ReducedShear.h

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// -*- lsst-c++ -*-

/*
 * LSST Data Management System
 * Copyright 2008, 2009, 2010 LSST Corporation.
 *
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program is free software: you can redistribute it and/or modify
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#ifndef LSST_AFW_GEOM_ELLIPSES_ReducedShear_h_INCLUDED
#define LSST_AFW_GEOM_ELLIPSES_ReducedShear_h_INCLUDED

#include "lsst/afw/geom/ellipses/EllipticityBase.h"

namespace lsst { namespace afw { namespace geom { namespace ellipses {

class Distortion;

class ConformalShear;

class ReducedShear : public detail::EllipticityBase {
public:

    explicit ReducedShear(std::complex<double> const & complex) : detail::EllipticityBase(complex) {}

    explicit ReducedShear(double e1=0.0, double e2=0.0) : detail::EllipticityBase(e1, e2) {}

    ReducedShear(ReducedShear const & other) : detail::EllipticityBase(other.getComplex()) {}

    explicit ReducedShear(Distortion const & other) { this->operator=(other); }

    explicit ReducedShear(ConformalShear const & other) { this->operator=(other); }

    ReducedShear & operator=(ReducedShear const & other) {
        _complex = other._complex;
        return *this;
    }

    ReducedShear & operator=(Distortion const & other);

    ReducedShear & operator=(ConformalShear const & other);

    Jacobian dAssign(ReducedShear const & other) {
        _complex = other._complex;
        return Jacobian::Identity();
    }

    Jacobian dAssign(Distortion const & other);

    Jacobian dAssign(ConformalShear const & other);

    double getAxisRatio() const;

    void normalize() {}

    static std::string getName() { return "ReducedShear"; }

};

}}}} // namespace lsst::afw::geom::ellipses

#endif // !LSST_AFW_GEOM_ELLIPSES_ReducedShear_h_INCLUDED