casa6

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​

#include <components/ComponentModels/GaussianDeconvolver.h>

#include <casacore/casa/BasicMath/Math.h>

#include <casacore/scimath/Mathematics/GaussianBeam.h>

​

using namespace casacore;

namespace casa {

​

Bool GaussianDeconvolver::deconvolve(

    Angular2DGaussian& deconvolvedSize,

    const Angular2DGaussian& convolvedSize,

    const GaussianBeam& beam

) {

    Unit radians(String("rad"));

    Unit positionAngleModelUnit = deconvolvedSize.getPA(false).getFullUnit();

    Unit majorAxisModelUnit = deconvolvedSize.getMajor().getFullUnit();

    Unit minorAxisModelUnit = deconvolvedSize.getMinor().getFullUnit();

​

    // Get values in radians

    Double majorSource = convolvedSize.getMajor().getValue(radians);

    Double minorSource = convolvedSize.getMinor().getValue(radians);

    Double thetaSource = convolvedSize.getPA(true).getValue(radians);

    Double majorBeam = beam.getMajor().getValue(radians);

    Double minorBeam = beam.getMinor().getValue(radians);

    Double thetaBeam = beam.getPA(true).getValue(radians);

    // Do the sums

​

    Double alpha  = square(majorSource*cos(thetaSource)) +

        square(minorSource*sin(thetaSource)) -

        square(majorBeam*cos(thetaBeam)) -

        square(minorBeam*sin(thetaBeam));

    Double beta   = square(majorSource*sin(thetaSource)) +

        square(minorSource*cos(thetaSource)) -

        square(majorBeam*sin(thetaBeam)) -

        square(minorBeam*cos(thetaBeam));

    Double gamma  = 2 * ( (square(minorSource)-square(majorSource))*sin(thetaSource)*cos(thetaSource) -

        (square(minorBeam)-square(majorBeam))*sin(thetaBeam)*cos(thetaBeam) );