AnnCenterBox.h

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#ifndef ANNOTATIONS_ANNCENTERBOX_H
#define ANNOTATIONS_ANNCENTERBOX_H

#include <casa/aips.h>
#include <imageanalysis/Annotations/AnnRegion.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.
// </synopsis>


class AnnCenterBox: public AnnRegion {

public:

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

        // 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 Quantity& centerx,
                const Quantity& centery,
                const Quantity& xwidth,
                const Quantity& ywidth,
                const CoordinateSystem& csys,
                const IPosition& imShape,
                const Vector<Stokes::StokesTypes>& stokes
        );

        // implicit copy constructor and destructor are fine

        AnnCenterBox& operator=(const AnnCenterBox& other);

        MDirection getCenter() const;

        Vector<Quantity> getWidths() const;

        // get the blc and trc direction coords for the box which
        // have been converted to the coordinate frame specified
        // when the object was constructed.
        Vector<MDirection> getCorners() const;

        virtual ostream& print(ostream &os) const;

private:
        Vector<Quantity> _widths;
        Vector<MDirection> _corners;
        Quantity _inpXCenter, _inpYCenter, _inpXWidth, _inpYWidth;

        void _init();
        void _doCorners();
};

}

#endif /* ASCIICENTERBOXREGION_H_ */