CoordinateExpr.h

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

/* 
 * LSST Data Management System
 * Copyright 2008, 2009, 2010 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_COORDINATEEXPR_H
#define LSST_AFW_GEOM_COORDINATEEXPR_H

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

namespace lsst { namespace afw { namespace geom {

template<int N>
class CoordinateExpr : public CoordinateBase<CoordinateExpr<N>,bool,N> {
    typedef CoordinateBase<CoordinateExpr<N>,bool,N> Super;
public:

    explicit CoordinateExpr(bool val=false) : Super(val) {}

    template <typename Vector>
    explicit CoordinateExpr(Eigen::MatrixBase<Vector> const & vector) : Super(vector) {}

    CoordinateExpr and_(CoordinateExpr const & rhs) const;
    CoordinateExpr or_(CoordinateExpr const & rhs) const;
    CoordinateExpr not_() const;

};

template <int N>
inline bool all(CoordinateExpr<N> const & expr) {
    for (int n=0; n<N; ++n) if (!expr[n]) return false;
    return true;
}

template <int N>
inline bool any(CoordinateExpr<N> const & expr) {
    for (int n=0; n<N; ++n) if (expr[n]) return true;
    return false;
}

typedef CoordinateExpr<2> CoordinateExpr2;
typedef CoordinateExpr<3> CoordinateExpr3;

}}}

#endif