tabulated_sampling.h

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//
// Copyright (c) 2016 by François Mauger <mauger@lpccaen.in2p3.fr>
//
// This file is part of Bayeux.
//
// Bayeux 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.
//
// Bayeux 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 GNU General Public License
// along with Bayeux. If not, see <http://www.gnu.org/licenses/>.

#ifndef MYGSL_TABULATED_SAMPLING_H
#define MYGSL_TABULATED_SAMPLING_H

// Standard library:
#include <vector>

// This project:
#include <mygsl/base_sampling.h>

namespace mygsl {

  class tabulated_sampling
    : public base_sampling
  {
  public:

    tabulated_sampling();

    virtual ~tabulated_sampling();

    virtual double get_min() const;

    virtual double get_max() const;

    std::size_t get_nsteps() const;

    std::size_t get_nsamples() const;

    double get_guard() const;

    double get_min_step() const;

    double get_max_step() const;

    virtual bool is_initialized() const;

    virtual void initialize(const datatools::properties &);

    virtual void reset();

    virtual bool value_to_index(const double x_,
                                std::size_t & index_,
                                sampling::index_classification_type & classification_flags_) const;

    virtual sampling::index_classification_type
    index_to_value(const std::size_t index_,
                   double & value_) const;

    void set_guard(const double guard_);

    void append(const double value_);

    void make_ordered(const std::vector<double> & values_, const double guard_ = 0.0);

    void lock();

  private:

    void _set_guard_(double guard_);

    void _check_guard_();

    void _init_();

    void _reset_();

  private:

    // Management:
    bool                _initialized_ = false; 

    // Configuration:
    std::vector<double> _table_; 
    double              _guard_; 

    // Internals:
    double              _min_step_; 
    double              _max_step_; 

  };

} // end of namespace mygsl

#endif // MYGSL_BASE_SAMPLING_H

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