GaussHermiteConvolution.h

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// -*- LSST-C++ -*-
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#ifndef LSST_AFW_MATH_SHAPELETS_GaussHermiteConvolution
#define LSST_AFW_MATH_SHAPELETS_GaussHermiteConvolution

#include "ndarray.h"
#include "lsst/afw/geom/ellipses.h"
#include "lsst/shapelet/HermiteTransformMatrix.h"

#include <memory>

namespace lsst { namespace shapelet {

class ShapeletFunction;

class GaussHermiteConvolution {
public:

    static int computeRowOrder(int colOrder, int psfOrder) { return colOrder + psfOrder; }

    ndarray::Array<double const,2,2> evaluate(afw::geom::ellipses::Ellipse & ellipse) const;

    int getColOrder() const;

    int getRowOrder() const;

    GaussHermiteConvolution(int colOrder, ShapeletFunction const & psf);

    // Must be defined in .cc file so it can see Impl dtor.
    ~GaussHermiteConvolution();

    // No copying
    GaussHermiteConvolution ( const GaussHermiteConvolution & ) = delete;
    GaussHermiteConvolution & operator= ( const GaussHermiteConvolution & ) = delete;

    // No moving
    GaussHermiteConvolution ( GaussHermiteConvolution && ) = delete;
    GaussHermiteConvolution & operator= ( GaussHermiteConvolution && ) = delete;

#ifndef SWIG
    class Impl;
#endif

private:

    std::unique_ptr<Impl> _impl;
};


}} // namespace lsst::shapelet

#endif // !LSST_AFW_MATH_SHAPELETS_GaussHermiteConvolution