source: branches/casa-release-4_3/external-alma/components/SpectralComponents/LogTransformedPolynomialSpectralElement.cc@ 3091

//# SpectralElement.cc: Describes (a set of related) spectral lines
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//# Associated Universities, Inc. Washington DC, USA.
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//# $Id: SpectralElement.cc 21024 2011-03-01 11:46:18Z gervandiepen $

#include <components/SpectralComponents/LogTransformedPolynomialSpectralElement.h>

#include <casa/iostream.h>

#define _ORIGIN  String("LogTransformedPolynomialSpectralElement::") + __FUNCTION__ + ":" + String::toString(__LINE__) + ": "


namespace casa { //# NAMESPACE CASA - BEGIN


LogTransformedPolynomialSpectralElement::LogTransformedPolynomialSpectralElement(
        uInt order
) : PolynomialSpectralElement(order) {
        ThrowIf(
                order == 0,
                "order must be greater than zero."
        );
        _setType(SpectralElement::LOGTRANSPOLY);
}

LogTransformedPolynomialSpectralElement::LogTransformedPolynomialSpectralElement(
        const Vector<Double>& param
) : PolynomialSpectralElement(param) {
        set(param);
        _setType(SpectralElement::LOGTRANSPOLY);
}

LogTransformedPolynomialSpectralElement::LogTransformedPolynomialSpectralElement(
        const LogTransformedPolynomialSpectralElement &other
) : PolynomialSpectralElement(other) {}

LogTransformedPolynomialSpectralElement::~LogTransformedPolynomialSpectralElement() {}

LogTransformedPolynomialSpectralElement& LogTransformedPolynomialSpectralElement::operator=(
        const LogTransformedPolynomialSpectralElement& other
) {
        if (this != &other) {
                PolynomialSpectralElement::operator=(other);
        }
        return *this;
}

SpectralElement* LogTransformedPolynomialSpectralElement::clone() const {
        return new LogTransformedPolynomialSpectralElement(*this);
}

ostream &operator<<(
        ostream &os, const LogTransformedPolynomialSpectralElement &elem
) {
        os << SpectralElement::fromType((elem.getType())) << " element: " << endl;
        uInt degree = elem.getDegree();
    os << "  Degree:    " << degree << endl;
    os << "  Function: ln(y) = ln(c0) ";
    ostringstream ss;
    Vector<Double> c = elem.get();
    ss << "c0: " << exp(c[0]) << endl;
    for (uInt i=1; i<=degree; i++) {
        os << " + c" << i << "*ln(x)";
        if (i > 1) {
                os << "**" << i;
        }
        ss << "c" << i << ": " << c[i] << endl;
    }
    os << endl;
    os << ss.str();
    return os;
}
}