TrapezoidalPacker.h

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// -*- LSST-C++ -*-
/*
 * LSST Data Management System
 * Copyright 2008-2014 LSST Corporation.
 *
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#ifndef LSST_AFW_MATH_DETAIL_TrapezoidalPacker_h_INCLUDED
#define LSST_AFW_MATH_DETAIL_TrapezoidalPacker_h_INCLUDED

#include "lsst/afw/math/ChebyshevBoundedField.h"

namespace lsst { namespace afw { namespace math { namespace detail {

struct TrapezoidalPacker {

    explicit TrapezoidalPacker(ChebyshevBoundedFieldControl const & ctrl);

    void pack(
        ndarray::Array<double,1,1> const & out,
        ndarray::Array<double const,1,1> const & tx,
        ndarray::Array<double const,1,1> const & ty
    ) const;

    void pack(
        ndarray::Array<double,1,1> const & out,
        ndarray::Array<double const,2,2> const & unpacked
    ) const;

    void unpack(
        ndarray::Array<double,2,2> const & out,
        ndarray::Array<double const,1,1> const & packed
    ) const;

    ndarray::Array<double,2,2> unpack(
        ndarray::Array<double const,1,1> const & packed
    ) const;

    int nx;
    int ny;
    int m;
    int size;
};

}}}} // namespace lsst::afw::math::detail

#endif // !LSST_AFW_MATH_DETAIL_TrapezoidalPacker_h_INCLUDED