Color.h

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// -*- lsst-c++ -*-
#ifndef LSST_AFW_IMAGE_COLOR_H
#define LSST_AFW_IMAGE_COLOR_H

#include <cmath>
#include <limits>
#include "lsst/utils/ieee.h"
#include "lsst/afw/image/Filter.h"

namespace lsst {
namespace afw {
namespace image {

class Color {
public :
    explicit Color(double g_r=std::numeric_limits<double>::quiet_NaN()) : _g_r(g_r) {}

    bool isIndeterminate() const { return utils::isnan(_g_r); }


    bool operator==(Color const & other) const {
        return (isIndeterminate() && other.isIndeterminate()) || other._g_r == _g_r;
    }
    bool operator!=(Color const & other) const { return !operator==(other); }

    double getLambdaEff(Filter const&   
                       ) const { return 1000*_g_r; }
private :
    double _g_r;
};

}}}  // lsst::afw::image

#endif