = x;
pixelPt[1] = y;
try {
worldPt = cSys.toWorld( pixelPt );
*successful = true;
}
catch( const casa::AipsError& error ){
qDebug() << error.getMesg().c_str();
*successful = false;
}
}
else {
*successful = false;
}
return worldPt;
}
std::vector< std::shared_ptr<Carta::Lib::RegionInfo> >
RegionCASA::_loadRegion( const QString & fname, std::shared_ptr<Carta::Lib::Image::ImageInterface> imagePtr ){
std::vector<std::shared_ptr<Carta::Lib::RegionInfo> > regionInfos;
casa::String fileName( fname.toStdString().c_str() );
CCImageBase * base = dynamic_cast<CCImageBase*>( imagePtr.get() );
if ( base ){
Carta::Lib::Image::MetaDataInterface::SharedPtr metaPtr = base->metaData();
CCMetaDataInterface* metaData = dynamic_cast<CCMetaDataInterface*>(metaPtr.get());
if ( metaData ){
std::shared_ptr<casa::CoordinateSystem> cs = metaData->getCoordinateSystem();
std::vector < int > dimensions = imagePtr->dims();
int dimCount = dimensions.size();
casa::IPosition shape(dimCount);
for ( int i = 0; i < dimCount; i++ ){
shape[i] = dimensions[i];
}
casa::RegionTextList regionList( fileName, *cs.get(), shape );
casa::Vector<casa::AsciiAnnotationFileLine> aaregions = regionList.getLines();
int regionCount = aaregions.size();
for ( int i = 0; i < regionCount; i++ ){
if ( aaregions[i].getType() != casa::AsciiAnnotationFileLine::ANNOTATION ){
continue;
}
casa::CountedPtr<const casa::AnnotationBase> ann = aaregions[i].getAnnotationBase();
std::shared_ptr<Carta::Lib::RegionInfo> rInfo( new Carta::Lib::RegionInfo());
casa::Vector<casa::MDirection> directions = ann->getConvertedDirections();
casa::AnnotationBase::Direction points = ann->getDirections();
std::vector<std::pair<double,double> > corners =
_getPixelVertices( points, *cs.get(), directions );
int annType = ann->getType();
switch( annType ){
case casa::AnnotationBase::RECT_BOX : {
_addCorners( rInfo, corners );
rInfo->setRegionType( Carta::Lib::RegionInfo::RegionType::Polygon );
}
break;
case casa::AnnotationBase::ELLIPSE : {
rInfo->setRegionType( Carta::Lib::RegionInfo::RegionType::Ellipse );
const casa::AnnEllipse* ellipse = dynamic_cast<const casa::AnnEllipse*>( ann.get() );
casa::Int directionIndex = cs->findCoordinate(casa::Coordinate::Type::DIRECTION );
casa::MDirection::Types csType = casa::MDirection::EXTRA;
if ( directionIndex >= 0 ){
casa::DirectionCoordinate dCoord = cs->directionCoordinate(directionIndex);
csType = dCoord.directionType();
}
if ( csType == casa::MDirection::EXTRA ){
qWarning( "Unable to complete elliptical region, unspecified direction type.");
continue;
}
// convert to the viewer's world coordinates... <mdirection>
casa::MDirection dir_center = casa::MDirection::Convert(ellipse->getCenter( ), csType)();
casa::Vector<double> center = dir_center.getAngle("rad").getValue( );
// 90 deg around 0 & 180 deg
const double major_radius = ellipse->getSemiMajorAxis().getValue("rad");
const double minor_radius = ellipse->getSemiMinorAxis().getValue("rad");
const double pos_angle = ellipse->getPositionAngle( ).getValue("deg");
const bool x_is_major = ((pos_angle > 45.0 && pos_angle < 135.0) ||
(pos_angle > 225.0 && pos_angle < 315.0));
const double xradius = (x_is_major ? major_radius : minor_radius);
const double yradius = (x_is_major ? minor_radius : major_radius);
casa::Vector<casa::Double> world0(2, 0);
casa::Vector<casa::Double> world1(2, 0);
world0[0] = center[0] - xradius;
world0[1] = center[1] - yradius;
world1[0] = center[0] + xradius;
world1[1] = center[1] + yradius;
casa::Vector<casa::Double> pixel0(2, 0);
casa::Vector<casa::Double> pixel1(2, 0);
std::vector<std::pair<double,double> > ellipseCorners(2);
const casa::CoordinateSystem ellipsCoord = ellipse->getCsys();
bool firstConvert = ellipsCoord.directionCoordinate().toPixel( pixel0, world0 );
bool secondConvert = ellipsCoord.directionCoordinate().toPixel( pixel1, world1 );
if ( firstConvert && secondConvert ){
ellipseCorners[0] = std::pair<double,double>( pixel0[0], pixel0[1] );
ellipseCorners[1] = std::pair<double,double>( pixel1[0], pixel1[1] );
_addCorners( rInfo, ellipseCorners );
}
else {
qDebug() << "Problem storing ellipse corners: "<<ellipsCoord.errorMessage().c_str();
}
}
break;
case casa::AnnotationBase::POLYGON : {
_addCorners( rInfo, corners );
rInfo->setRegionType( Carta::Lib::RegionInfo::RegionType::Polygon );
}
break;
//Point????
