SdssCentroid.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
 * 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_SdssCentroid_h_INCLUDED
#define LSST_MEAS_BASE_SdssCentroid_h_INCLUDED

#include "lsst/pex/config.h"
#include "lsst/meas/base/Algorithm.h"
#include "lsst/meas/base/CentroidUtilities.h"
#include "lsst/meas/base/FlagHandler.h"
#include "lsst/meas/base/InputUtilities.h"

namespace lsst { namespace meas { namespace base {

class SdssCentroidControl {
public:

    LSST_CONTROL_FIELD(binmax, int, "maximum allowed binning");
    LSST_CONTROL_FIELD(peakMin, double, "if the peak's less than this insist on binning at least once");
    LSST_CONTROL_FIELD(wfac, double, "fiddle factor for adjusting the binning");
    LSST_CONTROL_FIELD(doFootprintCheck, bool,
                       "Do check that the centroid is contained in footprint.");
    LSST_CONTROL_FIELD(maxDistToPeak, double,
                       "If set > 0, Centroid Check also checks distance from footprint peak.");
    SdssCentroidControl() : binmax(16), peakMin(-1.0), wfac(1.5), doFootprintCheck(true), maxDistToPeak(-1.0) {}
};

class SdssCentroidAlgorithm : public SimpleAlgorithm {
public:

    enum {
        FAILURE=FlagHandler::FAILURE,
        EDGE,
        NO_SECOND_DERIVATIVE,
        ALMOST_NO_SECOND_DERIVATIVE,
        NOT_AT_MAXIMUM,
        N_FLAGS
    };

    typedef SdssCentroidControl Control;

    SdssCentroidAlgorithm(Control const & ctrl, std::string const & name, afw::table::Schema & schema);

    virtual void measure(
        afw::table::SourceRecord & measRecord,
        afw::image::Exposure<float> const & exposure
    ) const;

    virtual void fail(
        afw::table::SourceRecord & measRecord,
        MeasurementError * error=NULL
    ) const;

private:

    Control _ctrl;
    CentroidResultKey _centroidKey;
    FlagHandler _flagHandler;
    SafeCentroidExtractor _centroidExtractor;
    CentroidChecker _centroidChecker;
};

class SdssCentroidTransform : public CentroidTransform {
public:
    typedef SdssCentroidControl Control;

    SdssCentroidTransform(Control const & ctrl, std::string const & name, afw::table::SchemaMapper & mapper);
};

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

#endif // !LSST_MEAS_BASE_SdssCentroid_h_INCLUDED