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// Copyright (c) 2017 GeometryFactory Sarl (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1/Classification/include/CGAL/Classification/Feature/Simple_feature.h $
// $Id: include/CGAL/Classification/Feature/Simple_feature.h b26b07a1242 $
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Simon Giraudot
#ifndef CGAL_CLASSIFICATION_SIMPLE_FEATURE_H
#define CGAL_CLASSIFICATION_SIMPLE_FEATURE_H
#include <CGAL/license/Classification.h>
#include <vector>
#include <CGAL/Classification/Feature_base.h>
namespace CGAL {
namespace Classification {
namespace Feature {
/*!
\ingroup PkgClassificationFeatures
%Feature based on a user-defined scalar field.
\tparam InputRange model of `ConstRange`. Its iterator type
is `RandomAccessIterator`.
\tparam PropertyMap model of `ReadablePropertyMap` whose key
type is the value type of the iterator of `PointRange` and value type
is statically castable to `float`.
*/
template <typename InputRange, typename PropertyMap>
class Simple_feature : public Feature_base
{
const InputRange& m_input;
PropertyMap m_pmap;
public:
/*!
\brief constructs the feature using an input range and a property map.
\param input point range.
\param property_map property map to access scalar field.
\param name name of the property (no default name is given).
*/
Simple_feature (const InputRange& input,
PropertyMap property_map,
const std::string& name)
: m_input (input), m_pmap (property_map)
{
this->set_name (name);
}
/// \cond SKIP_IN_MANUAL
virtual float value (std::size_t pt_index)
{
return static_cast<float> (get (m_pmap, *(m_input.begin()+pt_index)));
}
/// \endcond
};
} // namespace Feature
} // namespace Classification
} // namespace CGAL
#endif // CGAL_CLASSIFICATION_SIMPLE_FEATURE_H
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