AnnCenterBox.h

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#ifndef ANNOTATIONS_ANNCENTERBOX_H
#define ANNOTATIONS_ANNCENTERBOX_H

#include <casa/aips.h>
#include <imageanalysis/Annotations/AnnPolygon.h>

namespace casa {

// <summary>
// This class represents a annotation for rectangular (in position coordinates) region specified
// in an ascii region file as proposed in CAS-2285. It is specified by its center position
// and side widths.
// </summary>
// <author>Dave Mehringer</author>
// <use visibility=export>
// <reviewed reviewer="" date="yyyy/mm/dd" tests="" demos="">
// </reviewed>
// <prerequisite>

// </prerequisite>

// <etymology>
// Holds the specification of an annotation of a rectangular region as specified in ASCII format.
// Specified by center position and widths of sides.
// </etymology>

// <synopsis>
// This class represents an annotation of rectangular region in coordinate space specified by
// center and widths of sides. In general, in order
// to preserve the region through a rotation (eg from one coordinate frame to another), all four corners
// must be tracked through the rotation. Hence, this region is effectively a four corner polygon.
// </synopsis>


class AnnCenterBox: public AnnPolygon {

public:

        AnnCenterBox(
                const casacore::Quantity& centerx,
                const casacore::Quantity& centery,
                const casacore::Quantity& xwidth,
                const casacore::Quantity& ywidth,
                const casacore::String& dirRefFrameString,
                const casacore::CoordinateSystem& csys,
                const casacore::IPosition& imShape,
                const casacore::Quantity& beginFreq,
                const casacore::Quantity& endFreq,
                const casacore::String& freqRefFrameString,
                const casacore::String& dopplerString,
                const casacore::Quantity& restfreq,
                const casacore::Vector<casacore::Stokes::StokesTypes> stokes,
                const casacore::Bool annotationOnly,
                const casacore::Bool requireImageRegion=true
        );

        // Simplified constructor.
        // all frequencies are used (these can be set after construction).
        // centerx and centery
        // must be in the same frame as the csys direction coordinate.
        // is a region (not just an annotation), although this value can be changed after
        // construction.
        AnnCenterBox(
                const casacore::Quantity& centerx,
                const casacore::Quantity& centery,
                const casacore::Quantity& xwidth,
                const casacore::Quantity& ywidth,
                const casacore::CoordinateSystem& csys,
                const casacore::IPosition& imShape,
                const casacore::Vector<casacore::Stokes::StokesTypes>& stokes,
                const casacore::Bool requireImageRegion=true
        );

        // implicit copy constructor and destructor are fine

        AnnCenterBox& operator=(const AnnCenterBox& other);

        std::ostream& print(std::ostream &os) const;

private:
        casacore::Quantity _inpXCenter, _inpYCenter, _inpXWidth, _inpYWidth;

};

}

#endif /* ASCIICENTERBOXREGION_H_ */