casa6

#ifndef IMAGEANALYSIS_IMAGEEXPRCALCULATOR_H

#define IMAGEANALYSIS_IMAGEEXPRCALCULATOR_H

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#include <casacore/casa/namespace.h>

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namespace casacore{

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class String;

}

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namespace casa {

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template <class T> class ImageExprCalculator {

    // <summary>

    // Top level interface for computing the results of an image expression

    // </summary>

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    // <reviewed reviewer="" date="" tests="" demos="">

    // </reviewed>

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    // <prerequisite>

    // </prerequisite>

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    // <etymology>

    // </etymology>

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    // <synopsis>

    // </synopsis>

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public:

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    ImageExprCalculator() = delete;

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    // expression is the lattice expression to compute

    ImageExprCalculator(

        const casacore::String& expression, const casacore::String& outname, casacore::Bool overwrite

    );

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    ~ImageExprCalculator() {}

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    // the image from which to copy metadata, including the coordinate system,

    // imageInfo() and miscInfo()

    void setCopyMetaDataFromImage(const casacore::String& name) { _copyMetaDataFromImage = name; }

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    casacore::String getClass() const { const static casacore::String s = "ImageExprCalculator"; return s; }

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    // Compute the expression and return the image.

    SPIIT compute() const;

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    // modify image in place

    static void compute2(SPIIT image, const casacore::String& expr, casacore::Bool verbose);

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private:

    casacore::String _expr, _copyMetaDataFromImage, _outname;

    casacore::Bool _overwrite;

    mutable casacore::LogIO _log;

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    SPIIT _imagecalc(

        const casacore::LatticeExprNode& node, const casacore::IPosition& shape,

        const casacore::CoordinateSystem& csys, const casacore::LELImageCoord* const imCoord

    ) const;