mapnik/plugins/input/topojson/topojson_featureset.hpp
2016-12-20 17:57:22 +01:00

54 lines
1.8 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2016 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef TOPOJSON_FEATURESET_HPP
#define TOPOJSON_FEATURESET_HPP
#include <mapnik/feature.hpp>
#include "topojson_datasource.hpp"
#include <vector>
#include <deque>
class topojson_featureset : public mapnik::Featureset
{
public:
typedef std::deque<topojson_datasource::item_type> array_type;
topojson_featureset(mapnik::topojson::topology const& topo,
mapnik::transcoder const& tr,
array_type && index_array);
virtual ~topojson_featureset();
mapnik::feature_ptr next();
private:
mapnik::context_ptr ctx_;
mapnik::box2d<double> box_;
mapnik::topojson::topology const& topo_;
mapnik::transcoder const& tr_;
const array_type index_array_;
array_type::const_iterator index_itr_;
array_type::const_iterator index_end_;
std::size_t feature_id_;
};
#endif // TOPOJSON_FEATURESET_HPP