SeparableXYTransform.h

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

/* 
 * LSST Data Management System
 * Copyright 2015 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
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the LSST License Statement and 
 * the GNU General Public License along with this program.  If not, 
 * see <http://www.lsstcorp.org/LegalNotices/>.
 */

#ifndef LSST_AFW_GEOM_SEPARABLEXYTRANSFORM_H
#define LSST_AFW_GEOM_SEPARABLEXYTRANSFORM_H

#include "lsst/afw/geom/XYTransform.h"

namespace lsst {
namespace afw {
namespace geom {

class Functor;

class SeparableXYTransform : public XYTransform {

public:

   SeparableXYTransform(Functor const & xfunctor, Functor const & yfunctor);

   virtual ~SeparableXYTransform() {}
   
   virtual PTR(XYTransform) clone() const;

   virtual Point2D forwardTransform(Point2D const & point) const;

   virtual Point2D reverseTransform(Point2D const & point) const;

   Functor const & getXfunctor() const;

   Functor const & getYfunctor() const;

private:

   PTR(Functor) _xfunctor;
   PTR(Functor) _yfunctor;

};

} // namespace geom
} // namespace af
} // namespace lsst

#endif // LSST_AFW_GEOM_SEPARABLEXYTRANSFORM_H