115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2015 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 MAPNIK_CSV_DATASOURCE_HPP
|
|
#define MAPNIK_CSV_DATASOURCE_HPP
|
|
|
|
// mapnik
|
|
#include <mapnik/datasource.hpp>
|
|
#include <mapnik/params.hpp>
|
|
#include <mapnik/query.hpp>
|
|
#include <mapnik/feature.hpp>
|
|
#include <mapnik/box2d.hpp>
|
|
#include <mapnik/coord.hpp>
|
|
#include <mapnik/feature_layer_desc.hpp>
|
|
#include <mapnik/value_types.hpp>
|
|
|
|
// boost
|
|
#include <boost/optional.hpp>
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wunused-parameter"
|
|
#pragma GCC diagnostic ignored "-Wunused-variable"
|
|
#pragma GCC diagnostic ignored "-Wunused-local-typedef"
|
|
#pragma GCC diagnostic ignored "-Wshadow"
|
|
#pragma GCC diagnostic ignored "-Wsign-conversion"
|
|
#pragma GCC diagnostic ignored "-Wconversion"
|
|
#include <boost/version.hpp>
|
|
#include <boost/geometry/index/rtree.hpp>
|
|
#pragma GCC diagnostic pop
|
|
// stl
|
|
#include <vector>
|
|
#include <deque>
|
|
#include <string>
|
|
|
|
template <std::size_t Max, std::size_t Min>
|
|
struct csv_linear : boost::geometry::index::linear<Max,Min> {};
|
|
|
|
namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree {
|
|
|
|
template <std::size_t Max, std::size_t Min>
|
|
struct options_type<csv_linear<Max,Min> >
|
|
{
|
|
using type = options<csv_linear<Max, Min>,
|
|
insert_default_tag,
|
|
choose_by_content_diff_tag,
|
|
split_default_tag,
|
|
linear_tag,
|
|
#if BOOST_VERSION >= 105700
|
|
node_variant_static_tag>;
|
|
#else
|
|
node_s_mem_static_tag>;
|
|
|
|
#endif
|
|
};
|
|
}}}}}
|
|
|
|
class csv_datasource : public mapnik::datasource
|
|
{
|
|
public:
|
|
using box_type = mapnik::box2d<double>;
|
|
using item_type = std::pair<box_type, std::pair<std::size_t, std::size_t>>;
|
|
using spatial_index_type = boost::geometry::index::rtree<item_type,csv_linear<16,4>>;
|
|
|
|
csv_datasource(mapnik::parameters const& params);
|
|
virtual ~csv_datasource ();
|
|
mapnik::datasource::datasource_t type() const;
|
|
static const char * name();
|
|
mapnik::featureset_ptr features(mapnik::query const& q) const;
|
|
mapnik::featureset_ptr features_at_point(mapnik::coord2d const& pt, double tol = 0) const;
|
|
mapnik::box2d<double> envelope() const;
|
|
mapnik::layer_descriptor get_descriptor() const;
|
|
boost::optional<mapnik::datasource_geometry_t> get_geometry_type() const;
|
|
template <typename T>
|
|
void parse_csv(T & stream, std::string const& separator);
|
|
|
|
private:
|
|
template <typename T>
|
|
boost::optional<mapnik::datasource_geometry_t> get_geometry_type_impl(T & stream) const;
|
|
|
|
mapnik::layer_descriptor desc_;
|
|
mapnik::box2d<double> extent_;
|
|
std::string filename_;
|
|
mapnik::value_integer row_limit_;
|
|
std::string inline_string_;
|
|
std::string separator_;
|
|
char quote_;
|
|
std::vector<std::string> headers_;
|
|
std::string manual_headers_;
|
|
bool strict_;
|
|
mapnik::context_ptr ctx_;
|
|
bool extent_initialized_;
|
|
std::unique_ptr<spatial_index_type> tree_;
|
|
detail::geometry_column_locator locator_;
|
|
bool has_disk_index_;
|
|
};
|
|
|
|
#endif // MAPNIK_CSV_DATASOURCE_HPP
|