case casa::AnnotationBase::SYMBOL : {
_addCorners( rInfo, corners );
rInfo->setRegionType( Carta::Lib::RegionInfo::RegionType::Polygon );
}
break;
}
regionInfos.push_back( rInfo );
}
}
}
return regionInfos;
}
std::pair<casa::Vector<casa::Quantity>,casa::Vector<casa::Quantity> > ImageRegionGenerator::_getEllipsePositionRadii(
Carta::Lib::Regions::Ellipse* ellipse, const casa::CoordinateSystem &cs ){
QRectF outlineBox = ellipse->outlineBox();
QPointF topLeftPt = outlineBox.topLeft();
QPointF centerPt = outlineBox.center();
bool validCenter = false;
casa::Vector<casa::Double> centerWorld = _toWorld( cs, centerPt.x(), centerPt.y(), &validCenter );
bool validTopLeft = false;
casa::Vector<casa::Double> topLeft = _toWorld( cs, topLeftPt.x(), topLeftPt.y(), &validTopLeft );
casa::Vector<casa::Quantum<casa::Double> > qcenter, qtlc;
casa::Vector<casa::Quantity> radii_(2);
if ( validCenter && validTopLeft ){
qcenter.resize(2);
qtlc.resize(2);
casa::String units( RAD_UNITS.toStdString().c_str() );
qcenter[0] = casa::Quantum<casa::Double>(centerWorld[0], units);
qcenter[1] = casa::Quantum<casa::Double>(centerWorld[1], units);
qtlc[0] = casa::Quantum<casa::Double>(topLeft[0], units);
qtlc[1] = casa::Quantum<casa::Double>(topLeft[1], units);
int directionIndex = cs.directionCoordinateNumber();
casa::MDirection::Types cccs = casa::MDirection::N_Types;
if ( directionIndex < 0 ){
// no direction coordinate was found...
double c0 = qcenter[0].getValue();
double lc0 = qtlc[0].getValue();
double c1 = qcenter[1].getValue();
double lc1 = qtlc[1].getValue();
radii_[0] = qAbs( c0 - lc0 );
radii_[1] = qAbs( c1 - lc1 );
}
else {
cccs = cs.directionCoordinate( directionIndex).directionType( true );
// a direction coordinate was found...
casa::Vector<casa::Double> center_rad(2);
center_rad[0] = qcenter[0].getValue( units );
center_rad[1] = qcenter[1].getValue( units );
casa::MDirection mdcenter( casa::Quantum<casa::Vector<casa::Double> > (center_rad,units), cccs );
casa::Vector<casa::Double> tlc_rad_x(2);
tlc_rad_x[0] = qtlc[0].getValue( units);
tlc_rad_x[1] = qcenter[1].getValue( units );
casa::MDirection mdtlc_x( casa::Quantum<casa::Vector<casa::Double> >(tlc_rad_x,units),cccs );
casa::Vector<casa::Double> tlc_rad_y(2);
tlc_rad_y[0] = qcenter[0].getValue(units);
tlc_rad_y[1] = qtlc[1].getValue(units);
casa::MDirection mdtlc_y( casa::Quantum<casa::Vector<casa::Double> >(tlc_rad_y,units),cccs );
double xdistance = mdcenter.getValue( ).separation(mdtlc_x.getValue( ));
double ydistance = mdcenter.getValue( ).separation(mdtlc_y.getValue( ));
radii_[0] = casa::Quantity(xdistance, units);
radii_[1] = casa::Quantity(ydistance, units);
}
}
return std::make_pair(qcenter,radii_);
}
