125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
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// Copyright (c) 2017 GeometryFactory Sarl (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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// You can redistribute it and/or modify it under the terms of the GNU
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// General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0+
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//
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// Author(s) : Simon Giraudot
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#ifndef CGAL_CLASSIFICATION_FEATURE_BASE_H
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#define CGAL_CLASSIFICATION_FEATURE_BASE_H
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#include <CGAL/license/Classification.h>
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#include <boost/shared_ptr.hpp>
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#include <vector>
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namespace CGAL {
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namespace Classification {
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/*!
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\ingroup PkgClassificationFeature
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\brief Abstract class describing a classification feature that
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associates a scalar value to each item of the classification input.
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*/
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class Feature_base
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{
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std::string m_name;
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public:
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/// \cond SKIP_IN_MANUAL
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Feature_base() : m_name ("abstract_feature") { }
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virtual ~Feature_base() { }
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/// \endcond
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/*!
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\brief Returns the name of the feature (initialized to
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`abstract_feature` for `Feature_base`).
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*/
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const std::string& name() const { return m_name; }
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/*!
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\brief Changes the name of the feature.
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*/
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void set_name (const std::string& name) { m_name = name; }
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/*!
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\brief Returns the value taken by the feature for at the item for
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the item at position `index`. This method must be implemented by
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inherited classes.
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*/
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virtual float value (std::size_t index) = 0;
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};
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#ifdef DOXYGEN_RUNNING
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/*!
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\ingroup PkgClassificationFeature
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\brief %Handle to a `Feature_base`.
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\cgalModels Handle
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*/
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class Feature_handle { };
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#else
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//typedef boost::shared_ptr<Feature_base> Feature_handle;
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class Feature_set;
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class Feature_handle
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{
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friend Feature_set;
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boost::shared_ptr<boost::shared_ptr<Feature_base> > m_base;
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template <typename Feature>
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Feature_handle (Feature* f) : m_base (new boost::shared_ptr<Feature_base>(f)) { }
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template <typename Feature>
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void attach (Feature* f) const
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{
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*m_base = boost::shared_ptr<Feature_base>(f);
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}
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public:
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Feature_handle() : m_base (new boost::shared_ptr<Feature_base>()) { }
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Feature_base& operator*() { return **m_base; }
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Feature_base* operator->() { return m_base->get(); }
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const Feature_base& operator*() const { return **m_base; }
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const Feature_base* operator->() const { return m_base->get(); }
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bool operator< (const Feature_handle& other) const { return *m_base < *(other.m_base); }
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bool operator== (const Feature_handle& other) const { return *m_base == *(other.m_base); }
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};
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#endif
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} // namespace Classification
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} // namespace CGAL
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#endif // CGAL_CLASSIFICATION_FEATURE_BASE_H
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