MultiShapeletBasis.h

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// -*- lsst-c++ -*-
/*
 * LSST Data Management System
 * Copyright 2008-2013 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
 * it under the terms of the GNU General Public License as published by
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#ifndef LSST_SHAPELET_MultiShapeletBasis_h_INCLUDED
#define LSST_SHAPELET_MultiShapeletBasis_h_INCLUDED
 
#include "lsst/shapelet/MultiShapeletFunction.h"
 
namespace lsst { namespace shapelet {
 
class MultiShapeletBasisComponent {
public:
 
    MultiShapeletBasisComponent(double radius, int order, ndarray::Array<double const,2,2> const & matrix);
 
    double getRadius() const { return _radius; }
 
    int getOrder() const { return _order; }
 
    ndarray::Array<double const,2,2> getMatrix() const { return _matrix; }
 
private:
    friend class MultiShapeletBasis;
 
    double _radius;
    int _order;
    ndarray::Array<double const,2,2> _matrix;
};
 
class MultiShapeletBasis {
public:
    typedef MultiShapeletBasisComponent Component;
    typedef std::vector<Component> ComponentVector;
    typedef ComponentVector::const_iterator Iterator;
 
    explicit MultiShapeletBasis(int size);
 
    int getSize() const { return _size; }
 
    int getComponentCount() const { return _components.size(); }
 
    Iterator begin() const { return _components.begin(); }
    Iterator end() const { return _components.end(); }
 
    void addComponent(double radius, int order, ndarray::Array<double const,2,2> const & matrix);
 
    void scale(double factor);
 
    void normalize();
 
    void merge(MultiShapeletBasis const & other);
 
    MultiShapeletFunction makeFunction(
        afw::geom::ellipses::Ellipse const & ellipse,
        ndarray::Array<double const,1,1> const & coefficients
    ) const;
 
private:
    int _size;
    ComponentVector _components;
};
 
}} // namespace lsst::shapelet
 
#endif // !LSST_SHAPELET_MultiShapeletBasis_h_INCLUDED