Transform.h

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// -*- lsst-c++ -*-
/*
 * LSST Data Management System
 * Copyright 2008-2015 AURA/LSST.
 *
 * 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_MEAS_BASE_Transform_h_INCLUDED
#define LSST_MEAS_BASE_Transform_h_INCLUDED

#include <string>
#include "lsst/afw/image.h"
#include "lsst/afw/table.h"
#include "lsst/pex/exceptions.h"

namespace lsst { namespace meas { namespace base {

class BaseTransform {
public:

    explicit BaseTransform(std::string const & name) : _name(name) {}
    virtual ~BaseTransform() {}
    virtual void operator()(afw::table::SourceCatalog const & inputCatalog,
                            afw::table::BaseCatalog & outputCatalog,
                            afw::image::Wcs const & wcs,
                            afw::image::Calib const & calib) const = 0;

protected:

    void checkCatalogSize(afw::table::BaseCatalog const & cat1,
                          afw::table::BaseCatalog const & cat2) const {
        if (cat1.size() != cat2.size()) {
            throw LSST_EXCEPT(pex::exceptions::LengthError, "Catalog size mismatch");
        }
    }
    std::string _name;
};

}}} // namespace lsst::meas::base

#endif // !LSST_MEAS_BASE_Transform_h_INCLUDED